[3650] | 1 | /*
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| 2 | * ServiceRack.java
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| 3 | * Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 18 | */
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| 19 | package org.greenstone.gsdl3.service;
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| 20 |
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| 21 | // greenstone classes
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[25975] | 22 | import java.lang.reflect.Method;
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[32453] | 23 | import java.util.ArrayList;
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[25975] | 24 | import java.util.HashMap;
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[3650] | 25 |
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[25975] | 26 | import org.apache.log4j.Logger;
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[27087] | 27 | import org.greenstone.gsdl3.collection.ServiceCluster;
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[25975] | 28 | import org.greenstone.gsdl3.core.MessageRouter;
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| 29 | import org.greenstone.gsdl3.core.ModuleInterface;
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[30834] | 30 | import org.greenstone.gsdl3.util.CustomClassLoader;
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[25975] | 31 | import org.greenstone.gsdl3.util.Dictionary;
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[30834] | 32 | import org.greenstone.gsdl3.util.GSFile;
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[32453] | 33 | import org.greenstone.gsdl3.util.GSParams;
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[25975] | 34 | import org.greenstone.gsdl3.util.GSPath;
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| 35 | import org.greenstone.gsdl3.util.GSXML;
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| 36 | import org.greenstone.gsdl3.util.XMLConverter;
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| 37 | import org.w3c.dom.Document;
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| 38 | import org.w3c.dom.Element;
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[24393] | 39 | import org.w3c.dom.Node;
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| 40 | import org.w3c.dom.NodeList;
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[3650] | 41 |
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[30616] | 42 | import java.io.StringWriter;
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| 43 | import java.io.PrintWriter;
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| 44 |
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[3650] | 45 | /**
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| 46 | * ServiceRack - abstract base class for services
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[24393] | 47 | *
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| 48 | * A ServiceRack provides one or more Services. This base class implements the
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| 49 | * process method. Each service is invoked by a method called process<service
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| 50 | * name> which takes one parameter - the xml request Element, and returns an XML
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| 51 | * response Element. for example, the TextQuery service would be invoked by
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[3650] | 52 | * processTextQuery(Element request)
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[24393] | 53 | *
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[21781] | 54 | * @author Katherine Don
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[3650] | 55 | */
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[24393] | 56 | public abstract class ServiceRack implements ModuleInterface
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[3650] | 57 | {
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| 58 |
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[24393] | 59 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.service.ServiceRack.class.getName());
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[13124] | 60 |
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[24393] | 61 | /** the absolute address of the site home */
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| 62 | protected String site_home = null;
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| 63 | /** the http address of the site home */
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| 64 | protected String site_http_address = null;
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[3994] | 65 |
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[24393] | 66 | protected String library_name = null;
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| 67 | /**
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| 68 | * the name of the cluster (or collection) that this service belongs to - if
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| 69 | * any
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| 70 | */
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| 71 | protected String cluster_name = null;
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[3650] | 72 |
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[24393] | 73 | /** some services can talk back to the message router */
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| 74 | protected MessageRouter router = null;
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[3650] | 75 |
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[27087] | 76 | /** Access to the collection/serviceCluster object for service subclasses */
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| 77 | protected ServiceCluster serviceCluster = null;
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| 78 |
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[24393] | 79 | /** a converter class to create Documents etc */
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| 80 | protected XMLConverter converter = null;
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[3650] | 81 |
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[24393] | 82 | /** the original config info - if need to store it */
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| 83 | protected Element config_info = null;
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[3851] | 84 |
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[28966] | 85 | /** XML element for stored description XML */
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| 86 | protected Document desc_doc = null;
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[3650] | 87 |
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[24393] | 88 | /**
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| 89 | * XML element for describe requests - list of supported services - this is
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| 90 | * static
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| 91 | */
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| 92 | protected Element short_service_info = null;
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[3650] | 93 |
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[24393] | 94 | /**
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| 95 | * XML element for stylesheet requests - map of service name to format elem
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| 96 | */
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[25635] | 97 | protected HashMap<String, Node> format_info_map = null;
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[3650] | 98 |
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[32453] | 99 | /** the list of cgi params that this services are looking for, that need saving in the session */
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| 100 | protected ArrayList<String> save_params = null;
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| 101 | protected ArrayList<String> sensitive_params = null;
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[25975] | 102 | protected Element _globalFormat = null;
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| 103 |
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[24393] | 104 | /**
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| 105 | * A class loader that knows about the collection resources directory can
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| 106 | * put properties files, dtds etc in here
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| 107 | */
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[30834] | 108 | CustomClassLoader class_loader = null;
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[9874] | 109 |
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[24393] | 110 | /** sets the cluster name */
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| 111 | public void setClusterName(String cluster_name)
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| 112 | {
