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/****************************************************************************
**
** Copyright (C) 2015 Jake Petroules.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qbs.
**
** 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 The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/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 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, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
package io.qt.qbs.tools.utils;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.net.URI;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.NestingKind;
import javax.tools.FileObject;
import javax.tools.JavaFileObject;
/**
* Represents a FileObject that discards its output when written.
*/
public class NullFileObject implements FileObject, JavaFileObject {
FileObject obj;
public NullFileObject(FileObject obj) {
this.obj = obj;
}
@Override
public URI toUri() {
return obj.toUri();
}
@Override
public String getName() {
return obj.getName();
}
@Override
public InputStream openInputStream() throws IOException {
return new InputStream() {
@Override
public int read() throws IOException {
return -1;
}
};
}
@Override
public OutputStream openOutputStream() throws IOException {
return new OutputStream() {
@Override
public void write(int b) throws IOException {
}
};
}
@Override
public Reader openReader(boolean ignoreEncodingErrors) throws IOException {
return new Reader() {
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
return -1;
}
@Override
public void close() throws IOException {
}
};
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors)
throws IOException {
return obj.getCharContent(ignoreEncodingErrors);
}
@Override
public Writer openWriter() throws IOException {
return new Writer() {
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
}
@Override
public void flush() throws IOException {
}
@Override
public void close() throws IOException {
}
};
}
@Override
public long getLastModified() {
return obj.getLastModified();
}
@Override
public boolean delete() {
return obj.delete();
}
@Override
public Kind getKind() {
if (obj instanceof JavaFileObject) {
return ((JavaFileObject) obj).getKind();
}
throw new UnsupportedOperationException();
}
@Override
public boolean isNameCompatible(String simpleName, Kind kind) {
if (obj instanceof JavaFileObject) {
return ((JavaFileObject) obj).isNameCompatible(simpleName, kind);
}
throw new UnsupportedOperationException();
}
@Override
public NestingKind getNestingKind() {
if (obj instanceof JavaFileObject) {
return ((JavaFileObject) obj).getNestingKind();
}
throw new UnsupportedOperationException();
}
@Override
public Modifier getAccessLevel() {
if (obj instanceof JavaFileObject) {
return ((JavaFileObject) obj).getAccessLevel();
}
throw new UnsupportedOperationException();
}
}
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