protected boolean checkForClassFileChanges(
IResourceDelta binaryDelta, ClasspathMultiDirectory md, int segmentCount)
throws CoreException {
IResource resource = binaryDelta.getResource();
// remember that if inclusion & exclusion patterns change then a full build is done
boolean isExcluded =
(md.exclusionPatterns != null || md.inclusionPatterns != null)
&& Util.isExcluded(resource, md.inclusionPatterns, md.exclusionPatterns);
switch (resource.getType()) {
case IResource.FOLDER:
if (isExcluded && md.inclusionPatterns == null)
return true; // no need to go further with this delta since its children cannot be
// included
IResourceDelta[] children = binaryDelta.getAffectedChildren();
for (int i = 0, l = children.length; i < l; i++)
if (!checkForClassFileChanges(children[i], md, segmentCount)) return false;
return true;
case IResource.FILE:
if (!isExcluded
&& org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(resource.getName())) {
// perform full build if a managed class file has been changed
IPath typePath =
resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
if (this.newState.isKnownType(typePath.toString())) {
if (JavaBuilder.DEBUG)
System.out.println(
"MUST DO FULL BUILD. Found change to class file " + typePath); // $NON-NLS-1$
return false;
}
return true;
}
}
return true;
}
@Override
public void resourceChanged(IResourceChangeEvent e) {
IResourceDelta delta = e.getDelta();
try {
if (delta != null && isInstalled) {
delta.accept(this);
}
} catch (CoreException x) {
log.warn("Error handling resourceChanged", x);
}
}
private boolean hasStructuralDelta() {
// handle case when currentProject has only .class file folders and/or jar files... no
// source/output folders
IResourceDelta delta = getDelta(this.currentProject);
if (delta != null && delta.getKind() != IResourceDelta.NO_CHANGE) {
ClasspathLocation[] classFoldersAndJars =
(ClasspathLocation[]) this.binaryLocationsPerProject.get(this.currentProject);
if (classFoldersAndJars != null) {
for (int i = 0, l = classFoldersAndJars.length; i < l; i++) {
ClasspathLocation classFolderOrJar =
classFoldersAndJars[i]; // either a .class file folder or a zip/jar file
if (classFolderOrJar != null) {
IPath p = classFolderOrJar.getProjectRelativePath();
if (p != null) {
IResourceDelta binaryDelta = delta.findMember(p);
if (binaryDelta != null && binaryDelta.getKind() != IResourceDelta.NO_CHANGE)
return true;
}
}
}
}
}
return false;
}
protected boolean findAffectedSourceFiles(
IResourceDelta delta, ClasspathLocation[] classFoldersAndJars, IProject prereqProject) {
for (int i = 0, l = classFoldersAndJars.length; i < l; i++) {
ClasspathLocation bLocation = classFoldersAndJars[i];
// either a .class file folder or a zip/jar file
if (bLocation != null) { // skip unchanged output folder
IPath p = bLocation.getProjectRelativePath();
if (p != null) {
IResourceDelta binaryDelta = delta.findMember(p);
if (binaryDelta != null) {
if (bLocation instanceof ClasspathJar) {
if (JavaBuilder.DEBUG)
System.out.println(
"ABORTING incremental build... found delta to jar/zip file"); //$NON-NLS-1$
return false; // do full build since jar file was changed (added/removed were caught
// as classpath change)
}
if (binaryDelta.getKind() == IResourceDelta.ADDED
|| binaryDelta.getKind() == IResourceDelta.REMOVED) {
if (JavaBuilder.DEBUG)
System.out.println(
"ABORTING incremental build... found added/removed binary folder"); //$NON-NLS-1$
return false; // added/removed binary folder should not make it here (classpath
// change), but handle anyways
}
int segmentCount = binaryDelta.getFullPath().segmentCount();
IResourceDelta[] children =
binaryDelta.getAffectedChildren(); // .class files from class folder
StringSet structurallyChangedTypes = null;
if (bLocation.isOutputFolder())
structurallyChangedTypes =
this.newState.getStructurallyChangedTypes(
this.javaBuilder.getLastState(prereqProject));
for (int j = 0, m = children.length; j < m; j++)
findAffectedSourceFiles(children[j], segmentCount, structurallyChangedTypes);
this.notifier.checkCancel();
}
}
}
}
return true;
}
protected boolean findSourceFiles(
IResourceDelta sourceDelta, ClasspathMultiDirectory md, int segmentCount)
throws CoreException {
// When a package becomes a type or vice versa, expect 2 deltas,
// one on the folder & one on the source file