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| 113 | this.cluster_name = cluster_name;
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| 114 | }
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[3650] | 115 |
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[27087] | 116 | /** sets the serviceCluster/Collection object */
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| 117 | public void setServiceCluster(ServiceCluster serviceCluster)
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| 118 | {
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| 119 | this.serviceCluster = serviceCluster;
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| 120 | }
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| 121 |
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[24393] | 122 | /** sets the collect name */
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| 123 | public void setCollectionName(String coll_name)
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| 124 | {
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| 125 | setClusterName(coll_name);
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| 126 | }
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[3650] | 127 |
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[24393] | 128 | public void cleanUp()
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| 129 | {
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| 130 | }
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[3650] | 131 |
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[25975] | 132 | public void setGlobalFormat(Element globalFormat)
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| 133 | {
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[28966] | 134 | _globalFormat = GSXML.duplicateWithNewName(this.desc_doc, globalFormat, GSXML.GLOBAL_FORMAT_ELEM, false);
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[25975] | 135 | }
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| 136 |
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[24393] | 137 | /** sets the site home */
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| 138 | public void setSiteHome(String site_home)
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| 139 | {
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| 140 | this.site_home = site_home;
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| 141 | }
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[3650] | 142 |
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[24393] | 143 | /** sets the site http address */
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| 144 | public void setSiteAddress(String site_address)
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| 145 | {
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| 146 | this.site_http_address = site_address;
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[9874] | 147 | }
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[3650] | 148 |
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[24393] | 149 | public void setLibraryName(String library_name)
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| 150 | {
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| 151 | this.library_name = library_name;
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| 152 | }
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[3650] | 153 |
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[24393] | 154 | public String getLibraryName()
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| 155 | {
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| 156 | return this.library_name;
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| 157 | }
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[16688] | 158 |
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[24393] | 159 | /** sets the message router */
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| 160 | public void setMessageRouter(MessageRouter m)
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| 161 | {
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| 162 | this.router = m;
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| 163 | setLibraryName(m.getLibraryName());
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[3650] | 164 | }
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| 165 |
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[32453] | 166 | public boolean addServiceParameters(GSParams params) {
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| 167 |
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| 168 | if (params == null) {
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| 169 | logger.error("params is null!!!");
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| 170 | return false;
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| 171 | }
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| 172 |
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| 173 | for (int i=0; i<save_params.size(); i++) {
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| 174 | params.addServiceParameter(save_params.get(i), "", true, false);
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| 175 | }
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| 176 | for (int i=0; i<sensitive_params.size(); i++) {
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| 177 | params.addServiceParameter(sensitive_params.get(i), "", false, true);
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| 178 | }
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| 179 | return true;
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| 180 |
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| 181 | }
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[24393] | 182 | /** the no-args constructor */
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| 183 | public ServiceRack()
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| 184 | {
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| 185 | this.converter = new XMLConverter();
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[28966] | 186 | this.desc_doc = XMLConverter.newDOM();
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| 187 | this.short_service_info = this.desc_doc.createElement(GSXML.SERVICE_ELEM + GSXML.LIST_MODIFIER);
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[25635] | 188 | this.format_info_map = new HashMap<String, Node>();
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[32453] | 189 | this.save_params = new ArrayList<String>();
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| 190 | this.sensitive_params = new ArrayList<String>();
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[24393] | 191 | }
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| 192 |
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| 193 | /**
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| 194 | * configure the service module
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| 195 | *
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| 196 | * @param info
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| 197 | * the XML node <serviceRack name="XXX"/> with name equal to the
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| 198 | * class name (of the subclass)
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| 199 | *
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| 200 | * must configure short_service_info_ and service_info_map_
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| 201 | * @return true if configured ok must be implemented in subclasses
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| 202 | */
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| 203 | public boolean configure(Element info)
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| 204 | {
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| 205 | return configure(info, null);
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| 206 | }
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| 207 |
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| 208 | public boolean configure(Element info, Element extra_info)
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| 209 | {
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| 210 | // set up the class loader
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[30834] | 211 | // this needs modifying if we ever have serviceracks at siteconfig level that want to use class loader
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| 212 | this.class_loader = new CustomClassLoader(this.getClass().getClassLoader(), GSFile.collectionResourceDir(this.site_home, this.cluster_name));
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[24393] | 213 | return true;
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| 214 | }
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| 215 |
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| 216 | /**
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| 217 | * Process an XML document - convenience method that uses Strings rather
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| 218 | * than Elements. just calls process(Element).
