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/*******************************************************************************
* Copyright (c) 2008, 2009 IBM Corporation 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: IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.simpleconfigurator.manipulator;
import java.io.*;
import java.net.URI;
import java.util.Arrays;
import java.util.Comparator;
import org.eclipse.equinox.internal.frameworkadmin.equinox.Messages;
import org.eclipse.equinox.internal.frameworkadmin.utils.Utils;
import org.eclipse.equinox.internal.simpleconfigurator.utils.BundleInfo;
import org.eclipse.equinox.simpleconfigurator.manipulator.SimpleConfiguratorManipulator;
import org.osgi.framework.Version;
public class SimpleConfiguratorManipulatorUtils {
private static final String VERSION_PREFIX = "#version="; //$NON-NLS-1$
private static final String VERSION_1 = "1"; //$NON-NLS-1$
private static final Version OLD_STYLE_SIMPLE_CONFIGURATOR_VERSION = new Version("1.0.100.v20081206"); //$NON-NLS-1$
public static void writeConfiguration(BundleInfo[] simpleInfos, File outputFile) throws IOException {
if (!Utils.createParentDir(outputFile)) {
throw new IllegalStateException(Messages.exception_failedToCreateDir);
}
IOException caughtException = null;
OutputStream stream = null;
try {
stream = new FileOutputStream(outputFile);
writeConfiguration(simpleInfos, stream);
} catch (IOException e) {
caughtException = e;
} finally {
try {
if (stream != null)
stream.close();
} catch (IOException e) {
// we want to avoid over-writing the original exception
if (caughtException != null)
caughtException = e;
}
}
if (caughtException != null)
throw caughtException;
}
/**
* The output stream is left open
* @param simpleInfos
* @param stream
* @throws IOException
*/
public static void writeConfiguration(BundleInfo[] simpleInfos, OutputStream stream) throws IOException {
// sort by symbolic name
Arrays.sort(simpleInfos, new Comparator() {
public int compare(Object o1, Object o2) {
if (o1 instanceof BundleInfo && o2 instanceof BundleInfo) {
return ((BundleInfo) o1).getSymbolicName().compareTo(((BundleInfo) o2).getSymbolicName());
}
return 0;
}
});
BufferedWriter writer = null;
boolean oldStyle = false;
for (int i = 0; i < simpleInfos.length; i++) {
if (SimpleConfiguratorManipulator.SERVICE_PROP_VALUE_CONFIGURATOR_SYMBOLICNAME.equals(simpleInfos[i].getSymbolicName())) {
Version version = new Version(simpleInfos[i].getVersion());
if (version.compareTo(OLD_STYLE_SIMPLE_CONFIGURATOR_VERSION) < 0)
oldStyle = true;
break;
}
}
writer = new BufferedWriter(new OutputStreamWriter(stream));
// version line
writer.write(createVersionLine());
writer.newLine();
// bundle info lines
for (int i = 0; i < simpleInfos.length; i++) {
writer.write(createBundleInfoLine(simpleInfos[i], oldStyle));
writer.newLine();
}
writer.flush();
}
public static String createVersionLine() {
return VERSION_PREFIX + VERSION_1;
}
public static String createBundleInfoLine(BundleInfo bundleInfo, boolean oldStyle) {
// symbolicName,version,location,startLevel,markedAsStarted
StringBuffer buffer = new StringBuffer();
buffer.append(bundleInfo.getSymbolicName());
buffer.append(',');
buffer.append(bundleInfo.getVersion());
buffer.append(',');
buffer.append(createBundleLocation(bundleInfo.getLocation(), oldStyle));
buffer.append(',');
buffer.append(bundleInfo.getStartLevel());
buffer.append(',');
buffer.append(bundleInfo.isMarkedAsStarted());
return buffer.toString();
}
public static String createBundleLocation(URI location, boolean oldStyle) {
if (oldStyle) {
String scheme = location.getScheme();
if (scheme == null)
scheme = "file"; //$NON-NLS-1$
return scheme + ':' + location.getSchemeSpecificPart();
}
//encode comma characters because it is used as the segment delimiter in the bundle info file
String result = location.toString();
int commaIndex = result.indexOf(',');
while (commaIndex != -1) {
result = result.substring(0, commaIndex) + "%2C" + result.substring(commaIndex + 1); //$NON-NLS-1$
commaIndex = result.indexOf(',');
}
return result;
}
}
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