jdk8-mips64-public/jaxws: src/share/jaf_classes/javax/activation/MimetypesFileTypeMap.java@373ffda63c9a (annotated)

src/share/jaf_classes/javax/activation/MimetypesFileTypeMap.java@373ffda63c9a (annotated)

src/share/jaf_classes/javax/activation/MimetypesFileTypeMap.java

Wed, 27 Apr 2016 01:27:09 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:27:09 +0800
changeset 0: 373ffda63c9a
child 637: 9c07ef4934dd
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17

 /*
  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package javax.activation;
 import java.io.*;
 import java.net.*;
 import java.util.*;
 import com.sun.activation.registries.MimeTypeFile;
 import com.sun.activation.registries.LogSupport;
 /**
  * This class extends FileTypeMap and provides data typing of files
  * via their file extension. It uses the <code>.mime.types</code> format. <p>
  *
  * <b>MIME types file search order:</b><p>
  * The MimetypesFileTypeMap looks in various places in the user's
  * system for MIME types file entries. When requests are made
  * to search for MIME types in the MimetypesFileTypeMap, it searches
  * MIME types files in the following order:
  * <p>
  * <ol>
  * <li> Programmatically added entries to the MimetypesFileTypeMap instance.
  * <li> The file <code>.mime.types</code> in the user's home directory.
  * <li> The file &lt;<i>java.home</i>&gt;<code>/lib/mime.types</code>.
  * <li> The file or resources named <code>META-INF/mime.types</code>.
  * <li> The file or resource named <code>META-INF/mimetypes.default</code>
  * (usually found only in the <code>activation.jar</code> file).
  * </ol>
  * <p>
  * <b>MIME types file format:</b><p>
  *
  * <code>
  * # comments begin with a '#'<br>
  * # the format is &lt;mime type> &lt;space separated file extensions><br>
  * # for example:<br>
  * text/plain    txt text TXT<br>
  * # this would map file.txt, file.text, and file.TXT to<br>
  * # the mime type "text/plain"<br>
  * </code>
  *
  * @author Bart Calder
  * @author Bill Shannon
  *
  * @since 1.6
  */
 public class MimetypesFileTypeMap extends FileTypeMap {
     /*
      * We manage a collection of databases, searched in order.
      */
     private MimeTypeFile[] DB;
     private static final int PROG = 0;  // programmatically added entries
     private static String defaultType = "application/octet-stream";
     /**
      * The default constructor.
      */
     public MimetypesFileTypeMap() {
         Vector dbv = new Vector(5);     // usually 5 or less databases
         MimeTypeFile mf = null;
         dbv.addElement(null);           // place holder for PROG entry
         LogSupport.log("MimetypesFileTypeMap: load HOME");
         try {
             String user_home = System.getProperty("user.home");
             if (user_home != null) {
                 String path = user_home + File.separator + ".mime.types";
                 mf = loadFile(path);
                 if (mf != null)
                     dbv.addElement(mf);
             }
         } catch (SecurityException ex) {}
         LogSupport.log("MimetypesFileTypeMap: load SYS");
         try {
             // check system's home
             String system_mimetypes = System.getProperty("java.home") +
                 File.separator + "lib" + File.separator + "mime.types";
             mf = loadFile(system_mimetypes);
             if (mf != null)
                 dbv.addElement(mf);
         } catch (SecurityException ex) {}
         LogSupport.log("MimetypesFileTypeMap: load JAR");
         // load from the app's jar file
         loadAllResources(dbv, "META-INF/mime.types");
         LogSupport.log("MimetypesFileTypeMap: load DEF");
         mf = loadResource("/META-INF/mimetypes.default");
         if (mf != null)
             dbv.addElement(mf);
         DB = new MimeTypeFile[dbv.size()];
         dbv.copyInto(DB);
     }
     /**
      * Load from the named resource.
      */
     private MimeTypeFile loadResource(String name) {
         InputStream clis = null;
         try {
             clis = SecuritySupport.getResourceAsStream(this.getClass(), name);
             if (clis != null) {
                 MimeTypeFile mf = new MimeTypeFile(clis);
                 if (LogSupport.isLoggable())
                     LogSupport.log("MimetypesFileTypeMap: successfully " +
                         "loaded mime types file: " + name);
                 return mf;
             } else {
                 if (LogSupport.isLoggable())
                     LogSupport.log("MimetypesFileTypeMap: not loading " +
                         "mime types file: " + name);
             }
         } catch (IOException e) {
             if (LogSupport.isLoggable())
                 LogSupport.log("MimetypesFileTypeMap: can't load " + name, e);
         } catch (SecurityException sex) {
             if (LogSupport.isLoggable())
                 LogSupport.log("MimetypesFileTypeMap: can't load " + name, sex);
         } finally {
             try {
                 if (clis != null)
                     clis.close();
             } catch (IOException ex) { }        // ignore it
         }
         return null;
     }
     /**
      * Load all of the named resource.
      */
     private void loadAllResources(Vector v, String name) {
         boolean anyLoaded = false;
         try {
             URL[] urls;
             ClassLoader cld = null;
             // First try the "application's" class loader.
             cld = SecuritySupport.getContextClassLoader();
             if (cld == null)
                 cld = this.getClass().getClassLoader();
             if (cld != null)
                 urls = SecuritySupport.getResources(cld, name);
             else
                 urls = SecuritySupport.getSystemResources(name);
             if (urls != null) {
