diff options
author | Christian Strømme <christian.stromme@digia.com> | 2013-09-18 01:30:54 +0200 |
---|---|---|
committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-09-20 00:59:55 +0200 |
commit | 9329f786da8e167130fa36b91ff288bfdb046ce1 (patch) | |
tree | b738eb06051ce51b3d537fba26458271d1f1893d /src/corelib | |
parent | ad4657f639a037b9c8330e3bf7a3ef03bdd299c6 (diff) |
Android: Add private API for jni in QtCore
When interfacing with Java API's on Android we need to write code using
the Java Native Interface (JNI). Writing JNI code requires a lot of
boilerplate code to be written. This patch contains API's to minimize the
amount of work needed to write JNI code.
QJNIEnvironmentPrivate:
On creation QJNIEnvironmentPrivate will attach the current running
thread to the Java VM, and expose the java environment.
QJNIObjectPrivate:
Wrapps around a Java class enabling the user to access the class from C++.
Change-Id: Ib633437ae36ff513d934292e9eeefcdd5b757d29
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Diffstat (limited to 'src/corelib')
-rw-r--r-- | src/corelib/kernel/kernel.pri | 8 | ||||
-rw-r--r-- | src/corelib/kernel/qjni.cpp | 2105 | ||||
-rw-r--r-- | src/corelib/kernel/qjni_p.h | 264 |
3 files changed, 2374 insertions, 3 deletions
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri index 828e517ee2..26ad9f488c 100644 --- a/src/corelib/kernel/kernel.pri +++ b/src/corelib/kernel/kernel.pri @@ -157,7 +157,9 @@ blackberry { android:!android-no-sdk { SOURCES += \ kernel/qjnionload.cpp \ - kernel/qjnihelpers.cpp + kernel/qjnihelpers.cpp \ + kernel/qjni.cpp HEADERS += \ - kernel/qjnihelpers_p.h -}
\ No newline at end of file + kernel/qjnihelpers_p.h \ + kernel/qjni_p.h +} diff --git a/src/corelib/kernel/qjni.cpp b/src/corelib/kernel/qjni.cpp new file mode 100644 index 0000000000..17678fcbba --- /dev/null +++ b/src/corelib/kernel/qjni.cpp @@ -0,0 +1,2105 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qjni_p.h" +#include "qjnihelpers_p.h" +#include <QtCore/qthreadstorage.h> +#include <QtCore/qhash.h> +#include <QtCore/qstring.h> + +QT_BEGIN_NAMESPACE + +static inline QString keyBase() +{ + return QStringLiteral("%1%2%3"); +} + +static QString qt_convertJString(jstring string) +{ + QJNIEnvironmentPrivate env; + int strLength = env->GetStringLength(string); + QString res(strLength, Qt::Uninitialized); + env->GetStringRegion(string, 0, strLength, reinterpret_cast<jchar *>(res.data())); + return res; +} + +typedef QHash<QString, jclass> JClassHash; +Q_GLOBAL_STATIC(JClassHash, cachedClasses) + +static jclass getCachedClass(JNIEnv *env, const char *className) +{ + jclass clazz = 0; + QString key = QLatin1String(className); + QHash<QString, jclass>::iterator it = cachedClasses->find(key); + if (it == cachedClasses->end()) { + jclass c = env->FindClass(className); + if (env->ExceptionCheck()) { + c = 0; +#ifdef QT_DEBUG + env->ExceptionDescribe(); +#endif // QT_DEBUG + env->ExceptionClear(); + } + if (c) + clazz = static_cast<jclass>(env->NewGlobalRef(c)); + cachedClasses->insert(key, clazz); + } else { + clazz = it.value(); + } + return clazz; +} + +typedef QHash<QString, jmethodID> JMethodIDHash; +Q_GLOBAL_STATIC(JMethodIDHash, cachedMethodID) + +static jmethodID getCachedMethodID(JNIEnv *env, + jclass clazz, + const char *name, + const char *sig, + bool isStatic = false) +{ + jmethodID id = 0; + // TODO: We need to use something else then the ref. from clazz to avoid collisions. + QString key = keyBase().arg(size_t(clazz)).arg(QLatin1String(name)).arg(QLatin1String(sig)); + QHash<QString, jmethodID>::iterator it = cachedMethodID->find(key); + if (it == cachedMethodID->end()) { + if (isStatic) + id = env->GetStaticMethodID(clazz, name, sig); + else + id = env->GetMethodID(clazz, name, sig); + + if (env->ExceptionCheck()) { + id = 0; +#ifdef QT_DEBUG + env->ExceptionDescribe(); +#endif // QT_DEBUG + env->ExceptionClear(); + } + + cachedMethodID->insert(key, id); + } else { + id = it.value(); + } + return id; +} + +typedef QHash<QString, jfieldID> JFieldIDHash; +Q_GLOBAL_STATIC(JFieldIDHash, cachedFieldID) + +static jfieldID getCachedFieldID(JNIEnv *env, + jclass clazz, + const char *name, + const char *sig, + bool isStatic = false) +{ + jfieldID id = 0; + QString key = keyBase().arg(size_t(clazz)).arg(QLatin1String(name)).arg(QLatin1String(sig)); + QHash<QString, jfieldID>::iterator it = cachedFieldID->find(key); + if (it == cachedFieldID->end()) { + if (isStatic) + id = env->GetStaticFieldID(clazz, name, sig); + else + id = env->GetFieldID(clazz, name, sig); + + if (env->ExceptionCheck()) { + id = 0; +#ifdef QT_DEBUG + env->ExceptionDescribe(); +#endif // QT_DEBUG + env->ExceptionClear(); + } + + cachedFieldID->insert(key, id); + } else { + id = it.value(); + } + return id; +} + +Q_GLOBAL_STATIC(QThreadStorage<int>, refCount) + +QJNIEnvironmentPrivate::QJNIEnvironmentPrivate() + : jniEnv(0) +{ + JavaVM *vm = QtAndroidPrivate::javaVM(); + if (vm->GetEnv((void**)&jniEnv, JNI_VERSION_1_6) != JNI_EDETACHED) + return; + + if (vm->AttachCurrentThread(&jniEnv, 0) < 0) + return; + + if (!refCount->hasLocalData()) + refCount->setLocalData(1); + else + refCount->setLocalData(refCount->localData() + 1); +} + +JNIEnv *QJNIEnvironmentPrivate::operator->() +{ + return