--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.core;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+import net.sourceforge.phpdt.core.ICompilationUnit;
+import net.sourceforge.phpdt.core.IJavaElement;
+import net.sourceforge.phpdt.core.IJavaElementDelta;
+import net.sourceforge.phpdt.core.IJavaModel;
+import net.sourceforge.phpdt.core.IJavaModelStatus;
+import net.sourceforge.phpdt.core.IJavaModelStatusConstants;
+import net.sourceforge.phpdt.core.IPackageFragment;
+import net.sourceforge.phpdt.core.IWorkingCopy;
+import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.internal.core.util.PerThreadObject;
+
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IResourceStatus;
+import org.eclipse.core.resources.IWorkspace;
+import org.eclipse.core.resources.IWorkspaceRunnable;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.SubProgressMonitor;
+
+
+/**
+ * Defines behavior common to all Java Model operations
+ */
+public abstract class JavaModelOperation implements IWorkspaceRunnable, IProgressMonitor {
+ protected interface IPostAction {
+ /*
+ * Returns the id of this action.
+ * @see JavaModelOperation#postAction
+ */
+ String getID();
+ /*
+ * Run this action.
+ */
+ void run() throws JavaModelException;
+ }
+ /*
+ * Constants controlling the insertion mode of an action.
+ * @see JavaModelOperation#postAction
+ */
+ protected static final int APPEND = 1; // insert at the end
+ protected static final int REMOVEALL_APPEND = 2; // remove all existing ones with same ID, and add new one at the end
+ protected static final int KEEP_EXISTING = 3; // do not insert if already existing with same ID
+
+ /*
+ * Whether tracing post actions is enabled.
+ */
+ protected static boolean POST_ACTION_VERBOSE;
+
+ /*
+ * A list of IPostActions.
+ */
+ protected IPostAction[] actions;
+ protected int actionsStart = 0;
+ protected int actionsEnd = -1;
+ /*
+ * A HashMap of attributes that can be used by operations
+ */
+ protected HashMap attributes;
+
+ public static final String HAS_MODIFIED_RESOURCE_ATTR = "hasModifiedResource"; //$NON-NLS-1$
+ public static final String TRUE = "true"; //$NON-NLS-1$
+ //public static final String FALSE = "false"; //$NON-NLS-1$
+
+ /**
+ * The elements this operation operates on,
+ * or <code>null</code> if this operation
+ * does not operate on specific elements.
+ */
+ protected IJavaElement[] fElementsToProcess;
+ /**
+ * The parent elements this operation operates with
+ * or <code>null</code> if this operation
+ * does not operate with specific parent elements.
+ */
+ protected IJavaElement[] fParentElements;
+ /**
+ * An empty collection of <code>IJavaElement</code>s - the common
+ * empty result if no elements are created, or if this
+ * operation is not actually executed.
+ */
+ protected static IJavaElement[] fgEmptyResult= new IJavaElement[] {};
+
+
+ /**
+ * The elements created by this operation - empty
+ * until the operation actually creates elements.
+ */
+ protected IJavaElement[] fResultElements= fgEmptyResult;
+
+ /**
+ * The progress monitor passed into this operation
+ */
+ protected IProgressMonitor fMonitor= null;
+ /**
+ * A flag indicating whether this operation is nested.
+ */
+ protected boolean fNested = false;
+ /**
+ * Conflict resolution policy - by default do not force (fail on a conflict).
+ */
+ protected boolean fForce= false;
+
+ /*
+ * A per thread stack of java model operations (PerThreadObject of ArrayList).
+ */
+ protected static PerThreadObject operationStacks = new PerThreadObject();
+ protected JavaModelOperation() {
+ }
+ /**
+ * A common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement[] elements) {
+ fElementsToProcess = elements;
+ }
+ /**
+ * Common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement[] elementsToProcess, IJavaElement[] parentElements) {
+ fElementsToProcess = elementsToProcess;
+ fParentElements= parentElements;
+ }
+ /**
+ * A common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement[] elementsToProcess, IJavaElement[] parentElements, boolean force) {
+ fElementsToProcess = elementsToProcess;
+ fParentElements= parentElements;
+ fForce= force;
+ }
+ /**
+ * A common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement[] elements, boolean force) {
+ fElementsToProcess = elements;
+ fForce= force;
+ }
+
+ /**
+ * Common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement element) {
+ fElementsToProcess = new IJavaElement[]{element};
+ }
+ /**
+ * A common constructor for all Java Model operations.
