/*
* 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.synapse.config.xml.endpoints;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.SynapseException;
import org.apache.synapse.endpoints.Endpoint;
import org.apache.synapse.endpoints.FailoverEndpoint;
import javax.xml.namespace.QName;
import java.util.List;
import java.util.Properties;
/**
* Creates {@link FailoverEndpoint} using a XML configuration.
*
* <endpoint [name="name"]>
* <failover>
* <endpoint>+
* </failover>
* </endpoint>
*/
public class FailoverEndpointFactory extends EndpointFactory {
private static FailoverEndpointFactory instance = new FailoverEndpointFactory();
private FailoverEndpointFactory() {}
public static FailoverEndpointFactory getInstance() {
return instance;
}
protected Endpoint createEndpoint(OMElement epConfig, boolean anonymousEndpoint,
Properties properties) {
OMElement failoverElement = epConfig.getFirstChildWithName
(new QName(SynapseConstants.SYNAPSE_NAMESPACE, "failover"));
if (failoverElement != null) {
FailoverEndpoint failoverEndpoint = new FailoverEndpoint();
// set endpoint name
String name = epConfig.getAttributeValue(new QName("name"));
if (name != null) {
failoverEndpoint.setName(name);
}
List<Endpoint> childEndpoints = getEndpoints(
failoverElement, failoverEndpoint, properties);
if(childEndpoints == null || childEndpoints.size() == 0){
String msg = "Invalid Synapse configuration.\n"
+ "A FailOver must have child elements, but the FailOver "
+ "'" + failoverEndpoint.getName() + "' does not have any child elements.";
log.error(msg);
throw new SynapseException(msg);
}
// set endpoints and return
failoverEndpoint.setChildren(getEndpoints(
failoverElement, failoverEndpoint, properties));
// process the parameters
processProperties(failoverEndpoint, epConfig);
return failoverEndpoint;
}
return null;
}
}