/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.cdt.debug.cw.symbian.breakpointactions;

import java.io.ByteArrayOutputStream;

import java.io.StringReader;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.transform.OutputKeys;

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamResult;

import org.eclipse.cdt.debug.core.breakpointactions.AbstractBreakpointAction;

import org.eclipse.cdt.debug.core.breakpointactions.IResumeActionEnabler;

import org.eclipse.cdt.debug.core.cdi.model.ICDIThread;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Status;

import org.eclipse.debug.core.model.IBreakpoint;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.xml.sax.InputSource;

import org.xml.sax.helpers.DefaultHandler;

import com.freescale.cdt.debug.cw.core.cdi.model.Thread;

public class SkipAction extends AbstractBreakpointAction {

	private int statements = 1;

	public IStatus execute(IBreakpoint breakpoint, IAdaptable context, IProgressMonitor monitor) {

		IStatus result = Status.OK_STATUS;

		ICDIThread cdiThread = (ICDIThread) context.getAdapter(ICDIThread.class);

		if (cdiThread != null && cdiThread instanceof Thread)

		{

			Thread cwThread = (Thread) cdiThread;

			int statementCount = statements;

			while (statementCount-- > 0) {

				cwThread.getCWThread().SkipCurrentLine(true); // only skip source statements for now				

			}			

			IResumeActionEnabler resumeEnabler = (IResumeActionEnabler) context.getAdapter(IResumeActionEnabler.class);

			try {

				resumeEnabler.resume();

			} catch (Exception e) { e.printStackTrace(); }

		}

		return result;

	}

	public String getDefaultName() {

		return "Skip Action";

	}

	public String getIdentifier() {

		return "com.nokia.cdt.debug.cw.symbian.breakpointactions.SkipAction"; //$NON-NLS-1$

	}

	public String getMemento() {

		String logData = new String(""); //$NON-NLS-1$

		DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();

		DocumentBuilder docBuilder = null;

		try {

			docBuilder = dfactory.newDocumentBuilder();

			Document doc = docBuilder.newDocument();

			Element rootElement = doc.createElement("skipData"); //$NON-NLS-1$

			rootElement.setAttribute("statements", Integer.toString(statements)); //$NON-NLS-1$

			doc.appendChild(rootElement);

			ByteArrayOutputStream s = new ByteArrayOutputStream();

			TransformerFactory factory = TransformerFactory.newInstance();

			Transformer transformer = factory.newTransformer();

			transformer.setOutputProperty(OutputKeys.METHOD, "xml"); //$NON-NLS-1$

			transformer.setOutputProperty(OutputKeys.INDENT, "yes"); //$NON-NLS-1$

			DOMSource source = new DOMSource(doc);

			StreamResult outputTarget = new StreamResult(s);

			transformer.transform(source, outputTarget);

			logData = s.toString("UTF8"); //$NON-NLS-1$

		} catch (Exception e) {

			e.printStackTrace();

		}

		return logData;

	}

	public String getSummary() {

		return "Skip " + statements + " statements";

	}

	public String getTypeName() {

		return "Skip Action";

	}

	public void initializeFromMemento(String data) {

		Element root = null;

		DocumentBuilder parser;

		try {

			parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();

			parser.setErrorHandler(new DefaultHandler());

			root = parser.parse(new InputSource(new StringReader(data))).getDocumentElement();

			String value = root.getAttribute("statements"); //$NON-NLS-1$

			if (value == null)

				throw new Exception();

			statements = Integer.valueOf(value).intValue();

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

	public int getStatements() {

		return statements;

	}

}