/**
    *    Copyright 2009-2015 the original author or authors.
    *
    *    Licensed 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
    *
    *       http://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.ibatis.io;
  
  import java.io.Closeable;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.nio.channels.FileChannel;
  import java.util.Properties;
  
  /**
   * @author Clinton Begin
   */
  public class ExternalResources {
  
    private ExternalResources() {
      // do nothing
    }
  
    public static void copyExternalResource(File sourceFile, File destFile) throws IOException {
      if (!destFile.exists()) {
        destFile.createNewFile();
      }
  
      FileChannel source = null;
      FileChannel destination = null;
      try {
        source = new FileInputStream(sourceFile).getChannel();
        destination = new FileOutputStream(destFile).getChannel();
        destination.transferFrom(source, 0, source.size());
      } finally {
        closeQuietly(source);
        closeQuietly(destination);
      }
  
    }
  
    private static void closeQuietly(Closeable closeable) {
      if (closeable != null) {
        try {
          closeable.close();
        } catch (IOException e) {
          // do nothing, close quietly
        }
      }
    }
  
    public static String getConfiguredTemplate(String templatePath, String templateProperty) throws FileNotFoundException {
      String templateName = "";
      Properties migrationProperties = new Properties();
  
      try {
        migrationProperties.load(new FileInputStream(templatePath));
        templateName = migrationProperties.getProperty(templateProperty);
      } catch (FileNotFoundException e) {
        throw e;
      } catch (Exception e) {
        e.printStackTrace();
      }
  
      return templateName;
    }
  
  }