core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/internal/ui/wizards/buildpath/BuildPathSupport.java - dltk/org.eclipse.dltk.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *

  *******************************************************************************/
 package org.eclipse.dltk.internal.ui.wizards.buildpath;

 import java.util.ArrayList;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.dltk.core.BuildpathContainerInitializer;
 import org.eclipse.dltk.core.DLTKCore;
 import org.eclipse.dltk.core.IBuildpathContainer;
 import org.eclipse.dltk.core.IBuildpathEntry;
 import org.eclipse.dltk.core.IBuiltinModuleProvider;
 import org.eclipse.dltk.core.IScriptProject;
 import org.eclipse.dltk.core.ModelException;
 import org.eclipse.dltk.internal.ui.wizards.NewWizardMessages;
 import org.eclipse.dltk.ui.DLTKUIPlugin;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.swt.widgets.Shell;


 /**
  *
  */
 public class BuildPathSupport {

 	public static final String InterpreterEnvironment_PREF_PAGE_ID= "org.eclipse.dltk.debug.ui.preferences.InterpreterPreferencePage"; //$NON-NLS-1$


 	private BuildPathSupport() {
 		super();
 	}

 	private static class UpdatedBuildpathContainer implements IBuildpathContainer {

 		private IBuildpathEntry[] fNewEntries;
 		private IBuildpathContainer fOriginal;

 		public UpdatedBuildpathContainer(IBuildpathContainer original, IBuildpathEntry[] newEntries) {
 			fNewEntries= newEntries;
 			fOriginal= original;
 		}


 		public IBuildpathEntry[] getBuildpathEntries(IScriptProject project) {
 			return fNewEntries;
 		}

 		public String getDescription(IScriptProject project) {
 			return fOriginal.getDescription(project);
 		}

 		public int getKind() {
 			return fOriginal.getKind();
 		}

 		public IPath getPath() {
 			return fOriginal.getPath();
 		}

 		public IBuiltinModuleProvider getBuiltinProvider(IScriptProject project) {
 			return fOriginal.getBuiltinProvider(project);
 		}
 	}

 	/**
 	 * Apply a modified buildpath entry to the buildpath. The buildpath entry can also be from a buildpath container.
 	 * @param shell If not null and the entry could not be found on the projects buildpath, a dialog will ask to put the entry on the buildpath
 	 * @param newEntry The modified entry. The entry's kind or path must be unchanged.
 	 * @param changedAttributes The attibutes that have changed. See {@link BPListElement} for constants values.
 	 * @param jproject Project where the entry belongs to
 	 * @param containerPath The path of the entry's parent container or <code>null</code> if the entry is not in a container
 	 * @param monitor The progress monitor to use
 	 * @throws CoreException
 	 */
 	public static void modifyBuildpathEntry(Shell shell, IBuildpathEntry newEntry, String[] changedAttributes, IScriptProject jproject, IPath containerPath, IProgressMonitor monitor) throws CoreException {
 		if (containerPath != null) {
 			updateContainerBuildpath(jproject, containerPath, newEntry, changedAttributes, monitor);
 		} else {
 			updateProjectBuildpath(shell, jproject, newEntry, changedAttributes, monitor);
 		}
 	}


 	/**
 	 * Apply a modified buildpath entry to the buildpath. The buildpath entry can also be from a buildpath container.
 	 * @param shell If not null and the entry could not be found on the projects buildpath, a dialog will ask to put the entry on the buildpath
 	 * @param newEntry The modified entry. The entry's kind or path must be unchanged.
 	 * @param jproject Project where the entry belongs to
 	 * @param containerPath The path of the entry's parent container or <code>null</code> if the entry is not in a container
 	 * @param monitor The progress monitor to use
 	 * @throws CoreException
 	 */
 	public static void modifyBuildpathEntry(Shell shell, IBuildpathEntry newEntry, IScriptProject jproject, IPath containerPath, IProgressMonitor monitor) throws CoreException {
 		modifyBuildpathEntry(shell, newEntry, null, jproject, containerPath, monitor);
 	}

