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.condition;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.util.FileUtils;
  
  /**
   * Compares two files for equality based on size and
   * content. Timestamps are not at all looked at.
   *
   * @since Ant 1.5
   */
  
  public class FilesMatch implements Condition {
  
      /**
       * Helper that provides the file comparison method.
       */
      private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
  
      /**
       * files to compare
       */
      private File file1, file2;
  
      private boolean textfile = false;
  
      /**
       * Sets the File1 attribute
       *
       * @param file1 The new File1 value
       */
      public void setFile1(File file1) {
          this.file1 = file1;
      }
  
      /**
       * Sets the File2 attribute
       *
       * @param file2 The new File2 value
       */
      public void setFile2(File file2) {
          this.file2 = file2;
      }
  
      /**
       * Set whether to ignore line endings when comparing files.
       * @param textfile whether to ignore line endings.
       */
      public void setTextfile(boolean textfile) {
          this.textfile = textfile;
      }
  
      /**
       * comparison method of the interface
       *
       * @return true if the files are equal
       * @exception BuildException if it all went pear-shaped
       */
      @Override
      public boolean eval()
          throws BuildException {
  
          //validate
          if (file1 == null || file2 == null) {
              throw new BuildException(
                  "both file1 and file2 are required in filesmatch");
          }
  
          //#now match the files
          boolean matches = false;
          try {
              matches = FILE_UTILS.contentEquals(file1, file2, textfile);
          } catch (IOException ioe) {
              throw new BuildException("when comparing files: "
                  + ioe.getMessage(), ioe);
          }
          return matches;
      }
  }
  