/* | |
* 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.archive; | |
import java.util.Collection; | |
import java.util.Collections; | |
import java.util.HashMap; | |
import java.util.Map; | |
import org.apache.aries.subsystem.core.internal.AbstractCapability; | |
import org.osgi.framework.namespace.BundleNamespace; | |
import org.osgi.resource.Resource; | |
public class ProvideBundleCapability extends AbstractCapability { | |
public static final String ATTRIBUTE_BUNDLE_VERSION = BundleNamespace.CAPABILITY_BUNDLE_VERSION_ATTRIBUTE; | |
public static final String DIRECTIVE_EFFECTIVE = BundleNamespace.CAPABILITY_EFFECTIVE_DIRECTIVE; | |
public static final String DIRECTIVE_FRAGMENT_ATTACHMENT = BundleNamespace.CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE; | |
public static final String DIRECTIVE_MANDATORY = BundleNamespace.CAPABILITY_MANDATORY_DIRECTIVE; | |
public static final String DIRECTIVE_SINGLETON = BundleNamespace.CAPABILITY_SINGLETON_DIRECTIVE; | |
public static final String DIRECTIVE_USES = BundleNamespace.CAPABILITY_USES_DIRECTIVE; | |
public static final String NAMESPACE = BundleNamespace.BUNDLE_NAMESPACE; | |
private static Map<String, Object> initializeAttributes(BundleSymbolicNameHeader bsn, BundleVersionHeader version) { | |
if (version == null) { | |
version = new BundleVersionHeader(); | |
} | |
Clause clause = bsn.getClauses().get(0); | |
Collection<Attribute> attributes = clause.getAttributes(); | |
Map<String, Object> result = new HashMap<String, Object>(attributes.size() + 2); | |
result.put(NAMESPACE, clause.getPath()); | |
result.put(ATTRIBUTE_BUNDLE_VERSION, version.getValue()); | |
for (Attribute attribute : attributes) { | |
result.put(attribute.getName(), attribute.getValue()); | |
} | |
return Collections.unmodifiableMap(result); | |
} | |
private static Map<String, String> initializeDirectives(Collection<Directive> directives) { | |
if (directives.isEmpty()) | |
return Collections.emptyMap(); | |
Map<String, String> result = new HashMap<String, String>(directives.size()); | |
for (Directive directive : directives) { | |
result.put(directive.getName(), directive.getValue()); | |
} | |
return Collections.unmodifiableMap(result); | |
} | |
private final Map<String, Object> attributes; | |
private final Map<String, String> directives; | |
private final Resource resource; | |
public ProvideBundleCapability(BundleSymbolicNameHeader bsn, BundleVersionHeader version, Resource resource) { | |
if (resource == null) | |
throw new NullPointerException("Missing required parameter: resource"); | |
this.resource = resource; | |
attributes = initializeAttributes(bsn, version); | |
directives = initializeDirectives(bsn.getClauses().get(0).getDirectives()); | |
} | |
@Override | |
public Map<String, Object> getAttributes() { | |
return attributes; | |
} | |
@Override | |
public Map<String, String> getDirectives() { | |
return directives; | |
} | |
@Override | |
public String getNamespace() { | |
return NAMESPACE; | |
} | |
@Override | |
public Resource getResource() { | |
return resource; | |
} | |
} |