/*
* 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.endpoints;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.description.Parameter;
import org.apache.synapse.MessageContext;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.core.axis2.Axis2MessageContext;
import org.apache.synapse.core.axis2.Axis2SynapseEnvironment;
import org.apache.synapse.core.SynapseEnvironment;
import org.apache.synapse.config.SynapseConfiguration;
import org.apache.synapse.config.Entry;
import java.util.List;
/**
* This class represents a real endpoint referred by a key. An Indirect endpoint does not really
* have a life, but merely acts as a virtual endpoint for the actual endpoint refferred.
*/
public class IndirectEndpoint extends AbstractEndpoint {
private String key = null;
private Endpoint realEndpoint = null;
/**
* Send by calling to the real endpoint
* @param synCtx the message to send
*/
public void send(MessageContext synCtx) {
reLoadAndInitEndpoint(((Axis2MessageContext) synCtx).
getAxis2MessageContext().getConfigurationContext());
if (realEndpoint != null) {
realEndpoint.send(synCtx);
} else {
informFailure(synCtx, SynapseConstants.ENDPOINT_IN_DIRECT_NOT_READY,
"Couldn't find the endpoint with the key : " + key);
}
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
@Override
/**
* Ready to send, if the real endpoint is ready
*/
public boolean readyToSend() {
return realEndpoint.readyToSend();
}
@Override
public void setName(String endpointName) {
// do nothing, also prevent this endpoint from binding to JMX
}
@Override
public EndpointContext getContext() {
return realEndpoint.getContext();
}
@Override
public List<Endpoint> getChildren() {
return realEndpoint.getChildren();
}
@Override
/**
* Since an Indirect never sends messages for real, it has no moetrics.. but those of its
* actual endpoint
*/
public EndpointView getMetricsMBean() {
return realEndpoint.getMetricsMBean();
}
@Override
/**
* Figure out the real endpoint we proxy for, and make sure its initialized
*/
public void init(SynapseEnvironment synapseEnvironment) {
ConfigurationContext cc =
((Axis2SynapseEnvironment) synapseEnvironment).getAxis2ConfigurationContext();
reLoadAndInitEndpoint(cc);
}
@Override
public String toString() {
return "Indirect Endpoint [" + key + "]";
}
/**
* Reload as needed , either from registry , local entries or predefined endpoints
* @param cc ConfigurationContext
*/
private synchronized void reLoadAndInitEndpoint(ConfigurationContext cc) {
Parameter parameter = cc.getAxisConfiguration().getParameter(
SynapseConstants.SYNAPSE_CONFIG);
Parameter synEnvParameter = cc.getAxisConfiguration().getParameter(
SynapseConstants.SYNAPSE_ENV);
if (parameter.getValue() instanceof SynapseConfiguration &&
synEnvParameter.getValue() instanceof SynapseEnvironment) {
SynapseConfiguration synCfg = (SynapseConfiguration) parameter.getValue();
SynapseEnvironment synapseEnvironment = (SynapseEnvironment) synEnvParameter.getValue();
boolean reLoad = (realEndpoint == null);
if (!reLoad) {
Entry entry = synCfg.getEntryDefinition(key);
if (entry != null && entry.isDynamic()) {
if (!entry.isCached() || entry.isExpired()) {
reLoad = true;
}
} else {
// If the endpoint is static we should reload it from the Synapse config
reLoad = true;
}
}
if (reLoad) {
if (log.isDebugEnabled()) {
log.debug("Loading real endpoint with key : " + key);
}
realEndpoint = synCfg.getEndpoint(key);
if (realEndpoint != null && !realEndpoint.isInitialized()) {
realEndpoint.init(synapseEnvironment);
}
}
}
}
}