+ */
+ protected JavaModelOperation(IJavaElement element, boolean force) {
+ fElementsToProcess = new IJavaElement[]{element};
+ fForce= force;
+ }
+
+ /*
+ * Registers the given action at the end of the list of actions to run.
+ */
+ protected void addAction(IPostAction action) {
+ int length = this.actions.length;
+ if (length == ++this.actionsEnd) {
+ System.arraycopy(this.actions, 0, this.actions = new IPostAction[length*2], 0, length);
+ }
+ this.actions[this.actionsEnd] = action;
+ }
+ /*
+ * Registers the given delta with the Java Model Manager.
+ */
+ protected void addDelta(IJavaElementDelta delta) {
+ JavaModelManager.getJavaModelManager().registerJavaModelDelta(delta);
+ }
+ /*
+ * Registers the given reconcile delta with the Java Model Manager.
+ */
+ protected void addReconcileDelta(IWorkingCopy workingCopy, IJavaElementDelta delta) {
+ HashMap reconcileDeltas = JavaModelManager.getJavaModelManager().reconcileDeltas;
+ JavaElementDelta previousDelta = (JavaElementDelta)reconcileDeltas.get(workingCopy);
+ if (previousDelta != null) {
+ IJavaElementDelta[] children = delta.getAffectedChildren();
+ for (int i = 0, length = children.length; i < length; i++) {
+ JavaElementDelta child = (JavaElementDelta)children[i];
+ previousDelta.insertDeltaTree(child.getElement(), child);
+ }
+ } else {
+ reconcileDeltas.put(workingCopy, delta);
+ }
+ }
+ /*
+ * Deregister the reconcile delta for the given working copy
+ */
+ protected void removeReconcileDelta(IWorkingCopy workingCopy) {
+ JavaModelManager.getJavaModelManager().reconcileDeltas.remove(workingCopy);
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public void beginTask(String name, int totalWork) {
+ if (fMonitor != null) {
+ fMonitor.beginTask(name, totalWork);
+ }
+ }
+ /**
+ * Checks with the progress monitor to see whether this operation
+ * should be canceled. An operation should regularly call this method
+ * during its operation so that the user can cancel it.
+ *
+ * @exception OperationCanceledException if cancelling the operation has been requested
+ * @see IProgressMonitor#isCanceled
+ */
+ protected void checkCanceled() {
+ if (isCanceled()) {
+ throw new OperationCanceledException(Util.bind("operation.cancelled")); //$NON-NLS-1$
+ }
+ }
+ /**
+ * Common code used to verify the elements this operation is processing.
+ * @see JavaModelOperation#verify()
+ */
+ protected IJavaModelStatus commonVerify() {
+ if (fElementsToProcess == null || fElementsToProcess.length == 0) {
+ return new JavaModelStatus(IJavaModelStatusConstants.NO_ELEMENTS_TO_PROCESS);
+ }
+ for (int i = 0; i < fElementsToProcess.length; i++) {
+ if (fElementsToProcess[i] == null) {
+ return new JavaModelStatus(IJavaModelStatusConstants.NO_ELEMENTS_TO_PROCESS);
+ }
+ }
+ return JavaModelStatus.VERIFIED_OK;
+ }
+ /**
+ * Convenience method to copy resources
+ */
+ protected void copyResources(IResource[] resources, IPath destinationPath) throws JavaModelException {
+ IProgressMonitor subProgressMonitor = getSubProgressMonitor(resources.length);
+ IWorkspace workspace = resources[0].getWorkspace();
+ try {
+ workspace.copy(resources, destinationPath, false, subProgressMonitor);
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Convenience method to create a file
+ */
+ protected void createFile(IContainer folder, String name, InputStream contents, boolean force) throws JavaModelException {
+ IFile file= folder.getFile(new Path(name));
+ try {
+ file.create(
+ contents,
+ force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
+ getSubProgressMonitor(1));
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Convenience method to create a folder
+ */
+ protected void createFolder(IContainer parentFolder, String name, boolean force) throws JavaModelException {
+ IFolder folder= parentFolder.getFolder(new Path(name));
+ try {
+ // we should use true to create the file locally. Only VCM should use tru/false
+ folder.create(
+ force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
+ true, // local
+ getSubProgressMonitor(1));