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| 219 | *
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| 220 | * @param xml_in
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| 221 | * the Document to process - a string
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| 222 | * @return the resultant document as a string - contains any error messages
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| 223 | * @see String
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| 224 | */
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| 225 | public String process(String xml_in)
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| 226 | {
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| 227 |
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| 228 | Document doc = this.converter.getDOM(xml_in);
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| 229 | if (doc == null)
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| 230 | {
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| 231 | logger.error("Couldn't parse request");
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| 232 | logger.error(xml_in);
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| 233 | return null;
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[3650] | 234 | }
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[24393] | 235 | Node res = process(doc);
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| 236 | return this.converter.getString(res);
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| 237 |
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| 238 | }
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| 239 |
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| 240 | /**
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| 241 | * process an XML request in DOM form
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| 242 | *
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| 243 | * @param message
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| 244 | * the Node node containing the request should be <message>
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| 245 | * @return an Node with the result XML
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| 246 | * @see Node/Element
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| 247 | */
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| 248 | public Node process(Node message_node)
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| 249 | {
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[28966] | 250 | Element message = GSXML.nodeToElement(message_node);
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[24393] | 251 |
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| 252 | NodeList requests = message.getElementsByTagName(GSXML.REQUEST_ELEM);
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[28966] | 253 | Document result_doc = XMLConverter.newDOM();
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| 254 | Element mainResult = result_doc.createElement(GSXML.MESSAGE_ELEM);
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[24393] | 255 | if (requests.getLength() == 0)
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| 256 | {
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| 257 | // no requests
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| 258 | return mainResult; // empty message for now
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| 259 | }
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| 260 |
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| 261 | for (int i = 0; i < requests.getLength(); i++)
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| 262 | {
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| 263 | Element request = (Element) requests.item(i);
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| 264 |
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| 265 | String type = request.getAttribute(GSXML.TYPE_ATT);
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| 266 | if (type.equals(GSXML.REQUEST_TYPE_DESCRIBE))
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| 267 | {
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[28966] | 268 | Element response = processDescribe(request);
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[24393] | 269 | if (response != null)
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| 270 | {
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[28966] | 271 | mainResult.appendChild(result_doc.importNode(response, true));
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[24393] | 272 | }
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| 273 |
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[3900] | 274 | }
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[24393] | 275 | else if (type.equals(GSXML.REQUEST_TYPE_FORMAT))
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| 276 | {
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[28966] | 277 | Element response = processFormat(request);
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| 278 | mainResult.appendChild(result_doc.importNode(response, true));
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[3900] | 279 | }
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[24393] | 280 | else
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| 281 | {
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| 282 | // other type of request, must be processed by the subclass -
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| 283 | // send to the service method
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| 284 | StringBuffer error_string = new StringBuffer();
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| 285 | String to = GSPath.getFirstLink(request.getAttribute(GSXML.TO_ATT));
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| 286 | Element response = null;
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| 287 | try
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| 288 | {
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| 289 | Class c = this.getClass();
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| 290 | Class[] params = { Class.forName("org.w3c.dom.Element") };
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| 291 |
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| 292 | String method_name = "process" + to;
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| 293 | Method m = null;
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| 294 | while (c != null)
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| 295 | {
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| 296 |
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| 297 | try
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| 298 | {
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| 299 | m = c.getDeclaredMethod(method_name, params);
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| 300 | // if this has worked, break
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| 301 | break;
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| 302 | }
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| 303 | catch (NoSuchMethodException e)
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| 304 | {
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| 305 | c = c.getSuperclass();
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| 306 | }
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| 307 | catch (SecurityException e)
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| 308 | {
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| 309 | logger.error("security exception for finding method " + method_name);
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| 310 | error_string.append("ServiceRack.process: security exception for finding method " + method_name);
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| 311 | }
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| 312 | } // while
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| 313 | if (m != null)
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| 314 | {
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| 315 | Object[] args = { request };
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| 316 | try
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| 317 | {
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| 318 | response = (Element) m.invoke(this, args);
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| 319 |
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| 320 | }
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| 321 | catch (Exception e)
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| 322 | {
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| 323 | logger.error("Trying to call a processService type method (process" + to + ") on a subclass(" + this.getClass().getName() + "), but an exception happened:" + e.toString(), e);
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[30616] | 324 | // for debugging, it's useful to see what's really causing this supposed "invocationTargetException"
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| 325 | // When the error message is displayed in the "Net" tab in the browser's web inspector, scroll down to "Caused by"
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| 326 | StringWriter errors = new StringWriter();
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| 327 | e.printStackTrace(new PrintWriter(errors));
