/*
* 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 java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.osgi.framework.namespace.IdentityNamespace;
import org.osgi.resource.Capability;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;
import org.osgi.service.repository.RepositoryContent;
public class FelixResourceAdapter implements Resource, RepositoryContent {
private final org.apache.felix.bundlerepository.Resource resource;
public FelixResourceAdapter(final org.apache.felix.bundlerepository.Resource resource) {
this.resource = resource;
}
public boolean equals(Object o) {
if (o == this)
return true;
if (!(o instanceof Resource))
return false;
Resource that = (Resource)o;
if (!ResourceHelper.getTypeAttribute(that).equals(ResourceHelper.getTypeAttribute(this)))
return false;
if (!ResourceHelper.getSymbolicNameAttribute(that).equals(ResourceHelper.getSymbolicNameAttribute(this)))
return false;
if (!ResourceHelper.getVersionAttribute(that).equals(ResourceHelper.getVersionAttribute(this)))
return false;
return true;
}
public int hashCode() {
int result = 17;
result = 31 * result + ResourceHelper.getTypeAttribute(this).hashCode();
result = 31 * result + ResourceHelper.getSymbolicNameAttribute(this).hashCode();
result = 31 * result + ResourceHelper.getVersionAttribute(this).hashCode();
return result;
}
public List<Capability> getCapabilities(String namespace) {
namespace = NamespaceTranslator.translate(namespace);
if (namespace == null || namespace.equals(IdentityNamespace.IDENTITY_NAMESPACE)) {
Capability c = new OsgiIdentityCapability(this, resource.getSymbolicName(), resource.getVersion());
return Collections.singletonList(c);
}
// TODO Add to constants.
if (namespace.equals("osgi.content")) {
Capability c = new OsgiContentCapability(this, resource.getURI());
return Collections.singletonList(c);
}
org.apache.felix.bundlerepository.Capability[] capabilities = resource.getCapabilities();
ArrayList<Capability> result = new ArrayList<Capability>(capabilities.length);
for (org.apache.felix.bundlerepository.Capability capability : capabilities) {
if (namespace != null && !capability.getName().equals(namespace)) continue;
result.add(new FelixCapabilityAdapter(capability, this));
}
result.trimToSize();
return result;
}
@Override
public InputStream getContent() {
try {
return new URL(resource.getURI()).openStream();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
public List<Requirement> getRequirements(String namespace) {
namespace = NamespaceTranslator.translate(namespace);
org.apache.felix.bundlerepository.Requirement[] requirements = resource.getRequirements();
ArrayList<Requirement> result = new ArrayList<Requirement>(requirements.length);
for (final org.apache.felix.bundlerepository.Requirement requirement : requirements) {
if (namespace == null || requirement.getName().equals(namespace))
result.add(new FelixRequirementAdapter(requirement, this));
}
result.trimToSize();
return result;
}
@Override
public String toString() {
Capability c = getCapabilities(IdentityNamespace.IDENTITY_NAMESPACE)
.iterator().next();
Map<String, Object> atts = c.getAttributes();
return new StringBuilder()
.append(atts.get(IdentityNamespace.IDENTITY_NAMESPACE))
.append(';')
.append(atts
.get(IdentityNamespace.CAPABILITY_VERSION_ATTRIBUTE))
.append(';')
.append(atts.get(IdentityNamespace.CAPABILITY_TYPE_ATTRIBUTE))
.toString();
}
}