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/*
* 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.tuscany.sca.binding.websocket.runtime;
import java.lang.reflect.InvocationTargetException;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.core.invocation.Constants;
import org.apache.tuscany.sca.core.invocation.impl.MessageImpl;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
/**
* The service invoker is used to call an operation implementation in a
* synchronous or asynchronous way.
*/
public class WebsocketServiceInvoker {
protected AssemblyFactory assemblyFactory;
protected Operation operation;
protected RuntimeEndpoint endpoint;
public WebsocketServiceInvoker(ExtensionPointRegistry extensionPoints, Operation operation, RuntimeEndpoint endpoint) {
FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
this.operation = operation;
this.endpoint = endpoint;
}
public WebsocketBindingMessage invokeSync(WebsocketBindingMessage request) {
String jsonParams = request.getPayload();
Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
try {
Object operationResponse = endpoint.invoke(operation, args);
String payload = JSONUtil.encodePayload(operationResponse);
WebsocketBindingMessage response = new WebsocketBindingMessage(request.getOperation(), payload);
return response;
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
public void invokeAsync(WebsocketBindingMessage request, TuscanyWebsocket channel) {
String jsonParams = request.getPayload();
Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
Message msg = new MessageImpl();
msg.getHeaders().put(Constants.MESSAGE_ID, channel.getId());
msg.setBody(args);
EndpointReference re = assemblyFactory.createEndpointReference(); //new RuntimeEndpointReferenceImpl();
Endpoint callbackEndpoint = assemblyFactory.createEndpoint(); //new RuntimeEndpointImpl();
callbackEndpoint.setURI(request.getOperation());
re.setCallbackEndpoint(callbackEndpoint);
msg.setFrom(re);
endpoint.invoke(operation, msg);
}
public boolean isNonBlocking() {
return operation.isNonBlocking();
}
}
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