DeploymentScriptNewWizard.java

/******************************************************************************
 * Copyright (c) 2009-2013, Linagora
 *
 * 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:
 * 		Linagora - initial API and implementation
 *******************************************************************************/
 
package com.ebmwebsourcing.petals.common.internal.wizards;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.ui.INewWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
import org.eclipse.ui.ide.IDE;

import com.ebmwebsourcing.petals.common.internal.Messages;
import com.ebmwebsourcing.petals.common.internal.PetalsCommonPlugin;
import com.ebmwebsourcing.petals.common.internal.provisional.utils.IoUtils;
import com.ebmwebsourcing.petals.common.internal.provisional.utils.ResourceUtils;

/**
 * A wizard to create a sample ANT task to deploy things to Petals.
 * @author Vincent Zurczak - EBM WebSourcing
 */
public class DeploymentScriptNewWizard extends Wizard implements INewWizard {

	/** The unique page of the wizard. */
	private WizardNewFileCreationPage page;

	/** The initial selection. */
	private IStructuredSelection selection;

	/** The workbench. */
	private IWorkbench workbench;


	/**
	 * Constructor.
	 */
	public DeploymentScriptNewWizard() {
		super();
		setWindowTitle( "New Deployment Script (ANT)" );
		setNeedsProgressMonitor( true );

		ImageDescriptor desc = PetalsCommonPlugin.getImageDescriptor( "icons/wizban/ant_wiz.png" ); //$NON-NLS-1$
		setDefaultPageImageDescriptor( desc );
	}


	/*
	 * (non-Javadoc)
	 * @see org.eclipse.jface.wizard.Wizard#addPages()
	 */
	@Override
	public void addPages() {
		this.page = new WizardNewFileCreationPage( "MainPage", this.selection ); //$NON-NLS-1$
		this.page.setFileName( "build.xml" );
		this.page.setFileExtension( "xml" );
		this.page.setTitle( "Deployment Script (ANT)" );
		this.page.setDescription( "Define the location of the ANT script to create." );
		addPage( this.page );
	}


	/*
	 * (non-Javadoc)
	 * @see org.eclipse.jface.wizard.Wizard#performFinish()
	 */
	@Override
	public boolean performFinish() {

		// Prepare the creation
		String content;
		InputStream in = getClass().getResourceAsStream( "SampleBuild.xml_" );
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		try {
			IoUtils.copyStream( in, os );
			content = os.toString( "UTF-8" );

		} catch( IOException e1 ) {
			content = "";

		} finally {
			try {
				in.close();
			} catch( IOException e ) {
				// nothing
			}
		}

		File libFolder = ResourceUtils.getPluginBinaryPath( "com.ebmwebsourcing.petals.libs.esb", "libs-ant-p4" );
		if( libFolder != null )
			content = content.replace( "${ANT_LIBS_PATH}", libFolder.getAbsolutePath());


		// Create the file
		final StringBuilder sb = new StringBuilder( content );
		final IFile createdFile = this.page.createNewFile();
		WorkspaceModifyOperation op = new WorkspaceModifyOperation() {
			@Override
			protected void execute( IProgressMonitor monitor )
			throws CoreException, InvocationTargetException, InterruptedException {

				try {
					monitor.beginTask( "Creating the content...", IProgressMonitor.UNKNOWN );
					InputStream in = new ByteArrayInputStream( sb.toString().getBytes());
					if( createdFile.exists())
						createdFile.setContents( in, true, true, monitor );
					else
						createdFile.create( in, true, monitor );

				} catch( Exception e ) {
					throw new InvocationTargetException( e );

				} finally {
					monitor.done();
				}
			}
		};

		try {
			getContainer().run( true, false, op );
			ResourceUtils.selectResourceInJavaView( true, createdFile );
			IDE.openEditor( this.workbench.getActiveWorkbenchWindow().getActivePage(), createdFile );

		} catch( InterruptedException e ) {
			// nothing

		} catch( Exception exception ) {
			MessageDialog.openError(
					this.workbench.getActiveWorkbenchWindow().getShell(),
					Messages.NewJbiXmlWizard_0,
					exception.getMessage());
		}

		return true;
	}


	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.IWorkbenchWizard
	 * #init(org.eclipse.ui.IWorkbench, org.eclipse.jface.viewers.IStructuredSelection)
	 */
	@Override
	public void init( IWorkbench workbench, IStructuredSelection selection ) {
		this.selection = selection;
		this.workbench = workbench;
	}
}