content: /*
   *  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
   *
   *      https://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.cvslib;
  
  /**
   * Holds the information of a line of rdiff
   */
  public class CvsTagEntry {
  
      /** the filename */
      private String filename;
  
      /** the previous revision */
      private String prevRevision;
  
      /** the revision */
      private String revision;
  
      /**
       * Creates a new CvsTagEntry
       * @param filename the filename to add
       */
      public CvsTagEntry(final String filename) {
          this(filename, null, null);
      }
  
      /**
       * Creates a new CvsTagEntry
       * @param filename the filename to add
       * @param revision the revision
       */
      public CvsTagEntry(final String filename, final String revision) {
          this(filename, revision, null);
      }
  
      /**
       * Creates a new CvsTagEntry
       * @param filename the filename to add
       * @param revision the revision
       * @param prevRevision the previous revision
       */
      public CvsTagEntry(final String filename, final String revision,
                         final String prevRevision) {
          this.filename = filename;
          this.revision = revision;
          this.prevRevision = prevRevision;
      }
  
      /**
       * Gets the filename for this CvsTagEntry
       * @return the filename
       */
      public String getFile() {
          return filename;
      }
  
      /**
       * Gets the revision for this CvsTagEntry
       * @return the revision
       */
      public String getRevision() {
          return revision;
      }
  
      /**
       * Gets the previous revision for this CvsTagEntry
       * @return the previous revision
       */
      public String getPreviousRevision() {
          return prevRevision;
      }
  
      /**
       * Gets a String containing filename and difference from previous version
       * @return a string representation of this CVSTagEntry
       */
      @Override
      public String toString() {
          StringBuilder buffer = new StringBuilder();
          buffer.append(filename);
          if (revision == null) {
              buffer.append(" was removed");
              if (prevRevision != null) {
                  buffer.append("; previous revision was ").append(prevRevision);
              }
          } else if (prevRevision == null) {
              buffer.append(" is new; current revision is ")
                  .append(revision);
          } else {
              buffer.append(" has changed from ")
                  .append(prevRevision).append(" to ").append(revision);
          }
          return buffer.toString();
      }
  }
  