package jp.co.y_net.amm.tools;

 import java.io.BufferedReader;

 import java.io.BufferedWriter;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.io.InputStreamReader;

 import java.io.OutputStream;

 import java.io.OutputStreamWriter;

 import java.io.Writer;

 import java.nio.channels.FileChannel;

 import java.nio.charset.Charset;

 import java.util.ArrayList;

 import java.util.List;

 public class ResourceCopy {

     public static void main(String[] args) {

     }

     /*

      * 〓〓 以下、共通部品 〓〓

      */

     /**

      * チャネルを利用したファイルのコピー処理

      * 

      * @param formFile コピー元

      * @param toFileName コピー先

      */

     public static void copy(File formFile, String toFileName) {

         FileChannel ifc = null;

         FileChannel ofc = null;

         FileInputStream fis = null;

         FileOutputStream fos = null;

         try {

             /* 入力元ファイルストリームからチャネル取得 */

             fis = new FileInputStream(formFile);

             ifc = fis.getChannel();

             /* 出力先ファイルチャネル取得 */

             File outFile = new File(toFileName);

             fos = new FileOutputStream(outFile);

             ofc = fos.getChannel();

             /* バイト転送 */

             ifc.transferTo(0, ifc.size(), ofc);

         } catch (IOException e) {

             throw new RuntimeException(e);

         } finally {

             try {

                 if (ifc != null)

                     ifc.close();

                 if (fis != null)

                     fis.close();

                 if (ofc != null)

                     ofc.close();

                 if (fos != null)

                     fos.close();

             } catch (IOException e) {

                 throw new RuntimeException(e);

             }

         }

     }

     /**

      * テキストファイルを読み込む

      * 

      * @param filepath

      * @param charsetName 例:"UTF-8"

      * @return List<String>

      */

     private static List<String> readText(String filepath, String charsetName) {

         List<String> result = new ArrayList<String>();

         FileInputStream is = null;

         InputStreamReader r = null;

         BufferedReader br = null;

         try {

             is = new FileInputStream(filepath);

             r = new InputStreamReader(is, Charset.forName(charsetName));

             br = new BufferedReader(r);

             // int ch;

             // while ((ch = in.read()) != -1) {

             String line;

             while ((line = br.readLine()) != null) {

                 result.add(line);

             }

         } catch (IOException e) {

             throw new RuntimeException(e);

         } finally {

             try {

                 if (br != null)

                     br.close();

                 if (r != null)

                     r.close();

                 if (is != null)

                     is.close();

             } catch (IOException e) {

                 throw new RuntimeException(e);

             }

         }

         return result;

     }

     public static List<String> readText(String filepath) {

         return readText(filepath, "UTF-8");

     }

     /**

      * テキストファイルを書き出す

      * 

      * @param filepath

      * @param charsetName 例:"UTF-8"

      * @param text

      */

     private static void writeText(String filepath, String charsetName, List<String> text) {

         File f = new File(filepath);

         OutputStream os = null;

         Writer w = null;

         BufferedWriter bw = null;

         try {

             os = new FileOutputStream(f);

             w = new OutputStreamWriter(os, charsetName);

             bw = new BufferedWriter(w);

             for (String line : text) {

                 bw.write(line);

                 bw.newLine();

                 // bw.flush();

             }

         } catch (Exception e) {

             throw new RuntimeException(e);

         } finally {

             try {

                 if (bw != null)

                     bw.close();

                 if (w != null)

                     w.close();

                 if (os != null)

                     os.close();

             } catch (IOException e) {

                 throw new RuntimeException(e);

             }

         }

     }

     public static void writeText(String filepath, List<String> string) {

         writeText(filepath, "UTF-8", string);

     }

 }