bundles/org.eclipse.wst.jsdt.web.core/src/org/eclipse/wst/jsdt/web/core/internal/java/JSPTranslator.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.io.BufferedInputStream;
 import java.io.BufferedReader;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Vector;

 import org.eclipse.core.filebuffers.FileBuffers;
 import org.eclipse.core.filebuffers.ITextFileBuffer;
 import org.eclipse.core.filebuffers.ITextFileBufferManager;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.Position;
 import org.eclipse.wst.jsdt.web.core.internal.Logger;
 import org.eclipse.wst.sse.core.StructuredModelManager;
 import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
 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.provisional.text.ITextRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionCollection;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionContainer;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
 import org.eclipse.wst.sse.core.utils.StringUtils;
 import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
 import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
 import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;

 /**
  * Translates a JSP document into a HttpServlet. Keeps two way mapping from java
  * translation to the original JSP source, which can be obtained through
  * getJava2JspRanges() and getJsp2JavaRanges().
  *
  * @author pavery
  */
 public class JSPTranslator {
 	// for debugging
 	private static final boolean DEBUG;
 	private static final boolean DEBUG_SAVE_OUTPUT = "true".equalsIgnoreCase(Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jsptranslationstodisk")); //$NON-NLS-1$  //$NON-NLS-2$
 	public static final String ENDL = "\n"; //$NON-NLS-1$
 	static {
 		String value = Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jspjavamapping"); //$NON-NLS-1$
 		DEBUG = value != null && value.equalsIgnoreCase("true"); //$NON-NLS-1$
 	}
 	private IStructuredDocumentRegion fCurrentNode;
 	private String fClassname;
 	/* map of ALL ranges */
 	HashMap fJsToHTMLRanges = new HashMap();
 	/**
 	 * save JSP document text for later use may just want to read this from the
 	 * file or strucdtured document depending what is available
 	 */
 	private StringBuffer fHtmlTextBuffer = new StringBuffer();
 	private IProgressMonitor fProgressMonitor = null;
 	private StringBuffer fResult;
 	private ArrayList rawImports = new ArrayList(); // traslated
 	StringBuffer fScriptText = new StringBuffer();
 	private IStructuredDocument fStructuredDocument = null;
 	private IDOMModel fStructuredModel = null;
 	/* use java script by default */
 	private boolean isGlobalJs = true;
 	private int scriptOffset = 0;
 	private ArrayList importLocationsInHtml = new ArrayList();

 	private void advanceNextNode() {
 		setCurrentNode(getCurrentNode().getNext());
 	}

 	protected void append(StringBuffer buf) {
 		fResult.append(buf.toString());
 	}

 	/**
 	 * put the final java document together
 	 */
 	private final void buildResult() {
 		fResult = new StringBuffer(fScriptText.length());
 		int javaOffset = 0;
 		append(fScriptText);
 		javaOffset += fScriptText.length();
 	}

 	/**
 	 * configure using an XMLNode
 	 *
 	 * @param node
 	 * @param monitor
 	 */
 	private void configure(IDOMNode node, IProgressMonitor monitor) {
 		fProgressMonitor = monitor;
 		fStructuredModel = node.getModel();

 		fStructuredDocument = fStructuredModel.getStructuredDocument();
 		String className = createClassname(node);
 		if (className.length() > 0) {
 			setClassname(className);
 		}
 	}

 	/**
 	 * @param node
 	 * @return
 	 */
 	private String createClassname(IDOMNode node) {
 		String classname = ""; //$NON-NLS-1$
 		if (node != null) {
 			String base = node.getModel().getBaseLocation();
 			// classname = base;
 			classname = JSP2ServletNameUtil.mangle(base);
 		}
 		return classname;
 	}

 	public String getClassname() {
 		return this.fClassname != null ? this.fClassname : "GenericJSSourceFile"; //$NON-NLS-1$
 	}

 	final public IStructuredDocumentRegion getCurrentNode() {
 		return fCurrentNode;
 	}

 	/**
 	 * @return just the "shell" of a servlet, nothing contributed from the JSP
 	 *         doc
 	 */
 	public final StringBuffer getEmptyTranslation() {
 		reset();
 		buildResult();
 		return getTranslation();
 	}

 	public List getExcludedElements() {
 		return null;
 	}

 	public IFile getFile() {
 			return FileBuffers.getWorkspaceFileAtLocation(new Path(fStructuredModel.getBaseLocation()));
 	}

