org.apache.mina.springrpc.MinaServiceExporter.java Source code

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Here is the source code for org.apache.mina.springrpc.MinaServiceExporter.java

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/*
 * Copyright 2008-2013 the original author or authors.
 *
 * Licensed 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.mina.springrpc;

import org.apache.mina.core.service.IoAcceptor;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.remoting.support.RemoteInvocationBasedExporter;
import org.springframework.remoting.support.RemoteInvocationResult;
import org.springframework.util.Assert;

/**
 * 
 * @author politics wang
 * @since 2008-11-25
 * 
 */
public class MinaServiceExporter extends RemoteInvocationBasedExporter implements InitializingBean, DisposableBean {

    private IoAcceptor acceptor;

    @Override
    public void afterPropertiesSet() throws Exception {
        prepare();
    }

    private void prepare() throws Exception {
        Assert.notNull(acceptor, "acceptor requried");
        ReturnAddressAwareRemoteInvocationHandler invocationHandler = new MinaRemoteInvocationHandler();
        acceptor.setHandler(new MinaServerHandler(invocationHandler));
        acceptor.bind();
    }

    private class MinaRemoteInvocationHandler implements ReturnAddressAwareRemoteInvocationHandler {
        @Override
        public ReturnAddressAwareRemoteInvocationResult invoke(ReturnAddressAwareRemoteInvocation invocation) {
            RemoteInvocationResult result = invokeAndCreateResult(invocation, getService());
            if (result.hasException()) {
                return new ReturnAddressAwareRemoteInvocationResult(invocation.getReturnAddress(),
                        result.getException());
            }
            return new ReturnAddressAwareRemoteInvocationResult(invocation.getReturnAddress(), result.getValue());
        }
    }

    @Override
    public void destroy() throws Exception {
        acceptor.unbind();
    }

    public void setIoAcceptor(IoAcceptor ioAcceptor) {
        this.acceptor = ioAcceptor;
    }

}