jniEnv; +} + +QJNIEnvironmentPrivate::operator JNIEnv* () const +{ + return jniEnv; +} + +QJNIEnvironmentPrivate::~QJNIEnvironmentPrivate() +{ + if (!jniEnv) + return; + + const int newRef = refCount->localData() - 1; + refCount->setLocalData(newRef); + + if (newRef == 0) + QtAndroidPrivate::javaVM()->DetachCurrentThread(); + + jniEnv = 0; +} + +QJNIObjectData::QJNIObjectData() + : m_jobject(0), + m_jclass(0), + m_own_jclass(true) +{ + +} + +QJNIObjectData::~QJNIObjectData() +{ + QJNIEnvironmentPrivate env; + if (m_jobject) + env->DeleteGlobalRef(m_jobject); + if (m_jclass && m_own_jclass) + env->DeleteGlobalRef(m_jclass); +} + +QJNIObjectPrivate::QJNIObjectPrivate() + : d(new QJNIObjectData()) +{ + +} + +QJNIObjectPrivate::QJNIObjectPrivate(const char *className) + : d(new QJNIObjectData()) +{ + QJNIEnvironmentPrivate env; + d->m_jclass = getCachedClass(env, className); + d->m_own_jclass = false; + if (d->m_jclass) { + // get default constructor + jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", "()V"); + if (constructorId) { + jobject obj = env->NewObject(d->m_jclass, constructorId); + if (obj) { + d->m_jobject = env->NewGlobalRef(obj); + env->DeleteLocalRef(obj); + } + } + } +} + +QJNIObjectPrivate::QJNIObjectPrivate(const char *className, const char *sig, ...) + : d(new QJNIObjectData()) +{ + QJNIEnvironmentPrivate env; + d->m_jclass = getCachedClass(env, className); + d->m_own_jclass = false; + if (d->m_jclass) { + jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", sig); + if (constructorId) { + va_list args; + va_start(args, sig); + jobject obj = env->NewObjectV(d->m_jclass, constructorId, args); + va_end(args); + if (obj) { + d->m_jobject = env->NewGlobalRef(obj); + env->DeleteLocalRef(obj); + } + } + } +} + +QJNIObjectPrivate::QJNIObjectPrivate(jclass clazz) + : d(new QJNIObjectData()) +{ + QJNIEnvironmentPrivate env; + d->m_jclass = static_cast<jclass>(env->NewGlobalRef(clazz)); + if (d->m_jclass) { + // get default constructor + jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", "()V"); + if (constructorId) { + jobject obj = env->NewObject(d->m_jclass, constructorId); + if (obj) { + d->m_jobject = env->NewGlobalRef(obj); + env->DeleteLocalRef(obj); + } + } + } +} + +QJNIObjectPrivate::QJNIObjectPrivate(jclass clazz, const char *sig, ...) + : d(new QJNIObjectData()) +{ + QJNIEnvironmentPrivate env; + if (clazz) { + d->m_jclass = static_cast<jclass>(env->NewGlobalRef(clazz)); + if (d->m_jclass) { + jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", sig); + if (constructorId) { + va_list args; + va_start(args, sig); + jobject obj = env->NewObjectV(d->m_jclass, constructorId, args); + va_end(args); + if (obj) { + d->m_jobject = env->NewGlobalRef(obj); + env->DeleteLocalRef(obj); + } + } + } + } +} + +QJNIObjectPrivate::QJNIObjectPrivate(jobject obj) + : d(new QJNIObjectData()) +{ + if (!obj) + return; + + QJNIEnvironmentPrivate env; + d->m_jobject = env->NewGlobalRef(obj); + d->m_jclass = static_cast<jclass>(env->NewGlobalRef(env->GetObjectClass(d->m_jobject))); +} + +template <> +void QJNIObjectPrivate::callMethod<void>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + env->CallVoidMethodV(d->m_jobject, id, args); + } +} + +template <> +void QJNIObjectPrivate::callMethod<void>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + callMethod<void>(methodName, sig, args); + va_end(args); +} + +template <> +jboolean QJNIObjectPrivate::callMethod<jboolean>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallBooleanMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jboolean QJNIObjectPrivate::callMethod<jboolean>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jboolean res = callMethod<jboolean>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jbyte QJNIObjectPrivate::callMethod<jbyte>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallByteMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jbyte QJNIObjectPrivate::callMethod<jbyte>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jbyte res = callMethod<jbyte>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jchar QJNIObjectPrivate::callMethod<jchar>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallCharMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jchar QJNIObjectPrivate::callMethod<jchar>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jchar res = callMethod<jchar>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jshort QJNIObjectPrivate::callMethod<jshort>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallShortMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jshort QJNIObjectPrivate::callMethod<jshort>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jshort res = callMethod<jshort>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jint QJNIObjectPrivate::callMethod<jint>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallIntMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jint QJNIObjectPrivate::callMethod<jint>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jint res = callMethod<jint>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jlong QJNIObjectPrivate::callMethod<jlong>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallLongMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jlong