 	/**
 	 * map of ranges (positions) in java document to ranges in jsp document
 	 *
 	 * @return a map of java positions to jsp positions.
 	 */
 	public HashMap getJs2HtmlRanges() {
 		return fJsToHTMLRanges;
 	}

 	/**
 	 * map of ranges in jsp document to ranges in java document.
 	 *
 	 * @return a map of jsp positions to java positions, or null if no
 	 *         translation has occured yet (the map hasn't been built).
 	 */
 	public HashMap getHtml2JsRanges() {
 		if (fJsToHTMLRanges == null) {
 			return null;
 		}
 		HashMap flipFlopped = new HashMap();
 		Iterator keys = fJsToHTMLRanges.keySet().iterator();
 		Object range = null;
 		while (keys.hasNext()) {
 			range = keys.next();
 			// System.out.println("Offset:"+ p.offset + " length:" + p.length);
 			flipFlopped.put(fJsToHTMLRanges.get(range), range);
 		}
 		return flipFlopped;
 	}

 	/**
 	 * Only valid after a configure(...), translate(...) or
 	 * translateFromFile(...) call
 	 *
 	 * @return the text in the JSP file
 	 */
 	public final String getHtmlText() {
 		return fHtmlTextBuffer.toString();
 	}

 	public IStructuredDocument getStructuredDocument() {
 		return fStructuredDocument;
 	}

 	/**
 	 * Only valid after a configure(...), translate(...) or
 	 * translateFromFile(...) call
 	 *
 	 * @return the current result (java translation) buffer
 	 */
 	public final StringBuffer getTranslation() {
 		if (JSPTranslator.DEBUG) {
 			StringBuffer debugString = new StringBuffer();
 			try {
 				Iterator it = fJsToHTMLRanges.keySet().iterator();
 				while (it.hasNext()) {
 					debugString.append("--------------------------------------------------------------\n"); //$NON-NLS-1$
 					Position java = (Position) it.next();
 					debugString.append("Java range:[" + java.offset + ":" + java.length + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 					debugString.append("[" + fResult.toString().substring(java.offset, java.offset + java.length) + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$
 					debugString.append("--------------------------------------------------------------\n"); //$NON-NLS-1$
 					debugString.append("|maps to...|\n"); //$NON-NLS-1$
 					debugString.append("==============================================================\n"); //$NON-NLS-1$
 					Position jsp = (Position) fJsToHTMLRanges.get(java);
 					debugString.append("JSP range:[" + jsp.offset + ":" + jsp.length + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 					debugString.append("[" + fHtmlTextBuffer.toString().substring(jsp.offset, jsp.offset + jsp.length) + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$
 					debugString.append("==============================================================\n"); //$NON-NLS-1$
 					debugString.append("\n"); //$NON-NLS-1$
 					debugString.append("\n"); //$NON-NLS-1$
 				}
 			} catch (Exception e) {
 				Logger.logException("JSPTranslation error", e); //$NON-NLS-1$
 			}
 			Logger.log(Logger.INFO_DEBUG, debugString.toString());

 			IProject project = getFile().getProject();
 			String shortenedClassname = StringUtils.replace(getFile().getName(), ".", "_");
 			String filename = shortenedClassname + ".js";
 			IPath path = project.getFullPath().append("src/" + filename);
 			try {
 				IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(path);
 				if (!file.exists()) {
 					file.create(new ByteArrayInputStream(new byte[0]), true, new NullProgressMonitor());
 				}
 				ITextFileBufferManager textFileBufferManager = FileBuffers.getTextFileBufferManager();
 				textFileBufferManager.connect(path, new NullProgressMonitor());
 				ITextFileBuffer javaOutputBuffer = textFileBufferManager.getTextFileBuffer(path);
 				javaOutputBuffer.getDocument().set(StringUtils.replace(fResult.toString(), getClassname(), shortenedClassname));
 				javaOutputBuffer.commit(new NullProgressMonitor(), true);
 				textFileBufferManager.disconnect(path, new NullProgressMonitor());
 			} catch (Exception e) {
 				// this is just for debugging, ignore
 			}
 			System.out.println("Updated translation: " + path);
 		}
 		return fResult;
 	}

