diff options
Diffstat (limited to 'src/corelib/kernel/qjni.cpp')
| -rw-r--r-- | src/corelib/kernel/qjni.cpp | 177 |
1 files changed, 105 insertions, 72 deletions
diff --git a/src/corelib/kernel/qjni.cpp b/src/corelib/kernel/qjni.cpp index 4581b70ca7..173127b063 100644 --- a/src/corelib/kernel/qjni.cpp +++ b/src/corelib/kernel/qjni.cpp @@ -1,40 +1,32 @@ /**************************************************************************** ** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Copyright (C) 2014 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. ** -** $QT_BEGIN_LICENSE:LGPL$ +** $QT_BEGIN_LICENSE:LGPL21$ ** 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 +** 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. +** General Public License version 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** 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 +** 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. -** -** ** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -83,29 +75,58 @@ static inline bool exceptionCheckAndClear(JNIEnv *env) typedef QHash<QString, jclass> JClassHash; Q_GLOBAL_STATIC(JClassHash, cachedClasses) -static jclass getCachedClass(JNIEnv *env, const char *className) +static QString toDotEncodedClassName(const char *className) { - jclass clazz = 0; - QString key = QLatin1String(className); - QHash<QString, jclass>::iterator it = cachedClasses->find(key); - if (it == cachedClasses->end()) { - QJNIObjectPrivate classLoader = QtAndroidPrivate::classLoader(); - if (!classLoader.isValid()) - return 0; - - QJNIObjectPrivate stringName = QJNIObjectPrivate::fromString(QString::fromLatin1(className).replace(QLatin1Char('/'), - QLatin1Char('.'))); - QJNIObjectPrivate classObject = classLoader.callObjectMethod("loadClass", - "(Ljava/lang/String;)Ljava/lang/Class;", - stringName.object()); - - if (!exceptionCheckAndClear(env) && classObject.isValid()) - clazz = static_cast<jclass>(env->NewGlobalRef(classObject.object())); - - cachedClasses->insert(key, clazz); - } else { - clazz = it.value(); + return QString::fromLatin1(className).replace(QLatin1Char('/'), QLatin1Char('.')); +} + +static jclass getCachedClass(const QString &classDotEnc) +{ + QHash<QString, jclass>::iterator it = cachedClasses->find(classDotEnc); + + if (it == cachedClasses->end()) + return 0; + + return it.value(); +} + +static jclass findClass(const char *className, JNIEnv *env) +{ + const QString &classDotEnc = toDotEncodedClassName(className); + jclass clazz = getCachedClass(classDotEnc); + if (clazz != 0) + return clazz; + + jclass fclazz = env->FindClass(className); + if (!exceptionCheckAndClear(env)) { + clazz = static_cast<jclass>(env->NewGlobalRef(fclazz)); + env->DeleteLocalRef(fclazz); } + + cachedClasses->insert(classDotEnc, clazz); + return clazz; +} + +static jclass loadClass(const char *className, JNIEnv *env) +{ + const QString &classDotEnc = toDotEncodedClassName(className); + jclass clazz = getCachedClass(classDotEnc); + if (clazz != 0) + return clazz; + + QJNIObjectPrivate classLoader = QtAndroidPrivate::classLoader(); + if (!classLoader.isValid()) + return 0; + + QJNIObjectPrivate stringName = QJNIObjectPrivate::fromString(classDotEnc); + QJNIObjectPrivate classObject = classLoader.callObjectMethod("loadClass", + "(Ljava/lang/String;)Ljava/lang/Class;", + stringName.object()); + + if (!exceptionCheckAndClear(env) && classObject.isValid()) + clazz = static_cast<jclass>(env->NewGlobalRef(classObject.object())); + + cachedClasses->insert(classDotEnc, clazz); return clazz; } @@ -201,6 +222,18 @@ JNIEnv *QJNIEnvironmentPrivate::operator->() return jniEnv; } +jclass QJNIEnvironmentPrivate::findClass(const char *className, JNIEnv *env) +{ + jclass clazz = 0; + if (env != 0) + clazz = ::findClass(className, env); + + if (clazz == 0) + clazz = loadClass(className, QJNIEnvironmentPrivate()); + + return clazz; +} + QJNIEnvironmentPrivate::operator JNIEnv* () const { return jniEnv; @@ -237,7 +270,7 @@ QJNIObjectPrivate::QJNIObjectPrivate(const char *className) : d(new QJNIObjectData()) { QJNIEnvironmentPrivate env; - d->m_jclass = getCachedClass(env, className); + d->m_jclass = loadClass(className, env); d->m_own_jclass = false; if (d->m_jclass) { // get default constructor @@ -256,7 +289,7 @@ QJNIObjectPrivate::QJNIObjectPrivate(const char *className, const char *sig, ... : d(new QJNIObjectData()) { QJNIEnvironmentPrivate env; - d->m_jclass = getCachedClass(env, className); + d->m_jclass = loadClass(className, env); d->m_own_jclass = false; if (d->m_jclass) { jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", sig); @@ -277,7 +310,7 @@ QJNIObjectPrivate::QJNIObjectPrivate(const char *className, const char *sig, va_ : d(new QJNIObjectData()) { QJNIEnvironmentPrivate env; - d->m_jclass = getCachedClass(env, className); + d->m_jclass = loadClass(className, env); d->m_own_jclass = false; if (d->m_jclass) { jmethodID constructorId = getCachedMethodID(env, d->m_jclass, "<init>", sig); @@ -619,7 +652,7 @@ void QJNIObjectPrivate::callStaticMethod<void>(const char *className, va_list args) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -673,7 +706,7 @@ jboolean QJNIObjectPrivate::callStaticMethod<jboolean>(const char *className, { QJNIEnvironmentPrivate env; jboolean res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -734,7 +767,7 @@ jbyte QJNIObjectPrivate::callStaticMethod<jbyte>(const char *className, { QJNIEnvironmentPrivate env; jbyte res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -795,7 +828,7 @@ jchar QJNIObjectPrivate::callStaticMethod<jchar>(const char *className, { QJNIEnvironmentPrivate env; jchar res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -856,7 +889,7 @@ jshort QJNIObjectPrivate::callStaticMethod<jshort>(const char *className, { QJNIEnvironmentPrivate env; jshort res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -917,7 +950,7 @@ jint QJNIObjectPrivate::callStaticMethod<jint>(const char *className, { QJNIEnvironmentPrivate env; jint res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -978,7 +1011,7 @@ jlong QJNIObjectPrivate::callStaticMethod<jlong>(const char *className, { QJNIEnvironmentPrivate env; jlong res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -1039,7 +1072,7 @@ jfloat QJNIObjectPrivate::callStaticMethod<jfloat>(const char *className, { QJNIEnvironmentPrivate env; jfloat res = 0.f; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -1100,7 +1133,7 @@ jdouble QJNIObjectPrivate::callStaticMethod<jdouble>(const char *className, { QJNIEnvironmentPrivate env; jdouble res = 0.; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -1345,7 +1378,7 @@ QJNIObjectPrivate QJNIObjectPrivate::callStaticObjectMethod(const char *classNam { QJNIEnvironmentPrivate env; jobject res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) { jmethodID id = getCachedMethodID(env, clazz, methodName, sig, true); if (id) { @@ -1516,7 +1549,7 @@ jboolean QJNIObjectPrivate::getStaticField<jboolean>(const char *className, cons { QJNIEnvironmentPrivate env; jboolean res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jboolean>(clazz, fieldName); @@ -1540,7 +1573,7 @@ jbyte QJNIObjectPrivate::getStaticField<jbyte>(const char *className, const char { QJNIEnvironmentPrivate env; jbyte res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jbyte>(clazz, fieldName); @@ -1564,7 +1597,7 @@ jchar QJNIObjectPrivate::getStaticField<jchar>(const char *className, const char { QJNIEnvironmentPrivate env; jchar res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jchar>(clazz, fieldName); @@ -1588,7 +1621,7 @@ jshort QJNIObjectPrivate::getStaticField<jshort>(const char *className, const ch { QJNIEnvironmentPrivate env; jshort res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jshort>(clazz, fieldName); @@ -1612,7 +1645,7 @@ jint QJNIObjectPrivate::getStaticField<jint>(const char *className, const char * { QJNIEnvironmentPrivate env; jint res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jint>(clazz, fieldName); @@ -1636,7 +1669,7 @@ jlong QJNIObjectPrivate::getStaticField<jlong>(const char *className, const char { QJNIEnvironmentPrivate env; jlong res = 0; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jlong>(clazz, fieldName); @@ -1660,7 +1693,7 @@ jfloat QJNIObjectPrivate::getStaticField<jfloat>(const char *className, const ch { QJNIEnvironmentPrivate env; jfloat res = 0.f; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jfloat>(clazz, fieldName); @@ -1684,7 +1717,7 @@ jdouble QJNIObjectPrivate::getStaticField<jdouble>(const char *className, const { QJNIEnvironmentPrivate env; jdouble res = 0.; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticField<jdouble>(clazz, fieldName); @@ -1714,7 +1747,7 @@ QJNIObjectPrivate QJNIObjectPrivate::getStaticObjectField(const char *className, { QJNIEnvironmentPrivate env; QJNIObjectPrivate res; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) res = getStaticObjectField(clazz, fieldName, sig); @@ -1950,7 +1983,7 @@ void QJNIObjectPrivate::setStaticField<jboolean>(const char *className, jboolean value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jboolean>(clazz, fieldName, value); } @@ -1972,7 +2005,7 @@ void QJNIObjectPrivate::setStaticField<jbyte>(const char *className, jbyte value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jbyte>(clazz, fieldName, value); } @@ -1994,7 +2027,7 @@ void QJNIObjectPrivate::setStaticField<jchar>(const char *className, jchar value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jchar>(clazz, fieldName, value); } @@ -2016,7 +2049,7 @@ void QJNIObjectPrivate::setStaticField<jshort>(const char *className, jshort value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jshort>(clazz, fieldName, value); } @@ -2038,7 +2071,7 @@ void QJNIObjectPrivate::setStaticField<jint>(const char *className, jint value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jint>(clazz, fieldName, value); } @@ -2060,7 +2093,7 @@ void QJNIObjectPrivate::setStaticField<jlong>(const char *className, jlong value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jlong>(clazz, fieldName, value); } @@ -2082,7 +2115,7 @@ void QJNIObjectPrivate::setStaticField<jfloat>(const char *className, jfloat value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jfloat>(clazz, fieldName, value); } @@ -2104,7 +2137,7 @@ void QJNIObjectPrivate::setStaticField<jdouble>(const char *className, jdouble value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jdouble>(clazz, fieldName, value); } @@ -2128,7 +2161,7 @@ void QJNIObjectPrivate::setStaticField<jobject>(const char *className, jobject value) { QJNIEnvironmentPrivate env; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); if (clazz) setStaticField<jobject>(clazz, fieldName, sig, value); } @@ -2159,7 +2192,7 @@ bool QJNIObjectPrivate::isClassAvailable(const char *className) if (!env) return false; - jclass clazz = getCachedClass(env, className); + jclass clazz = loadClass(className, env); return (clazz != 0); } |