/*
* 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.obr.internal;
import static org.apache.aries.application.utils.AppConstants.LOG_ENTRY;
import static org.apache.aries.application.utils.AppConstants.LOG_EXIT;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.apache.aries.subsystem.util.felix.FelixCapabilityAdapter;
import org.apache.aries.subsystem.util.felix.FelixRepositoryAdapter;
import org.apache.aries.subsystem.util.felix.FelixResourceAdapter;
import org.apache.aries.subsystem.util.felix.OsgiRequirementAdapter;
import org.apache.felix.bundlerepository.RepositoryAdmin;
import org.apache.felix.bundlerepository.Resource;
import org.osgi.framework.namespace.IdentityNamespace;
import org.osgi.resource.Capability;
import org.osgi.resource.Requirement;
import org.osgi.service.repository.Repository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RepositoryAdminRepository implements Repository {
private static final Logger logger = LoggerFactory.getLogger(RepositoryAdminRepository.class);
private final RepositoryAdmin repositoryAdmin;
public RepositoryAdminRepository(RepositoryAdmin repositoryAdmin) {
this.repositoryAdmin = repositoryAdmin;
}
public Collection<Capability> findProviders(Requirement requirement) {
logger.debug(LOG_ENTRY, "findProviders", requirement);
Collection<Capability> result = Collections.emptyList();
if (IdentityNamespace.IDENTITY_NAMESPACE.equals(requirement.getNamespace())) {
result = new ArrayList<Capability>();
for (org.apache.felix.bundlerepository.Repository r : repositoryAdmin.listRepositories()) {
FelixRepositoryAdapter repository = new FelixRepositoryAdapter(r);
Map<Requirement, Collection<Capability>> map = repository.findProviders(Arrays.asList(requirement));
Collection<Capability> capabilities = map.get(requirement);
if (capabilities != null)
result.addAll(capabilities);
}
return result;
}
else {
Resource[] resources = repositoryAdmin.discoverResources(
new org.apache.felix.bundlerepository.Requirement[]{
new OsgiRequirementAdapter(requirement)});
logger.debug("Found {} resources with capabilities satisfying {}", resources == null ? 0 : resources.length, requirement);
if (resources != null && resources.length != 0) {
result = new ArrayList<Capability>(result.size());
OsgiRequirementAdapter adapter = new OsgiRequirementAdapter(requirement);
for (Resource resource : resources) {
logger.debug("Evaluating resource {}", resource);
for (org.apache.felix.bundlerepository.Capability capability : resource.getCapabilities()) {
logger.debug("Evaluating capability {}", capability);
if (adapter.isSatisfied(capability)) {
logger.debug("Adding capability {}", capability);
result.add(new FelixCapabilityAdapter(capability, new FelixResourceAdapter(resource)));
}
}
}
}
}
logger.debug(LOG_EXIT, "findProviders", result);
return result;
}
@Override
public Map<Requirement, Collection<Capability>> findProviders(Collection<? extends Requirement> requirements) {
Map<Requirement, Collection<Capability>> result = new HashMap<Requirement, Collection<Capability>>(requirements.size());
for (Requirement requirement : requirements)
result.put(requirement, findProviders(requirement));
return result;
}
}