 	/**
 	 *
 	 * @return the status of the translator's progrss monitor, false if the
 	 *         monitor is null
 	 */
 	private boolean isCanceled() {
 		return (fProgressMonitor == null) ? false : fProgressMonitor.isCanceled();
 	}

 	/**
 	 * Reinitialize some fields
 	 */
 	private void reset() {
 		scriptOffset = 0;
 		// reset progress monitor
 		if (fProgressMonitor != null) {
 			fProgressMonitor.setCanceled(false);
 		}
 		fScriptText = new StringBuffer();
 		fResult = null;
 		fCurrentNode = null;
 		fJsToHTMLRanges.clear();
 		fHtmlTextBuffer = new StringBuffer();
 		rawImports.clear();
 		importLocationsInHtml.clear();
 	}

 	public ArrayList getImportHtmlRanges() {
 		return importLocationsInHtml;
 	}

 	/**
 	 * So that the JSPTranslator can be reused.
 	 */
 	public void reset(IDOMNode node, IProgressMonitor progress) {
 		// initialize some things on node
 		configure(node, progress);
 		reset();
 		// set the jsp text buffer
 		fHtmlTextBuffer.append(fStructuredDocument==null?"":fStructuredDocument.get());
 	}


 	public void setClassname(String classname) {
 		this.fClassname = classname;
 	}

 	private IStructuredDocumentRegion setCurrentNode(IStructuredDocumentRegion currentNode) {
 		return this.fCurrentNode = currentNode;
 	}


 	public void translate() {
 		setCurrentNode(fStructuredDocument.getFirstStructuredDocumentRegion());
 		while (getCurrentNode() != null && !isCanceled()) {
 			// System.out.println("Translator Looking at Node
 			// type:"+getCurrentNode().getType()+"---------------------------------:");
 			// System.out.println(new NodeHelper(getCurrentNode()));
 			// i.println("/---------------------------------------------------");
 			if (getCurrentNode().getType() == DOMRegionContext.XML_TAG_NAME) {
 				NodeHelper nh = new NodeHelper(getCurrentNode());
 				if ((!nh.isEndTag() || nh.isSelfClosingTag()) && nh.nameEquals("script")) {
 					/*
 					 * Handles the following cases: <script
 					 * type="javascriptype"> <script language="javascriptype>
 					 * <script src='' type=javascriptype> <script src=''
 					 * language=javascripttype <script src=''> global js type.
 					 * <script> (global js type)
 					 */
 					if (NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("type")) || NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("language")) || isGlobalJs) {
 						if (nh.containsAttribute(new String[] { "src" })) {
 							// Handle import
 							translateScriptImportNode(getCurrentNode());
 						}
 						// } else {
 						// handle script section
 						if (getCurrentNode().getNext() != null && getCurrentNode().getNext().getType() == DOMRegionContext.BLOCK_TEXT) {
 							translateJSNode(getCurrentNode().getNext());
 						}
 					} // End search for <script> sections
 				} else if (nh.containsAttribute(JsDataTypes.HTMLATREVENTS)) {
 					/* Check for embeded JS events in any tags */
 					translateInlineJSNode(getCurrentNode());
 				} else if (nh.nameEquals("META") && nh.attrEquals("http-equiv", "Content-Script-Type") && nh.containsAttribute(new String[] { "content" })) {
 					// <META http-equiv="Content-Script-Type" content="type">
 					isGlobalJs = NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("content"));
 				} // End big if of JS types
 			}
 			if (getCurrentNode() != null) {
 				advanceNextNode();
 			}
 		} // end while loop
 		buildResult();
 	}

