tools/etfw/org.eclipse.ptp.etfw.feedback/src/org/eclipse/ptp/etfw/feedback/actions/handlers/ShowFeedbackHandler.java - ptp/org.eclipse.ptp - Git at Google

 /**********************************************************************
  * Copyright (c) 2009,2010 IBM Corporation.
  * 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.ptp.etfw.feedback.actions.handlers;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Iterator;
 import java.util.List;

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;

 import org.eclipse.core.commands.AbstractHandler;
 import org.eclipse.core.commands.ExecutionEvent;
 import org.eclipse.core.commands.ExecutionException;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IConfigurationElement;
 import org.eclipse.core.runtime.IExtension;
 import org.eclipse.core.runtime.IExtensionPoint;
 import org.eclipse.core.runtime.IExtensionRegistry;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.ptp.etfw.feedback.Activator;
 import org.eclipse.ptp.etfw.feedback.obj.IFeedbackItem;
 import org.eclipse.ptp.etfw.feedback.obj.IFeedbackParser;
 import org.eclipse.ptp.etfw.feedback.util.ViewActivator;
 import org.eclipse.ui.handlers.HandlerUtil;
 import org.w3c.dom.Document;
 import org.w3c.dom.Node;
 import org.xml.sax.SAXException;

 /**
  * Our sample handler extends AbstractHandler, an IHandler base class.
  * @see org.eclipse.core.commands.IHandler
  * @see org.eclipse.core.commands.AbstractHandler
  *
  * <p>
  * <strong>EXPERIMENTAL</strong>. This class or interface has been added as part
  * of a work in progress. There is no guarantee that this API will work or that
  * it will remain the same. We do not recommending using this API without consulting with
  * the etfw.feedback team.
  */
 public class ShowFeedbackHandler extends AbstractHandler {
 	private static final String ATTR_NAME = "name"; //$NON-NLS-1$
 	private static final String ATTR_CLASSNAME = "class"; //$NON-NLS-1$
 	private IStructuredSelection selection=null;
 	private static final boolean traceOn=false;
 	/**
 	 * The constructor.
 	 */
 	public ShowFeedbackHandler() {
 	}

 	/**
 	 * The command has been executed, so extract extract the needed information
 	 * from the application context.
 	 * @return the result of the execution. Reserved for future use, must be
 	 *         <code>null</code>.
 	 */
 	public Object execute(ExecutionEvent event) throws ExecutionException {
 		IStructuredSelection sel=getSelection(event);
 		IFeedbackParser parser=null;
 		// iterate over multiple selections.  Note we do NOT descend e.g. into folders.
 		for (Iterator<IResource> it = sel.iterator(); it.hasNext();) {
 			IResource obj = it.next();
 			if (obj instanceof IFile) {
 				IFile file = (IFile) obj;
 				if(traceOn)System.out.println("selected: "+file); //$NON-NLS-1$
 				String name = file.getName();
 				IPath path = file.getLocation();
 				if(traceOn)System.out.println("Selected: " + name); //$NON-NLS-1$
 				if (name.endsWith(".xml")) { //$NON-NLS-1$
 					File jfile = path.toFile();
 					parser = findFeedbackParser(jfile );
 					List<IFeedbackItem> items=parser.getFeedbackItems(jfile);
 					parser.createMarkers(items,parser.getMarkerID());
 				}
 			}
 		}
 		// show view only after all files have been processed.
 		if (parser != null) {
 			ViewActivator.activateView(parser.getViewID());
 		}
 		return null;
 	}

 	/**
 	 * Find the eclipse extension that is registered
 	 * to handle reports of the type indicated by the root node element
 	 * of the given xml file.  Return its IFeedbackParser.
 	 * @param jfile
 	 */
 	private IFeedbackParser findFeedbackParser(File file) {

