v2/src/binding/org/apache/xmlbeans/impl/binding/joust/FileWriterFactory.java

/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2003 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 acknowledgment:
*       "This product includes software developed by the
*        Apache Software Foundation (http://www.apache.org/)."
*    Alternately, this acknowledgment may appear in the software itself,
*    if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" 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 apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache
*    XMLBeans", nor may "Apache" appear in their name, without prior
*    written permission of the Apache Software Foundation.
*
* 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 and was
* originally based on software copyright (c) 2003 BEA Systems
* Inc., <http://www.bea.com/>. For more information on the Apache Software
* Foundation, please see <http://www.apache.org/>.
*/
package org.apache.xmlbeans.impl.binding.joust;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

/**
 * Implementation of WriterFactory which creates files for new classes under
 * a specified source root.
 */
public class FileWriterFactory implements WriterFactory {

  // ========================================================================
  // Constants

  // might need to make this settable someday
  private static final String EXTENSION = ".java";
  private static final char PACKAGE_SEPARATOR = '.';

  // ========================================================================
  // Variables

  private File mSourceRoot;

  // ========================================================================
  // Constructors

  public FileWriterFactory(File sourceRoot) {
    if (sourceRoot == null) throw new IllegalArgumentException();
    mSourceRoot = sourceRoot;
  }

  // ========================================================================
  // WriterFactory implementation

  public Writer createWriter(String packageName, String className)
          throws IOException {
    return new FileWriter(createFile(packageName,className));
  }

  // ========================================================================
  // Public methods

  /**
   * Returns the raw file instead, in case the caller is clever and knows we
   * are a FileWriterFactory.
   */
  public File createFile(String packageName, String className)
          throws IOException
  {
    File dir = new File(mSourceRoot, packageName.replace
                                     (PACKAGE_SEPARATOR, File.separatorChar));
    if (!dir.exists()) {
      if (!dir.mkdirs()) {
        throw new IOException("Failed to create directory " + dir);
      }
    }
    return new File(dir, className + EXTENSION);
  }
}