/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sling.installer.core.impl.tasks;
import java.util.ArrayList;
import java.util.List;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.Version;
/**
* Holds the bundle info that we need, makes it easier to test
* without an OSGi framework.
*/
public class BundleInfo {
private static final String MAVEN_SNAPSHOT_MARKER = "SNAPSHOT";
final public String symbolicName;
final public Version version;
final public int state;
final public long id;
public BundleInfo(String symbolicName, Version version, int state, long id) {
this.symbolicName = symbolicName;
this.version = version;
this.state = state;
this.id = id;
}
private BundleInfo(Bundle b) {
this.symbolicName = b.getSymbolicName();
this.version = new Version((String)b.getHeaders().get(Constants.BUNDLE_VERSION));
this.state = b.getState();
this.id = b.getBundleId();
}
public static BundleInfo getBundleInfo(final BundleContext bundleContext,
final String symbolicName, final String version) {
final Bundle b = getMatchingBundle(bundleContext, symbolicName, version);
if (b == null) {
return null;
}
return new BundleInfo(b);
}
/**
* Finds the bundle with given symbolic name in our bundle context.
*/
public static Bundle getMatchingBundle(final BundleContext bundleContext,
final String bundleSymbolicName, final String version) {
Bundle match = null;
if (bundleSymbolicName != null) {
// check if this is the system bundle
if ( Constants.SYSTEM_BUNDLE_SYMBOLICNAME.equals(bundleSymbolicName) ) {
return bundleContext.getBundle(0);
}
final List<Bundle> matchingBundles = new ArrayList<Bundle>();
final Bundle[] bundles = bundleContext.getBundles();
for (Bundle bundle : bundles) {
if (bundleSymbolicName.equals(bundle.getSymbolicName())) {
matchingBundles.add(bundle);
}
}
if ( matchingBundles.size() > 0 ) {
final Version searchVersion = (version == null ? null : new Version(version));
if ( searchVersion == null || searchVersion.compareTo(getBundleVersion(matchingBundles.get(0))) == 0 ) {
match = matchingBundles.get(0);
}
for(int i=1; i<matchingBundles.size(); i++) {
final Bundle current = matchingBundles.get(i);
if ( searchVersion == null ) {
if ( getBundleVersion(match).compareTo(getBundleVersion(current)) < 0 ) {
match = current;
}
} else {
if ( searchVersion.compareTo(getBundleVersion(current)) == 0 ) {
match = current;
break;
}
}
}
}
}
return match;
}
private static Version getBundleVersion(final Bundle b) {
return new Version((String)b.getHeaders().get(Constants.BUNDLE_VERSION));
}
/**
* Check if the version is a snapshot version
*/
public static boolean isSnapshot(final Version v) {
return v.toString().indexOf(MAVEN_SNAPSHOT_MARKER) >= 0;
}
}