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Convenience method to delete an empty package fragment
+ */
+ protected void deleteEmptyPackageFragment(
+ IPackageFragment fragment,
+ boolean force,
+ IResource rootResource)
+ throws JavaModelException {
+
+ IContainer resource = (IContainer) fragment.getResource();
+
+ try {
+ resource.delete(
+ force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
+ getSubProgressMonitor(1));
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ while (resource instanceof IFolder) {
+ // deleting a package: delete the parent if it is empty (eg. deleting x.y where folder x doesn't have resources but y)
+ // without deleting the package fragment root
+ resource = resource.getParent();
+ if (!resource.equals(rootResource) && resource.members().length == 0) {
+ resource.delete(
+ force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
+ getSubProgressMonitor(1));
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ }
+ }
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Convenience method to delete a resource
+ */
+ protected void deleteResource(IResource resource,int flags) throws JavaModelException {
+ try {
+ resource.delete(flags, getSubProgressMonitor(1));
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Convenience method to delete resources
+ */
+ protected void deleteResources(IResource[] resources, boolean force) throws JavaModelException {
+ if (resources == null || resources.length == 0) return;
+ IProgressMonitor subProgressMonitor = getSubProgressMonitor(resources.length);
+ IWorkspace workspace = resources[0].getWorkspace();
+ try {
+ workspace.delete(
+ resources,
+ force ? IResource.FORCE | IResource.KEEP_HISTORY : IResource.KEEP_HISTORY,
+ subProgressMonitor);
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public void done() {
+ if (fMonitor != null) {
+ fMonitor.done();
+ }
+ }
+ /*
+ * Returns whether the given path is equals to one of the given other paths.
+ */
+ protected boolean equalsOneOf(IPath path, IPath[] otherPaths) {
+ for (int i = 0, length = otherPaths.length; i < length; i++) {
+ if (path.equals(otherPaths[i])) {
+ return true;
+ }
+ }
+ return false;
+ }
+ /**
+ * Verifies the operation can proceed and executes the operation.
+ * Subclasses should override <code>#verify</code> and
+ * <code>executeOperation</code> to implement the specific operation behavior.
+ *
+ * @exception JavaModelException The operation has failed.
+ */
+ protected void execute() throws JavaModelException {
+ IJavaModelStatus status= verify();
+ if (status.isOK()) {
+ // if first time here, computes the root infos before executing the operation
+ DeltaProcessor deltaProcessor = JavaModelManager.getJavaModelManager().deltaProcessor;
+ if (deltaProcessor.roots == null) {
+// TODO khartlage temp-del
+// deltaProcessor.initializeRoots();
+ }
+
+ executeOperation();
+ } else {
+ throw new JavaModelException(status);
+ }
+ }
+ /**
+ * Convenience method to run an operation within this operation
+ */
+ public void executeNestedOperation(JavaModelOperation operation, int subWorkAmount) throws JavaModelException {
+ IProgressMonitor subProgressMonitor = getSubProgressMonitor(subWorkAmount);
+ // fix for 1FW7IKC, part (1)
+ try {
+ operation.setNested(true);
+ operation.run(subProgressMonitor);
+ } catch (CoreException ce) {
+ if (ce instanceof JavaModelException) {
+ throw (JavaModelException)ce;
+ } else {
+ // translate the core exception to a java model exception
+ if (ce.getStatus().getCode() == IResourceStatus.OPERATION_FAILED) {
+ Throwable e = ce.getStatus().getException();
+ if (e instanceof JavaModelException) {
+ throw (JavaModelException) e;
+ }
+ }
+ throw new JavaModelException(ce);
+ }
+ }
+ }
+ /**
+ * Performs the operation specific behavior. Subclasses must override.
+ */
+ protected abstract void executeOperation() throws JavaModelException;
+ /*
+ * Returns the attribute registered at the given key with the top level operation.
+ * Returns null if no such attribute is found.
