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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.rest.provider;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.HEAD;
import javax.ws.rs.HttpMethod;
import javax.ws.rs.OPTIONS;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import org.apache.tuscany.sca.binding.rest.RESTBinding;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.wink.client.ClientConfig;
import org.apache.wink.client.EntityType;
import org.apache.wink.client.Resource;
import org.apache.wink.client.RestClient;
/**
*
*/
public class RESTBindingInvoker implements Invoker {
private RESTBinding binding;
private Operation operation;
public RESTBindingInvoker(RESTBinding binding, Operation operation) {
super();
this.binding = binding;
this.operation = operation;
}
private static Map<Class<?>, String> mapping = new HashMap<Class<?>, String>();
static {
mapping.put(GET.class, HttpMethod.GET);
mapping.put(POST.class, HttpMethod.POST);
mapping.put(PUT.class, HttpMethod.PUT);
mapping.put(DELETE.class, HttpMethod.DELETE);
mapping.put(HEAD.class, HttpMethod.HEAD);
mapping.put(OPTIONS.class, HttpMethod.OPTIONS);
}
public Message invoke(Message msg) {
ClientConfig config = new ClientConfig();
RestClient client = new RestClient();
Resource resource = client.resource(binding.getURI());
String method = null;
for (Map.Entry<Class<?>, String> e : mapping.entrySet()) {
if (operation.getAttributes().get(e.getKey()) != null) {
method = e.getValue();
break;
}
}
EntityType<?> entityType = new EntityType() {
@Override
public Class getRawClass() {
if (operation.getOutputType() != null) {
return operation.getOutputType().getPhysical();
} else {
return null;
}
}
@Override
public Type getType() {
if (operation.getOutputType() != null) {
return operation.getOutputType().getGenericType();
} else {
return null;
}
}
};
Object result = resource.invoke(method, entityType, msg.getBody());
msg.setBody(result);
return msg;
}
}
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