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/**
* <copyright>
*
* Copyright (c) 2005, 2006, 2007 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
* Davide Marchignoli
* </copyright>
*
* $Id: GenerateHBM.java,v 1.2 2007/02/01 12:35:55 mtaal Exp $
*/
package org.eclipse.emf.teneo.hibernate.mapper;
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.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.teneo.PersistenceOptions;
import org.eclipse.emf.teneo.StoreException;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedModel;
import org.eclipse.emf.teneo.hibernate.hbannotation.util.MappingBuilder;
/**
* 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: 1.2 $
*/
public class GenerateHBM {
/** The logger for this class */
private static Log log = LogFactory.getLog(GenerateHBM.class);
/** Parses the args and generates a jdo file */
public static void main(String[] args) {
// decode the args
Properties options = new Properties();
ArrayList ecores = new ArrayList();
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 (int p = 0; p < epacks.length; p++) {
try {
log.debug("Loading class " + epacks[p] + " should be an epackage");
Class epack = Class.forName(epacks[p]);
if (!EPackage.class.isAssignableFrom(epack)) {
log.warn("JDO generator found " + epack.getName()
+ " but this is not an EPackage, ignoring it");
}
} catch (Throwable t) { // ignore everything but log it
log.error("Exception while instantiating " + epacks[p] + ", message: " + t.getMessage());
}
}
} else {
ecores.add(args[i]);
}
}
createORMapperFile(targetFileName, (String[]) 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 PersistenceOptions po = new PersistenceOptions(options);
PAnnotatedModel paModel = MappingBuilder.INSTANCE.buildMapping(ecores, po);
HibernateMappingGenerator hmg = new HibernateMappingGenerator(po);
FileWriter writer = new FileWriter(file);
writer.write(hmg.generateToString(paModel));
writer.flush();
} catch (IOException e) {
e.printStackTrace(System.err);
log.error(e);
throw new StoreException("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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