01: /**
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing,
13: * software distributed under the License is distributed on an
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15: * KIND, either express or implied. See the License for the
16: * specific language governing permissions and limitations
17: * under the License.
18: */package org.apache.cxf.clustering;
19:
20: import java.util.List;
21: import java.util.Random;
22:
23: import org.apache.cxf.endpoint.Endpoint;
24:
25: /**
26: * Failover strategy based on a randomized walk through the
27: * static cluster represented by multiple endpoints associated
28: * with the same service instance.
29: */
30: public class RandomStrategy extends AbstractStaticFailoverStrategy {
31:
32: private Random random;
33:
34: /**
35: * Constructor.
36: */
37: public RandomStrategy() {
38: random = new Random();
39: }
40:
41: /**
42: * Get next alternate endpoint.
43: *
44: * @param alternates non-empty List of alternate endpoints
45: * @return
46: */
47: protected Endpoint getNextAlternate(List<Endpoint> alternates) {
48: return alternates.remove(random.nextInt(alternates.size()));
49: }
50: }
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