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/**
* <copyright>
*
* Copyright (c) 2009 Springsite BV (The Netherlands) 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:
* Martin Taal - Initial API and implementation
*
* </copyright>
*
* $Id: GenerateORM.java,v 1.1 2009/03/23 19:01:40 mtaal Exp $
*/
package org.eclipse.emf.teneo.jpa;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Properties;
import org.eclipse.emf.teneo.PersistenceOptions;
import org.eclipse.emf.teneo.TeneoException;
import org.eclipse.emf.teneo.annotations.mapper.PersistenceMappingBuilder;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedModel;
import org.eclipse.emf.teneo.extension.ExtensionManager;
import org.eclipse.emf.teneo.extension.ExtensionManagerFactory;
import org.eclipse.emf.teneo.jpa.convert.ORMGenerator;
/**
* Class is responsible for generating the hbm file. Is run through a launcher
* therefore the main methods.
*
* @author <a href="mailto:mtaal@elver.org">Martin Taal</a>
* @version $Revision: 1.1 $
*/
public class GenerateORM {
/** Parses the args and generates a hbm file */
public static void main(String[] args) {
// decode the args
Properties options = new Properties();
ArrayList<String> ecores = new ArrayList<String>();
String targetFileName = null;
for (int i = 0; i < args.length; i++) {
if (i == 0) {
targetFileName = args[0];
} else if (args[i].startsWith("+")) { // option
final String[] keyValue = args[i].substring(1).split(",");
options.put(keyValue[0], keyValue[1]);
} else if (args[i].startsWith("-")) { // epackage classnames
final String[] epacks = args[i].substring(1).split(",");
// the epackages load them all, hope for the best
// when loading the epackage should be loaded
for (String element : epacks) {
try {
Class.forName(element);
} catch (Throwable t) { // ignore everything but show
// something
t.printStackTrace(System.err);
}
}
} else {
ecores.add(args[i]);
}
}
createORMapperFile(targetFileName, ecores.toArray(new String[ecores
.size()]), options);
}
/** Creates the mapping file */
private static void createORMapperFile(String targetFileName,
String[] ecores, Properties options) {
try {
// get the first ecore file
File firstEcore = new File(ecores[0]);
File file = new File(firstEcore.getParentFile(), targetFileName);
final File archiveFile = new File(firstEcore.getParentFile(),
targetFileName + "_old");
if (file.exists()) {
if (archiveFile.exists()) {
archiveFile.delete();
}
copyFile(file, archiveFile);
file.delete();
}
file.createNewFile();
final ExtensionManager extensionManager = ExtensionManagerFactory
.getInstance().create();
final ORMGenerator converter = new ORMGenerator();
final PersistenceOptions po = converter
.getDefaultPersistenceOptions(options);
final PAnnotatedModel paModel = extensionManager.getExtension(
PersistenceMappingBuilder.class).buildMapping(ecores, po,
extensionManager);
final String orm = converter.generateORM(paModel.getPaEPackages(),
po);
FileWriter writer = new FileWriter(file);
writer.write(orm);
writer.flush();
} catch (IOException e) {
throw new TeneoException(
"IOException when creating or mapping file", e);
}
}
/** Copies a file */
public static void copyFile(File src, File dst) throws IOException {
if (!dst.exists()) {
dst.createNewFile();
}
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
}
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