/** @exception JavaModelException if setting the source of the original compilation unit fails */
protected void executeOperation() throws JavaModelException {
try {
beginTask(Messages.workingCopy_commit, 2);
CompilationUnit workingCopy = getCompilationUnit();
if (ExternalJavaProject.EXTERNAL_PROJECT_NAME.equals(
workingCopy.getJavaProject().getElementName())) {
// case of a working copy without a resource
workingCopy.getBuffer().save(this.progressMonitor, this.force);
return;
}
ICompilationUnit primary = workingCopy.getPrimary();
boolean isPrimary = workingCopy.isPrimary();
JavaElementDeltaBuilder deltaBuilder = null;
PackageFragmentRoot root =
(PackageFragmentRoot) workingCopy.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
boolean isIncluded = !Util.isExcluded(workingCopy);
IFile resource = (IFile) workingCopy.getResource();
IJavaProject project = root.getJavaProject();
if (isPrimary
|| (root.validateOnClasspath().isOK()
&& isIncluded
&& resource.isAccessible()
&& Util.isValidCompilationUnitName(
workingCopy.getElementName(),
project.getOption(JavaCore.COMPILER_SOURCE, true),
project.getOption(JavaCore.COMPILER_COMPLIANCE, true)))) {
// force opening so that the delta builder can get the old info
if (!isPrimary && !primary.isOpen()) {
primary.open(null);
}
// creates the delta builder (this remembers the content of the cu) if:
// - it is not excluded
// - and it is not a primary or it is a non-consistent primary
if (isIncluded && (!isPrimary || !workingCopy.isConsistent())) {
deltaBuilder = new JavaElementDeltaBuilder(primary);
}
// save the cu
IBuffer primaryBuffer = primary.getBuffer();
if (!isPrimary) {
if (primaryBuffer == null) return;
char[] primaryContents = primaryBuffer.getCharacters();
boolean hasSaved = false;
try {
IBuffer workingCopyBuffer = workingCopy.getBuffer();
if (workingCopyBuffer == null) return;
primaryBuffer.setContents(workingCopyBuffer.getCharacters());
primaryBuffer.save(this.progressMonitor, this.force);
primary.makeConsistent(this);
hasSaved = true;
} finally {
if (!hasSaved) {
// restore original buffer contents since something went wrong
primaryBuffer.setContents(primaryContents);
}
}
} else {
// for a primary working copy no need to set the content of the buffer again
primaryBuffer.save(this.progressMonitor, this.force);
primary.makeConsistent(this);
}
} else {
// working copy on cu outside classpath OR resource doesn't exist yet
String encoding = null;
try {
encoding = resource.getCharset();
} catch (CoreException ce) {
// use no encoding
}
String contents = workingCopy.getSource();
if (contents == null) return;
try {
byte[] bytes = encoding == null ? contents.getBytes() : contents.getBytes(encoding);
ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
if (resource.exists()) {
resource.setContents(
stream,
this.force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
null);
} else {
resource.create(stream, this.force, this.progressMonitor);
}
} catch (CoreException e) {
throw new JavaModelException(e);
} catch (UnsupportedEncodingException e) {
throw new JavaModelException(e, IJavaModelStatusConstants.IO_EXCEPTION);
}
}
setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
// make sure working copy is in sync
workingCopy.updateTimeStamp((CompilationUnit) primary);
workingCopy.makeConsistent(this);
worked(1);
// build the deltas
if (deltaBuilder != null) {
deltaBuilder.buildDeltas();
// add the deltas to the list of deltas created during this operation
if (deltaBuilder.delta != null) {
addDelta(deltaBuilder.delta);
}
}
worked(1);
} finally {
done();
}
}
/*
* @see JavaElement#getPrimaryElement(boolean)
*/
public IJavaScriptElement getPrimaryElement(boolean checkOwner) {
CompilationUnit cu = (CompilationUnit) this.parent;
if (checkOwner && cu.isPrimary()) return this;
return cu.getImportContainer();
}