 	private static void updateContainerBuildpath(IScriptProject project, IPath containerPath, IBuildpathEntry newEntry, String[] changedAttributes, IProgressMonitor monitor) throws CoreException {
 		IBuildpathContainer container= DLTKCore.getBuildpathContainer(containerPath, project);
 		if (container == null) {
 			throw new CoreException(new Status(IStatus.ERROR, DLTKUIPlugin.PLUGIN_ID, IStatus.ERROR, "Container " + containerPath + " cannot be resolved", null));  //$NON-NLS-1$//$NON-NLS-2$
 		}
 		IBuildpathEntry[] entries= container.getBuildpathEntries(project);
 		IBuildpathEntry[] newEntries= new IBuildpathEntry[entries.length];
 		for (int i= 0; i < entries.length; i++) {
 			IBuildpathEntry curr= entries[i];
 			if (curr.getEntryKind() == newEntry.getEntryKind() && curr.getPath().equals(newEntry.getPath())) {
 				newEntries[i]= getUpdatedEntry(curr, newEntry, changedAttributes, project);
 			} else {
 				newEntries[i]= curr;
 			}
 		}
 		requestContainerUpdate(project, container, newEntries);
 		monitor.worked(1);
 	}

 	private static IBuildpathEntry getUpdatedEntry(IBuildpathEntry currEntry, IBuildpathEntry updatedEntry, String[] updatedAttributes, IScriptProject jproject) {
 		if (updatedAttributes == null) {
 			return updatedEntry; // used updated entry 'as is'
 		}
 		BPListElement currElem= BPListElement.createFromExisting(currEntry, jproject);
 		BPListElement newElem= BPListElement.createFromExisting(updatedEntry, jproject);
 		for (int i= 0; i < updatedAttributes.length; i++) {
 			String attrib= updatedAttributes[i];
 			currElem.setAttribute(attrib, newElem.getAttribute(attrib));
 		}
 		return currElem.getBuildpathEntry();
 	}

 	/**
 	 * Request a container update.
 	 * @param jproject The project of the container
 	 * @param container The container to requesta  change to
 	 * @param newEntries The updated entries
 	 * @throws CoreException
 	 */
 	public static void requestContainerUpdate(IScriptProject jproject, IBuildpathContainer container, IBuildpathEntry[] newEntries) throws CoreException {
 		IPath containerPath= container.getPath();
 		IBuildpathContainer updatedContainer= new UpdatedBuildpathContainer(container, newEntries);
 		BuildpathContainerInitializer initializer= DLTKCore.getBuildpathContainerInitializer(containerPath.segment(0));
 		if (initializer != null) {
 			initializer.requestBuildpathContainerUpdate(containerPath, jproject, updatedContainer);
 			if(DLTKCore.DEBUG) {
 				System.err.println("BuildPathSupport: Add user library preference page container"); //$NON-NLS-1$
 			//initializer.requestBuildpathContainerUpdate(containerPath, UserLibraryPreferencePage.getPlaceholderProject(), updatedContainer);
 			//DLTKCore.setBuildpathContainer(containerPath, new IScriptProject[] {jproject, UserLibraryPreferencePage.getPlaceholderProject()}, new IBuildpathContainer[] {updatedContainer, updatedContainer}, null); // force updating of containers, bug 62250
 			}
 		}
 	}

 	private static void updateProjectBuildpath(Shell shell, IScriptProject jproject, IBuildpathEntry newEntry, String[] changedAttributes, IProgressMonitor monitor) throws ModelException {
 		IBuildpathEntry[] oldBuildpath= jproject.getRawBuildpath();
 		int nEntries= oldBuildpath.length;
 		ArrayList newEntries= new ArrayList(nEntries + 1);
 		int entryKind= newEntry.getEntryKind();
 		IPath archivePath= newEntry.getPath();
 		boolean found= false;
 		for (int i= 0; i < nEntries; i++) {
 			IBuildpathEntry curr= oldBuildpath[i];
 			if (curr.getEntryKind() == entryKind && curr.getPath().equals(archivePath)) {
 				// add modified entry
 				newEntries.add(getUpdatedEntry(curr, newEntry, changedAttributes, jproject));
 				found= true;
 			} else {
 				newEntries.add(curr);
 			}
 		}
 		if (!found) {
 			if (!putArchiveOnBuildpathDialog(shell)) {
 				return;
 			}
 			// add new
 			newEntries.add(newEntry);
 		}
 		IBuildpathEntry[] newBuildpath= (IBuildpathEntry[]) newEntries.toArray(new IBuildpathEntry[newEntries.size()]);
 		jproject.setRawBuildpath(newBuildpath, monitor);
 	}

 	private static boolean putArchiveOnBuildpathDialog(final Shell shell) {
 		if (shell == null) {
 			return false;
 		}

 		final boolean[] result= new boolean[1];
 		shell.getDisplay().syncExec(new Runnable() {
 			public void run() {
 				String title= NewWizardMessages.BuildPathSupport_putoncpdialog_title;
 				String message= NewWizardMessages.BuildPathSupport_putoncpdialog_message;
 				result[0]= MessageDialog.openQuestion(shell, title, message);
 			}
 		});
 		return result[0];
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2007 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*

