deployedjadwriter.java

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/**
 * Copyright (c) 2003-2007 Craig Setera
 * All Rights Reserved.
 * Licensed under the Eclipse Public License - v 1.0
 * For more information see http://www.eclipse.org/legal/epl-v10.html
 */
package eclipseme.core.internal.packaging;

import java.io.File;
import java.io.IOException;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;

import eclipseme.core.internal.signing.SignatureUtils;
import eclipseme.core.internal.utils.ColonDelimitedProperties;
import eclipseme.core.model.ApplicationDescriptor;
import eclipseme.core.model.IJADConstants;
import eclipseme.core.model.IJadSignature;
import eclipseme.core.model.IMidletSuiteProject;

/**
 * A helper class that is used to create a JAD file representing the deployed
 * JAR file.
 * <p />
 * Copyright (c) 2003-2007 Craig Setera<br>
 * All Rights Reserved.<br>
 * Licensed under the Eclipse Public License - v 1.0<p/>
 * <br>
 * $Revision$
 * <br>
 * $Date$
 * <br>
 * @author Craig Setera
 */
public class DeployedJADWriter {
	private IMidletSuiteProject midletSuite;
	private IFolder deploymentFolder;
	private File deployedJarFile;
	
	/**
	 * Construct a new JAD Writer to handle the specified deployment.
	 */
	public DeployedJADWriter(IMidletSuiteProject midletSuite, IFolder deploymentFolder, File deployedJar) {
		super();
		this.midletSuite = midletSuite;
		this.deploymentFolder = deploymentFolder;
		this.deployedJarFile = deployedJar;
	}
	
	/**
	 * Write out a deployed JAD file for the previously created JAR file.
	 * 
	 * @param incrementalBuild 
	 * @param monitor
	 * @throws IOException
	 * @throws CoreException
	 */
	public void writeDeployedJAD(boolean incrementalBuild, IProgressMonitor monitor) 
		throws IOException, CoreException 
	{
		// Read the source jad file and update the jar file
		// length property.
		ApplicationDescriptor appDescriptor = midletSuite.getApplicationDescriptor();
		ColonDelimitedProperties jadProperties = appDescriptor.getManifestProperties();
		
		// Update the size of the jar file
		jadProperties.setProperty(
			IJADConstants.JAD_MIDLET_JAR_SIZE,
			(new Long(deployedJarFile.length())).toString());
		
		// If requested, we overwrite the JAD URL such that it is just the
		// name of the jar file.  This is for runtime handling.
		if (incrementalBuild) {
			jadProperties.setProperty(IJADConstants.JAD_MIDLET_JAR_URL, deployedJarFile.getName());
		}
		
		// write the JAD file in case signing blows up - at least we'll have
		// something non-bogus.
		writeJad(appDescriptor);
		
		if (!incrementalBuild) {
			// Retrieve the signature object for this project.  This will be null
			// if we're not supposed to sign this project.
			IJadSignature signatureObject = SignatureUtils.getSignatureObject(midletSuite);
			if (signatureObject != null)
			{
				signJad(signatureObject, deployedJarFile, jadProperties);
				writeJad(appDescriptor);
			}
		}
	}

	/**
	 * Sign the JAR file associated with the project and add the signature
	 * properties to the JAD file.
	 * 
	 * @param signatureObject	IJadSignature object that will do the actual signing
	 * @param deployedJarFile	File referencing the JAR file to be signed
	 * @param jadProperties		Contents of the JAD file to be added to
	 * 
	 * @throws CoreException
	 */
	private void signJad(IJadSignature signatureObject, File deployedJarFile, ColonDelimitedProperties jadProperties)
		throws CoreException
	{
		signatureObject.computeSignature(deployedJarFile);
		
		jadProperties.setProperty(IJADConstants.JAD_MIDLET_JAR_RSA_SHA1,
									signatureObject.getJarSignatureString());
		
		String[] certificates = signatureObject.getCertificateStrings();
		for (int i = 1; i <= certificates.length; i++)
		{
			jadProperties.setProperty(IJADConstants.JAD_MIDLET_CERTIFICATE + i,
					certificates[i-1]);
		}
	}

	/**
	 * Write the application descriptor out to the deployed location.
	 * 
	 * @param appDescriptor
	 * @throws IOException
	 */
	private void writeJad(ApplicationDescriptor appDescriptor) 
		throws IOException 
	{
		IFile deployedJadFile = deploymentFolder.getFile(midletSuite.getJadFile().getName());
		appDescriptor.store(deployedJadFile.getLocation().toFile());
	}
}