 			InputStream xmlIn;
 			try {
 				xmlIn = new FileInputStream(file);
 			} catch (FileNotFoundException e1) {
 				System.out.println("File not found: "+file.getAbsolutePath()); //$NON-NLS-1$
 				return null;
 			}
 			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 			Document document = null;
 			try {
 				DocumentBuilder builder = factory.newDocumentBuilder();
 				if (xmlIn != null)
 					document = builder.parse(xmlIn);
 			} catch (ParserConfigurationException e) {
 				e.printStackTrace();
 			} catch (SAXException e) {
 				e.printStackTrace();
 			} catch (IOException e) {
 				//e.printStackTrace();
 				System.out.println("TransformDocXMLParser IOException: "+e.getMessage()); //$NON-NLS-1$
 			}
 			Node node = document.getFirstChild();
 			String rootNode=node.getNodeName();

 			// first node might be xml version info or stylesheet info
 			if(rootNode.equals("xml") || (rootNode.equals("xml-stylesheet"))) { //$NON-NLS-1$ //$NON-NLS-2$
 				Node next = node.getNextSibling();
 				node=next;
 				rootNode=node.getNodeName();
 			}
 			// 1. find the extensions
 			// 2. find one that matches nodeName in its id
 			// 3. instantiate the class of parser or whatever that knows
 			//       how to read this type
 			final String pid=Activator.PLUGIN_ID;
 			final String extid=Activator.FEEDBACK_EXTENSION_ID;
 			IExtension[] extensions = Platform.getExtensionRegistry().getExtensionPoint(pid, extid).getExtensions();
 			for (int i = 0; i < extensions.length; i++) {
 				IExtension extn=extensions[i];
 				String extLabel=extn.getLabel();
 				if(traceOn)System.out.println("Found extension for "+extLabel+ "  id="+extn.getUniqueIdentifier()); //$NON-NLS-1$ //$NON-NLS-2$
 				IConfigurationElement[] configElements =
 					extensions[i].getConfigurationElements();
 				for (int j = 0; j < configElements.length; j++) {
 					IConfigurationElement ice= configElements[j];
 					// from this thing we should be able to make the specific
 					// parts that we need.
 					// specifically: something that can parse this file and return
 					// things that implement the IFeedbackItem interface.
 					if(traceOn)System.out.println(ice.getAttributeNames());
 					String nodeName=ice.getAttribute("nodeName"); //$NON-NLS-1$

 					if(rootNode.equals(nodeName)) {
 						// we found a match!
 						if(traceOn)System.out.println("match! "+rootNode); //$NON-NLS-1$
 						String className = ice.getAttribute(ATTR_CLASSNAME);
 						String name=ice.getAttribute(ATTR_NAME);
 						if(traceOn)System.out.println("class="+className+"   name="+name); //$NON-NLS-1$ //$NON-NLS-2$
 						Object obj=null;
 						try {
 							obj=ice.createExecutableExtension(ATTR_CLASSNAME);
 							if(obj instanceof IFeedbackParser) {
 								IFeedbackParser fp= (IFeedbackParser)obj;
 								return fp;
 							}
 						} catch (CoreException e) {
 							System.out.println("Failed to create class "+className); //$NON-NLS-1$
 							e.printStackTrace();
 						}
 					}

 				}
 			}
 			return null;


 	}

 	/**
 	 * Get the current selection from the handler event. If it's a structured selection
 	 * (e.g. resource in the project explorer) then return it.
 	 * If it's e.g. a text selection in the editor, we don't care about that
 	 *
 	 * Note that we  cache the last structured selection (like the previous "action" version
 	 * of this class) since we don't get selection changed events.
 	 * However, AnalysisDropDownHandler does get these events, and its value
 	 * will be used if HanderUtil doesn't have any information yet.
 	 *
 	 * @param event
 	 * @return the current selection if it's a structured selection e.g. in the navigator
 	 */
 	public IStructuredSelection getSelection(ExecutionEvent event) {
 		ISelection curSel = HandlerUtil.getCurrentSelection(event);
 		if (curSel instanceof IStructuredSelection) {
 			selection = (IStructuredSelection) curSel;
 		}else {
 			System.out.println("no selection."); //$NON-NLS-1$
 		}

 		return selection;

