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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 sample;
import java.lang.reflect.Method;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.osoa.sca.ServiceRuntimeException;
public class JavaInvoker implements Invoker {
protected Class clazz;
protected Object instance;
protected Operation operation;
public JavaInvoker(Class clazz, Object instance, Operation operation) {
this.clazz = clazz;
this.instance = instance;
this.operation = operation;
}
public Message invoke(Message msg) {
try {
msg.setBody(getMethod().invoke(instance, (Object[])msg.getBody()));
} catch (Exception e) {
throw new ServiceRuntimeException(e);
}
return msg;
}
protected Method getMethod() {
for (Method method : clazz.getMethods()) {
if (method.getName().equals(operation.getName())) {
return method;
}
}
throw new ServiceRuntimeException("no method found for operation: " + operation.getName());
}
}
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