IResource resource = sourceDelta.getResource();
// remember that if inclusion & exclusion patterns change then a full build is done
boolean isExcluded =
(md.exclusionPatterns != null || md.inclusionPatterns != null)
&& Util.isExcluded(resource, md.inclusionPatterns, md.exclusionPatterns);
switch (resource.getType()) {
case IResource.FOLDER:
if (isExcluded && md.inclusionPatterns == null)
return true; // no need to go further with this delta since its children cannot be
// included
switch (sourceDelta.getKind()) {
case IResourceDelta.ADDED:
if (!isExcluded) {
IPath addedPackagePath = resource.getFullPath().removeFirstSegments(segmentCount);
createFolder(
addedPackagePath, md.binaryFolder); // ensure package exists in the output folder
// see if any known source file is from the same package... classpath already includes
// new package
if (this.sourceLocations.length > 1
&& this.newState.isKnownPackage(addedPackagePath.toString())) {
if (JavaBuilder.DEBUG)
System.out.println(
"Skipped dependents of added package " + addedPackagePath); // $NON-NLS-1$
} else {
if (JavaBuilder.DEBUG)
System.out.println("Found added package " + addedPackagePath); // $NON-NLS-1$
addDependentsOf(addedPackagePath, true);
}
}
// $FALL-THROUGH$ collect all the source files
case IResourceDelta.CHANGED:
IResourceDelta[] children = sourceDelta.getAffectedChildren();
for (int i = 0, l = children.length; i < l; i++)
if (!findSourceFiles(children[i], md, segmentCount)) return false;
return true;
case IResourceDelta.REMOVED:
if (isExcluded) {
// since this folder is excluded then there is nothing to delete (from this md), but
// must walk any included subfolders
children = sourceDelta.getAffectedChildren();
for (int i = 0, l = children.length; i < l; i++)
if (!findSourceFiles(children[i], md, segmentCount)) return false;
return true;
}
IPath removedPackagePath = resource.getFullPath().removeFirstSegments(segmentCount);
if (this.sourceLocations.length > 1) {
for (int i = 0, l = this.sourceLocations.length; i < l; i++) {
if (this.sourceLocations[i].sourceFolder.getFolder(removedPackagePath).exists()) {
// only a package fragment was removed, same as removing multiple source files
createFolder(
removedPackagePath,
md.binaryFolder); // ensure package exists in the output folder
IResourceDelta[] removedChildren = sourceDelta.getAffectedChildren();
for (int j = 0, m = removedChildren.length; j < m; j++)
if (!findSourceFiles(removedChildren[j], md, segmentCount)) return false;
return true;
}
}
}
if ((sourceDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
// same idea as moving a source file
// see bug 163200
IResource movedFolder =
this.javaBuilder.workspaceRoot.getFolder(sourceDelta.getMovedToPath());
JavaBuilder.removeProblemsAndTasksFor(movedFolder);
}
IFolder removedPackageFolder = md.binaryFolder.getFolder(removedPackagePath);
if (removedPackageFolder.exists()) removedPackageFolder.delete(IResource.FORCE, null);
// add dependents even when the package thinks it does not exist to be on the safe side
if (JavaBuilder.DEBUG)
System.out.println("Found removed package " + removedPackagePath); // $NON-NLS-1$
addDependentsOf(removedPackagePath, true);
this.newState.removePackage(sourceDelta);
}
return true;
case IResource.FILE:
if (isExcluded) return true;
String resourceName = resource.getName();
// GROOVY start
// determine if this is a Groovy project
final boolean isInterestingProject =
LanguageSupportFactory.isInterestingProject(this.javaBuilder.getProject());
// GROOVY end
// GROOVY start
/* old {
if (org.eclipse.jdt.internal.core.util.Util.isJavaLikeFileName(resourceName)) {
} new */
// GRECLIPSE-404 must call 'isJavaLikeFile' directly in order to make the Scala-Eclipse
// plugin's weaving happy
if ((!isInterestingProject
&& org.eclipse.jdt.internal.core.util.Util.isJavaLikeFileName(resourceName)
&& !LanguageSupportFactory.isInterestingSourceFile(resourceName))
|| (isInterestingProject
&& LanguageSupportFactory.isSourceFile(resourceName, isInterestingProject))) {
// GROOVY end
IPath typePath =
resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
String typeLocator = resource.getProjectRelativePath().toString();
switch (sourceDelta.getKind()) {
case IResourceDelta.ADDED:
if (JavaBuilder.DEBUG)
System.out.println("Compile this added source file " + typeLocator); // $NON-NLS-1$
