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/*******************************************************************************
* Copyright (c) 2008, 2017 IBM Corporation and others.
* All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which accompanies this distribution,
* and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* 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 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.internal.simpleconfigurator.utils.SimpleConfiguratorUtils;
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"); //$NON-NLS-1$
private static final Version DEFAULT_ENCODING_CONFIGURATOR_VERSION = new Version("1.0.200.v20100503"); //$NON-NLS-1$ 3.6, after bug 289644
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, (b1, b2) -> {
int bsnComparison = b1.getSymbolicName().compareTo(b2.getSymbolicName());
if (bsnComparison != 0)
return bsnComparison;
// prefer latest version, see https://bugs.eclipse.org/363590
return new Version(b2.getVersion()).compareTo(new Version(b1.getVersion()));
});
BufferedWriter writer = null;
boolean oldStyle = false;
boolean utf8 = true;
for (BundleInfo simpleInfo : simpleInfos) {
if (SimpleConfiguratorManipulator.SERVICE_PROP_VALUE_CONFIGURATOR_SYMBOLICNAME.equals(simpleInfo.getSymbolicName())) {
Version version = new Version(simpleInfo.getVersion());
if (version.compareTo(OLD_STYLE_SIMPLE_CONFIGURATOR_VERSION) < 0)
oldStyle = true;
if (version.compareTo(DEFAULT_ENCODING_CONFIGURATOR_VERSION) < 0)
utf8 = false;
break;
}
}
if (utf8) {
writer = new BufferedWriter(new OutputStreamWriter(stream, "UTF-8")); //$NON-NLS-1$
//encoding is expected to be the first line
writer.write(SimpleConfiguratorUtils.ENCODING_UTF8);
writer.newLine();
} else {
writer = new BufferedWriter(new OutputStreamWriter(stream));
}
writer.write(createVersionLine());
writer.newLine();
// bundle info lines
for (BundleInfo simpleInfo : simpleInfos) {
writer.write(createBundleInfoLine(simpleInfo, 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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