 	public void translateInlineJSNode(IStructuredDocumentRegion container) {
 		// System.out
 		// .println("JSPTranslator.translateInlineJSNode Entered
 		// w/ScriptOffset:"
 		// + scriptOffset);
 		NodeHelper nh = new NodeHelper(container);
 		// System.out.println("inline js node looking at:\n" + nh);
 		/* start a function header.. will amend later */
 		ITextRegionList t = container.getRegions();
 		ITextRegion r;
 		Iterator regionIterator = t.iterator();
 		while (regionIterator.hasNext()) {
 			r = (ITextRegion) regionIterator.next();
 			if (r.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
 				int start = r.getStart();
 				int offset = r.getTextEnd();
 				String tagAttrname = container.getText().substring(start, offset).trim();
 				/*
 				 * Attribute values aren't case sensative, also make sure next
 				 * region is attrib value
 				 */
 				if (NodeHelper.isInArray(JsDataTypes.HTMLATREVENTS, tagAttrname)) {
 					if (regionIterator.hasNext()) {
 						regionIterator.next();
 					}
 					if (regionIterator.hasNext()) {
 						r = ((ITextRegion) regionIterator.next());
 					}
 					if (r.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
 						int valStartOffset = container.getStartOffset(r);
 						// int valEndOffset = r.getTextEnd();
 						String rawText = container.getText().substring(r.getStart(), r.getTextEnd());
 						Position inScript = new Position(scriptOffset, rawText.length());
 						/* Quoted text starts +1 and ends -1 char */
 						Position inHtml = new Position(valStartOffset, rawText.length());
 						/*
 						 * build the function. Addiotional function "baggage"
 						 * not of concern to editor
 						 */
 						fJsToHTMLRanges.put(inScript, inHtml);
 						fScriptText.append(rawText);
 						scriptOffset = fScriptText.length();
 						if (JSPTranslator.DEBUG) {
 							System.out.println("START-----------------JS Translator Script loop---------------");
 							System.out.println("Translated to:\n" + rawText + "\n");
 							System.out.println("HTML Position:[" + inHtml.getOffset() + "," + inHtml.getLength() + "]");
 							System.out.println("Script Position:[" + inScript.getOffset() + "," + inScript.getLength() + "]");
 							System.out.println("Added (js) Text length:" + rawText.length());
 							System.out.println("END-----------------JS Translator Script loop---------------");
 						}
 					}
 				}
 			}
 		}
 	}

 	public ArrayList getRawImports() {
 		return this.rawImports;
 	}

 	public void translateJSNode(IStructuredDocumentRegion container) {
 		ITextRegionCollection containerRegion = container;
 		Iterator regions = containerRegion.getRegions().iterator();
 		ITextRegion region = null;
 		while (regions.hasNext()) {
 			region = (ITextRegion) regions.next();
 			String type = region.getType();
 			// content assist was not showing up in JSP inside a javascript
 			// region
 			if (type == DOMRegionContext.BLOCK_TEXT) {
 				int scriptStart = container.getStartOffset();
 				int scriptTextEnd = container.getEndOffset() - container.getStartOffset();

 				String regionText = container.getText().substring(region.getStart(), region.getEnd());
 				int regionLength = regionText.length();
 				Position inScript = new Position(scriptOffset, regionLength);
 				Position inHtml = new Position(scriptStart, scriptTextEnd);
 				if (JSPTranslator.DEBUG) {
 					System.out.println("START-----------------JS Translator Script loop---------------");
 					 System.out.println("Container getStartOffset():" +
 					 container.getStartOffset());
 					 System.out.println("Container getEnd():" +
 					 container.getEnd());
 					 System.out.println("Container getEndOffset():" +
 					 container.getEndOffset());
 					 System.out.println("Container getType():" +
 					 container.getType());

 					 System.out.println("Region getStart():" + region.getStart());
 					 System.out.println("Region getEnd():" + region.getStart());
 					 System.out.println("Region getType():" + region.getType());
 					 System.out.println("Container Text Length:" +
 					 container.getText().length());

 					 System.out.println("Container Text:" + container.getText());

 					System.out.println("Translated to:\n" + regionText + "\n");
 					System.out.println("HTML Position:[" + inHtml.getOffset() + "," + inHtml.getLength() + "]");
 					System.out.println("Script Position:[" + inScript.getOffset() + "," + inScript.getLength() + "]");
 					System.out.println("END-----------------JS Translator Script loop---------------");
 					//
 				}
 				fJsToHTMLRanges.put(inScript, inHtml);
 				fScriptText.append(regionText);
 				scriptOffset = fScriptText.length();
 			}
 		}
 	}

 	public void translateScriptImportNode(IStructuredDocumentRegion region) {
 		NodeHelper nh = new NodeHelper(region);
 		String importName = nh.getAttributeValue("src");

 		if (importName != null && !importName.equals("")) {
 			rawImports.add(importName);
 			Position inHtml = new Position(region.getStartOffset(), region.getEndOffset());
 			importLocationsInHtml.add(inHtml);