this.sourceFiles.add(new SourceFile((IFile) resource, md, true));
String typeName = typePath.toString();
if (!this.newState.isDuplicateLocator(
typeName, typeLocator)) { // adding dependents results in 2 duplicate errors
if (JavaBuilder.DEBUG)
System.out.println("Found added source file " + typeName); // $NON-NLS-1$
addDependentsOf(typePath, true);
}
return true;
case IResourceDelta.REMOVED:
char[][] definedTypeNames = this.newState.getDefinedTypeNamesFor(typeLocator);
if (definedTypeNames == null) { // defined a single type matching typePath
removeClassFile(typePath, md.binaryFolder);
if ((sourceDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
// remove problems and tasks for a compilation unit that is being moved (to
// another package or renamed)
// if the target file is a compilation unit, the new cu will be recompiled
// if the target file is a non-java resource, then markers are removed
// see bug 2857
IResource movedFile =
this.javaBuilder.workspaceRoot.getFile(sourceDelta.getMovedToPath());
JavaBuilder.removeProblemsAndTasksFor(movedFile);
}
} else {
if (JavaBuilder.DEBUG)
System.out.println(
"Found removed source file " + typePath.toString()); // $NON-NLS-1$
addDependentsOf(
typePath,
true); // add dependents of the source file since it may be involved in a name
// collision
if (definedTypeNames.length
> 0) { // skip it if it failed to successfully define a type
IPath packagePath = typePath.removeLastSegments(1);
for (int i = 0, l = definedTypeNames.length; i < l; i++)
removeClassFile(
packagePath.append(new String(definedTypeNames[i])), md.binaryFolder);
}
}
this.newState.removeLocator(typeLocator);
return true;
case IResourceDelta.CHANGED:
if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0
&& (sourceDelta.getFlags() & IResourceDelta.ENCODING) == 0)
return true; // skip it since it really isn't changed
if (JavaBuilder.DEBUG)
System.out.println(
"Compile this changed source file " + typeLocator); // $NON-NLS-1$
this.sourceFiles.add(new SourceFile((IFile) resource, md, true));
}
return true;
} else if (org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(resourceName)) {
// perform full build if a managed class file has been changed
if (this.makeOutputFolderConsistent) {
IPath typePath =
resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
if (this.newState.isKnownType(typePath.toString())) {
if (JavaBuilder.DEBUG)
System.out.println(
"MUST DO FULL BUILD. Found change to class file " + typePath); // $NON-NLS-1$
return false;
}
}
return true;
} else if (md.hasIndependentOutputFolder) {
if (this.javaBuilder.filterExtraResource(resource)) return true;
// copy all other resource deltas to the output folder
IPath resourcePath = resource.getFullPath().removeFirstSegments(segmentCount);
IResource outputFile = md.binaryFolder.getFile(resourcePath);
switch (sourceDelta.getKind()) {
case IResourceDelta.ADDED:
if (outputFile.exists()) {
if (JavaBuilder.DEBUG)
System.out.println("Deleting existing file " + resourcePath); // $NON-NLS-1$
outputFile.delete(IResource.FORCE, null);
}
if (JavaBuilder.DEBUG)
System.out.println("Copying added file " + resourcePath); // $NON-NLS-1$
createFolder(
resourcePath.removeLastSegments(1),
md.binaryFolder); // ensure package exists in the output folder
copyResource(resource, outputFile);
return true;
case IResourceDelta.REMOVED:
if (outputFile.exists()) {
if (JavaBuilder.DEBUG)
System.out.println("Deleting removed file " + resourcePath); // $NON-NLS-1$
outputFile.delete(IResource.FORCE, null);
}
return true;
case IResourceDelta.CHANGED:
if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0
&& (sourceDelta.getFlags() & IResourceDelta.ENCODING) == 0)
return true; // skip it since it really isn't changed
if (outputFile.exists()) {
if (JavaBuilder.DEBUG)
System.out.println("Deleting existing file " + resourcePath); // $NON-NLS-1$
outputFile.delete(IResource.FORCE, null);
}
if (JavaBuilder.DEBUG)
System.out.println("Copying changed file " + resourcePath); // $NON-NLS-1$
createFolder(
resourcePath.removeLastSegments(1),
md.binaryFolder); // ensure package exists in the output folder
copyResource(resource, outputFile);
}
return true;
}
}
return true;
}
protected boolean findSourceFiles(IResourceDelta delta) throws CoreException {
