/*
 * 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", "Ant", 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"
 *    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.tools.ant.taskdefs;

import java.io.*;
import java.util.*;
import org.apache.tools.ant.*;
import org.apache.tools.ant.types.EnumeratedAttribute;

/**
 * ProjectImport
 *
 * @author tdawson@apache.org
 */
public class ProjectImport extends Task
  {
  protected String file = null;

  /**
   * Does the work.
   *
   * @exception BuildException if someting goes wrong with the build
   */
  public void execute() throws BuildException
    {
    if (file == null)
        {
        log("'file' is a required attribute of tasklib");
        }
    else
        {
        Project p1 = new Project();
        Hashtable taskdefs = project.getTaskDefinitions();
        Enumeration et = taskdefs.keys();
        while (et.hasMoreElements()) {
            String taskName = (String) et.nextElement();
            Class taskClass = (Class) taskdefs.get(taskName);
            p1.addTaskDefinition(taskName, taskClass);
        }

        Hashtable typedefs = project.getDataTypeDefinitions();
        Enumeration e = typedefs.keys();
        while (e.hasMoreElements()) {
            String typeName = (String) e.nextElement();
            Class typeClass = (Class) typedefs.get(typeName);
            p1.addDataTypeDefinition(typeName, typeClass);
        }

        ProjectHelper.configureProject(p1, new File(file));
        for (Enumeration enum = p1.getTargets().keys(); enum.hasMoreElements(); )
            {
            String key = (String)enum.nextElement();
            Ant caller = new Ant();
            caller.setAntfile(file);
            caller.setTarget(key);
            caller.setProject(project);
            Target wrapper = new Target();
            wrapper.setProject(project);
            wrapper.addTask(caller);
            caller.setOwningTarget(wrapper);
            wrapper.setName(key);
            project.addTarget(key,wrapper);
            }
        }
    }

  /**
   * Sets the file attribute.
   */
  public void setFile(String file)
    {
    this.file = file;
    }
  }