 		}

 	}

 }
	/*******************************************************************************
	* 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.io.BufferedInputStream;
	import java.io.BufferedReader;
	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.io.Reader;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Vector;

	import org.eclipse.core.filebuffers.FileBuffers;
	import org.eclipse.core.filebuffers.ITextFileBuffer;
	import org.eclipse.core.filebuffers.ITextFileBufferManager;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.Position;
	import org.eclipse.wst.jsdt.web.core.internal.Logger;
	import org.eclipse.wst.sse.core.StructuredModelManager;
	import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
	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.provisional.text.ITextRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionCollection;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionContainer;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
	import org.eclipse.wst.sse.core.utils.StringUtils;
	import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
	import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
	import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;

	/**
	* Translates a JSP document into a HttpServlet. Keeps two way mapping from java
	* translation to the original JSP source, which can be obtained through
	* getJava2JspRanges() and getJsp2JavaRanges().
	*
	* @author pavery
	*/
	public class JSPTranslator {
	// for debugging
	private static final boolean DEBUG;
	private static final boolean DEBUG_SAVE_OUTPUT = "true".equalsIgnoreCase(Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jsptranslationstodisk")); //$NON-NLS-1$ //$NON-NLS-2$
	public static final String ENDL = "\n"; //$NON-NLS-1$
	static {
	String value = Platform.getDebugOption("org.eclipse.wst.jsdt.web.core/debug/jspjavamapping"); //$NON-NLS-1$
	DEBUG = value != null && value.equalsIgnoreCase("true"); //$NON-NLS-1$
	}
	private IStructuredDocumentRegion fCurrentNode;
	private String fClassname;
	/* map of ALL ranges */
	HashMap fJsToHTMLRanges = new HashMap();
	/**
	* save JSP document text for later use may just want to read this from the
	* file or strucdtured document depending what is available
	*/
	private StringBuffer fHtmlTextBuffer = new StringBuffer();
	private IProgressMonitor fProgressMonitor = null;
	private StringBuffer fResult;
	private ArrayList rawImports = new ArrayList(); // traslated
	StringBuffer fScriptText = new StringBuffer();
	private IStructuredDocument fStructuredDocument = null;
	private IDOMModel fStructuredModel = null;
	/* use java script by default */
	private boolean isGlobalJs = true;
	private int scriptOffset = 0;
	private ArrayList importLocationsInHtml = new ArrayList();

	private void advanceNextNode() {
	setCurrentNode(getCurrentNode().getNext());
	}

	protected void append(StringBuffer buf) {
	fResult.append(buf.toString());
	}

	/**
	* put the final java document together
	*/
	private final void buildResult() {
	fResult = new StringBuffer(fScriptText.length());
	int javaOffset = 0;
	append(fScriptText);
	javaOffset += fScriptText.length();
	}

	/**
	* configure using an XMLNode
	*
	* @param node
	* @param monitor
	*/
	private void configure(IDOMNode node, IProgressMonitor monitor) {
	fProgressMonitor = monitor;
	fStructuredModel = node.getModel();

	fStructuredDocument = fStructuredModel.getStructuredDocument();
	String className = createClassname(node);
	if (className.length() > 0) {
	setClassname(className);
	}
	}

	/**
	* @param node
	* @return
	*/
	private String createClassname(IDOMNode node) {
	String classname = ""; //$NON-NLS-1$
	if (node != null) {
	String base = node.getModel().getBaseLocation();
	// classname = base;
	classname = JSP2ServletNameUtil.mangle(base);
	}
	return classname;
	}

	public String getClassname() {
	return this.fClassname != null ? this.fClassname : "GenericJSSourceFile"; //$NON-NLS-1$
	}

	final public IStructuredDocumentRegion getCurrentNode() {
	return fCurrentNode;
	}

