/*
* Instruct the build manager that this project is involved in a cycle and
* needs to propagate structural changes to the other projects in the cycle.
*/
void mustPropagateStructuralChanges() {
LinkedHashSet cycleParticipants = new LinkedHashSet(3);
this.javaProject.updateCycleParticipants(
new ArrayList(), cycleParticipants, this.workspaceRoot, new HashSet(3), null);
IPath currentPath = this.javaProject.getPath();
Iterator i = cycleParticipants.iterator();
while (i.hasNext()) {
IPath participantPath = (IPath) i.next();
if (participantPath != currentPath) {
IProject project = this.workspaceRoot.getProject(participantPath.segment(0));
if (hasBeenBuilt(project)) {
if (DEBUG)
System.out.println(
"JavaBuilder: Requesting another build iteration since cycle participant "
+ project.getName() // $NON-NLS-1$
+ " has not yet seen some structural changes"); //$NON-NLS-1$
needRebuild();
return;
}
}
}
}
private boolean hasJavaBuilder(IProject project) throws CoreException {
ICommand[] buildCommands = project.getDescription().getBuildSpec();
for (int i = 0, l = buildCommands.length; i < l; i++)
if (buildCommands[i].getBuilderName().equals(JavaCore.BUILDER_ID)) return true;
return false;
}
private boolean isWorthBuilding() throws CoreException {
boolean abortBuilds =
JavaCore.ABORT.equals(
this.javaProject.getOption(JavaCore.CORE_JAVA_BUILD_INVALID_CLASSPATH, true));
if (!abortBuilds) {
if (DEBUG) System.out.println("JavaBuilder: Ignoring invalid classpath"); // $NON-NLS-1$
return true;
}
// Abort build only if there are classpath errors
if (isClasspathBroken(this.javaProject, true)) {
if (DEBUG)
System.out.println(
"JavaBuilder: Aborted build because project has classpath errors (incomplete or involved in cycle)"); //$NON-NLS-1$
removeProblemsAndTasksFor(this.currentProject); // remove all compilation problems
IMarker marker = this.currentProject.createMarker(IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER);
marker.setAttributes(
new String[] {
IMarker.MESSAGE, IMarker.SEVERITY, IJavaModelMarker.CATEGORY_ID, IMarker.SOURCE_ID
},
new Object[] {
Messages.build_abortDueToClasspathProblems,
new Integer(IMarker.SEVERITY_ERROR),
new Integer(CategorizedProblem.CAT_BUILDPATH),
JavaBuilder.SOURCE_ID
});
return false;
}
if (JavaCore.WARNING.equals(
this.javaProject.getOption(JavaCore.CORE_INCOMPLETE_CLASSPATH, true))) return true;
// make sure all prereq projects have valid build states... only when aborting builds since
// projects in cycles do not have build states
// except for projects involved in a 'warning' cycle (see below)
IProject[] requiredProjects = getRequiredProjects(false);
for (int i = 0, l = requiredProjects.length; i < l; i++) {
IProject p = requiredProjects[i];
if (getLastState(p) == null) {
// The prereq project has no build state: if this prereq project has a 'warning' cycle
// marker then allow build (see bug id 23357)
JavaProject prereq = (JavaProject) JavaCore.create(p);
if (prereq.hasCycleMarker()
&& JavaCore.WARNING.equals(
this.javaProject.getOption(JavaCore.CORE_CIRCULAR_CLASSPATH, true))) {
if (DEBUG)
System.out.println(
"JavaBuilder: Continued to build even though prereq project "
+ p.getName() // $NON-NLS-1$
+ " was not built since its part of a cycle"); //$NON-NLS-1$
continue;
}
if (!hasJavaBuilder(p)) {
if (DEBUG)
System.out.println(
"JavaBuilder: Continued to build even though prereq project "
+ p.getName() // $NON-NLS-1$
+ " is not built by JavaBuilder"); //$NON-NLS-1$
continue;
}
if (DEBUG)
System.out.println(
"JavaBuilder: Aborted build because prereq project "
+ p.getName() // $NON-NLS-1$
+ " was not built"); //$NON-NLS-1$
removeProblemsAndTasksFor(
this.currentProject); // make this the only problem for this project
IMarker marker =
this.currentProject.createMarker(IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER);
marker.setAttributes(
new String[] {
IMarker.MESSAGE, IMarker.SEVERITY, IJavaModelMarker.CATEGORY_ID, IMarker.SOURCE_ID
},
new Object[] {
isClasspathBroken(prereq, true)
? Messages.bind(Messages.build_prereqProjectHasClasspathProblems, p.getName())
: Messages.bind(Messages.build_prereqProjectMustBeRebuilt, p.getName()),
new Integer(IMarker.SEVERITY_ERROR),
new Integer(CategorizedProblem.CAT_BUILDPATH),
JavaBuilder.SOURCE_ID
});
return false;
}
}
return true;
}
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;
}