+ */
+ protected Object getAttribute(Object key) {
+ ArrayList stack = this.getCurrentOperationStack();
+ if (stack.size() == 0) return null;
+ JavaModelOperation topLevelOp = (JavaModelOperation)stack.get(0);
+ if (topLevelOp.attributes == null) {
+ return null;
+ } else {
+ return topLevelOp.attributes.get(key);
+ }
+ }
+ /**
+ * Returns the compilation unit the given element is contained in,
+ * or the element itself (if it is a compilation unit),
+ * otherwise <code>null</code>.
+ */
+ protected ICompilationUnit getCompilationUnitFor(IJavaElement element) {
+
+ return ((JavaElement)element).getCompilationUnit();
+ }
+ /*
+ * Returns the stack of operations running in the current thread.
+ * Returns an empty stack if no operations are currently running in this thread.
+ */
+ protected ArrayList getCurrentOperationStack() {
+ ArrayList stack = (ArrayList)operationStacks.getCurrent();
+ if (stack == null) {
+ stack = new ArrayList();
+ operationStacks.setCurrent(stack);
+ }
+ return stack;
+ }
+ /**
+ * Returns the elements to which this operation applies,
+ * or <code>null</code> if not applicable.
+ */
+ protected IJavaElement[] getElementsToProcess() {
+ return fElementsToProcess;
+ }
+ /**
+ * Returns the element to which this operation applies,
+ * or <code>null</code> if not applicable.
+ */
+ protected IJavaElement getElementToProcess() {
+ if (fElementsToProcess == null || fElementsToProcess.length == 0) {
+ return null;
+ }
+ return fElementsToProcess[0];
+ }
+ /**
+ * Returns the Java Model this operation is operating in.
+ */
+ public IJavaModel getJavaModel() {
+ if (fElementsToProcess == null || fElementsToProcess.length == 0) {
+ return getParentElement().getJavaModel();
+ } else {
+ return fElementsToProcess[0].getJavaModel();
+ }
+ }
+// protected IPath[] getNestedFolders(IPackageFragmentRoot root) throws JavaModelException {
+// IPath rootPath = root.getPath();
+// IClasspathEntry[] classpath = root.getJavaProject().getRawClasspath();
+// int length = classpath.length;
+// IPath[] result = new IPath[length];
+// int index = 0;
+// for (int i = 0; i < length; i++) {
+// IPath path = classpath[i].getPath();
+// if (rootPath.isPrefixOf(path) && !rootPath.equals(path)) {
+// result[index++] = path;
+// }
+// }
+// if (index < length) {
+// System.arraycopy(result, 0, result = new IPath[index], 0, index);
+// }
+// return result;
+// }
+ /**
+ * Returns the parent element to which this operation applies,
+ * or <code>null</code> if not applicable.
+ */
+ protected IJavaElement getParentElement() {
+ if (fParentElements == null || fParentElements.length == 0) {
+ return null;
+ }
+ return fParentElements[0];
+ }
+ /**
+ * Returns the parent elements to which this operation applies,
+ * or <code>null</code> if not applicable.
+ */
+ protected IJavaElement[] getParentElements() {
+ return fParentElements;
+ }
+ /**
+ * Returns the elements created by this operation.
+ */
+ public IJavaElement[] getResultElements() {
+ return fResultElements;
+ }
+ /**
+ * Creates and returns a subprogress monitor if appropriate.
+ */
+ protected IProgressMonitor getSubProgressMonitor(int workAmount) {
+ IProgressMonitor sub = null;
+ if (fMonitor != null) {
+ sub = new SubProgressMonitor(fMonitor, workAmount, SubProgressMonitor.PREPEND_MAIN_LABEL_TO_SUBTASK);
+ }
+ return sub;
+ }
+
+ /**
+ * Returns whether this operation has performed any resource modifications.
+ * Returns false if this operation has not been executed yet.
+ */
+ public boolean hasModifiedResource() {
+ return !this.isReadOnly() && this.getAttribute(HAS_MODIFIED_RESOURCE_ATTR) == TRUE;
+ }
+ public void internalWorked(double work) {
+ if (fMonitor != null) {
+ fMonitor.internalWorked(work);
+ }
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public boolean isCanceled() {
+ if (fMonitor != null) {
+ return fMonitor.isCanceled();
+ }
+ return false;
+ }
+ /**
+ * Returns <code>true</code> if this operation performs no resource modifications,
+ * otherwise <code>false</code>. Subclasses must override.
