bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/java/JSPTranslationAdapter.java - sourceediting/webtools.sourceediting - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004 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
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.wst.jsdt.web.core.internal.java;

 import java.util.Collection;

 import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.Document;
 import org.eclipse.jface.text.DocumentEvent;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.IDocumentListener;
 import org.eclipse.jface.text.ITypedRegion;
 import org.eclipse.jface.text.Position;
 import org.eclipse.wst.jsdt.core.IJavaProject;
 import org.eclipse.wst.jsdt.core.JavaCore;
 import org.eclipse.wst.jsdt.web.core.internal.Logger;
 import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
 import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
 import org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument;
 import org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument;
 import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
 import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;

 /**
  * An adapter for getting a JSPTranslation of the document.
  *
  * @author pavery
  */
 public class JSPTranslationAdapter implements INodeAdapter, IDocumentListener {
 	// for debugging
 	private static final boolean DEBUG = "true".equalsIgnoreCase(Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jsptranslation")); //$NON-NLS-1$  //$NON-NLS-2$
 	private boolean fDocumentIsDirty = true;
 	private IDocument fJavaDocument = null;
 	private IDocument fJspDocument = null;
 	private JSPTranslationExtension fJSPTranslation = null;
 	private NullProgressMonitor fTranslationMonitor = null;
 	private JSPTranslator fTranslator = null;
 	private IDOMModel fXMLModel;


 	public JSPTranslationAdapter(IDOMModel xmlModel) {
 		fXMLModel = xmlModel;

 		if (fJspDocument != null) {
 			fJspDocument.removeDocumentListener(this);
 		}
 		fJspDocument = fXMLModel.getStructuredDocument();

 		if (fJspDocument != null) {
 			fJspDocument.addDocumentListener(this);
 		}
 		fDocumentIsDirty = true;
 		initializeJavaPlugins();
 	}

 	/**
 	 * @see org.eclipse.jface.text.IDocumentListener#documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent)
 	 */
 	public void documentAboutToBeChanged(DocumentEvent event) {
 	// do nothing
 	}

 	/**
 	 * @see org.eclipse.jface.text.IDocumentListener#documentChanged(org.eclipse.jface.text.DocumentEvent)
 	 */
 	public void documentChanged(DocumentEvent event) {
 		// Import may have changed, if so we need to signal for revalidation of
 		// other script regions.
 		//if(event==null) {
 			fDocumentIsDirty = true;
 			if(event==null) return;
 		//}
 		IStructuredDocumentRegion[] regions = ((IStructuredDocument)fJspDocument).getStructuredDocumentRegions(event.getOffset(), event.getLength());
 		for(int i = 0;i<regions.length;i++) {
 			NodeHelper helper = new NodeHelper(regions[i]);
 			if(helper.nameEquals("script")) {
 				fDocumentIsDirty = true;
 				String importName = helper.getAttributeValue("src");
 				if(importName!=null ) {
 					try {
 						((BasicStructuredDocument)fJspDocument).replace(0, fJspDocument.getLength(), fJspDocument.get());
 					} catch (BadLocationException ex) {
 						// TODO Auto-generated catch block
 						ex.printStackTrace();
 					}
 				}
 			}
 		}

 	}
 	public IJavaProject getJavaProject() {
 		IJavaProject javaProject = null;
 		try {
 			String baseLocation = fXMLModel.getBaseLocation();
 			// 20041129 (pa) the base location changed for XML model
 			// because of FileBuffers, so this code had to be updated
 			// https://bugs.eclipse.org/bugs/show_bug.cgi?id=79686
 			IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
 			IPath filePath = new Path(baseLocation);
 			IProject project = null;
 			if (filePath.segmentCount() > 0) {
 				project = root.getProject(filePath.segment(0));
 			}
 			if (project != null) {
 				javaProject = JavaCore.create(project);
 			}
 		} catch (Exception ex) {
 			if (fXMLModel != null) {
 				Logger.logException("(JSPTranslationAdapter) problem getting java project from the XMLModel's baseLocation > " + fXMLModel.getBaseLocation(), ex); //$NON-NLS-1$
 			} else {
 				Logger.logException("(JSPTranslationAdapter) problem getting java project", ex); //$NON-NLS-1$
 			}
 		}
 		return javaProject;
 	}