	*******************************************************************************/
	package org.eclipse.dltk.internal.ui.wizards.buildpath;

	import java.util.ArrayList;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.dltk.core.BuildpathContainerInitializer;
	import org.eclipse.dltk.core.DLTKCore;
	import org.eclipse.dltk.core.IBuildpathContainer;
	import org.eclipse.dltk.core.IBuildpathEntry;
	import org.eclipse.dltk.core.IBuiltinModuleProvider;
	import org.eclipse.dltk.core.IScriptProject;
	import org.eclipse.dltk.core.ModelException;
	import org.eclipse.dltk.internal.ui.wizards.NewWizardMessages;
	import org.eclipse.dltk.ui.DLTKUIPlugin;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.swt.widgets.Shell;


	/**
	*
	*/
	public class BuildPathSupport {

	public static final String InterpreterEnvironment_PREF_PAGE_ID= "org.eclipse.dltk.debug.ui.preferences.InterpreterPreferencePage"; //$NON-NLS-1$


	private BuildPathSupport() {
	super();
	}

	private static class UpdatedBuildpathContainer implements IBuildpathContainer {

	private IBuildpathEntry[] fNewEntries;
	private IBuildpathContainer fOriginal;

	public UpdatedBuildpathContainer(IBuildpathContainer original, IBuildpathEntry[] newEntries) {
	fNewEntries= newEntries;
	fOriginal= original;
	}


	public IBuildpathEntry[] getBuildpathEntries(IScriptProject project) {
	return fNewEntries;
	}

	public String getDescription(IScriptProject project) {
	return fOriginal.getDescription(project);
	}

	public int getKind() {
	return fOriginal.getKind();
	}

	public IPath getPath() {
	return fOriginal.getPath();
	}

	public IBuiltinModuleProvider getBuiltinProvider(IScriptProject project) {
	return fOriginal.getBuiltinProvider(project);
	}
	}

	/**
	* Apply a modified buildpath entry to the buildpath. The buildpath entry can also be from a buildpath container.
	* @param shell If not null and the entry could not be found on the projects buildpath, a dialog will ask to put the entry on the buildpath
	* @param newEntry The modified entry. The entry's kind or path must be unchanged.
	* @param changedAttributes The attibutes that have changed. See {@link BPListElement} for constants values.
	* @param jproject Project where the entry belongs to
	* @param containerPath The path of the entry's parent container or <code>null</code> if the entry is not in a container
	* @param monitor The progress monitor to use
	* @throws CoreException
	*/
	public static void modifyBuildpathEntry(Shell shell, IBuildpathEntry newEntry, String[] changedAttributes, IScriptProject jproject, IPath containerPath, IProgressMonitor monitor) throws CoreException {
	if (containerPath != null) {
	updateContainerBuildpath(jproject, containerPath, newEntry, changedAttributes, monitor);
	} else {
	updateProjectBuildpath(shell, jproject, newEntry, changedAttributes, monitor);
	}
	}


	/**
	* Apply a modified buildpath entry to the buildpath. The buildpath entry can also be from a buildpath container.
	* @param shell If not null and the entry could not be found on the projects buildpath, a dialog will ask to put the entry on the buildpath
	* @param newEntry The modified entry. The entry's kind or path must be unchanged.
	* @param jproject Project where the entry belongs to
	* @param containerPath The path of the entry's parent container or <code>null</code> if the entry is not in a container
	* @param monitor The progress monitor to use
	* @throws CoreException
	*/
	public static void modifyBuildpathEntry(Shell shell, IBuildpathEntry newEntry, IScriptProject jproject, IPath containerPath, IProgressMonitor monitor) throws CoreException {
	modifyBuildpathEntry(shell, newEntry, null, jproject, containerPath, monitor);
	}

