Spring Framework example source code file (Hessian2SkeletonInvoker.java)

This example Spring Framework source code file (Hessian2SkeletonInvoker.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

hessian2input, hessian2input, hessian2output, hessian2skeletoninvoker, hessianoutput, inputstream, inputstream, io, ioexception, log, outputstream, outputstream, printwriter, printwriter, serializerfactory

The Spring Framework Hessian2SkeletonInvoker.java source code

/*
 * Copyright 2002-2007 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.springframework.remoting.caucho;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;

import com.caucho.hessian.io.AbstractHessianOutput;
import com.caucho.hessian.io.Hessian2Input;
import com.caucho.hessian.io.Hessian2Output;
import com.caucho.hessian.io.HessianDebugInputStream;
import com.caucho.hessian.io.HessianDebugOutputStream;
import com.caucho.hessian.io.HessianOutput;
import com.caucho.hessian.io.SerializerFactory;
import com.caucho.hessian.server.HessianSkeleton;
import org.apache.commons.logging.Log;

import org.springframework.util.CommonsLogWriter;

/**
 * Concrete HessianSkeletonInvoker for the Hessian 2 protocol
 * (version 3.0.20 or higher).
 *
 * @author Juergen Hoeller
 * @author Andy Piper
 * @since 2.0
 */
class Hessian2SkeletonInvoker extends HessianSkeletonInvoker {

	private final Log debugLogger;

	public Hessian2SkeletonInvoker(HessianSkeleton skeleton, SerializerFactory serializerFactory, Log debugLog) {
		super(skeleton, serializerFactory);
		this.debugLogger = debugLog;
	}

	public void invoke(final InputStream inputStream, final OutputStream outputStream) throws Throwable {
		InputStream isToUse = inputStream;
		OutputStream osToUse = outputStream;

		if (this.debugLogger != null && this.debugLogger.isDebugEnabled()) {
			PrintWriter debugWriter = new PrintWriter(new CommonsLogWriter(this.debugLogger));
			isToUse = new HessianDebugInputStream(inputStream, debugWriter);
			osToUse = new HessianDebugOutputStream(outputStream, debugWriter);
		}

		Hessian2Input in = new Hessian2Input(isToUse);
		if (this.serializerFactory != null) {
			in.setSerializerFactory(this.serializerFactory);
		}

		int code = in.read();
		if (code != 'c') {
			throw new IOException("expected 'c' in hessian input at " + code);
		}

		AbstractHessianOutput out = null;
		int major = in.read();
		int minor = in.read();
		if (major >= 2) {
			out = new Hessian2Output(osToUse);
		}
		else {
			out = new HessianOutput(osToUse);
		}
		if (this.serializerFactory != null) {
			out.setSerializerFactory(this.serializerFactory);
		}

		this.skeleton.invoke(in, out);
	}

}