 	}
 }
	/**********************************************************************
	* Copyright (c) 2009,2010 IBM Corporation.
	* 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.ptp.etfw.feedback.actions.handlers;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.io.InputStream;
	import java.util.Iterator;
	import java.util.List;

	import javax.xml.parsers.DocumentBuilder;
	import javax.xml.parsers.DocumentBuilderFactory;
	import javax.xml.parsers.ParserConfigurationException;

	import org.eclipse.core.commands.AbstractHandler;
	import org.eclipse.core.commands.ExecutionEvent;
	import org.eclipse.core.commands.ExecutionException;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IConfigurationElement;
	import org.eclipse.core.runtime.IExtension;
	import org.eclipse.core.runtime.IExtensionPoint;
	import org.eclipse.core.runtime.IExtensionRegistry;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.ptp.etfw.feedback.Activator;
	import org.eclipse.ptp.etfw.feedback.obj.IFeedbackItem;
	import org.eclipse.ptp.etfw.feedback.obj.IFeedbackParser;
	import org.eclipse.ptp.etfw.feedback.util.ViewActivator;
	import org.eclipse.ui.handlers.HandlerUtil;
	import org.w3c.dom.Document;
	import org.w3c.dom.Node;
	import org.xml.sax.SAXException;

	/**
	* Our sample handler extends AbstractHandler, an IHandler base class.
	* @see org.eclipse.core.commands.IHandler
	* @see org.eclipse.core.commands.AbstractHandler
	*
	* <p>
	* <strong>EXPERIMENTAL</strong>. This class or interface has been added as part
	* of a work in progress. There is no guarantee that this API will work or that
	* it will remain the same. We do not recommending using this API without consulting with
	* the etfw.feedback team.
	*/
	public class ShowFeedbackHandler extends AbstractHandler {
	private static final String ATTR_NAME = "name"; //$NON-NLS-1$
	private static final String ATTR_CLASSNAME = "class"; //$NON-NLS-1$
	private IStructuredSelection selection=null;
	private static final boolean traceOn=false;
	/**
	* The constructor.
	*/
	public ShowFeedbackHandler() {
	}

	/**
	* The command has been executed, so extract extract the needed information
	* from the application context.
	* @return the result of the execution. Reserved for future use, must be
	* <code>null</code>.
	*/
	public Object execute(ExecutionEvent event) throws ExecutionException {
	IStructuredSelection sel=getSelection(event);
	IFeedbackParser parser=null;
	// iterate over multiple selections. Note we do NOT descend e.g. into folders.
	for (Iterator<IResource> it = sel.iterator(); it.hasNext();) {
	IResource obj = it.next();
	if (obj instanceof IFile) {
	IFile file = (IFile) obj;
	if(traceOn)System.out.println("selected: "+file); //$NON-NLS-1$
	String name = file.getName();
	IPath path = file.getLocation();
	if(traceOn)System.out.println("Selected: " + name); //$NON-NLS-1$
	if (name.endsWith(".xml")) { //$NON-NLS-1$
	File jfile = path.toFile();
	parser = findFeedbackParser(jfile );
	List<IFeedbackItem> items=parser.getFeedbackItems(jfile);
	parser.createMarkers(items,parser.getMarkerID());
	}
	}
	}
	// show view only after all files have been processed.
	if (parser != null) {
	ViewActivator.activateView(parser.getViewID());
	}
	return null;
	}

	/**
	* Find the eclipse extension that is registered
	* to handle reports of the type indicated by the root node element
	* of the given xml file. Return its IFeedbackParser.
	* @param jfile
	*/
	private IFeedbackParser findFeedbackParser(File file) {

