/* | |
* Licensed 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.aries.subsystem.core.internal; | |
import java.util.Collection; | |
import java.util.Collections; | |
import java.util.HashMap; | |
import java.util.HashSet; | |
import java.util.Map; | |
import java.util.Set; | |
import org.osgi.framework.BundleContext; | |
import org.osgi.framework.InvalidSyntaxException; | |
import org.osgi.framework.ServiceReference; | |
import org.osgi.resource.Capability; | |
import org.osgi.resource.Requirement; | |
import org.osgi.service.repository.Repository; | |
public class RepositoryServiceRepository implements Repository { | |
private final BundleContext context; | |
public RepositoryServiceRepository() { | |
this(Activator.getInstance().getBundleContext()); | |
} | |
public RepositoryServiceRepository(BundleContext context) { | |
this.context = context; | |
} | |
public Collection<Capability> findProviders(Requirement requirement) { | |
Set<Capability> result = new HashSet<Capability>(); | |
Collection<ServiceReference<Repository>> references; | |
try { | |
references = context.getServiceReferences(Repository.class, null); | |
} | |
catch (InvalidSyntaxException e) { | |
throw new IllegalStateException(e); | |
} | |
for (ServiceReference<Repository> reference : references) { | |
Repository repository = context.getService(reference); | |
try { | |
if (repository == null) | |
continue; | |
Map<Requirement, Collection<Capability>> map = repository.findProviders(Collections.singleton(requirement)); | |
Collection<Capability> capabilities = map.get(requirement); | |
if (capabilities == null) | |
continue; | |
result.addAll(capabilities); | |
} | |
finally { | |
context.ungetService(reference); | |
} | |
} | |
return result; | |
} | |
@Override | |
public Map<Requirement, Collection<Capability>> findProviders( | |
Collection<? extends Requirement> requirements) { | |
Map<Requirement, Collection<Capability>> result = new HashMap<Requirement, Collection<Capability>>(); | |
for (Requirement requirement : requirements) | |
result.put(requirement, findProviders(requirement)); | |
return result; | |
} | |
} |