src/charactermanaj/util/SetupLocalization.java

   1 package charactermanaj.util;\r
   2 \r
   3 import java.io.BufferedReader;\r
   4 import java.io.File;\r
   5 import java.io.FileOutputStream;\r
   6 import java.io.IOException;\r
   7 import java.io.InputStream;\r
   8 import java.io.InputStreamReader;\r
   9 import java.io.OutputStream;\r
  10 import java.net.URL;\r
  11 import java.net.URLConnection;\r
  12 import java.util.ArrayList;\r
  13 import java.util.Collection;\r
  14 import java.util.logging.Level;\r
  15 import java.util.logging.Logger;\r
  16 \r
  17 import charactermanaj.Main;\r
  18 \r
  19 /**\r
  20  * 言語リソースを管理する.\r
  21  * @author seraphy\r
  22  */\r
  23 public class SetupLocalization extends ResourceLoader {\r
  24         \r
  25         private final Logger logger = Logger.getLogger(getClass().getName());\r
  26         \r
  27         public static final String DIRNAME_RESOURCES = "resources";\r
  28         \r
  29         public static final String CATALOG_NAME = "/resource_list.txt";\r
  30         \r
  31         private File baseDir;\r
  32         \r
  33         /**\r
  34          * アプリケーションデータ用ディレクトリを指定して構築する.\r
  35          * @param baseDir データディレクトリ\r
  36          */\r
  37         public SetupLocalization(File baseDir) {\r
  38                 if (baseDir == null || !baseDir.isDirectory()) {\r
  39                         throw new IllegalArgumentException();\r
  40                 }\r
  41                 this.baseDir = baseDir;\r
  42         }\r
  43         \r
  44         /**\r
  45          * リソース一覧を取得する.<br>\r
  46          * クラスパス上の一覧を取得する汎用的な方法はないため、カタログファイルを使用する.<br>\r
  47          * {@link #CATALOG_NAME}で示されるリソース上のファイルにリソース一覧が記録されているものとする.<br>\r
  48          * @return リソース一覧(言語関連リソースのみ)\r
  49          * @throws IOException 失敗\r
  50          */\r
  51         protected Collection<String> getResourceList() throws IOException {\r
  52                 ArrayList<String> resources = new ArrayList<String>();\r
  53                 URL listURL = Main.class.getResource(CATALOG_NAME);\r
  54                 InputStream is = listURL.openStream();\r
  55                 try {\r
  56                         BufferedReader rd = new BufferedReader(new InputStreamReader(is));\r
  57                         try {\r
  58                                 String line;\r
  59                                 while ((line = rd.readLine()) != null) {\r
  60                                         line = line.trim();\r
  61                                         if (line.startsWith("#")) {\r
  62                                                 continue;\r
  63                                         }\r
  64                                         resources.add(line);\r
  65                                 }\r
  66                                 \r
  67                         } finally {\r
  68                                 rd.close();\r
  69                         }\r
  70                 } finally {\r
  71                         is.close();\r
  72                 }\r
  73                 logger.log(Level.FINE, "resource list: " +resources);\r
  74                 return resources;\r
  75         }\r
  76         \r
  77         /**\r
  78          * リソースをファイルにコピーする.<br>\r
  79          * @param fromURL\r
  80          * @param toFile\r
  81          * @throws IOException\r
  82          */\r
  83         protected void copyResource(URL fromURL, File toFile) throws IOException {\r
  84                 logger.log(Level.INFO, "copy resource '" + fromURL + "' to '" + toFile + "'");\r
  85                 File dir = toFile.getParentFile();\r
  86                 if ( !dir.exists()) {\r
  87                         if ( !dir.mkdirs()) {\r
  88                                 throw new IOException("can't create directory. " + dir);\r
  89                         }\r
  90                 }\r
  91 \r
  92                 URLConnection conn = fromURL.openConnection();\r
  93                 conn.setDoInput(true);\r
  94                 InputStream is = conn.getInputStream();\r
  95                 try {\r
  96                         long lastModified = conn.getLastModified();\r
  97                         OutputStream os = new FileOutputStream(toFile);\r
  98                         try {\r
  99                                 byte[] buf = new byte[4096];\r
 100                                 for (;;) {\r
 101                                         int rd = is.read(buf);\r
 102                                         if (rd <= 0) {\r
 103                                                 break;\r
 104                                         }\r
 105                                         os.write(buf, 0, rd);\r
 106                                 }\r
 107                         } finally {\r
 108                                 os.close();\r
 109                         }\r
 110                         toFile.setLastModified(lastModified);\r
 111                 } finally {\r
 112                         is.close();\r
 113                 }\r
 114         }\r
 115         \r
 116         /**\r
 117          * リソースディレクトリを返す.\r
 118          * @return リソースディレクトリ\r
 119          */\r
 120         public File getResourceDir() {\r
 121                 return new File(baseDir, DIRNAME_RESOURCES);\r
 122         }\r
 123         \r
 124         /**\r
 125          * ローカルシステム上のアプリケーションデータディレクトリに言語リソースをコピーする.\r
 126          * @throws IOException 失敗\r
 127          */\r
 128         public void setupToLocal() throws IOException {\r
 129                 File toDir = getResourceDir();\r
 130                 ClassLoader cl = getDefaultClassLoader();\r
 131                 for (String resourceName : getResourceList()) {\r
 132                         URL url = cl.getResource(resourceName);\r
 133                         if (url != null) {\r
 134                                 File toFile = new File(toDir, resourceName).getCanonicalFile();\r
 135                                 copyResource(url, toFile);\r
 136 \r
 137                         } else {\r
 138                                 logger.log(Level.WARNING, "missing resource: " + resourceName);\r
 139                         }\r
 140                 }\r
 141         }\r
 142 }\r