	InputStream xmlIn;
	try {
	xmlIn = new FileInputStream(file);
	} catch (FileNotFoundException e1) {
	System.out.println("File not found: "+file.getAbsolutePath()); //$NON-NLS-1$
	return null;
	}
	DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
	Document document = null;
	try {
	DocumentBuilder builder = factory.newDocumentBuilder();
	if (xmlIn != null)
	document = builder.parse(xmlIn);
	} catch (ParserConfigurationException e) {
	e.printStackTrace();
	} catch (SAXException e) {
	e.printStackTrace();
	} catch (IOException e) {
	//e.printStackTrace();
	System.out.println("TransformDocXMLParser IOException: "+e.getMessage()); //$NON-NLS-1$
	}
	Node node = document.getFirstChild();
	String rootNode=node.getNodeName();

	// first node might be xml version info or stylesheet info
	if(rootNode.equals("xml") \|\| (rootNode.equals("xml-stylesheet"))) { //$NON-NLS-1$ //$NON-NLS-2$
	Node next = node.getNextSibling();
	node=next;
	rootNode=node.getNodeName();
	}
	// 1. find the extensions
	// 2. find one that matches nodeName in its id
	// 3. instantiate the class of parser or whatever that knows
	// how to read this type
	final String pid=Activator.PLUGIN_ID;
	final String extid=Activator.FEEDBACK_EXTENSION_ID;
	IExtension[] extensions = Platform.getExtensionRegistry().getExtensionPoint(pid, extid).getExtensions();
	for (int i = 0; i < extensions.length; i++) {
	IExtension extn=extensions[i];
	String extLabel=extn.getLabel();
	if(traceOn)System.out.println("Found extension for "+extLabel+ " id="+extn.getUniqueIdentifier()); //$NON-NLS-1$ //$NON-NLS-2$
	IConfigurationElement[] configElements =
	extensions[i].getConfigurationElements();
	for (int j = 0; j < configElements.length; j++) {
	IConfigurationElement ice= configElements[j];
	// from this thing we should be able to make the specific
	// parts that we need.
	// specifically: something that can parse this file and return
	// things that implement the IFeedbackItem interface.
	if(traceOn)System.out.println(ice.getAttributeNames());
	String nodeName=ice.getAttribute("nodeName"); //$NON-NLS-1$

	if(rootNode.equals(nodeName)) {
	// we found a match!
	if(traceOn)System.out.println("match! "+rootNode); //$NON-NLS-1$
	String className = ice.getAttribute(ATTR_CLASSNAME);
	String name=ice.getAttribute(ATTR_NAME);
	if(traceOn)System.out.println("class="+className+" name="+name); //$NON-NLS-1$ //$NON-NLS-2$
	Object obj=null;
	try {
	obj=ice.createExecutableExtension(ATTR_CLASSNAME);
	if(obj instanceof IFeedbackParser) {
	IFeedbackParser fp= (IFeedbackParser)obj;
	return fp;
	}
	} catch (CoreException e) {
	System.out.println("Failed to create class "+className); //$NON-NLS-1$
	e.printStackTrace();
	}
	}

	}
	}
	return null;



	}

	/**
	* Get the current selection from the handler event. If it's a structured selection
	* (e.g. resource in the project explorer) then return it.
	* If it's e.g. a text selection in the editor, we don't care about that
	*
	* Note that we cache the last structured selection (like the previous "action" version
	* of this class) since we don't get selection changed events.
	* However, AnalysisDropDownHandler does get these events, and its value
	* will be used if HanderUtil doesn't have any information yet.
	*
	* @param event
	* @return the current selection if it's a structured selection e.g. in the navigator
	*/
	public IStructuredSelection getSelection(ExecutionEvent event) {
	ISelection curSel = HandlerUtil.getCurrentSelection(event);
	if (curSel instanceof IStructuredSelection) {
	selection = (IStructuredSelection) curSel;
	}else {
	System.out.println("no selection."); //$NON-NLS-1$
	}

	return selection;

	}
	}