QJNIObjectPrivate::callMethod<jlong>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jlong res = callMethod<jlong>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jfloat QJNIObjectPrivate::callMethod<jfloat>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallFloatMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jfloat QJNIObjectPrivate::callMethod<jfloat>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jfloat res = callMethod<jfloat>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +jdouble QJNIObjectPrivate::callMethod<jdouble>(const char *methodName, const char *sig, va_list args) const +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallDoubleMethodV(d->m_jobject, id, args); + } + return res; +} + +template <> +jdouble QJNIObjectPrivate::callMethod<jdouble>(const char *methodName, const char *sig, ...) const +{ + va_list args; + va_start(args, sig); + jdouble res = callMethod<jdouble>(methodName, sig, args); + va_end(args); + return res; +} + +template <> +void QJNIObjectPrivate::callMethod<void>(const char *methodName) const +{ + callMethod<void>(methodName, "()V"); +} + +template <> +jboolean QJNIObjectPrivate::callMethod<jboolean>(const char *methodName) const +{ + return callMethod<jboolean>(methodName, "()Z"); +} + +template <> +jbyte QJNIObjectPrivate::callMethod<jbyte>(const char *methodName) const +{ + return callMethod<jbyte>(methodName, "()B"); +} + +template <> +jchar QJNIObjectPrivate::callMethod<jchar>(const char *methodName) const +{ + return callMethod<jchar>(methodName, "()C"); +} + +template <> +jshort QJNIObjectPrivate::callMethod<jshort>(const char *methodName) const +{ + return callMethod<jshort>(methodName, "()S"); +} + +template <> +jint QJNIObjectPrivate::callMethod<jint>(const char *methodName) const +{ + return callMethod<jint>(methodName, "()I"); +} + +template <> +jlong QJNIObjectPrivate::callMethod<jlong>(const char *methodName) const +{ + return callMethod<jlong>(methodName, "()J"); +} + +template <> +jfloat QJNIObjectPrivate::callMethod<jfloat>(const char *methodName) const +{ + return callMethod<jfloat>(methodName, "()F"); +} + +template <> +jdouble QJNIObjectPrivate::callMethod<jdouble>(const char *methodName) const +{ + return callMethod<jdouble>(methodName, "()D"); +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + env->CallStaticVoidMethodV(clazz, id, args); + } + } +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + callStaticMethod<void>(className, methodName, sig, args); + va_end(args); +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + env->CallStaticVoidMethodV(clazz, id, args); + } +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + callStaticMethod<void>(clazz, methodName, sig, args); + va_end(args); +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticBooleanMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jboolean res = callStaticMethod<jboolean>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticBooleanMethodV(clazz, id, args); + } + + return res; +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jboolean res = callStaticMethod<jboolean>(clazz, methodName, sig); + va_end(args); + return res; +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticByteMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jbyte res = callStaticMethod<jbyte>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticByteMethodV(clazz, id, args); + } + + return res; +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jbyte res = callStaticMethod<jbyte>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticCharMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jchar res = callStaticMethod<jchar>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticCharMethodV(clazz, id, args); + } + + return res; +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jchar res = callStaticMethod<jchar>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticShortMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jshort res = callStaticMethod<jshort>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticShortMethodV(clazz, id, args); + } + + return res; +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jshort res = callStaticMethod<jshort>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticIntMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jint res = callStaticMethod<jint>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticIntMethodV(clazz, id, args); + } + + return res; +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jint res = callStaticMethod<jint>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticLongMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jlong res = callStaticMethod<jlong>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticLongMethodV(clazz, id, args); + } + + return res; +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jlong res = callStaticMethod<jlong>(clazz, methodName, sig); + va_end(args); + return res; +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticFloatMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jfloat res = callStaticMethod<jfloat>(className, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticFloatMethodV(clazz, id, args); + } + + return res; +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jfloat res = callStaticMethod<jfloat>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticDoubleMethodV(clazz, id, args); + } + } + + return res; +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jdouble res = callStaticMethod<jdouble>(className, methodName, sig); + va_end(args); + return res; +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticDoubleMethodV(clazz, id, args); + } + + return res; +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + jdouble res = callStaticMethod<jdouble>(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(const char *className, const char *methodName) +{ + callStaticMethod<void>(className, methodName, "()V"); +} + +template <> +void QJNIObjectPrivate::callStaticMethod<void>(jclass clazz, const char *methodName) +{ + callStaticMethod<void>(clazz, methodName, "()V"); +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(const char *className, const char *methodName) +{ + return callStaticMethod<jboolean>(className, methodName, "()Z"); +} + +template <> +jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jboolean>(clazz, methodName, "()Z"); +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(const char *className, const char *methodName) +{ + return callStaticMethod<jbyte>(className, methodName, "()B"); +} + +template <> +jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jbyte>(clazz, methodName, "()B"); +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(const char *className, const char *methodName) +{ + return callStaticMethod<jchar>(className, methodName, "()C"); +} + +template <> +jchar QJNIObjectPrivate::callStaticMethod<jchar>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jchar>(clazz, methodName, "()C"); +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(const char *className, const char *methodName) +{ + return callStaticMethod<jshort>(className, methodName, "()S"); +} + +template <> +jshort QJNIObjectPrivate::callStaticMethod<jshort>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jshort>(clazz, methodName, "()S"); +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(const char *className, const char *methodName) +{ + return callStaticMethod<jint>(className, methodName, "()I"); +} + +template <> +jint QJNIObjectPrivate::callStaticMethod<jint>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jint>(clazz, methodName, "()I"); +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(const char *className, const char *methodName) +{ + return callStaticMethod<jlong>(className, methodName, "()J"); +} + +template <> +jlong QJNIObjectPrivate::callStaticMethod<jlong>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jlong>(clazz, methodName, "()J"); +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(const char *className, const char *methodName) +{ + return callStaticMethod<jfloat>(className, methodName, "()F"); +} + +template <> +jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jfloat>(clazz, methodName, "()F"); +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(const char *className, const char *methodName) +{ + return callStaticMethod<jdouble>(className, methodName, "()D"); +} + +template <> +jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(jclass clazz, const char *methodName) +{ + return callStaticMethod<jdouble>(clazz, methodName, "()D"); +} + +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod(const char *methodName, + const char *sig, + va_list args) const +{ + QJNIEnvironmentPrivate env; + jobject res = 0; + jmethodID id = getCachedMethodID(env, d->m_jclass, methodName, sig); + if (id) { + res = env->CallObjectMethodV(d->m_jobject, id, args); + } + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod(const char *methodName, + const char *sig, + ...) const +{ + va_list args; + va_start(args, sig); + QJNIObjectPrivate res = callObjectMethod(methodName, sig, args); + va_end(args); + return res; +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jstring>(const char *methodName) const +{ + return callObjectMethod(methodName, "()Ljava/lang/String;"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jbooleanArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[Z"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jbyteArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[B"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jshortArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[S"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jintArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[I"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jlongArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[J"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jfloatArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[F"); +} + +template <> +QJNIObjectPrivate QJNIObjectPrivate::callObjectMethod<jdoubleArray>(const char *methodName) const +{ + return callObjectMethod(methodName, "()[D"); +} + +QJNIObjectPrivate QJNIObjectPrivate::callStaticObjectMethod(const char *className, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jobject res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) { + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticObjectMethodV(clazz, id, args); + } + } + + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::callStaticObjectMethod(const char *className, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + QJNIObjectPrivate res = callStaticObjectMethod(className, methodName, sig, args); + va_end(args); + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::callStaticObjectMethod(jclass clazz, + const char *methodName, + const char *sig, + va_list args) +{ + QJNIEnvironmentPrivate env; + jobject res = 0; + jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); + if (id) { + res = env->CallStaticObjectMethodV(clazz, id, args); + } + + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::callStaticObjectMethod(jclass clazz, + const char *methodName, + const char *sig, + ...) +{ + va_list args; + va_start(args, sig); + QJNIObjectPrivate res = callStaticObjectMethod(clazz, methodName, sig, args); + va_end(args); + return res; +} + +template <> +jboolean QJNIObjectPrivate::getField<jboolean>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "Z"); + if (id) + res = env->GetBooleanField(d->m_jobject, id); + + return res; +} + +template <> +jbyte QJNIObjectPrivate::getField<jbyte>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "B"); + if (id) + res = env->GetByteField(d->m_jobject, id); + + return res; +} + +template <> +jchar QJNIObjectPrivate::getField<jchar>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "C"); + if (id) + res = env->GetCharField(d->m_jobject, id); + + return res; +} + +template <> +jshort QJNIObjectPrivate::getField<jshort>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "S"); + if (id) + res = env->GetShortField(d->m_jobject, id); + + return res; +} + +template <> +jint QJNIObjectPrivate::getField<jint>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "I"); + if (id) + res = env->GetIntField(d->m_jobject, id); + + return res; +} + +template <> +jlong QJNIObjectPrivate::getField<jlong>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "J"); + if (id) + res = env->GetLongField(d->m_jobject, id); + + return res; +} + +template <> +jfloat QJNIObjectPrivate::getField<jfloat>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "F"); + if (id) + res = env->GetFloatField(d->m_jobject, id); + + return res; +} + +template <> +jdouble QJNIObjectPrivate::getField<jdouble>(const char *fieldName) const +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "D"); + if (id) + res = env->GetDoubleField(d->m_jobject, id); + + return res; +} + +template <> +jboolean QJNIObjectPrivate::getStaticField<jboolean>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "Z", true); + if (id) + res = env->GetStaticBooleanField(clazz, id); + + return res; +} + +template <> +jboolean QJNIObjectPrivate::getStaticField<jboolean>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jboolean res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jboolean>(clazz, fieldName); + + return res; +} + +template <> +jbyte QJNIObjectPrivate::getStaticField<jbyte>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "B", true); + if (id) + res = env->GetStaticByteField(clazz, id); + + return res; +} + +template <> +jbyte QJNIObjectPrivate::getStaticField<jbyte>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jbyte res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jbyte>(clazz, fieldName); + + return res; +} + +template <> +jchar QJNIObjectPrivate::getStaticField<jchar>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "C", true); + if (id) + res = env->GetStaticCharField(clazz, id); + + return res; +} + +template <> +jchar QJNIObjectPrivate::getStaticField<jchar>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jchar res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jchar>(clazz, fieldName); + + return res; +} + +template <> +jshort QJNIObjectPrivate::getStaticField<jshort>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "S", true); + if (id) + res = env->GetStaticShortField(clazz, id); + + return res; +} + +template <> +jshort QJNIObjectPrivate::getStaticField<jshort>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jshort res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jshort>(clazz, fieldName); + + return res; +} + +template <> +jint QJNIObjectPrivate::getStaticField<jint>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "I", true); + if (id) + res = env->GetStaticIntField(clazz, id); + + return res; +} + +template <> +jint QJNIObjectPrivate::getStaticField<jint>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jint res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jint>(clazz, fieldName); + + return res; +} + +template <> +jlong QJNIObjectPrivate::getStaticField<jlong>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "J", true); + if (id) + res = env->GetStaticLongField(clazz, id); + + return res; +} + +template <> +jlong QJNIObjectPrivate::getStaticField<jlong>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jlong res = 0; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jlong>(clazz, fieldName); + + return res; +} + +template <> +jfloat QJNIObjectPrivate::getStaticField<jfloat>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "F", true); + if (id) + res = env->GetStaticFloatField(clazz, id); + + return res; +} + +template <> +jfloat QJNIObjectPrivate::getStaticField<jfloat>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jfloat res = 0.f; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jfloat>(clazz, fieldName); + + return