	/**
	* @return just the "shell" of a servlet, nothing contributed from the JSP
	* doc
	*/
	public final StringBuffer getEmptyTranslation() {
	reset();
	buildResult();
	return getTranslation();
	}

	public List getExcludedElements() {
	return null;
	}

	public IFile getFile() {
	return FileBuffers.getWorkspaceFileAtLocation(new Path(fStructuredModel.getBaseLocation()));
	}

	/**
	* map of ranges (positions) in java document to ranges in jsp document
	*
	* @return a map of java positions to jsp positions.
	*/
	public HashMap getJs2HtmlRanges() {
	return fJsToHTMLRanges;
	}

	/**
	* map of ranges in jsp document to ranges in java document.
	*
	* @return a map of jsp positions to java positions, or null if no
	* translation has occured yet (the map hasn't been built).
	*/
	public HashMap getHtml2JsRanges() {
	if (fJsToHTMLRanges == null) {
	return null;
	}
	HashMap flipFlopped = new HashMap();
	Iterator keys = fJsToHTMLRanges.keySet().iterator();
	Object range = null;
	while (keys.hasNext()) {
	range = keys.next();
	// System.out.println("Offset:"+ p.offset + " length:" + p.length);
	flipFlopped.put(fJsToHTMLRanges.get(range), range);
	}
	return flipFlopped;
	}

	/**
	* Only valid after a configure(...), translate(...) or
	* translateFromFile(...) call
	*
	* @return the text in the JSP file
	*/
	public final String getHtmlText() {
	return fHtmlTextBuffer.toString();
	}

	public IStructuredDocument getStructuredDocument() {
	return fStructuredDocument;
	}

	/**
	* Only valid after a configure(...), translate(...) or
	* translateFromFile(...) call
	*
	* @return the current result (java translation) buffer
	*/
	public final StringBuffer getTranslation() {
	if (JSPTranslator.DEBUG) {
	StringBuffer debugString = new StringBuffer();
	try {
	Iterator it = fJsToHTMLRanges.keySet().iterator();
	while (it.hasNext()) {
	debugString.append("--------------------------------------------------------------\n"); //$NON-NLS-1$
	Position java = (Position) it.next();
	debugString.append("Java range:[" + java.offset + ":" + java.length + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	debugString.append("[" + fResult.toString().substring(java.offset, java.offset + java.length) + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$
	debugString.append("--------------------------------------------------------------\n"); //$NON-NLS-1$
	debugString.append("\|maps to...\|\n"); //$NON-NLS-1$
	debugString.append("==============================================================\n"); //$NON-NLS-1$
	Position jsp = (Position) fJsToHTMLRanges.get(java);
	debugString.append("JSP range:[" + jsp.offset + ":" + jsp.length + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	debugString.append("[" + fHtmlTextBuffer.toString().substring(jsp.offset, jsp.offset + jsp.length) + "]\n"); //$NON-NLS-1$ //$NON-NLS-2$
	debugString.append("==============================================================\n"); //$NON-NLS-1$
	debugString.append("\n"); //$NON-NLS-1$
	debugString.append("\n"); //$NON-NLS-1$
	}
	} catch (Exception e) {
	Logger.logException("JSPTranslation error", e); //$NON-NLS-1$
	}
	Logger.log(Logger.INFO_DEBUG, debugString.toString());

	IProject project = getFile().getProject();
	String shortenedClassname = StringUtils.replace(getFile().getName(), ".", "_");
	String filename = shortenedClassname + ".js";
	IPath path = project.getFullPath().append("src/" + filename);
	try {
	IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(path);
	if (!file.exists()) {
	file.create(new ByteArrayInputStream(new byte[0]), true, new NullProgressMonitor());
	}
	ITextFileBufferManager textFileBufferManager = FileBuffers.getTextFileBufferManager();
	textFileBufferManager.connect(path, new NullProgressMonitor());
	ITextFileBuffer javaOutputBuffer = textFileBufferManager.getTextFileBuffer(path);
	javaOutputBuffer.getDocument().set(StringUtils.replace(fResult.toString(), getClassname(), shortenedClassname));
	javaOutputBuffer.commit(new NullProgressMonitor(), true);
	textFileBufferManager.disconnect(path, new NullProgressMonitor());
	} catch (Exception e) {
	// this is just for debugging, ignore
	}
	System.out.println("Updated translation: " + path);
	}
	return fResult;
	}

