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The core functionality of the CodeModel Java source code generation library
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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package com.sun.codemodel.writer;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

import com.sun.codemodel.CodeWriter;
import com.sun.codemodel.JPackage;

/**
 * Output all source files into a single stream with a little
 * formatting header in front of each file.
 * 
 * This is primarily for human consumption of the generated source
 * code, such as to debug/test CodeModel or to quickly inspect the result.
 * 
 * @author
 * 	Kohsuke Kawaguchi ([email protected])
 */
public class SingleStreamCodeWriter extends CodeWriter {
    
    private final PrintStream out;
    
    /**
     * @param os
     *      This stream will be closed at the end of the code generation.
     */
    public SingleStreamCodeWriter( OutputStream os ) {
        out = new PrintStream(os);
    }

    public OutputStream openBinary(JPackage pkg, String fileName) throws IOException {
        String pkgName = pkg.name();
        if(pkgName.length()!=0)     pkgName += '.';
        
        out.println(
            "-----------------------------------" + pkgName+fileName +
            "-----------------------------------");
            
        return new FilterOutputStream(out) {
            public void close() {
                // don't let this stream close
            }
        };
    }

    public void close() throws IOException {
        out.close();
    }

}