/*
* 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.brooklyn.core.config;
import java.util.Map;
import org.apache.brooklyn.api.mgmt.ExecutionContext;
import org.apache.brooklyn.config.ConfigKey;
import org.apache.brooklyn.util.exceptions.Exceptions;
@SuppressWarnings("rawtypes")
public class SubElementConfigKey<T> extends BasicConfigKey<T> {
private static final long serialVersionUID = -1587240876351450665L;
public final ConfigKey parent;
public SubElementConfigKey(ConfigKey parent, Class<T> type, String name) {
this(parent, type, name, name, null);
}
public SubElementConfigKey(ConfigKey parent, Class<T> type, String name, String description) {
this(parent, type, name, description, null);
}
public SubElementConfigKey(ConfigKey parent, Class<T> type, String name, String description, T defaultValue) {
super(type, name, description, defaultValue);
this.parent = parent;
}
@SuppressWarnings("unchecked")
@Override
public T extractValue(Map vals, ExecutionContext exec) {
if (vals.containsKey(this)) return super.extractValue(vals, exec);
if (parent instanceof StructuredConfigKey) {
// look for subkey in map at parent, in the event that the parent was set as an unstructured key
Object parentVals = vals.get(parent);
if (parentVals instanceof Map) {
String subName = getName().substring(parent.getName().length()+1);
if ( ((Map) parentVals).containsKey(subName) ) {
try {
return (T) resolveValue( ((Map) parentVals).get(subName), exec );
} catch (Exception e) { throw Exceptions.propagate(e); }
}
}
}
return null;
}
@Override
public boolean isSet(Map<?,?> vals) {
if (super.isSet(vals)) return true;
if (parent instanceof StructuredConfigKey) {
// look for subkey in map at parent, in the event that the parent was set as an unstructured key
Object parentVals = vals.get(parent);
if (parentVals instanceof Map) {
String subName = getName().substring(parent.getName().length()+1);
if ( ((Map) parentVals).containsKey(subName) ) return true;
}
}
return false;
}
}