	/**
	*
	* @return the status of the translator's progrss monitor, false if the
	* monitor is null
	*/
	private boolean isCanceled() {
	return (fProgressMonitor == null) ? false : fProgressMonitor.isCanceled();
	}

	/**
	* Reinitialize some fields
	*/
	private void reset() {
	scriptOffset = 0;
	// reset progress monitor
	if (fProgressMonitor != null) {
	fProgressMonitor.setCanceled(false);
	}
	fScriptText = new StringBuffer();
	fResult = null;
	fCurrentNode = null;
	fJsToHTMLRanges.clear();
	fHtmlTextBuffer = new StringBuffer();
	rawImports.clear();
	importLocationsInHtml.clear();
	}

	public ArrayList getImportHtmlRanges() {
	return importLocationsInHtml;
	}

	/**
	* So that the JSPTranslator can be reused.
	*/
	public void reset(IDOMNode node, IProgressMonitor progress) {
	// initialize some things on node
	configure(node, progress);
	reset();
	// set the jsp text buffer
	fHtmlTextBuffer.append(fStructuredDocument==null?"":fStructuredDocument.get());
	}


	public void setClassname(String classname) {
	this.fClassname = classname;
	}

	private IStructuredDocumentRegion setCurrentNode(IStructuredDocumentRegion currentNode) {
	return this.fCurrentNode = currentNode;
	}


	public void translate() {
	setCurrentNode(fStructuredDocument.getFirstStructuredDocumentRegion());
	while (getCurrentNode() != null && !isCanceled()) {
	// System.out.println("Translator Looking at Node
	// type:"+getCurrentNode().getType()+"---------------------------------:");
	// System.out.println(new NodeHelper(getCurrentNode()));
	// i.println("/---------------------------------------------------");
	if (getCurrentNode().getType() == DOMRegionContext.XML_TAG_NAME) {
	NodeHelper nh = new NodeHelper(getCurrentNode());
	if ((!nh.isEndTag() \|\| nh.isSelfClosingTag()) && nh.nameEquals("script")) {
	/*
	* Handles the following cases: <script
	* type="javascriptype"> <script language="javascriptype>
	* <script src='' type=javascriptype> <script src=''
	* language=javascripttype <script src=''> global js type.
	* <script> (global js type)
	*/
	if (NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("type")) \|\| NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("language")) \|\| isGlobalJs) {
	if (nh.containsAttribute(new String[] { "src" })) {
	// Handle import
	translateScriptImportNode(getCurrentNode());
	}
	// } else {
	// handle script section
	if (getCurrentNode().getNext() != null && getCurrentNode().getNext().getType() == DOMRegionContext.BLOCK_TEXT) {
	translateJSNode(getCurrentNode().getNext());
	}
	} // End search for <script> sections
	} else if (nh.containsAttribute(JsDataTypes.HTMLATREVENTS)) {
	/* Check for embeded JS events in any tags */
	translateInlineJSNode(getCurrentNode());
	} else if (nh.nameEquals("META") && nh.attrEquals("http-equiv", "Content-Script-Type") && nh.containsAttribute(new String[] { "content" })) {
	// <META http-equiv="Content-Script-Type" content="type">
	isGlobalJs = NodeHelper.isInArray(JsDataTypes.JSVALIDDATATYPES, nh.getAttributeValue("content"));
	} // End big if of JS types
	}
	if (getCurrentNode() != null) {
	advanceNextNode();
	}
	} // end while loop
	buildResult();
	}