res; +} + +template <> +jdouble QJNIObjectPrivate::getStaticField<jdouble>(jclass clazz, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "D", true); + if (id) + res = env->GetStaticDoubleField(clazz, id); + + return res; +} + +template <> +jdouble QJNIObjectPrivate::getStaticField<jdouble>(const char *className, const char *fieldName) +{ + QJNIEnvironmentPrivate env; + jdouble res = 0.; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticField<jdouble>(clazz, fieldName); + + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::getObjectField(const char *fieldName, + const char *sig) const +{ + QJNIEnvironmentPrivate env; + jobject res = 0; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, sig); + if (id) + res = env->GetObjectField(d->m_jobject, id); + + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::getStaticObjectField(const char *className, + const char *fieldName, + const char *sig) +{ + QJNIEnvironmentPrivate env; + QJNIObjectPrivate res; + jclass clazz = getCachedClass(env, className); + if (clazz) + res = getStaticObjectField(clazz, fieldName, sig); + + return res; +} + +QJNIObjectPrivate QJNIObjectPrivate::getStaticObjectField(jclass clazz, + const char *fieldName, + const char *sig) +{ + QJNIEnvironmentPrivate env; + jobject res = 0; + jfieldID id = getCachedFieldID(env, clazz, fieldName, sig, true); + if (id) + res = env->GetStaticObjectField(clazz, id); + + return res; +} + +template <> +void QJNIObjectPrivate::setField<jboolean>(const char *fieldName, jboolean value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "Z"); + if (id) + env->SetBooleanField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jbyte>(const char *fieldName, jbyte value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "B"); + if (id) + env->SetByteField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jchar>(const char *fieldName, jchar value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "C"); + if (id) + env->SetCharField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jshort>(const char *fieldName, jshort value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "S"); + if (id) + env->SetShortField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jint>(const char *fieldName, jint value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "I"); + if (id) + env->SetIntField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jlong>(const char *fieldName, jlong value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "J"); + if (id) + env->SetLongField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jfloat>(const char *fieldName, jfloat value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "F"); + if (id) + env->SetFloatField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jdouble>(const char *fieldName, jdouble value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "D"); + if (id) + env->SetDoubleField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jbooleanArray>(const char *fieldName, jbooleanArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[Z"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jbyteArray>(const char *fieldName, jbyteArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[B"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jcharArray>(const char *fieldName, jcharArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[C"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jshortArray>(const char *fieldName, jshortArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[S"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jintArray>(const char *fieldName, jintArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[I"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jlongArray>(const char *fieldName, jlongArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[J"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jfloatArray>(const char *fieldName, jfloatArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[F"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jdoubleArray>(const char *fieldName, jdoubleArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "[D"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jstring>(const char *fieldName, jstring value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, "Ljava/lang/String;"); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jobject>(const char *fieldName, + const char *sig, + jobject value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, sig); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setField<jobjectArray>(const char *fieldName, + const char *sig, + jobjectArray value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, d->m_jclass, fieldName, sig); + if (id) + env->SetObjectField(d->m_jobject, id, value); + +} + +template <> +void QJNIObjectPrivate::setStaticField<jboolean>(jclass clazz, + const char *fieldName, + jboolean value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "Z", true); + if (id) + env->SetStaticBooleanField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jboolean>(const char *className, + const char *fieldName, + jboolean value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jboolean>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jbyte>(jclass