/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Stephan Herrmann - Contribution for Bug 337935 - Test failures when run as an IDE (org.eclipse.sdk.ide)
*******************************************************************************/
package org.eclipse.jdt.internal.core;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IBuffer;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaModelStatusConstants;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.ToolFactory;
import org.eclipse.jdt.core.WorkingCopyOwner;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.core.util.ClassFileBytesDisassembler;
import org.eclipse.jdt.core.util.IClassFileReader;
import org.eclipse.jdt.internal.core.util.Disassembler;
import org.eclipse.jdt.internal.core.util.Util;
/**
* A working copy on an <code>IClassFile</code>.
*/
public class ClassFileWorkingCopy extends CompilationUnit {
public ClassFile classFile;
public ClassFileWorkingCopy(ClassFile classFile, WorkingCopyOwner owner) {
super((PackageFragment) classFile.getParent(), ((BinaryType) classFile.getType()).getSourceFileName(null/*no info available*/), owner);
this.classFile = classFile;
}
public void commitWorkingCopy(boolean force, IProgressMonitor monitor) throws JavaModelException {
throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, this));
}
public IBuffer getBuffer() throws JavaModelException {
if (isWorkingCopy())
return super.getBuffer();
else
return this.classFile.getBuffer();
}
public char[] getContents() {
try {
IBuffer buffer = getBuffer();
if (buffer == null) return CharOperation.NO_CHAR;
char[] characters = buffer.getCharacters();
if (characters == null) return CharOperation.NO_CHAR;
return characters;
} catch (JavaModelException e) {
return CharOperation.NO_CHAR;
}
}
public IPath getPath() {
return this.classFile.getPath();
}
public IJavaElement getPrimaryElement(boolean checkOwner) {
if (checkOwner && isPrimary()) return this;
return new ClassFileWorkingCopy(this.classFile, DefaultWorkingCopyOwner.PRIMARY);
}
public IResource resource(PackageFragmentRoot root) {
if (root.isArchive())
return root.resource(root);
return this.classFile.resource(root);
}
/**
* @see Openable#openBuffer(IProgressMonitor, Object)
*/
protected IBuffer openBuffer(IProgressMonitor pm, Object info) throws JavaModelException {
// create buffer
IBuffer buffer = BufferManager.createBuffer(this);
// set the buffer source
IBuffer classFileBuffer = this.classFile.getBuffer();
if (classFileBuffer != null) {
buffer.setContents(classFileBuffer.getCharacters());
} else {
// Disassemble
IClassFileReader reader = ToolFactory.createDefaultClassFileReader(this.classFile, IClassFileReader.ALL);
Disassembler disassembler = new Disassembler();
String contents = disassembler.disassemble(reader, Util.getLineSeparator("", getJavaProject()), ClassFileBytesDisassembler.WORKING_COPY); //$NON-NLS-1$
buffer.setContents(contents);
}
// add buffer to buffer cache
BufferManager bufManager = getBufferManager();
bufManager.addBuffer(buffer);
// listen to buffer changes
buffer.addBufferChangedListener(this);
return buffer;
}
protected void toStringName(StringBuffer buffer) {
buffer.append(this.classFile.getElementName());
}
}