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/*-
* ============LICENSE_START=======================================================
* ECOMP Policy Engine
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.policy.pap.xacml.rest.util;
import java.io.Serializable;
import java.util.Collection;
import java.util.EventObject;
import java.util.LinkedList;
import org.openecomp.policy.pap.xacml.rest.util.PolicyContainer.ItemSetChangeEvent;
import org.openecomp.policy.pap.xacml.rest.util.PolicyContainer.ItemSetChangeListener;
public class PolicyItemSetChangeNotifier implements PolicyContainer.ItemSetChangeNotifier {
private static final long serialVersionUID = 1L;
private Collection<PolicyContainer.ItemSetChangeListener> itemSetChangeListeners = null;
private PolicyContainer container = null;
public PolicyItemSetChangeNotifier() {
}
protected void setContainer(PolicyContainer c) {
this.container = c;
}
@Override
public void addItemSetChangeListener(ItemSetChangeListener listener) {
if (getItemSetChangeListeners() == null) {
setItemSetChangeListeners(new LinkedList<PolicyContainer.ItemSetChangeListener>());
}
getItemSetChangeListeners().add(listener); }
@Override
public void removeItemSetChangeListener(ItemSetChangeListener listener) {
if (getItemSetChangeListeners() != null) {
getItemSetChangeListeners().remove(listener);
}
}
protected static class BaseItemSetChangeEvent extends EventObject implements
PolicyContainer.ItemSetChangeEvent, Serializable {
private static final long serialVersionUID = 1L;
protected BaseItemSetChangeEvent(PolicyContainer source) {
super(source);
}
@Override
public PolicyContainer getContainer() {
return (PolicyContainer) getSource();
}
}
protected void setItemSetChangeListeners(
Collection<PolicyContainer.ItemSetChangeListener> itemSetChangeListeners) {
this.itemSetChangeListeners = itemSetChangeListeners;
}
protected Collection<PolicyContainer.ItemSetChangeListener> getItemSetChangeListeners() {
return itemSetChangeListeners;
}
protected void fireItemSetChange() {
fireItemSetChange(new BaseItemSetChangeEvent(this.container));
}
protected void fireItemSetChange(ItemSetChangeEvent event) {
if (getItemSetChangeListeners() != null) {
final Object[] l = getItemSetChangeListeners().toArray();
for (int i = 0; i < l.length; i++) {
((PolicyContainer.ItemSetChangeListener) l[i])
.containerItemSetChange(event);
}
}
}
}
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