 	/**
 	 * Returns the JSPTranslation for this adapter.
 	 *
 	 * @return a JSPTranslationExtension
 	 */
 	public JSPTranslationExtension getJSPTranslation() {
 		synchronized(fXMLModel) {
 			if (fJSPTranslation == null || fDocumentIsDirty) {
 				JSPTranslator translator = null;
 				if (fXMLModel != null && fXMLModel.getIndexedRegion(0) != null) {
 					translator = getTranslator((IDOMNode) fXMLModel.getIndexedRegion(0));
 					translator.translate();
 					StringBuffer javaContents = translator.getTranslation();
 					fJavaDocument = new Document(javaContents.toString());
 				} else {
 					// empty document case
 					translator = new JSPTranslator();
 					StringBuffer emptyContents = translator.getEmptyTranslation();
 					fJavaDocument = new Document(emptyContents.toString());
 				}
 				// it's going to be rebuilt, so we release it here
 				if (fJSPTranslation != null) {
 					if (JSPTranslationAdapter.DEBUG) {
 						System.out.println("JSPTranslationAdapter releasing:" + fJSPTranslation); //$NON-NLS-1$
 					}
 					fJSPTranslation.release();
 				}
 				fJSPTranslation = new JSPTranslationExtension(fXMLModel.getStructuredDocument(), fJavaDocument, getJavaProject(), translator);
 				fDocumentIsDirty = false;
 			}
 		}
 		return fJSPTranslation;
 	}

 	/**
 	 * Returns the JSPTranslator for this adapter. If it's null, a new
 	 * translator is created with the xmlNode. Otherwise the
 	 * translator.reset(xmlNode) is called to reset the current local
 	 * translator.
 	 *
 	 * @param xmlNode
 	 *            the first node of the JSP document to be translated
 	 * @return the JSPTranslator for this adapter (creates if null)
 	 */
 	private JSPTranslator getTranslator(IDOMNode xmlNode) {

 			if (fTranslator == null) {
 				fTranslationMonitor = new NullProgressMonitor();
 				fTranslator = new JSPTranslator();
 				fTranslator.reset(xmlNode, fTranslationMonitor);
 			} else {
 				fTranslator.reset(xmlNode, fTranslationMonitor);
 			}
 			return fTranslator;

 	}


 	/**
 	 * Initialize the required Java Plugins
 	 */
 	private void initializeJavaPlugins() {
 		JavaCore.getPlugin();
 		// getJavaProject();
 	}

 	public boolean isAdapterForType(Object type) {
 		return type.equals(IJSPTranslation.class);
 	}

 	public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) {
 		synchronized(fXMLModel) {
 			fDocumentIsDirty = true;
 			System.out.println("IMPLEMENT public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) {");
 		}
 	}

 	public void release() {
 		if (fJspDocument != null) {
 			fJspDocument.removeDocumentListener(this);
 		}
 		if (fTranslationMonitor != null) {
 			fTranslationMonitor.setCanceled(true);
 		}
 		if (fJSPTranslation != null) {
 			if (JSPTranslationAdapter.DEBUG) {
 				System.out.println("JSPTranslationAdapter releasing:" + fJSPTranslation); //$NON-NLS-1$
 			}
 			fJSPTranslation.release();
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004 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
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.wst.jsdt.web.core.internal.java;

	import java.util.Collection;

	import org.eclipse.core.resources.IFolder;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IWorkspaceRoot;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.jface.text.BadLocationException;
	import org.eclipse.jface.text.Document;
	import org.eclipse.jface.text.DocumentEvent;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.IDocumentListener;
	import org.eclipse.jface.text.ITypedRegion;
	import org.eclipse.jface.text.Position;
	import org.eclipse.wst.jsdt.core.IJavaProject;
	import org.eclipse.wst.jsdt.core.JavaCore;
	import org.eclipse.wst.jsdt.web.core.internal.Logger;
	import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
	import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
	import org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument;
	import org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument;
	import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
	import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;

	/**
	* An adapter for getting a JSPTranslation of the document.
	*
	* @author pavery
	*/
	public class JSPTranslationAdapter implements INodeAdapter, IDocumentListener {
	// for debugging
	private static final boolean DEBUG = "true".equalsIgnoreCase(Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jsptranslation")); //$NON-NLS-1$ //$NON-NLS-2$
	private boolean fDocumentIsDirty = true;
	private IDocument fJavaDocument = null;
	private IDocument fJspDocument = null;
	private JSPTranslationExtension fJSPTranslation = null;
	private NullProgressMonitor fTranslationMonitor = null;
	private JSPTranslator fTranslator = null;
	private IDOMModel fXMLModel;


	public JSPTranslationAdapter(IDOMModel xmlModel) {
	fXMLModel = xmlModel;

	if (fJspDocument != null) {
	fJspDocument.removeDocumentListener(this);
	}
	fJspDocument = fXMLModel.getStructuredDocument();

	if (fJspDocument != null) {
	fJspDocument.addDocumentListener(this);
	}
	fDocumentIsDirty = true;
	initializeJavaPlugins();
	}

	/**
	* @see org.eclipse.jface.text.IDocumentListener#documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent)
	*/
	public void documentAboutToBeChanged(DocumentEvent event) {
	// do nothing
	}

