/*
 * 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.util.felix;

import java.util.Collections;
import java.util.Map;

import org.apache.aries.subsystem.obr.internal.AbstractCapability;
import org.apache.aries.subsystem.obr.internal.NamespaceTranslator;
import org.osgi.framework.namespace.BundleNamespace;
import org.osgi.namespace.service.ServiceNamespace;
import org.osgi.resource.Resource;

public class FelixCapabilityAdapter extends AbstractCapability {
	private final org.apache.felix.bundlerepository.Capability capability;
	private final Resource resource;
	
	public FelixCapabilityAdapter(org.apache.felix.bundlerepository.Capability capability, Resource resource) {
		if (capability == null)
			throw new NullPointerException("Missing required parameter: capability");
		this.capability = capability;
		this.resource = resource;
	}

	public Map<String, Object> getAttributes() {
		Map<String, Object> result = capability.getPropertiesAsMap();
		String namespace = getNamespace();
		if (ServiceNamespace.SERVICE_NAMESPACE.equals(namespace))
			result.put(ServiceNamespace.CAPABILITY_OBJECTCLASS_ATTRIBUTE, result.get(ServiceNamespace.CAPABILITY_OBJECTCLASS_ATTRIBUTE.toLowerCase()));
		else if (BundleNamespace.BUNDLE_NAMESPACE.equals(namespace)) {
			result.put(BundleNamespace.BUNDLE_NAMESPACE, result.get(org.apache.felix.bundlerepository.Resource.SYMBOLIC_NAME));
			result.put(BundleNamespace.CAPABILITY_BUNDLE_VERSION_ATTRIBUTE, result.get(org.apache.felix.bundlerepository.Resource.VERSION));
		}
		else
			result.put(namespace, result.get(capability.getName()));
		return result;
	}

	public Map<String, String> getDirectives() {
		return Collections.emptyMap();
	}

	public String getNamespace() {
		return NamespaceTranslator.translate(capability.getName());
	}

	public Resource getResource() {
		return resource;
	}
}
