diff options
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/resource/ClasspathEntryLifecycleListener.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/resource/ClasspathEntryLifecycleListener.java | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/resource/ClasspathEntryLifecycleListener.java b/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/resource/ClasspathEntryLifecycleListener.java deleted file mode 100644 index 80e8c9a90..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/resource/ClasspathEntryLifecycleListener.java +++ /dev/null @@ -1,213 +0,0 @@ -package org.eclipse.jst.jsf.common.internal.resource; - -import org.eclipse.core.resources.IProject; -import org.eclipse.core.resources.IResource; -import org.eclipse.core.resources.IResourceDelta; -import org.eclipse.core.resources.IResourceDeltaVisitor; -import org.eclipse.core.runtime.CoreException; -import org.eclipse.jdt.core.ElementChangedEvent; -import org.eclipse.jdt.core.IElementChangedListener; -import org.eclipse.jdt.core.IJavaElement; -import org.eclipse.jdt.core.IJavaElementDelta; -import org.eclipse.jdt.core.IJavaProject; -import org.eclipse.jst.jsf.common.JSFCommonPlugin; -import org.eclipse.jst.jsf.common.internal.resource.IClasspathLifecycleListener.ClasspathLifecycleEvent; - -/** - * @author cbateman - */ -public class ClasspathEntryLifecycleListener - extends - AbstractLifecycleListener<IClasspathLifecycleListener.ClasspathLifecycleEvent, IClasspathLifecycleListener, IProject> - implements IElementChangedListener -{ - private final JavaCoreMediator _mediator; - - /** - * Initialize an inactive lifecycle listener. A classpath listener will not - * be installed by this constructor. The object created using this - * constructor will not fire any events until addClasspathEntry is called at - * least once to add a target resource - * - * @param mediator - * the mediator to use to access JavaCore operations - * @throws NullPointerException - * if mediator is null. - */ - public ClasspathEntryLifecycleListener(final JavaCoreMediator mediator) - { - if (mediator == null) - { - throw new NullPointerException(CANNOT_ADD_NULL_RESOURCE); - } - _mediator = mediator; - } - - /** - * Create a new lifecycle listener for the res - * - * @param entry - * @param mediator - * the workspace to listen to for changes. - * @throws NullPointerException - * if res or workspace is null. - */ - public ClasspathEntryLifecycleListener(final IProject entry, - final JavaCoreMediator mediator) - { - this(mediator); - if (entry == null) - { - throw new NullPointerException(CANNOT_ADD_NULL_RESOURCE); - } - addLifecycleObject(entry); - } - - public void elementChanged(final ElementChangedEvent event) - { - // we are only interested in package fragment roots that are listening - // for - if (event.getType() == ElementChangedEvent.POST_CHANGE) - { - handlePostChangeEvent(event); - } - } - - private void handlePostChangeEvent(final ElementChangedEvent event) - { - final IJavaElementDelta delta = event.getDelta(); - new DeltaAcceptor().accept(new DeltaAcceptor.DeltaVisitor() - { - public void visit(final IJavaElementDelta visitDelta) - { - // we are only interested in package_fragment_root's - final IJavaElement element = visitDelta.getElement(); - // only interested if a project in our entries list owns the - // element. - final IJavaProject javaProject = element.getJavaProject(); - if (javaProject == null - || !getLifecycleObjects().contains( - javaProject.getProject())) - { - return; - } - if (element.getElementType() == IJavaElement.PACKAGE_FRAGMENT_ROOT) - { - handlePackageFragmentRoot(visitDelta); - } else if (element.getElementType() == IJavaElement.JAVA_PROJECT - && visitDelta.getResourceDeltas() != null) - { - handleProject(visitDelta); - } - // need to test the flags only for package fragment roots - } - - private void handleProject(final IJavaElementDelta visitDelta) - { - for (final IResourceDelta resDelta : visitDelta - .getResourceDeltas()) - { - try - { - resDelta.accept(new IResourceDeltaVisitor() - { - public boolean visit(final IResourceDelta resDelta2) - throws CoreException - { - if (resDelta2.getKind() == IResourceDelta.REMOVED - && resDelta2.getResource().getType() == IResource.FILE - && "jar".equals(resDelta2.getResource().getFileExtension())) //$NON-NLS-1$ - { - fireLifecycleEvent(new ClasspathLifecycleEvent( - ClasspathEntryLifecycleListener.this, - visitDelta.getElement(), - ClasspathLifecycleEvent.Type.REMOVED_DELTA, - resDelta2.getResource())); - } - return true; - } - }); - } catch (final CoreException e) - { - JSFCommonPlugin.log(e); - } - } - } - - private void handlePackageFragmentRoot( - final IJavaElementDelta visitDelta) - { - final int flags = visitDelta.getFlags(); - switch (visitDelta.getKind()) - { - case IJavaElementDelta.ADDED: - { - fireLifecycleEvent(new ClasspathLifecycleEvent( - ClasspathEntryLifecycleListener.this, - visitDelta.getElement(), - ClasspathLifecycleEvent.Type.ADDED)); - } - break; - case IJavaElementDelta.REMOVED: - { - fireLifecycleEvent(new ClasspathLifecycleEvent( - ClasspathEntryLifecycleListener.this, - visitDelta.getElement(), - ClasspathLifecycleEvent.Type.REMOVED)); - } - break; - case IJavaElementDelta.CHANGED: - if ((flags & IJavaElementDelta.F_ADDED_TO_CLASSPATH) != 0) - { - fireLifecycleEvent(new ClasspathLifecycleEvent( - ClasspathEntryLifecycleListener.this, - visitDelta.getElement(), - ClasspathLifecycleEvent.Type.ADDED)); - } else if ((flags & IJavaElementDelta.F_REMOVED_FROM_CLASSPATH) != 0) - { - fireLifecycleEvent(new ClasspathLifecycleEvent( - ClasspathEntryLifecycleListener.this, - visitDelta.getElement(), - ClasspathLifecycleEvent.Type.REMOVED)); - } else if ((flags & IJavaElementDelta.F_REORDER) != 0) - { - // TODO: how important is the case of a classpath - // reordering? - } - break; - } - } - }, delta); - } - - @Override - protected void addSystemChangeListener() - { - _mediator.addElementChangedListener(this); - } - - @Override - protected void removeSystemChangeListener() - { - _mediator.removeElementChangeListener(this); - } - - private static class DeltaAcceptor - { - public interface DeltaVisitor - { - public void visit(final IJavaElementDelta delta); - } - - public void accept(final DeltaVisitor visitor, - final IJavaElementDelta delta) - { - visitor.visit(delta); - for (final IJavaElementDelta childDelta : delta - .getAffectedChildren()) - { - accept(visitor, childDelta); - } - } - } -} |