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/*******************************************************************************
* Copyright (c) 2008 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.utils.Utils;
import org.eclipse.equinox.internal.simpleconfigurator.utils.BundleInfo;
import org.osgi.framework.Version;
public class SimpleConfiguratorManipulatorUtils {
private static final String VERSION_PREFIX = "#version=";
private static final String VERSION_1 = "1";
private static final Version OLD_STYLE_SIMPLE_CONFIGURATOR_VERSION = new Version("1.0.100.v20081206");
public static void writeConfiguration(BundleInfo[] simpleInfos, File outputFile) throws IOException {
// if empty remove the configuration file
if (simpleInfos == null || simpleInfos.length == 0) {
if (outputFile.exists()) {
outputFile.delete();
}
File parentDir = outputFile.getParentFile();
if (parentDir.exists()) {
parentDir.delete();
}
return;
}
// 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;
}
});
Utils.createParentDir(outputFile);
BufferedWriter writer = null;
IOException caughtException = null;
boolean oldStyle = false;
for (int i = 0; i < simpleInfos.length; i++) {
if (SimpleConfiguratorManipulatorImpl.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;
}
}
try {
writer = new BufferedWriter(new FileWriter(outputFile));
// 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();
}
} catch (IOException e) {
caughtException = e;
} finally {
if (writer != null) {
try {
writer.close();
} catch (IOException e) {
// we want to avoid over-writing the original exception
if (caughtException != null)
caughtException = e;
}
}
}
if (caughtException != null)
throw caughtException;
}
public static String createVersionLine() {
return VERSION_PREFIX + VERSION_1;
}
public static String createBundleInfoLine(BundleInfo bundleInfo, boolean oldStyle) throws IOException {
// 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";
return scheme + ":" + location.getSchemeSpecificPart();
}
String result = location.toString();
int commaIndex = result.indexOf(',');
while (commaIndex != -1) {
result = result.substring(0, commaIndex) + "%2C" + result.substring(commaIndex + 1);
commaIndex = result.indexOf(',');
}
return result;
}
}
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