/**
    * Copyright 2011 The Kuali Foundation Licensed under the
    * Educational Community 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
    *
    * http://www.osedu.org/licenses/ECL-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.kuali.common.util.execute;
  
  import org.kuali.common.util.Assert;
  import org.kuali.common.util.CollectionUtils;
  import org.kuali.common.util.LocationUtils;
  import org.kuali.common.util.SimpleScanner;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * File copying executable that uses simple patterns to copy files from one directory to another
   *
   * @author andrewlubbers
   */
  public class FileCopyExecutable implements Executable {
  
      private static final Logger logger = LoggerFactory.getLogger(FileCopyExecutable.class);
  
      private String sourceDir;
      private String filePatterns;
      private String destinationDir;
  
      @Override
      public void execute() {
          Assert.isTrue(LocationUtils.exists(sourceDir));
          Assert.notNull(destinationDir);
          Assert.notNull(filePatterns);
  
          String sourceDirPath = LocationUtils.getCanonicalPath(new File(sourceDir));
  
          logger.info("Starting File Copy");
          logger.info("From: " + sourceDirPath);
          logger.info("To: " + destinationDir);
          logger.info("Using patterns: " + filePatterns);
  
          List<String> patterns = CollectionUtils.getTrimmedListFromCSV(filePatterns);
  
          SimpleScanner scanner = new SimpleScanner();
          scanner.setBasedir(sourceDir);
          scanner.setIncludes(patterns.toArray(new String[patterns.size()]));
  
          List<File> sourceFiles = scanner.getFiles();
          logger.info("Found " + sourceFiles.size() + " matching source files.");
  
  
          List<String> sourceLocations = new ArrayList<String>(sourceFiles.size());
          List<File> destinationFiles = new ArrayList<File>(sourceFiles.size());
          for(File f : sourceFiles) {
              String sourcePath = LocationUtils.getCanonicalPath(f);
              sourceLocations.add(sourcePath);
  
              String destinationPath = sourcePath.replace(sourceDirPath, (destinationDir + File.separator));
              destinationFiles.add(new File(destinationPath));
          }
  
          LocationUtils.copyLocationsToFiles(sourceLocations, destinationFiles);
  
          logger.info("File Copy Complete");
      }
  
      public String getDestinationDir() {
          return destinationDir;
      }
  
      public void setDestinationDir(String destinationDir) {
          this.destinationDir = destinationDir;
      }
  
      public String getFilePatterns() {
          return filePatterns;
      }
  
      public void setFilePatterns(String filePatterns) {
          this.filePatterns = filePatterns;
      }
  
      public String getSourceDir() {
          return sourceDir;
      }
  
     public void setSourceDir(String sourceDir) {
         this.sourceDir = sourceDir;
     }
 }