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| 1 | +/* | |
| 2 | + * @(#)PropertyResourceBundle.java 1.7 97/01/29 | |
| 3 | + * | |
| 4 | + * (C) Copyright Taligent, Inc. 1996 - All Rights Reserved | |
| 5 | + * (C) Copyright IBM Corp. 1996 - All Rights Reserved | |
| 6 | + * | |
| 7 | + * Portions copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved. | |
| 8 | + * | |
| 9 | + * The original version of this source code and documentation is copyrighted | |
| 10 | + * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These | |
| 11 | + * materials are provided under terms of a License Agreement between Taligent | |
| 12 | + * and Sun. This technology is protected by multiple US and International | |
| 13 | + * patents. This notice and attribution to Taligent may not be removed. | |
| 14 | + * Taligent is a registered trademark of Taligent, Inc. | |
| 15 | + * | |
| 16 | + * Permission to use, copy, modify, and distribute this software | |
| 17 | + * and its documentation for NON-COMMERCIAL purposes and without | |
| 18 | + * fee is hereby granted provided that this copyright notice | |
| 19 | + * appears in all copies. Please refer to the file "copyright.html" | |
| 20 | + * for further important copyright and licensing information. | |
| 21 | + * | |
| 22 | + * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF | |
| 23 | + * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED | |
| 24 | + * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A | |
| 25 | + * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR | |
| 26 | + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
| 27 | + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. | |
| 28 | + * | |
| 29 | + */ | |
| 30 | +package java.util; | |
| 31 | + | |
| 32 | +import java.util.Properties; | |
| 33 | +import java.io.InputStream; | |
| 34 | +import java.io.IOException; | |
| 35 | + | |
| 36 | +/** | |
| 37 | + * <code>PropertyResourceBundle</code> is an abstract subclass of | |
| 38 | + * <code>ResourceBundle</code> that manages resources for a locale | |
| 39 | + * using a set of static strings from a property file. See | |
| 40 | + * <code>ResourceBundle</code> for more information about resource | |
| 41 | + * bundles in general. | |
| 42 | + * | |
| 43 | + * <p> | |
| 44 | + * The property file contains the keys that you use in your source code | |
| 45 | + * in calls to <code>ResourceBundle.getString</code> and similar methods, | |
| 46 | + * and their corresponding values, etc. | |
| 47 | + * The name of the property file indicates the resource bundle's family | |
| 48 | + * and locale. | |
| 49 | + * | |
| 50 | + * <p> | |
| 51 | + * In the following example, the keys are of the form "s1"... The actual | |
| 52 | + * keys are entirely up to your choice, so long as they are the same as | |
| 53 | + * the keys you use in your program to retrieve the objects from the bundle. | |
| 54 | + * Keys are case-sensitive. | |
| 55 | + * <blockquote> | |
| 56 | + * <pre> | |
| 57 | + * s1=3 | |
| 58 | + * s2=MeinDisk | |
| 59 | + * s3=3 Mar 96 | |
| 60 | + * s4=Der disk '{1}' a {0} a {2}. | |
| 61 | + * s5=0 | |
| 62 | + * s6=keine Datein | |
| 63 | + * s7=1 | |
| 64 | + * s8=ein Datei | |
| 65 | + * s9=2 | |
| 66 | + * s10={0}|3 Datein | |
| 67 | + * s11=Der Format worf ein Exception: {0} | |
| 68 | + * s12=ERROR | |
| 69 | + * s14=Resulte | |
| 70 | + * s13=Dialogue | |
| 71 | + * s15=Pattern | |
| 72 | + * s16=1,3 | |
| 73 | + * </pre> | |
| 74 | + * </blockquote> | |
| 75 | + * | |
| 76 | + * @see ResourceBundle | |
| 77 | + * @see ListResourceBundle | |
| 78 | + */ | |
| 79 | +public class PropertyResourceBundle extends ResourceBundle { | |
| 80 | + /** | |
| 81 | + * Creates a property resource | |
| 82 | + * @param file property file to read from. | |
| 83 | + */ | |
| 84 | + public PropertyResourceBundle (InputStream stream) throws IOException { | |
| 85 | + lookup.load(stream); | |
| 86 | + } | |
| 87 | + | |
| 88 | + /** | |
| 89 | + * Override of ResourceBundle, same semantics | |
| 90 | + */ | |
| 91 | + public Object handleGetObject(String key) { | |
| 92 | + Object obj = lookup.get(key); | |
| 93 | + return obj; // once serialization is in place, you can do non-strings | |
| 94 | + } | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Implementation of ResourceBundle.getKeys. | |
| 98 | + */ | |
| 99 | + public Enumeration getKeys() { | |
| 100 | + Enumeration result = null; | |
| 101 | + if (parent != null) { | |
| 102 | + Hashtable temp = new Hashtable(); | |
| 103 | + for (Enumeration parentKeys = parent.getKeys() ; | |
| 104 | + parentKeys.hasMoreElements() ; /* nothing */) { | |
| 105 | + temp.put(parentKeys.nextElement(), this); | |
| 106 | + } | |
| 107 | + for (Enumeration thisKeys = lookup.keys(); | |
| 108 | + thisKeys.hasMoreElements() ; /* nothing */) { | |
| 109 | + temp.put(thisKeys.nextElement(), this); | |
| 110 | + } | |
| 111 | + result = temp.keys(); | |
| 112 | + } else { | |
| 113 | + result = lookup.keys(); | |
| 114 | + } | |
| 115 | + return result; | |
| 116 | + } | |
| 117 | + | |
| 118 | + // ==================privates==================== | |
| 119 | + | |
| 120 | + private Properties lookup = new Properties(); | |
| 121 | +} | |