/*
* 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.sling.discovery.impl.cluster.helpers;
import java.util.HashMap;
import java.util.Map;
import org.apache.sling.discovery.TopologyEvent;
import org.apache.sling.discovery.TopologyEvent.Type;
public class AcceptsMultiple implements TopologyEventAsserter {
private final Type[] acceptedTypes;
private final Map<Type, Integer> counts = new HashMap<Type, Integer>();
public AcceptsMultiple(Type... acceptedTypes) {
this.acceptedTypes = acceptedTypes;
}
public synchronized void assertOk(TopologyEvent event) {
for (int i = 0; i < acceptedTypes.length; i++) {
Type aType = acceptedTypes[i];
if (aType == event.getType()) {
// perfect
Integer c = counts.remove(aType);
if (c == null) {
counts.put(aType, new Integer(1));
} else {
counts.put(aType, new Integer(c + 1));
}
return;
}
}
throw new IllegalStateException("Got an Event which I did not expect: "
+ event.getType());
}
public synchronized int getEventCnt(Type type) {
Integer i = counts.get(type);
if (i!=null) {
return i;
} else {
return 0;
}
}
}