ArrayList visited =
this.makeOutputFolderConsistent ? new ArrayList(this.sourceLocations.length) : null;
for (int i = 0, l = this.sourceLocations.length; i < l; i++) {
ClasspathMultiDirectory md = this.sourceLocations[i];
if (this.makeOutputFolderConsistent
&& md.hasIndependentOutputFolder
&& !visited.contains(md.binaryFolder)) {
// even a project which acts as its own source folder can have an independent/nested output
// folder
visited.add(md.binaryFolder);
IResourceDelta binaryDelta = delta.findMember(md.binaryFolder.getProjectRelativePath());
if (binaryDelta != null) {
int segmentCount = binaryDelta.getFullPath().segmentCount();
IResourceDelta[] children = binaryDelta.getAffectedChildren();
for (int j = 0, m = children.length; j < m; j++)
if (!checkForClassFileChanges(children[j], md, segmentCount)) return false;
}
}
if (md.sourceFolder.equals(this.javaBuilder.currentProject)) {
// skip nested source & output folders when the project is a source folder
int segmentCount = delta.getFullPath().segmentCount();
IResourceDelta[] children = delta.getAffectedChildren();
for (int j = 0, m = children.length; j < m; j++)
if (!isExcludedFromProject(children[j].getFullPath()))
if (!findSourceFiles(children[j], md, segmentCount)) return false;
} else {
IResourceDelta sourceDelta = delta.findMember(md.sourceFolder.getProjectRelativePath());
if (sourceDelta != null) {
if (sourceDelta.getKind() == IResourceDelta.REMOVED) {
if (JavaBuilder.DEBUG)
System.out.println(
"ABORTING incremental build... found removed source folder"); //$NON-NLS-1$
return false; // removed source folder should not make it here, but handle anyways
// (ADDED is supported)
}
int segmentCount = sourceDelta.getFullPath().segmentCount();
IResourceDelta[] children = sourceDelta.getAffectedChildren();
try {
for (int j = 0, m = children.length; j < m; j++)
if (!findSourceFiles(children[j], md, segmentCount)) return false;
} catch (CoreException e) {
// catch the case that a package has been renamed and collides on disk with an
// as-yet-to-be-deleted package
if (e.getStatus().getCode() == IResourceStatus.CASE_VARIANT_EXISTS) {
if (JavaBuilder.DEBUG)
System.out.println(
"ABORTING incremental build... found renamed package"); //$NON-NLS-1$
return false;
}
throw e; // rethrow
}
}
}
this.notifier.checkCancel();
}
return true;
}
protected void findAffectedSourceFiles(
IResourceDelta binaryDelta, int segmentCount, StringSet structurallyChangedTypes) {
// When a package becomes a type or vice versa, expect 2 deltas,
// one on the folder & one on the class file
IResource resource = binaryDelta.getResource();
switch (resource.getType()) {
case IResource.FOLDER:
switch (binaryDelta.getKind()) {
case IResourceDelta.ADDED:
case IResourceDelta.REMOVED:
IPath packagePath = resource.getFullPath().removeFirstSegments(segmentCount);
String packageName = packagePath.toString();
if (binaryDelta.getKind() == IResourceDelta.ADDED) {
// see if any known source file is from the same package... classpath already includes
// new package
if (!this.newState.isKnownPackage(packageName)) {
if (JavaBuilder.DEBUG)
System.out.println("Found added package " + packageName); // $NON-NLS-1$
addDependentsOf(packagePath, false);
return;
}
if (JavaBuilder.DEBUG)
System.out.println(
"Skipped dependents of added package " + packageName); // $NON-NLS-1$
} else {
// see if the package still exists on the classpath
if (!this.nameEnvironment.isPackage(packageName)) {
if (JavaBuilder.DEBUG)
System.out.println("Found removed package " + packageName); // $NON-NLS-1$
addDependentsOf(packagePath, false);
return;
}
if (JavaBuilder.DEBUG)
System.out.println(
"Skipped dependents of removed package " + packageName); // $NON-NLS-1$
}
// $FALL-THROUGH$ traverse the sub-packages and .class files
case IResourceDelta.CHANGED:
IResourceDelta[] children = binaryDelta.getAffectedChildren();
for (int i = 0, l = children.length; i < l; i++)
findAffectedSourceFiles(children[i], segmentCount, structurallyChangedTypes);
}
return;
case IResource.FILE:
if (org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(resource.getName())) {
IPath typePath =
resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
switch (binaryDelta.getKind()) {
case IResourceDelta.ADDED:
case IResourceDelta.REMOVED:
if (JavaBuilder.DEBUG)
