Mapping.java #3

package com.perforce.api;

import java.io.*;
import java.util.*;

/*
 * Copyright (c) 2001, Perforce Software, All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * Representation of a source control mapping. This handles a named set of file
 * mappings.
 *
 * @author <a href="mailto:david@markley.cc">David Markley</a>
 * @version $Date: 2002/08/02 $ $Revision: #3 $
 */
public abstract class Mapping extends SourceControlObject implements Comparable {
  private String name = "";
  private String owner = "";
  private String description = "";
  private Hashtable views;
  private Vector view_list;

  /**
   * Default no-argument constructor.
   */
  public Mapping() {
    super();
    views = new Hashtable();
    view_list = new Vector();
  }

  /**
   * Constructor that is passed the mapping name.
   */
  public Mapping(String name) {
    this();
    setName(name);
  }

  public int compareTo(Object o) {
    return getName().compareTo(((Mapping)o).getName());
  }

  /**
   * Sets the name of the Mapping.
   *
   * @param name  Name of the mapping.
   */
  public void setName(String name) {
    HashDecay mappings = getCache();
    synchronized (mappings) {
      mappings.remove(this.name);
      this.name = name;
      if (null != name && ! name.trim().equals("")) {
	mappings.put(this.name, this);
      }
    }
  }

  /** Returns the name of the Mapping. */
  public String getName() {
    return name;
  }

  /**
   * Sets the owner of the Mapping.
   *
   * @param owner  Owner of the mapping.
   */
  public void setOwner(String owner) {
    this.owner = owner;
  }

  /** Returns the owner of the Mapping. */
  public String getOwner() {
    return owner;
  }

  /**
   * Sets the description for the Mapping.
   *
   * @param description  Description of the mapping.
   */
  public void setDescription(String description) {
    this.description = description;
  }

  /** Returns the Mapping description. */
  public String getDescription() {
    return description;
  }

  /**
   * Add a view to the Mapping.
   *
   * @param view  View for the mapping.
   */
  public synchronized void addView(String from, String to) {
    views.put(from, to);
    if (null == to) {
      view_list.addElement(from);
    } else {
      view_list.addElement(from+" "+to);
    }
  }

  public void addView(String line) {
    int from, to;
    line = line.trim();
    if (-1 == (from = line.indexOf("//"))) return;
    if (-1 == (to = line.lastIndexOf("//"))) return;
    if (from == to) {
      addView(line.substring(0,to).trim(), null);
    } else {
      addView(line.substring(0,to).trim(), line.substring(to-1).trim());
    }
  }

  /**
   * @return String version of all the views in this mapping.
   */
  public synchronized String getView() {
    StringBuffer sb = new StringBuffer();
    Enumeration en = views.keys();
    String key, val;
    while (en.hasMoreElements()) {
      key = (String)en.nextElement();
      val = (String)views.get(key);
      sb.append('\t');
      sb.append(key);
      if (null != val) {
	sb.append(' ');
	sb.append(val);
      }
      sb.append('\n');
    }
    return sb.toString();
  }

  /**
   * @return Enumerated list of the views in this mapping.
   */
  public Enumeration getViews() {
    return view_list.elements();
  }

  /**
   * Returns a list of mappings that begin with the specified prefix.
   *
   * @param prefix  Prefix for all mappings to be returned
   * @return List of mappings matching the prefix.
   */
  public static Enumeration lookupMappings(HashDecay mappings, String prefix) {
    Vector v = new Vector();
    synchronized (mappings) {
      Enumeration en = mappings.keys();
      while (en.hasMoreElements()) {
	String key = (String)en.nextElement();
	if (key.startsWith(prefix)) {
	  v.addElement(key);
	}
      }
    }
    return v.elements();
  }

  /**
   * @return Name of the mapping.
   */
  public String toString() {
    return name;
  }

  public abstract void commit() throws CommitException;

  /**
   * Synchronizes the Mapping with the latest information from P4. This method
   * forces the Mapping to contain the latest, correct information if it didn't
   * already.
   *
   * @param name  Name of the Mapping to synchronize.
   */
  public abstract void sync(String name);

  public String toXML() {
    StringBuffer sb = new StringBuffer("<mappings>");
    Enumeration en = views.keys();
    String key, val;
    while (en.hasMoreElements()) {
      key = (String)en.nextElement();
      val = (String)views.get(key);
      sb.append("<map><from>");
      sb.append(key);
      sb.append("</from>");
      if (null != val) {
	sb.append("<to>");
	sb.append(val);
	sb.append("</to>");
      }
      sb.append("</map>");
    }
    sb.append("</mappings>");
    return sb.toString();
  }
}