/**
* 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.cxf.clustering;
import org.apache.cxf.Bus;
import org.apache.cxf.annotations.EvaluateAllEndpoints;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.endpoint.Client;
import org.apache.cxf.endpoint.ConduitSelector;
import org.apache.cxf.endpoint.ConduitSelectorHolder;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.feature.AbstractFeature;
import org.apache.cxf.interceptor.InterceptorProvider;
/**
* This feature may be applied to a Client so as to enable
* failover from the initial target endpoint to any other
* compatible endpoint for the target service.
*/
@NoJSR250Annotations
@EvaluateAllEndpoints
public class FailoverFeature extends AbstractFeature {
private FailoverStrategy failoverStrategy;
private FailoverTargetSelector targetSelector;
@Override
protected void initializeProvider(InterceptorProvider provider, Bus bus) {
if (provider instanceof ConduitSelectorHolder) {
ConduitSelectorHolder csHolder = (ConduitSelectorHolder) provider;
Endpoint endpoint = csHolder.getConduitSelector().getEndpoint();
ConduitSelector conduitSelector = initTargetSelector(endpoint);
csHolder.setConduitSelector(conduitSelector);
}
}
@Override
public void initialize(Client client, Bus bus) {
ConduitSelector selector = initTargetSelector(client.getConduitSelector().getEndpoint());
client.setConduitSelector(selector);
}
protected ConduitSelector initTargetSelector(Endpoint endpoint) {
FailoverTargetSelector selector = getTargetSelector();
selector.setEndpoint(endpoint);
selector.setStrategy(getStrategy());
return selector;
}
public FailoverTargetSelector getTargetSelector() {
if (this.targetSelector == null) {
this.targetSelector = new FailoverTargetSelector();
}
return this.targetSelector;
}
public void setTargetSelector(FailoverTargetSelector selector) {
this.targetSelector = selector;
}
public void setStrategy(FailoverStrategy strategy) {
failoverStrategy = strategy;
}
public FailoverStrategy getStrategy() {
return failoverStrategy;
}
}