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/*******************************************************************************
* Copyright (c) 2008, 2011 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.osgi.internal.composite;
import org.eclipse.osgi.framework.adaptor.BundleData;
import org.eclipse.osgi.framework.internal.core.FrameworkProperties;
import org.eclipse.osgi.internal.module.ResolverBundle;
import org.eclipse.osgi.service.internal.composite.CompositeModule;
import org.eclipse.osgi.service.resolver.BundleDescription;
import org.eclipse.osgi.service.resolver.ExportPackageDescription;
import org.osgi.framework.*;
import org.osgi.framework.launch.Framework;
import org.osgi.service.framework.CompositeBundle;
import org.osgi.service.framework.SurrogateBundle;
public class SurrogateImpl extends CompositeBase implements SurrogateBundle {
private final CompositeBundle composite;
public SurrogateImpl(BundleData bundledata, org.eclipse.osgi.framework.internal.core.Framework framework) throws BundleException {
super(bundledata, framework);
this.composite = (CompositeBundle) FrameworkProperties.getProperties().get(PROP_COMPOSITE);
}
protected Framework findCompanionFramework(org.eclipse.osgi.framework.internal.core.Framework thisFramework, BundleData thisData) {
// just get the property which was set when creating the child framework
return (Framework) FrameworkProperties.getProperties().get(PROP_PARENTFRAMEWORK);
}
public BundleContext getCompositeBundleContext() {
return composite.getBundleContext();
}
protected Bundle getCompanionBundle() {
return composite;
}
protected boolean isSurrogate() {
return true;
}
public boolean giveExports(ExportPackageDescription[] matchingExports) {
// only allow the surrogate resolution to occur if we are in the middle of resolving the composite
if (resolving.get() == null)
return false;
if (matchingExports == null) {
// set the surrogate to disabled to prevent resolution this go around
CompositeHelper.setDisabled(true, getBundleDescription());
return true;
}
return validExports(matchingExports);
}
private boolean validExports(ExportPackageDescription[] matchingExports) {
// make sure each matching exports matches the export signature of the composite
CompositeModule composite = (CompositeModule) getCompanionBundle();
BundleDescription childDesc = composite.getCompositeDescription();
ExportPackageDescription[] childExports = childDesc.getExportPackages();
for (int i = 0; i < matchingExports.length; i++) {
for (int j = 0; j < childExports.length; j++) {
if (matchingExports[i].getName().equals(childExports[j].getName())) {
if (!validateExport(matchingExports[i], childExports[j]))
return false;
continue;
}
}
}
return true;
}
private boolean validateExport(ExportPackageDescription matchingExport, ExportPackageDescription childExport) {
Version matchingVersion = matchingExport.getVersion();
Version childVersion = childExport.getVersion();
if (!childVersion.equals(Version.emptyVersion) && !matchingVersion.equals(childVersion))
return false;
if (!ResolverBundle.equivalentMaps(childExport.getAttributes(), matchingExport.getAttributes(), false))
return false;
if (!ResolverBundle.equivalentMaps(childExport.getDirectives(), matchingExport.getDirectives(), false))
return false;
return true;
}
protected void startHook() {
((CompositeModule) getCompanionBundle()).started(this);
}
protected void stopHook() {
((CompositeModule) getCompanionBundle()).stopped(this);
}
public void uninstall() throws BundleException {
throw new BundleException("Cannot uninstall surrogate bundles", BundleException.INVALID_OPERATION); //$NON-NLS-1$
}
}
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