antliscence/src/main/org/apache/tools/ant/taskdefs/Mkdir.java

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000,2002 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.
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 * 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.tools.ant.taskdefs;

import java.io.File;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;

/**
 * Creates a given directory.
 * Creates a directory and any non-existent parent directories, when
 * necessary
 *
 * @author duncan@x180.com
 * @since Ant 1.1
 *
 * @ant.task category="filesystem"
 */

public class Mkdir extends Task {

    /**
     * our little directory
     */
    private File dir;

    /**
     * create the directory and all parents
     * @throws BuildException if dir is somehow invalid, or creation failed.
     */
    public void execute() throws BuildException {
        if (dir == null) {
            throw new BuildException("dir attribute is required", getLocation());
        }

        if (dir.isFile()) {
            throw new BuildException("Unable to create directory as a file "
                                     + "already exists with that name: " 
                                     + dir.getAbsolutePath());
        }

        if (!dir.exists()) {
            boolean result = dir.mkdirs();
            if (!result) {
                String msg = "Directory " + dir.getAbsolutePath() 
                    + " creation was not successful for an unknown reason";
                throw new BuildException(msg, getLocation());
            }
            log("Created dir: " + dir.getAbsolutePath());
        }
    }

    /**
     * the directory to create; required.
     * @param dir
     */
    public void setDir(File dir) {
        this.dir = dir;
    }
}