Ant example source code file (Jvc.java)

This example Ant source code file (Jvc.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 - Ant tags/keywords

buildexception, buildexception, commandline, commandline, defaultcompileradapter, jvc, o, path, path, string, string, using

The Jvc.java source code

/*
 *  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 org.apache.tools.ant.taskdefs.compilers;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.types.Path;

/**
 * The implementation of the jvc compiler from microsoft.
 * This is primarily a cut-and-paste from the original javac task before it
 * was refactored.
 *
 * @since Ant 1.3
 */
public class Jvc extends DefaultCompilerAdapter {

    /**
     * Run the compilation.
     * @return true if the compiler ran with a zero exit result (ok)
     * @exception BuildException if the compilation has problems.
     */
    public boolean execute() throws BuildException {
        attributes.log("Using jvc compiler", Project.MSG_VERBOSE);

        Path classpath = new Path(project);

        // jvc doesn't support bootclasspath dir (-bootclasspath)
        // so we'll emulate it for compatibility and convenience.
        Path p = getBootClassPath();
        if (p.size() > 0) {
            classpath.append(p);
        }

        if (includeJavaRuntime) {
            // jvc doesn't support an extension dir (-extdir)
            // so we'll emulate it for compatibility and convenience.
            classpath.addExtdirs(extdirs);
        }

        classpath.append(getCompileClasspath());

        // jvc has no option for source-path so we
        // will add it to classpath.
        if (compileSourcepath != null) {
            classpath.append(compileSourcepath);
        } else {
            classpath.append(src);
        }

        Commandline cmd = new Commandline();
        String exec = getJavac().getExecutable();
        cmd.setExecutable(exec == null ? "jvc" : exec);

        if (destDir != null) {
            cmd.createArgument().setValue("/d");
            cmd.createArgument().setFile(destDir);
        }

        // Add the Classpath before the "internal" one.
        cmd.createArgument().setValue("/cp:p");
        cmd.createArgument().setPath(classpath);

        boolean msExtensions = true;
        String mse = getProject().getProperty("build.compiler.jvc.extensions");
        if (mse != null) {
            msExtensions = Project.toBoolean(mse);
        }

        if (msExtensions) {
            // Enable MS-Extensions and ...
            cmd.createArgument().setValue("/x-");
            // ... do not display a Message about this.
            cmd.createArgument().setValue("/nomessage");
        }

        // Do not display Logo
        cmd.createArgument().setValue("/nologo");

        if (debug) {
            cmd.createArgument().setValue("/g");
        }
        if (optimize) {
            cmd.createArgument().setValue("/O");
        }
        if (verbose) {
            cmd.createArgument().setValue("/verbose");
        }

        addCurrentCompilerArgs(cmd);

        int firstFileName = cmd.size();
        logAndAddFilesToCompile(cmd);

        return
            executeExternalCompile(cmd.getCommandline(), firstFileName) == 0;
    }
}