bundleplugin/src/main/java/aQute/lib/osgi/resource/ResourceImpl.java

package aQute.lib.osgi.resource;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.osgi.resource.Capability;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;

class ResourceImpl implements Resource {

	private List<Capability>				allCapabilities;
	private Map<String,List<Capability>>	capabilityMap;

	private List<Requirement>				allRequirements;
	private Map<String,List<Requirement>>	requirementMap;

	void setCapabilities(List<Capability> capabilities) {
		allCapabilities = capabilities;

		capabilityMap = new HashMap<String,List<Capability>>();
		for (Capability capability : capabilities) {
			List<Capability> list = capabilityMap.get(capability.getNamespace());
			if (list == null) {
				list = new LinkedList<Capability>();
				capabilityMap.put(capability.getNamespace(), list);
			}
			list.add(capability);
		}
	}

	public List<Capability> getCapabilities(String namespace) {
		return namespace == null ? allCapabilities : capabilityMap.get(namespace);
	}

	void setRequirements(List<Requirement> requirements) {
		allRequirements = requirements;

		requirementMap = new HashMap<String,List<Requirement>>();
		for (Requirement requirement : requirements) {
			List<Requirement> list = requirementMap.get(requirement.getNamespace());
			if (list == null) {
				list = new LinkedList<Requirement>();
				requirementMap.put(requirement.getNamespace(), list);
			}
			list.add(requirement);
		}
	}

	public List<Requirement> getRequirements(String namespace) {
		return namespace == null ? allRequirements : requirementMap.get(namespace);
	}

	@Override
	public String toString() {
		StringBuilder builder = new StringBuilder();
		builder.append("ResourceImpl [caps=");
		builder.append(allCapabilities);
		builder.append(", reqs=");
		builder.append(allRequirements);
		builder.append("]");
		return builder.toString();
	}

}