/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.karaf.features.internal.resolver;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.osgi.framework.Constants;
import org.osgi.resource.Capability;
import org.osgi.resource.Resource;
public class CapabilityImpl extends BaseClause implements Capability {
private final Resource resource;
private final String namespace;
private final Map<String, String> dirs;
private final Map<String, Object> attrs;
private final Set<String> mandatory;
public CapabilityImpl(Resource resource, String namespace,
Map<String, String> dirs, Map<String, Object> attrs) {
this.namespace = namespace;
this.resource = resource;
this.dirs = dirs;
this.attrs = attrs;
// Handle mandatory directive
Set<String> mandatory = Collections.emptySet();
String value = this.dirs.get(Constants.MANDATORY_DIRECTIVE);
if (value != null) {
List<String> names = ResourceBuilder.parseDelimitedString(value, ",");
mandatory = new HashSet<>(names.size());
for (String name : names) {
// If attribute exists, then record it as mandatory.
if (this.attrs.containsKey(name)) {
mandatory.add(name);
// Otherwise, report an error.
} else {
throw new IllegalArgumentException("Mandatory attribute '" + name + "' does not exist.");
}
}
}
this.mandatory = mandatory;
}
public Resource getResource() {
return resource;
}
public String getNamespace() {
return namespace;
}
public Map<String, String> getDirectives() {
return dirs;
}
public Map<String, Object> getAttributes() {
return attrs;
}
public boolean isAttributeMandatory(String name) {
return !mandatory.isEmpty() && mandatory.contains(name);
}
}