+ */
+ public boolean isReadOnly() {
+ return false;
+ }
+ /*
+ * Returns whether this operation is the first operation to run in the current thread.
+ */
+ protected boolean isTopLevelOperation() {
+ ArrayList stack;
+ return
+ (stack = this.getCurrentOperationStack()).size() > 0
+ && stack.get(0) == this;
+ }
+ /*
+ * Returns the index of the first registered action with the given id, starting from a given position.
+ * Returns -1 if not found.
+ */
+ protected int firstActionWithID(String id, int start) {
+ for (int i = start; i <= this.actionsEnd; i++) {
+ if (this.actions[i].getID().equals(id)) {
+ return i;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Convenience method to move resources
+ */
+ protected void moveResources(IResource[] resources, IPath destinationPath) throws JavaModelException {
+ IProgressMonitor subProgressMonitor = null;
+ if (fMonitor != null) {
+ subProgressMonitor = new SubProgressMonitor(fMonitor, resources.length, SubProgressMonitor.PREPEND_MAIN_LABEL_TO_SUBTASK);
+ }
+ IWorkspace workspace = resources[0].getWorkspace();
+ try {
+ workspace.move(resources, destinationPath, false, subProgressMonitor);
+ this.setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
+ } catch (CoreException e) {
+ throw new JavaModelException(e);
+ }
+ }
+ /**
+ * Creates and returns a new <code>IJavaElementDelta</code>
+ * on the Java Model.
+ */
+ public JavaElementDelta newJavaElementDelta() {
+ return new JavaElementDelta(getJavaModel());
+ }
+ /*
+ * Removes the last pushed operation from the stack of running operations.
+ * Returns the poped operation or null if the stack was empty.
+ */
+ protected JavaModelOperation popOperation() {
+ ArrayList stack = getCurrentOperationStack();
+ int size = stack.size();
+ if (size > 0) {
+ if (size == 1) { // top level operation
+ operationStacks.setCurrent(null); // release reference (see http://bugs.eclipse.org/bugs/show_bug.cgi?id=33927)
+ }
+ return (JavaModelOperation)stack.remove(size-1);
+ } else {
+ return null;
+ }
+ }
+ /*
+ * Registers the given action to be run when the outer most java model operation has finished.
+ * The insertion mode controls whether:
+ * - the action should discard all existing actions with the same id, and be queued at the end (REMOVEALL_APPEND),
+ * - the action should be ignored if there is already an action with the same id (KEEP_EXISTING),
+ * - the action should be queued at the end without looking at existing actions (APPEND)
+ */
+ protected void postAction(IPostAction action, int insertionMode) {
+ if (POST_ACTION_VERBOSE) {
+ System.out.print("(" + Thread.currentThread() + ") [JavaModelOperation.postAction(IPostAction, int)] Posting action " + action.getID()); //$NON-NLS-1$ //$NON-NLS-2$
+ switch(insertionMode) {
+ case REMOVEALL_APPEND:
+ System.out.println(" (REMOVEALL_APPEND)"); //$NON-NLS-1$
+ break;
+ case KEEP_EXISTING:
+ System.out.println(" (KEEP_EXISTING)"); //$NON-NLS-1$
+ break;
+ case APPEND:
+ System.out.println(" (APPEND)"); //$NON-NLS-1$
+ break;
+ }
+ }
+
+ JavaModelOperation topLevelOp = (JavaModelOperation)getCurrentOperationStack().get(0);
+ IPostAction[] postActions = topLevelOp.actions;
+ if (postActions == null) {
+ topLevelOp.actions = postActions = new IPostAction[1];
+ postActions[0] = action;
+ topLevelOp.actionsEnd = 0;
+ } else {
+ String id = action.getID();
+ switch (insertionMode) {
+ case REMOVEALL_APPEND :
+ int index = this.actionsStart-1;
+ while ((index = topLevelOp.firstActionWithID(id, index+1)) >= 0) {
+ // remove action[index]
+ System.arraycopy(postActions, index+1, postActions, index, topLevelOp.actionsEnd - index);
+ postActions[topLevelOp.actionsEnd--] = null;
+ }
+ topLevelOp.addAction(action);
+ break;
+ case KEEP_EXISTING:
+ if (topLevelOp.firstActionWithID(id, 0) < 0) {
+ topLevelOp.addAction(action);
+ }
+ break;
+ case APPEND:
+ topLevelOp.addAction(action);
+ break;
+ }
+ }
+ }
+ /*
+ * Returns whether the given path is the prefix of one of the given other paths.