clazz, + const char *fieldName, + jbyte value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "B", true); + if (id) + env->SetStaticByteField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jbyte>(const char *className, + const char *fieldName, + jbyte value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jbyte>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jchar>(jclass clazz, + const char *fieldName, + jchar value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "C", true); + if (id) + env->SetStaticCharField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jchar>(const char *className, + const char *fieldName, + jchar value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jchar>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jshort>(jclass clazz, + const char *fieldName, + jshort value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "S", true); + if (id) + env->SetStaticShortField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jshort>(const char *className, + const char *fieldName, + jshort value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jshort>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jint>(jclass clazz, + const char *fieldName, + jint value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "I", true); + if (id) + env->SetStaticIntField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jint>(const char *className, + const char *fieldName, + jint value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jint>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jlong>(jclass clazz, + const char *fieldName, + jlong value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "J", true); + if (id) + env->SetStaticLongField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jlong>(const char *className, + const char *fieldName, + jlong value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jlong>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jfloat>(jclass clazz, + const char *fieldName, + jfloat value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "F", true); + if (id) + env->SetStaticFloatField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jfloat>(const char *className, + const char *fieldName, + jfloat value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jfloat>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jdouble>(jclass clazz, + const char *fieldName, + jdouble value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, "D", true); + if (id) + env->SetStaticDoubleField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jdouble>(const char *className, + const char *fieldName, + jdouble value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jdouble>(clazz, fieldName, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jobject>(jclass clazz, + const char *fieldName, + const char *sig, + jobject value) +{ + QJNIEnvironmentPrivate env; + jfieldID id = getCachedFieldID(env, clazz, fieldName, sig, true); + if (id) + env->SetStaticObjectField(clazz, id, value); +} + +template <> +void QJNIObjectPrivate::setStaticField<jobject>(const char *className, + const char *fieldName, + const char *sig, + jobject value) +{ + QJNIEnvironmentPrivate env; + jclass clazz = getCachedClass(env, className); + if (clazz) + setStaticField<jobject>(clazz, fieldName, sig, value); +} + +QJNIObjectPrivate QJNIObjectPrivate::fromString(const QString &string) +{ + QJNIEnvironmentPrivate env; + jstring res = env->NewString(reinterpret_cast<const jchar*>(string.constData()), + string.length()); + return res; +} + +QString QJNIObjectPrivate::toString() const +{ + if (!isValid()) + return QString(); + + QJNIObjectPrivate string = callObjectMethod<jstring>("toString"); + return qt_convertJString(static_cast<jstring>(string.object())); +} + +bool QJNIObjectPrivate::isClassAvailable(const char *className) +{ + QJNIEnvironmentPrivate env; + + if (!env) + return false; + + jclass clazz = getCachedClass(env, className); + return (clazz != 0); +} + +bool QJNIObjectPrivate::isValid() const +{ + return d->m_jobject; +} + +bool QJNIObjectPrivate::isSameObject(jobject obj) const +{ + QJNIEnvironmentPrivate env; + return env->IsSameObject(d->m_jobject, obj); +} + +bool QJNIObjectPrivate::isSameObject(const QJNIObjectPrivate &other) const +{ + return isSameObject(other.d->m_jobject); +} + +QT_END_NAMESPACE + diff --git a/src/corelib/kernel/qjni_p.h b/src/corelib/kernel/qjni_p.h new file mode 100644 index 0000000000..912b5dbee4 --- /dev/null +++ b/src/corelib/kernel/qjni_p.h @@ -0,0 +1,264 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#ifndef QJNI_P_H +#define QJNI_P_H + +#include <jni.h> +#include <QtCore/qglobal.h> +#include <QtCore/qsharedpointer.h> + +QT_BEGIN_NAMESPACE + +class Q_CORE_EXPORT QJNIEnvironmentPrivate +{ +public: + QJNIEnvironmentPrivate(); + ~QJNIEnvironmentPrivate(); + JNIEnv *operator->(); + operator JNIEnv*() const; + +private: + friend class QJNIEnvironment; + Q_DISABLE_COPY(QJNIEnvironmentPrivate) + JNIEnv *jniEnv; +}; + +class Q_CORE_EXPORT QJNIObjectData +{ +public: + QJNIObjectData(); + ~QJNIObjectData(); + jobject m_jobject; + jclass m_jclass; + bool m_own_jclass; +}; + +class Q_CORE_EXPORT QJNIObjectPrivate +{ +public: + QJNIObjectPrivate(); + explicit QJNIObjectPrivate(const char *className); + QJNIObjectPrivate(const char *className, const char *sig, ...); + explicit QJNIObjectPrivate(jclass clazz); + QJNIObjectPrivate(jclass clazz, const char *sig, ...); + QJNIObjectPrivate(jobject obj); + + template <typename T> + T callMethod(const char *methodName, + const char *sig, + ...) const; + template <typename T> + T callMethod(const char *methodName) const; + template <typename T> + QJNIObjectPrivate callObjectMethod(const char *methodName) const; + QJNIObjectPrivate callObjectMethod(const char *methodName, + const char *sig, + ...) const; + template <typename T> + static T callStaticMethod(const char *className, + const char *methodName, + const char *sig, ...); + template <typename T> + static T callStaticMethod(const char *className, + const char *methodName); + template <typename T> + static T callStaticMethod(jclass clazz, + const char *methodName, + const char *sig, ...); + template <typename T> + static T callStaticMethod(jclass clazz, + const char *methodName); + static QJNIObjectPrivate callStaticObjectMethod(const char *className, + const char *methodName, + const char *sig, ...); + + static QJNIObjectPrivate callStaticObjectMethod(jclass clazz, + const char *methodName, + const char *sig, ...); + + template <typename T> + T getField(const char *fieldName) const; + template <typename T> + static T getStaticField(const char *className, const char *fieldName); + template <typename T> + static T getStaticField(jclass clazz, const char *fieldName); + + QJNIObjectPrivate getObjectField(const char *fieldName, const char *sig) const; + static QJNIObjectPrivate getStaticObjectField(const char *className, + const char *fieldName, + const char *sig); + static QJNIObjectPrivate getStaticObjectField(jclass clazz, + const char *fieldName, + const char *sig); + + template <typename T> + void setField(const char *fieldName, T value); + template <typename T> + void setField(const char *fieldName, const char *sig, T value); + template <typename T> + static void setStaticField(const char *className, + const char *fieldName, + T value); + template <typename T> + static void setStaticField(const char *className, + const char *fieldName, + const char *sig, + T value); + template <typename T> + static void setStaticField(jclass clazz, + const char *fieldName, + const char *sig, + T value); + + template <typename T> + static void setStaticField(jclass clazz, + const char *fieldName, + T value); + + static QJNIObjectPrivate fromString(const QString &string); + QString toString() const; + + static bool isClassAvailable(const char *className); + bool isValid() const; + jobject object() const { return d->m_jobject; } + + template <typename T> + inline QJNIObjectPrivate &operator=(T o) + { + jobject jobj = static_cast<jobject>(o); + if (!isSameObject(jobj)) { + d = QSharedPointer<QJNIObjectData>(new QJNIObjectData()); + QJNIEnvironmentPrivate env; + d->m_jobject = env->NewGlobalRef(jobj); + d->m_jclass = static_cast<jclass>(env->NewGlobalRef(env->GetObjectClass(jobj))); + } + + return *this; + } + +private: + friend class QJNIObject; + + template <typename T> + T callMethod(const char *methodName, + const char *sig, + va_list args) const; + QJNIObjectPrivate callObjectMethod(const char *methodName, + const char *sig, + va_list args) const; + template <typename T> + static T callStaticMethod(const char *className, + const char *methodName, + const char *sig, va_list args); + template <typename T> + static T callStaticMethod(jclass clazz, + const char *methodName, + const char *sig, va_list args); + static QJNIObjectPrivate callStaticObjectMethod(const char *className, + const char *methodName, + const char *sig, va_list args); + + static QJNIObjectPrivate callStaticObjectMethod(jclass clazz, + const char *methodName, + const char *sig, va_list args); + + bool isSameObject(jobject obj) const; + bool isSameObject(const QJNIObjectPrivate &other) const; + + friend bool operator==(const QJNIObjectPrivate &, const QJNIObjectPrivate &); + friend bool operator!=(const QJNIObjectPrivate&, const QJNIObjectPrivate&); + template <typename T> friend bool operator!=(const QJNIObjectPrivate&, T); + template <typename T> friend bool operator==(const QJNIObjectPrivate&, T); + template <typename T> friend bool operator!=(T, const QJNIObjectPrivate&); + template <typename T> friend bool operator==(T, const QJNIObjectPrivate&); + + QSharedPointer<QJNIObjectData> d; +}; + +inline bool operator==(const QJNIObjectPrivate&obj1, const QJNIObjectPrivate&obj2) +{ + return obj1.isSameObject(obj2); +} + +inline bool operator!=(const QJNIObjectPrivate&obj1, const QJNIObjectPrivate&obj2) +{ + return !obj1.isSameObject(obj2); +} + +template <typename T> +inline bool operator==(const QJNIObjectPrivate &obj1, T obj2) +{ + return obj1.isSameObject(static_cast<jobject>(obj2)); +} + +template <typename T> +inline bool operator==(T obj1, const QJNIObjectPrivate &obj2) +{ + return obj2.isSameObject(static_cast<jobject>(obj1)); +} + +template <typename T> +inline bool operator!=(const QJNIObjectPrivate &obj1, T obj2) +{ + return !obj1.isSameObject(obj2); +} + +template <typename T> +inline bool operator!=(T obj1, const QJNIObjectPrivate &obj2) +{ + return !obj2.isSameObject(obj1); +} + +QT_END_NAMESPACE + +#endif // QJNI_P_H |