sunjavacompiler.java

低版本的tomcat 对于有些老版本的应用还真的需要老版的中间件

/*
 * $Header: /home/cvs/jakarta-tomcat/src/share/org/apache/jasper/compiler/SunJavaCompiler.java,v 1.2.4.1 2001/01/12 04:46:59 larryi Exp $
 * $Revision: 1.2.4.1 $
 * $Date: 2001/01/12 04:46:59 $
 *
 * ====================================================================
 * 
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written 
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */ 

package org.apache.jasper.compiler;

import java.io.OutputStream;
import sun.tools.javac.Main;

/**
 * The default compiler. This is the javac present in JDK 1.1.x and
 * JDK 1.2.  
 *
 * At some point we need to make sure there is a class like this for
 * JDK 1.3, and other javac-like animals that people want to use. 
 *
 * @author Anil K. Vijendran
 */
public class SunJavaCompiler implements JavaCompiler {

    String encoding;
    String classpath; // ignored
    String compilerPath;
    String outdir;
    OutputStream out;
    boolean classDebugInfo=false;

    /**
     * Specify where the compiler can be found
     */ 
    public void setCompilerPath(String compilerPath) {
        // not used by the SunJavaCompiler
	this.compilerPath = compilerPath;
    }

    /**
     * Set the encoding (character set) of the source
     */ 
    public void setEncoding(String encoding) {
      this.encoding = encoding;
    }

    /**
     * Set the class path for the compiler
     */ 
    public void setClasspath(String classpath) {
      this.classpath = classpath;
    }

    /**
     * Set the output directory
     */ 
    public void setOutputDir(String outdir) {
      this.outdir = outdir;
    }

    /**
     * Set where you want the compiler output (messages) to go 
     */ 
    public void setMsgOutput(OutputStream out) {
      this.out = out;
    }

    /**
     * Set where you want the compiler output (messages) to go 
     */ 
    public void setOut(OutputStream out) {
        this.out = out;
    }
    
    /**
     * Set if you want debugging information in the class file 
     */ 
    public void setClassDebugInfo(boolean classDebugInfo) {
        this.classDebugInfo = classDebugInfo;
    }

    public boolean compile(String source) {
        Main compiler = new Main(out, "jsp->javac");
        String[] args;

        if (classDebugInfo) {
            args = new String[]
            {
                "-g",
                "-encoding", encoding,
                "-classpath", classpath,
                "-d", outdir,
                source
            };
	} else {
            args = new String[]
            {
                "-encoding", encoding,
                "-classpath", classpath,
                "-d", outdir,
                source
            };
        }

        return compiler.compile(args);
    }
}