+ */
+ protected boolean prefixesOneOf(IPath path, IPath[] otherPaths) {
+ for (int i = 0, length = otherPaths.length; i < length; i++) {
+ if (path.isPrefixOf(otherPaths[i])) {
+ return true;
+ }
+ }
+ return false;
+ }
+ /*
+ * Pushes the given operation on the stack of operations currently running in this thread.
+ */
+ protected void pushOperation(JavaModelOperation operation) {
+ getCurrentOperationStack().add(operation);
+ }
+
+ /**
+ * Main entry point for Java Model operations. Executes this operation
+ * and registers any deltas created.
+ *
+ * @see IWorkspaceRunnable
+ * @exception CoreException if the operation fails
+ */
+ public void run(IProgressMonitor monitor) throws CoreException {
+ JavaModelManager manager = JavaModelManager.getJavaModelManager();
+ int previousDeltaCount = manager.javaModelDeltas.size();
+ try {
+ fMonitor = monitor;
+ pushOperation(this);
+ try {
+ this.execute();
+ } finally {
+ if (this.isTopLevelOperation()) {
+ this.runPostActions();
+ }
+ }
+ } finally {
+// TODO khartlage temp-del
+// try {
+// // update JavaModel using deltas that were recorded during this operation
+// for (int i = previousDeltaCount, size = manager.javaModelDeltas.size(); i < size; i++) {
+// manager.updateJavaModel((IJavaElementDelta)manager.javaModelDeltas.get(i));
+// }
+//
+// // fire only iff:
+// // - the operation is a top level operation
+// // - the operation did produce some delta(s)
+// // - but the operation has not modified any resource
+// if (this.isTopLevelOperation()) {
+// if ((manager.javaModelDeltas.size() > previousDeltaCount || !manager.reconcileDeltas.isEmpty())
+// && !this.hasModifiedResource()) {
+// manager.fire(null, JavaModelManager.DEFAULT_CHANGE_EVENT);
+// } // else deltas are fired while processing the resource delta
+// }
+// } finally {
+// popOperation();
+// }
+ }
+ }
+ protected void runPostActions() throws JavaModelException {
+ while (this.actionsStart <= this.actionsEnd) {
+ IPostAction postAction = this.actions[this.actionsStart++];
+ if (POST_ACTION_VERBOSE) {
+ System.out.println("(" + Thread.currentThread() + ") [JavaModelOperation.runPostActions()] Running action " + postAction.getID()); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ postAction.run();
+ }
+ }
+ /*
+ * Registers the given attribute at the given key with the top level operation.
+ */
+ protected void setAttribute(Object key, Object attribute) {
+ JavaModelOperation topLevelOp = (JavaModelOperation)this.getCurrentOperationStack().get(0);
+ if (topLevelOp.attributes == null) {
+ topLevelOp.attributes = new HashMap();
+ }
+ topLevelOp.attributes.put(key, attribute);
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public void setCanceled(boolean b) {
+ if (fMonitor != null) {
+ fMonitor.setCanceled(b);
+ }
+ }
+ /**
+ * Sets whether this operation is nested or not.
+ * @see CreateElementInCUOperation#checkCanceled
+ */
+ protected void setNested(boolean nested) {
+ fNested = nested;
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public void setTaskName(String name) {
+ if (fMonitor != null) {
+ fMonitor.setTaskName(name);
+ }
+ }
+ /**
+ * @see IProgressMonitor
+ */
+ public void subTask(String name) {
+ if (fMonitor != null) {
+ fMonitor.subTask(name);
+ }
+ }
+ /**
+ * Returns a status indicating if there is any known reason
+ * this operation will fail. Operations are verified before they
+ * are run.
+ *
+ * Subclasses must override if they have any conditions to verify
+ * before this operation executes.
+ *
+ * @see IJavaModelStatus
+ */
+ protected IJavaModelStatus verify() {
+ return commonVerify();
+ }
+
+ /**
+ * @see IProgressMonitor
+ */
+ public void worked(int work) {
+ if (fMonitor != null) {
+ fMonitor.worked(work);
+ checkCanceled();
+ }
+ }
+}
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