/**
* Copyright 2005-2014 Red Hat, Inc.
*
* Red Hat 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 io.fabric8.demo.cxf.client;
import java.util.ArrayList;
import java.util.List;
import io.fabric8.cxf.FabricLoadBalancerFeature;
import io.fabric8.demo.cxf.Hello;
import org.apache.cxf.feature.AbstractFeature;
import org.apache.cxf.frontend.ClientProxyFactoryBean;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
/**
* The Fabric CXF Demo Client.
* <p/>
* This client is a standalone Java application (with a main method).
* The Client uses the fabric-cxf API to connect to the fabric (using ZooKeeper) and use the Fabric load balancer
* feature with Apache CXF to load balance between the CXF web services that runs in the fabric servers.
* The fabric is elastic, so you can start/stop/move/scale up and down the CXF web services, and the Fabric
* load balancer will dynamic adapt to these changes.
*/
public class Client {
private Hello hello;
public Client() {
// The feature will try to create a zookeeper client itself by checking the system property of
// zookeeper.url and zookeeper.password
//System.getProperty("zookeeper.password", "admin");
// or we can set these option directly on the FabricLoadBalancerFeature
FabricLoadBalancerFeature feature = new FabricLoadBalancerFeature();
feature.setZooKeeperPassword("admin");
feature.setZooKeeperUrl("localhost:2181");
// Feature will use this path to locate the service
feature.setFabricPath("cxf/demo");
ClientProxyFactoryBean clientFactory = new JaxWsProxyFactoryBean();
clientFactory.setServiceClass(ClientProxyFactoryBean.class);
// The address is not the actual address that the client will access
clientFactory.setAddress("http://someotherplace");
List<AbstractFeature> features = new ArrayList<AbstractFeature>();
features.add(feature);
// we need to setup the feature on the client factory
clientFactory.setFeatures(features);
// create the proxy of the hello
hello = clientFactory.create(Hello.class);
}
public Hello getProxy() {
return hello;
}
public static void main(String args[]) throws Exception {
Client client = new Client();
// 1 sec should be enough to fetch the load balance info from ZooKeeper
Thread.sleep(1000);
System.out.println("Calling the web service 10 times with 5 second delay ...");
for (int i = 0; i< 10; i++) {
System.out.println("Calling the sayHello #" + i + " with result: " + client.getProxy().sayHello());
Thread.sleep(5000);
}
System.out.println("... Done");
}
}