	private static void updateContainerBuildpath(IScriptProject project, IPath containerPath, IBuildpathEntry newEntry, String[] changedAttributes, IProgressMonitor monitor) throws CoreException {
	IBuildpathContainer container= DLTKCore.getBuildpathContainer(containerPath, project);
	if (container == null) {
	throw new CoreException(new Status(IStatus.ERROR, DLTKUIPlugin.PLUGIN_ID, IStatus.ERROR, "Container " + containerPath + " cannot be resolved", null)); //$NON-NLS-1$//$NON-NLS-2$
	}
	IBuildpathEntry[] entries= container.getBuildpathEntries(project);
	IBuildpathEntry[] newEntries= new IBuildpathEntry[entries.length];
	for (int i= 0; i < entries.length; i++) {
	IBuildpathEntry curr= entries[i];
	if (curr.getEntryKind() == newEntry.getEntryKind() && curr.getPath().equals(newEntry.getPath())) {
	newEntries[i]= getUpdatedEntry(curr, newEntry, changedAttributes, project);
	} else {
	newEntries[i]= curr;
	}
	}
	requestContainerUpdate(project, container, newEntries);
	monitor.worked(1);
	}

	private static IBuildpathEntry getUpdatedEntry(IBuildpathEntry currEntry, IBuildpathEntry updatedEntry, String[] updatedAttributes, IScriptProject jproject) {
	if (updatedAttributes == null) {
	return updatedEntry; // used updated entry 'as is'
	}
	BPListElement currElem= BPListElement.createFromExisting(currEntry, jproject);
	BPListElement newElem= BPListElement.createFromExisting(updatedEntry, jproject);
	for (int i= 0; i < updatedAttributes.length; i++) {
	String attrib= updatedAttributes[i];
	currElem.setAttribute(attrib, newElem.getAttribute(attrib));
	}
	return currElem.getBuildpathEntry();
	}

	/**
	* Request a container update.
	* @param jproject The project of the container
	* @param container The container to requesta change to
	* @param newEntries The updated entries
	* @throws CoreException
	*/
	public static void requestContainerUpdate(IScriptProject jproject, IBuildpathContainer container, IBuildpathEntry[] newEntries) throws CoreException {
	IPath containerPath= container.getPath();
	IBuildpathContainer updatedContainer= new UpdatedBuildpathContainer(container, newEntries);
	BuildpathContainerInitializer initializer= DLTKCore.getBuildpathContainerInitializer(containerPath.segment(0));
	if (initializer != null) {
	initializer.requestBuildpathContainerUpdate(containerPath, jproject, updatedContainer);
	if(DLTKCore.DEBUG) {
	System.err.println("BuildPathSupport: Add user library preference page container"); //$NON-NLS-1$
	//initializer.requestBuildpathContainerUpdate(containerPath, UserLibraryPreferencePage.getPlaceholderProject(), updatedContainer);
	//DLTKCore.setBuildpathContainer(containerPath, new IScriptProject[] {jproject, UserLibraryPreferencePage.getPlaceholderProject()}, new IBuildpathContainer[] {updatedContainer, updatedContainer}, null); // force updating of containers, bug 62250
	}
	}
	}

	private static void updateProjectBuildpath(Shell shell, IScriptProject jproject, IBuildpathEntry newEntry, String[] changedAttributes, IProgressMonitor monitor) throws ModelException {
	IBuildpathEntry[] oldBuildpath= jproject.getRawBuildpath();
	int nEntries= oldBuildpath.length;
	ArrayList newEntries= new ArrayList(nEntries + 1);
	int entryKind= newEntry.getEntryKind();
	IPath archivePath= newEntry.getPath();
	boolean found= false;
	for (int i= 0; i < nEntries; i++) {
	IBuildpathEntry curr= oldBuildpath[i];
	if (curr.getEntryKind() == entryKind && curr.getPath().equals(archivePath)) {
	// add modified entry
	newEntries.add(getUpdatedEntry(curr, newEntry, changedAttributes, jproject));
	found= true;
	} else {
	newEntries.add(curr);
	}
	}
	if (!found) {
	if (!putArchiveOnBuildpathDialog(shell)) {
	return;
	}
	// add new
	newEntries.add(newEntry);
	}
	IBuildpathEntry[] newBuildpath= (IBuildpathEntry[]) newEntries.toArray(new IBuildpathEntry[newEntries.size()]);
	jproject.setRawBuildpath(newBuildpath, monitor);
	}

	private static boolean putArchiveOnBuildpathDialog(final Shell shell) {
	if (shell == null) {
	return false;
	}

	final boolean[] result= new boolean[1];
	shell.getDisplay().syncExec(new Runnable() {
	public void run() {
	String title= NewWizardMessages.BuildPathSupport_putoncpdialog_title;
	String message= NewWizardMessages.BuildPathSupport_putoncpdialog_message;
	result[0]= MessageDialog.openQuestion(shell, title, message);
	}
	});
	return result[0];
	}
	}