	public void translateInlineJSNode(IStructuredDocumentRegion container) {
	// System.out
	// .println("JSPTranslator.translateInlineJSNode Entered
	// w/ScriptOffset:"
	// + scriptOffset);
	NodeHelper nh = new NodeHelper(container);
	// System.out.println("inline js node looking at:\n" + nh);
	/* start a function header.. will amend later */
	ITextRegionList t = container.getRegions();
	ITextRegion r;
	Iterator regionIterator = t.iterator();
	while (regionIterator.hasNext()) {
	r = (ITextRegion) regionIterator.next();
	if (r.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
	int start = r.getStart();
	int offset = r.getTextEnd();
	String tagAttrname = container.getText().substring(start, offset).trim();
	/*
	* Attribute values aren't case sensative, also make sure next
	* region is attrib value
	*/
	if (NodeHelper.isInArray(JsDataTypes.HTMLATREVENTS, tagAttrname)) {
	if (regionIterator.hasNext()) {
	regionIterator.next();
	}
	if (regionIterator.hasNext()) {
	r = ((ITextRegion) regionIterator.next());
	}
	if (r.getType() == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
	int valStartOffset = container.getStartOffset(r);
	// int valEndOffset = r.getTextEnd();
	String rawText = container.getText().substring(r.getStart(), r.getTextEnd());
	Position inScript = new Position(scriptOffset, rawText.length());
	/* Quoted text starts +1 and ends -1 char */
	Position inHtml = new Position(valStartOffset, rawText.length());
	/*
	* build the function. Addiotional function "baggage"
	* not of concern to editor
	*/
	fJsToHTMLRanges.put(inScript, inHtml);
	fScriptText.append(rawText);
	scriptOffset = fScriptText.length();
	if (JSPTranslator.DEBUG) {
	System.out.println("START-----------------JS Translator Script loop---------------");
	System.out.println("Translated to:\n" + rawText + "\n");
	System.out.println("HTML Position:[" + inHtml.getOffset() + "," + inHtml.getLength() + "]");
	System.out.println("Script Position:[" + inScript.getOffset() + "," + inScript.getLength() + "]");
	System.out.println("Added (js) Text length:" + rawText.length());
	System.out.println("END-----------------JS Translator Script loop---------------");
	}
	}
	}
	}
	}
	}

	public ArrayList getRawImports() {
	return this.rawImports;
	}

	public void translateJSNode(IStructuredDocumentRegion container) {
	ITextRegionCollection containerRegion = container;
	Iterator regions = containerRegion.getRegions().iterator();
	ITextRegion region = null;
	while (regions.hasNext()) {
	region = (ITextRegion) regions.next();
	String type = region.getType();
	// content assist was not showing up in JSP inside a javascript
	// region
	if (type == DOMRegionContext.BLOCK_TEXT) {
	int scriptStart = container.getStartOffset();
	int scriptTextEnd = container.getEndOffset() - container.getStartOffset();

	String regionText = container.getText().substring(region.getStart(), region.getEnd());
	int regionLength = regionText.length();
	Position inScript = new Position(scriptOffset, regionLength);
	Position inHtml = new Position(scriptStart, scriptTextEnd);
	if (JSPTranslator.DEBUG) {
	System.out.println("START-----------------JS Translator Script loop---------------");
	System.out.println("Container getStartOffset():" +
	container.getStartOffset());
	System.out.println("Container getEnd():" +
	container.getEnd());
	System.out.println("Container getEndOffset():" +
	container.getEndOffset());
	System.out.println("Container getType():" +
	container.getType());

	System.out.println("Region getStart():" + region.getStart());
	System.out.println("Region getEnd():" + region.getStart());
	System.out.println("Region getType():" + region.getType());
	System.out.println("Container Text Length:" +
	container.getText().length());

	System.out.println("Container Text:" + container.getText());

	System.out.println("Translated to:\n" + regionText + "\n");
	System.out.println("HTML Position:[" + inHtml.getOffset() + "," + inHtml.getLength() + "]");
	System.out.println("Script Position:[" + inScript.getOffset() + "," + inScript.getLength() + "]");
	System.out.println("END-----------------JS Translator Script loop---------------");
	//
	}
	fJsToHTMLRanges.put(inScript, inHtml);
	fScriptText.append(regionText);
	scriptOffset = fScriptText.length();
	}
	}
	}

	public void translateScriptImportNode(IStructuredDocumentRegion region) {
	NodeHelper nh = new NodeHelper(region);
	String importName = nh.getAttributeValue("src");

	if (importName != null && !importName.equals("")) {
	rawImports.add(importName);
	Position inHtml = new Position(region.getStartOffset(), region.getEndOffset());
	importLocationsInHtml.add(inHtml);

	}

	}

	}