System.out.println("Found added/removed class file " + typePath); // $NON-NLS-1$
addDependentsOf(typePath, false);
return;
case IResourceDelta.CHANGED:
if ((binaryDelta.getFlags() & IResourceDelta.CONTENT) == 0)
return; // skip it since it really isn't changed
if (structurallyChangedTypes != null
&& !structurallyChangedTypes.includes(typePath.toString()))
return; // skip since it wasn't a structural change
if (JavaBuilder.DEBUG)
System.out.println("Found changed class file " + typePath); // $NON-NLS-1$
addDependentsOf(typePath, false);
}
return;
}
}
}
@Override
public boolean visit(IResourceDelta delta) throws CoreException {
if (delta == null) {
return false;
}
IFile file = getFile();
if (file == null) {
return false;
}
delta = delta.findMember(file.getFullPath());
if (delta == null) {
return false;
}
Runnable runnable = null;
switch (delta.getKind()) {
case IResourceDelta.CHANGED:
FileInfo info = (FileInfo) getElementInfo(fileEditorInput);
if (info == null || !canRefreshFromFile(info)) {
break;
}
boolean isSynchronized = computeModificationStamp(file) == info.modificationStamp;
if ((IResourceDelta.ENCODING & delta.getFlags()) != 0 && isSynchronized) {
runnable =
new SafeChange(fileEditorInput) {
@Override
protected void execute(IEditorInput input) throws Exception {
handleElementContentChanged(input);
}
};
}
if (runnable == null
&& (IResourceDelta.CONTENT & delta.getFlags()) != 0
&& !isSynchronized) {
runnable =
new SafeChange(fileEditorInput) {
@Override
protected void execute(IEditorInput input) throws Exception {
handleElementContentChanged(input);
}
};
}
break;
case IResourceDelta.REMOVED:
if ((IResourceDelta.MOVED_TO & delta.getFlags()) != 0) {
final IPath path = delta.getMovedToPath();
runnable =
new SafeChange(fileEditorInput) {
@Override
protected void execute(IEditorInput input) throws Exception {
handleElementMoved(input, path);
}
};
} else {
info = (FileInfo) getElementInfo(fileEditorInput);
if (info != null && canRefreshFromFile(info)) {
runnable =
new SafeChange(fileEditorInput) {
@Override
protected void execute(IEditorInput input) throws Exception {
handleElementDeleted(input);
}
};
}
}
break;
}
if (runnable != null) {
update(runnable);
}
return false;
}
private SimpleLookupTable findDeltas() {
this.notifier.subTask(
Messages.bind(Messages.build_readingDelta, this.currentProject.getName()));
IResourceDelta delta = getDelta(this.currentProject);
SimpleLookupTable deltas = new SimpleLookupTable(3);
if (delta != null) {
if (delta.getKind() != IResourceDelta.NO_CHANGE) {
if (DEBUG)
System.out.println(
"JavaBuilder: Found source delta for: "
+ this.currentProject.getName()); // $NON-NLS-1$
deltas.put(this.currentProject, delta);
}
} else {
if (DEBUG)
System.out.println(
"JavaBuilder: Missing delta for: " + this.currentProject.getName()); // $NON-NLS-1$
this.notifier.subTask(""); // $NON-NLS-1$
return null;
}
Object[] keyTable = this.binaryLocationsPerProject.keyTable;
Object[] valueTable = this.binaryLocationsPerProject.valueTable;
nextProject:
for (int i = 0, l = keyTable.length; i < l; i++) {
IProject p = (IProject) keyTable[i];
if (p != null && p != this.currentProject) {
State s = getLastState(p);
if (!this.lastState.wasStructurallyChanged(p, s)) { // see if we can skip its delta
if (s.wasNoopBuild())
continue nextProject; // project has no source folders and can be skipped
ClasspathLocation[] classFoldersAndJars = (ClasspathLocation[]) valueTable[i];
boolean canSkip = true;
for (int j = 0, m = classFoldersAndJars.length; j < m; j++) {
if (classFoldersAndJars[j].isOutputFolder())
classFoldersAndJars[j] =
null; // can ignore output folder since project was not structurally changed
else canSkip = false;
}
if (canSkip)
continue nextProject; // project has no structural changes in its output folders
}
this.notifier.subTask(Messages.bind(Messages.build_readingDelta, p.getName()));
delta = getDelta(p);
if (delta != null) {
if (delta.getKind() != IResourceDelta.NO_CHANGE) {
if (DEBUG)
System.out.println(
"JavaBuilder: Found binary delta for: " + p.getName()); // $NON-NLS-1$
deltas.put(p, delta);
}
} else {
if (DEBUG)
System.out.println("JavaBuilder: Missing delta for: " + p.getName()); // $NON-NLS-1$
this.notifier.subTask(""); // $NON-NLS-1$
return null;
}
}
}
this.notifier.subTask(""); // $NON-NLS-1$
return deltas;
}