                 if (LogSupport.isLoggable())
                     LogSupport.log("MimetypesFileTypeMap: getResources");
                 for (int i = 0; i < urls.length; i++) {
                     URL url = urls[i];
                     InputStream clis = null;
                     if (LogSupport.isLoggable())
                         LogSupport.log("MimetypesFileTypeMap: URL " + url);
                     try {
                         clis = SecuritySupport.openStream(url);
                         if (clis != null) {
                             v.addElement(new MimeTypeFile(clis));
                             anyLoaded = true;
                             if (LogSupport.isLoggable())
                                 LogSupport.log("MimetypesFileTypeMap: " +
                                     "successfully loaded " +
                                     "mime types from URL: " + url);
                         } else {
                             if (LogSupport.isLoggable())
                                 LogSupport.log("MimetypesFileTypeMap: " +
                                     "not loading " +
                                     "mime types from URL: " + url);
                         }
                     } catch (IOException ioex) {
                         if (LogSupport.isLoggable())
                             LogSupport.log("MimetypesFileTypeMap: can't load " +
                                                 url, ioex);
                     } catch (SecurityException sex) {
                         if (LogSupport.isLoggable())
                             LogSupport.log("MimetypesFileTypeMap: can't load " +
                                                 url, sex);
                     } finally {
                         try {
                             if (clis != null)
                                 clis.close();
                         } catch (IOException cex) { }
                     }
                 }
             }
         } catch (Exception ex) {
             if (LogSupport.isLoggable())
                 LogSupport.log("MimetypesFileTypeMap: can't load " + name, ex);
         }
         // if failed to load anything, fall back to old technique, just in case
         if (!anyLoaded) {
             LogSupport.log("MimetypesFileTypeMap: !anyLoaded");
             MimeTypeFile mf = loadResource("/" + name);
             if (mf != null)
                 v.addElement(mf);
         }
     }
     /**
      * Load the named file.
      */
     private MimeTypeFile loadFile(String name) {
         MimeTypeFile mtf = null;
         try {
             mtf = new MimeTypeFile(name);
         } catch (IOException e) {
             //  e.printStackTrace();
         }
         return mtf;
     }
     /**
      * Construct a MimetypesFileTypeMap with programmatic entries
      * added from the named file.
      *
      * @param mimeTypeFileName  the file name
      */
     public MimetypesFileTypeMap(String mimeTypeFileName) throws IOException {
         this();
         DB[PROG] = new MimeTypeFile(mimeTypeFileName);
     }
     /**
      * Construct a MimetypesFileTypeMap with programmatic entries
      * added from the InputStream.
      *
      * @param is        the input stream to read from
      */
     public MimetypesFileTypeMap(InputStream is) {
         this();
         try {
             DB[PROG] = new MimeTypeFile(is);
         } catch (IOException ex) {
             // XXX - really should throw it
         }
     }
     /**
      * Prepend the MIME type values to the registry.
      *
      * @param mime_types A .mime.types formatted string of entries.
      */
     public synchronized void addMimeTypes(String mime_types) {
         // check to see if we have created the registry
         if (DB[PROG] == null)
             DB[PROG] = new MimeTypeFile(); // make one
         DB[PROG].appendToRegistry(mime_types);
     }
     /**
      * Return the MIME type of the file object.
      * The implementation in this class calls
      * <code>getContentType(f.getName())</code>.
      *
      * @param f the file
      * @return  the file's MIME type
      */
     public String getContentType(File f) {
         return this.getContentType(f.getName());
     }
     /**
      * Return the MIME type based on the specified file name.
      * The MIME type entries are searched as described above under
      * <i>MIME types file search order</i>.
      * If no entry is found, the type "application/octet-stream" is returned.
      *
      * @param filename  the file name
      * @return          the file's MIME type
      */
     public synchronized String getContentType(String filename) {
         int dot_pos = filename.lastIndexOf("."); // period index
         if (dot_pos < 0)
             return defaultType;
         String file_ext = filename.substring(dot_pos + 1);
         if (file_ext.length() == 0)
             return defaultType;
         for (int i = 0; i < DB.length; i++) {
             if (DB[i] == null)
                 continue;
             String result = DB[i].getMIMETypeString(file_ext);
             if (result != null)
                 return result;
         }
         return defaultType;
     }
     /**
      * for debugging...
      *
     public static void main(String[] argv) throws Exception {
         MimetypesFileTypeMap map = new MimetypesFileTypeMap();
         System.out.println("File " + argv[0] + " has MIME type " +
                                                 map.getContentType(argv[0]));
         System.exit(0);
     }
     */
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaf_classes/javax/activation/MimetypesFileTypeMap.java@373ffda63c9a (annotated)

src/share/jaf_classes/javax/activation/MimetypesFileTypeMap.java