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  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 1997-2012 Oracle and/or its affiliates. All rights reserved.
   *
   * The contents of this file are subject to the terms of either the GNU
   * General Public License Version 2 only ("GPL") or the Common Development
   * and Distribution License("CDDL") (collectively, the "License").  You
   * may not use this file except in compliance with the License.  You can
  * obtain a copy of the License at
  * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
  * or packager/legal/LICENSE.txt.  See the License for the specific
  * language governing permissions and limitations under the License.
  *
  * When distributing the software, include this License Header Notice in each
  * file and include the License file at packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
  * "Portions Copyright [year] [name of copyright owner]"
  *
  * Contributor(s):
  * If you wish your version of this file to be governed by only the CDDL or
  * only the GPL Version 2, indicate your decision by adding "[Contributor]
  * elects to include this software in this distribution under the [CDDL or GPL
  * Version 2] license."  If you don't indicate a single choice of license, a
  * recipient has the option to distribute your version of this file under
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
  * its licensees as provided above.  However, if you add GPL Version 2 code
  * and therefore, elected the GPL Version 2 license, then the option applies
  * only if the new code is made subject to such option by the copyright
  * holder.
  */
 
 package com.sun.enterprise.web;
 
Class representing the parsed mime mapping file of a mime element.
 
 public class MimeMap implements Serializable {
    
     private static final String MIME_TYPE = "type=";
     private static final String MIME_EXTS = "exts=";
 
     private String id;
     private HashMap<StringStringmimeMappings;

    
Constructor.

Parameters:
id The mime id of the mime element which this MimeMap represents
 
     MimeMap(String id) {
         this. = id;
     }

    
Gets the mime id of the mime element which this MimeMap represents.
 
     String getID() {
         return this.;
     }

    
Parses the mime mappings from the given file.

Parameters:
file The mime file
 
     void load(String filethrows IOException {
 
         BufferedReader in = new BufferedReader(new FileReader(file));
 
         try {
             while (true) {
                 // Get next line
                 String line = in.readLine();
                 if (line == null)
                     return;
 
                 int len = line.length();
                 if (len > 0) {
                     // Ignore comments
                     char firstChar = line.charAt(0);
                     if ((firstChar != '#') && (firstChar != '!')) {
 
                         // Find start of key
                        int keyStart = 0;
                        while (keyStart < len
                                && Character.isWhitespace(line.charAt(keyStart))) {
                            keyStart++;
                        }
                        // Blank lines are ignored
                        if (keyStart == len) {
                            continue;
                        }
                        int keyEnd = keyStart;
                        while (keyEnd<len
                                && !Character.isWhitespace(line.charAt(keyEnd))) {
                            keyEnd++;
                        }
                        // Find start of value
                        int valueStart = keyEnd;
                        while (valueStart<len
                                && Character.isWhitespace(line.charAt(valueStart))) {
                            valueStart++;
                        }
                        if (valueStart == len) {
                            // Ignore this MIME mapping
                            continue;
                        }
                        int valueEnd = valueStart;
                        while (valueEnd<len
                                && !Character.isWhitespace(line.charAt(valueEnd))) {
                            valueEnd++;
                        }
                        String key = line.substring(keyStartkeyEnd);
                        String value = line.substring(valueStartvalueEnd);
                        addMappings(keyvalue);
                    }
                }
            }
        } finally {
            if (in != null) {
                in.close();
            }
        }
    }

    
Returns an iterator over the mime extensions that were parsed

Returns:
Iterator over the mime extensions that were parsed, or null if the mime file was empty
        Iterator<Stringret = null;
        if ( != null) {
            ret = .keySet().iterator();
        }
        return ret;
    }

    
Gets the mime type corresponding to the given extension

Parameters:
extension The mime extension
Returns:
The mime type corresponding to the given extension, or null if the given extension does not map to any mime type
    String getType(String extension) {
        String ret = null;
        if ( != null) {
            ret = .get(extension);
        }
        return ret;
    }
    private void addMappings(String typeString exts) {
        // Remove "type=" prefix
        int index = type.indexOf();
        if (index == -1) {
            // ignore
            return;
        }
        type = type.substring(index + .length());
        // Remove "exts=" prefix
        index = exts.indexOf();
        if (index == -1) {
            // ignore
            return;
        }
        if ( == null) {
             = new HashMap<StringString>();
	}
        exts = exts.substring(index + .length());
        index = exts.indexOf(',');
        String ext = null;
        if (index != -1) {
            // e.g., exts=aif,aiff,aifc
            int fromIndex = 0;
            while (index != -1) {
                ext = exts.substring(fromIndexindex).trim();
                if (ext.length() > 0) {
                    .put(exttype);
                }
                fromIndex = index+1;
                index = exts.indexOf(','fromIndex);
            }
            ext = exts.substring(fromIndex);
        } else {
            // e.g., exts=gif
            ext = exts;
        }
        if (ext != null) {
            ext = ext.trim();
            if (ext.length() > 0) {
                .put(exttype);
            }
        }
    }
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