1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 package org.apache.openoffice.comp.sdbc.dbtools.comphelper; 23 24 import com.sun.star.lang.NullPointerException; 25 import com.sun.star.resource.MissingResourceException; 26 import com.sun.star.resource.OfficeResourceLoader; 27 import com.sun.star.resource.XResourceBundle; 28 import com.sun.star.resource.XResourceBundleLoader; 29 import com.sun.star.uno.AnyConverter; 30 import com.sun.star.uno.XComponentContext; 31 32 public class OfficeResourceBundle implements AutoCloseable { 33 34 private XComponentContext context; 35 private String baseName; 36 private boolean haveAttemptedCreate; 37 private XResourceBundle bundle; 38 39 40 /** constructs a resource bundle 41 @param context 42 the component context to operate in 43 @param bundleBaseName 44 the base name of the resource file which should be accessed (*without* the SUPD!) 45 @throws com.sun.star.lang.NullPointerException 46 if the given component context is null 47 */ OfficeResourceBundle(XComponentContext context, String bundleBaseName)48 public OfficeResourceBundle(XComponentContext context, String bundleBaseName) throws NullPointerException { 49 if (context == null) { 50 throw new NullPointerException(); 51 } 52 this.context = context; 53 this.baseName = bundleBaseName; 54 this.haveAttemptedCreate = false; 55 } 56 57 @Override close()58 public void close() { 59 CompHelper.disposeComponent(bundle); 60 } 61 62 /** 63 * Return the bundle's base name as passed to the constructor. 64 */ getBaseName()65 public String getBaseName() { 66 return baseName; 67 } 68 69 /** loads the string with the given resource id from the resource bundle 70 @param _resourceId 71 the id of the string to load 72 @return 73 the requested resource string. If no string with the given id exists in the resource bundle, 74 an empty string is returned. 75 */ loadString( int _resourceId )76 public String loadString( int _resourceId ) { 77 synchronized (this) { 78 String ret = ""; 79 if (loadBundle()) { 80 try { 81 Object value = bundle.getByName(getStringResourceKey(_resourceId)); 82 ret = AnyConverter.toString(value); 83 } catch (com.sun.star.uno.Exception ex) { 84 } 85 } 86 return ret; 87 } 88 } 89 90 /** determines whether the resource bundle has a string with the given id 91 @param _resourceId 92 the id of the string whose existence is to be checked 93 @return 94 true if and only if a string with the given ID exists in the resource 95 bundle. 96 */ hasString( int _resourceId )97 public boolean hasString( int _resourceId ) { 98 synchronized (this) { 99 boolean ret = false; 100 if (loadBundle()) { 101 ret = bundle.hasByName(getStringResourceKey(_resourceId)); 102 } 103 return ret; 104 } 105 } 106 getStringResourceKey(int resourceId)107 private String getStringResourceKey(int resourceId) { 108 return "string:" + resourceId; 109 } 110 loadBundle()111 private boolean loadBundle() { 112 if (haveAttemptedCreate) { 113 return bundle != null; 114 } 115 haveAttemptedCreate = true; 116 117 try { 118 XResourceBundleLoader loader = OfficeResourceLoader.get(context); 119 try { 120 if (loader == null) { 121 return false; 122 } 123 try { 124 bundle = loader.loadBundle_Default(baseName); 125 } catch (MissingResourceException missingResourceException) { 126 } 127 return bundle != null; 128 } finally { 129 CompHelper.disposeComponent(loader); 130 } 131 } catch (Exception exception) { 132 } 133 return false; 134 } 135 } 136