	/**
	* @see org.eclipse.jface.text.IDocumentListener#documentChanged(org.eclipse.jface.text.DocumentEvent)
	*/
	public void documentChanged(DocumentEvent event) {
	// Import may have changed, if so we need to signal for revalidation of
	// other script regions.
	//if(event==null) {
	fDocumentIsDirty = true;
	if(event==null) return;
	//}
	IStructuredDocumentRegion[] regions = ((IStructuredDocument)fJspDocument).getStructuredDocumentRegions(event.getOffset(), event.getLength());
	for(int i = 0;i<regions.length;i++) {
	NodeHelper helper = new NodeHelper(regions[i]);
	if(helper.nameEquals("script")) {
	fDocumentIsDirty = true;
	String importName = helper.getAttributeValue("src");
	if(importName!=null ) {
	try {
	((BasicStructuredDocument)fJspDocument).replace(0, fJspDocument.getLength(), fJspDocument.get());
	} catch (BadLocationException ex) {
	// TODO Auto-generated catch block
	ex.printStackTrace();
	}
	}
	}
	}

	}
	public IJavaProject getJavaProject() {
	IJavaProject javaProject = null;
	try {
	String baseLocation = fXMLModel.getBaseLocation();
	// 20041129 (pa) the base location changed for XML model
	// because of FileBuffers, so this code had to be updated
	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=79686
	IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
	IPath filePath = new Path(baseLocation);
	IProject project = null;
	if (filePath.segmentCount() > 0) {
	project = root.getProject(filePath.segment(0));
	}
	if (project != null) {
	javaProject = JavaCore.create(project);
	}
	} catch (Exception ex) {
	if (fXMLModel != null) {
	Logger.logException("(JSPTranslationAdapter) problem getting java project from the XMLModel's baseLocation > " + fXMLModel.getBaseLocation(), ex); //$NON-NLS-1$
	} else {
	Logger.logException("(JSPTranslationAdapter) problem getting java project", ex); //$NON-NLS-1$
	}
	}
	return javaProject;
	}

	/**
	* Returns the JSPTranslation for this adapter.
	*
	* @return a JSPTranslationExtension
	*/
	public JSPTranslationExtension getJSPTranslation() {
	synchronized(fXMLModel) {
	if (fJSPTranslation == null \|\| fDocumentIsDirty) {
	JSPTranslator translator = null;
	if (fXMLModel != null && fXMLModel.getIndexedRegion(0) != null) {
	translator = getTranslator((IDOMNode) fXMLModel.getIndexedRegion(0));
	translator.translate();
	StringBuffer javaContents = translator.getTranslation();
	fJavaDocument = new Document(javaContents.toString());
	} else {
	// empty document case
	translator = new JSPTranslator();
	StringBuffer emptyContents = translator.getEmptyTranslation();
	fJavaDocument = new Document(emptyContents.toString());
	}
	// it's going to be rebuilt, so we release it here
	if (fJSPTranslation != null) {
	if (JSPTranslationAdapter.DEBUG) {
	System.out.println("JSPTranslationAdapter releasing:" + fJSPTranslation); //$NON-NLS-1$
	}
	fJSPTranslation.release();
	}
	fJSPTranslation = new JSPTranslationExtension(fXMLModel.getStructuredDocument(), fJavaDocument, getJavaProject(), translator);
	fDocumentIsDirty = false;
	}
	}
	return fJSPTranslation;
	}

	/**
	* Returns the JSPTranslator for this adapter. If it's null, a new
	* translator is created with the xmlNode. Otherwise the
	* translator.reset(xmlNode) is called to reset the current local
	* translator.
	*
	* @param xmlNode
	* the first node of the JSP document to be translated
	* @return the JSPTranslator for this adapter (creates if null)
	*/
	private JSPTranslator getTranslator(IDOMNode xmlNode) {

	if (fTranslator == null) {
	fTranslationMonitor = new NullProgressMonitor();
	fTranslator = new JSPTranslator();
	fTranslator.reset(xmlNode, fTranslationMonitor);
	} else {
	fTranslator.reset(xmlNode, fTranslationMonitor);
	}
	return fTranslator;

	}



	/**
	* Initialize the required Java Plugins
	*/
	private void initializeJavaPlugins() {
	JavaCore.getPlugin();
	// getJavaProject();
	}

	public boolean isAdapterForType(Object type) {
	return type.equals(IJSPTranslation.class);
	}

	public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) {
	synchronized(fXMLModel) {
	fDocumentIsDirty = true;
	System.out.println("IMPLEMENT public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) {");
	}
	}

	public void release() {
	if (fJspDocument != null) {
	fJspDocument.removeDocumentListener(this);
	}
	if (fTranslationMonitor != null) {
	fTranslationMonitor.setCanceled(true);
	}
	if (fJSPTranslation != null) {
	if (JSPTranslationAdapter.DEBUG) {
	System.out.println("JSPTranslationAdapter releasing:" + fJSPTranslation); //$NON-NLS-1$
	}
	fJSPTranslation.release();
	}
	}
	}