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/*******************************************************************************
* Copyright (c) 2011, 2013 IBM Corporation and others.
*
* 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.region.tests;
import java.io.IOException;
import java.net.URL;
import java.security.*;
import java.util.*;
import org.eclipse.equinox.region.Region;
import org.eclipse.osgi.service.urlconversion.URLConverter;
import org.osgi.framework.*;
import org.osgi.framework.wiring.FrameworkWiring;
import org.osgi.util.tracker.ServiceTracker;
public class BundleInstaller {
private final BundleContext context;
private final Bundle testBundle;
private String rootLocation;
private Map<String, Bundle> bundles = new HashMap<String, Bundle>();
private final ServiceTracker<URLConverter, URLConverter> converter;
private final FrameworkWiring frameworkWiring;
public BundleInstaller(String bundlesRoot, Bundle testBundle) throws InvalidSyntaxException {
BundleContext bc = testBundle.getBundleContext();
Bundle systemBundle = bc.getBundle(0);
context = systemBundle.getBundleContext();
frameworkWiring = systemBundle.adapt(FrameworkWiring.class);
rootLocation = bundlesRoot;
converter = new ServiceTracker<URLConverter, URLConverter>(context, context.createFilter("(&(objectClass=" + URLConverter.class.getName() + ")(protocol=bundleentry))"), null);
converter.open();
this.testBundle = testBundle;
}
synchronized public Bundle installBundle(String name) throws BundleException {
return installBundle(name, null);
}
synchronized public Bundle installBundle(String name, Region region) throws BundleException {
if (bundles == null)
return null;
String location = getBundleLocation(name);
Bundle bundle = region != null ? region.installBundle(location) : context.installBundle(location);
if (bundles.containsKey(name)) {
int offset = 0;
while (bundles.containsKey(name + '_' + offset)) {
offset++;
}
bundles.put(name + '_' + offset, bundle);
} else {
bundles.put(name, bundle);
}
return bundle;
}
public String getBundleLocation(final String name) throws BundleException {
if (System.getSecurityManager() == null)
return getBundleLocation0(name);
try {
return AccessController.doPrivileged(new PrivilegedExceptionAction<String>() {
public String run() throws Exception {
return getBundleLocation0(name);
}
});
} catch (PrivilegedActionException e) {
throw (BundleException) e.getException();
}
}
String getBundleLocation0(String name) throws BundleException {
String bundleFileName = rootLocation + "/" + name;
URL bundleURL = testBundle.getEntry(bundleFileName);
if (bundleURL == null)
bundleURL = testBundle.getEntry(bundleFileName + ".jar");
if (bundleURL == null)
throw new BundleException("Could not find bundle to install at: " + name);
try {
bundleURL = (converter.getService()).resolve(bundleURL);
} catch (IOException e) {
throw new BundleException("Converter error", e);
}
String location = bundleURL.toExternalForm();
if ("file".equals(bundleURL.getProtocol()))
location = "reference:" + location;
return location;
}
synchronized public Bundle updateBundle(String fromName, String toName) throws BundleException {
if (bundles == null)
return null;
Bundle fromBundle = bundles.get(fromName);
if (fromBundle == null)
throw new BundleException("The bundle to update does not exist!! " + fromName);
String bundleFileName = rootLocation + "/" + toName;
URL bundleURL = testBundle.getEntry(bundleFileName);
if (bundleURL == null)
bundleURL = testBundle.getEntry(bundleFileName + ".jar");
try {
bundleURL = converter.getService().resolve(bundleURL);
} catch (IOException e) {
throw new BundleException("Converter error", e);
}
String location = bundleURL.toExternalForm();
if ("file".equals(bundleURL.getProtocol()))
location = "reference:" + location;
try {
fromBundle.update(new URL(location).openStream());
} catch (Exception e) {
throw new BundleException("Errors when updating bundle " + fromBundle, e);
}
bundles.remove(fromName);
bundles.put(toName, fromBundle);
return fromBundle;
}
synchronized public Bundle uninstallBundle(String name) throws BundleException {
if (bundles == null)
return null;
Bundle bundle = bundles.remove(name);
if (bundle == null)
return null;
bundle.uninstall();
return bundle;
}
synchronized public Bundle[] uninstallAllBundles() throws BundleException {
if (bundles == null)
return null;
List<Bundle> result = new ArrayList<Bundle>(bundles.size());
for (Iterator<Bundle> iter = bundles.values().iterator(); iter.hasNext();) {
Bundle bundle = iter.next();
try {
bundle.uninstall();
} catch (IllegalStateException e) {
// ignore; bundle probably already uninstalled
}
result.add(bundle);
}
bundles.clear();
return result.toArray(new Bundle[result.size()]);
}
synchronized public Bundle[] shutdown() throws BundleException {
if (bundles == null)
return null;
Bundle[] result = uninstallAllBundles();
refreshPackages(result);
converter.close();
bundles = null;
return result;
}
synchronized public Bundle[] refreshPackages(Bundle[] refresh) {
if (refresh == null)
return null;
final boolean[] flag = new boolean[] {false};
FrameworkListener listener = new FrameworkListener() {
public void frameworkEvent(FrameworkEvent event) {
if (event.getType() == FrameworkEvent.PACKAGES_REFRESHED)
synchronized (flag) {
flag[0] = true;
flag.notifyAll();
}
}
};
final Set<Bundle> refreshed = new HashSet<Bundle>();
BundleListener refreshBundleListener = new SynchronousBundleListener() {
public void bundleChanged(BundleEvent event) {
refreshed.add(event.getBundle());
}
};
context.addBundleListener(refreshBundleListener);
try {
frameworkWiring.refreshBundles(Arrays.asList(refresh), listener);
synchronized (flag) {
while (!flag[0]) {
try {
flag.wait(5000);
} catch (InterruptedException e) {
// do nothing
}
}
}
} finally {
context.removeBundleListener(refreshBundleListener);
}
return refreshed.toArray(new Bundle[refreshed.size()]);
}
synchronized public boolean resolveBundles(Bundle[] resolve) {
if (resolve == null)
return false;
return frameworkWiring.resolveBundles(Arrays.asList(resolve));
}
synchronized public Bundle getBundle(String name) {
if (bundles == null)
return null;
return bundles.get(name);
}
}
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