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| 328 | String errStr = errors.toString();
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| 329 | errStr += XMLConverter.getString(request);
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[24393] | 330 |
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[30616] | 331 |
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| 332 | error_string.append("Trying to call a processService type method (process" + to + ") on a subclass(" + this.getClass().getName() + "), but an exception happened:" + e.toString() + "\n" + errStr );
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[24393] | 333 | }
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| 334 | }
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| 335 | else
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| 336 | {
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| 337 | logger.error("method " + method_name + " not found for class " + this.getClass().getName());
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| 338 | error_string.append("ServiceRack.process: method " + method_name + " not found for class " + this.getClass().getName());
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| 339 | }
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| 340 |
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| 341 | }
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| 342 | catch (ClassNotFoundException e)
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| 343 | {
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| 344 | logger.error("Element class not found");
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| 345 | error_string.append("Element class not found");
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| 346 | }
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| 347 | if (response != null)
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| 348 | {
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[28966] | 349 | mainResult.appendChild(result_doc.importNode(response, true));
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[24393] | 350 | }
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| 351 | else
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| 352 | {
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| 353 | // add in a dummy response
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| 354 | logger.error("adding in an error element\n");
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[28966] | 355 | response = result_doc.createElement(GSXML.RESPONSE_ELEM);
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| 356 | GSXML.addError(response, error_string.toString());
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[24393] | 357 | mainResult.appendChild(response);
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| 358 |
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| 359 | }
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| 360 |
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| 361 | } // else process request
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| 362 | } // for each request
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| 363 |
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| 364 | return mainResult;
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| 365 |
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| 366 | }
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| 367 |
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| 368 | /**
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| 369 | * process method for describe requests
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| 370 | */
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| 371 | protected Element processDescribe(Element request)
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| 372 | {
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[28966] | 373 | Document result_doc = XMLConverter.newDOM();
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| 374 | Element response = result_doc.createElement(GSXML.RESPONSE_ELEM);
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[24393] | 375 | response.setAttribute(GSXML.TYPE_ATT, GSXML.REQUEST_TYPE_DESCRIBE);
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| 376 |
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| 377 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 378 | String to = GSPath.getFirstLink(request.getAttribute(GSXML.TO_ATT));
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| 379 | if (to.equals(""))
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| 380 | { // return the service list
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[28966] | 381 | response.appendChild(result_doc.importNode(getServiceList(result_doc, lang), true));
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[24393] | 382 | return response;
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[3650] | 383 | }
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[24393] | 384 | response.setAttribute(GSXML.FROM_ATT, to);
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| 385 | Element param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
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| 386 | Element description = null;
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| 387 | if (param_list == null)
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| 388 | {
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[28966] | 389 | description = getServiceDescription(result_doc, to, lang, null);
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[9265] | 390 | }
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[24393] | 391 | else
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| 392 | {
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| 393 | NodeList params = param_list.getElementsByTagName(GSXML.PARAM_ELEM);
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| 394 | for (int i = 0; i < params.getLength(); i++)
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| 395 | {
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[3650] | 396 |
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[24393] | 397 | Element param = (Element) params.item(i);
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| 398 | // Identify the structure information desired
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| 399 | if (param.getAttribute(GSXML.NAME_ATT).equals(GSXML.SUBSET_PARAM))
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| 400 | {
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| 401 | String info = param.getAttribute(GSXML.VALUE_ATT);
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| 402 | if (description == null)
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| 403 | {
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[28966] | 404 | description = getServiceDescription(result_doc, to, lang, info);
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[24393] | 405 | }
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| 406 | else
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| 407 | {
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[28966] | 408 | Element temp = getServiceDescription(result_doc, to, lang, info);
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[24393] | 409 | GSXML.mergeElements(description, temp);
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| 410 | }
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| 411 | }
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| 412 | }
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| 413 | }
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| 414 | if (description != null)
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| 415 | { // may be null if non-existant service
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[28966] | 416 | response.appendChild(description);
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[24393] | 417 | }
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| 418 | return response;
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[4903] | 419 |
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[24393] | 420 | }
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| 421 |
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| 422 | /**
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| 423 | * process method for stylesheet requests
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| 424 | */
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| 425 | protected Element processFormat(Element request)
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| 426 | {
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[28966] | 427 | Document result_doc = XMLConverter.newDOM();
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| 428 | Element response = result_doc.createElement(GSXML.RESPONSE_ELEM);
|
---|
[24393] | 429 | response.setAttribute(GSXML.TYPE_ATT, GSXML.REQUEST_TYPE_FORMAT);
|
---|
| 430 |
|
---|
| 431 | String to = GSPath.getFirstLink(request.getAttribute(GSXML.TO_ATT));
|
---|
| 432 |
|
---|
| 433 | if (to.equals(""))
|
---|
| 434 | { // serviceRack query - is this appropriate??
|
---|
| 435 | return response;
|
---|
[5126] | 436 | }
|
---|
[24393] | 437 |
|
---|
| 438 | // describe a particular service
|
---|
| 439 | if (this.format_info_map.containsKey(to))
|
---|
| 440 | {
|
---|
[28966] | 441 | response.appendChild(getServiceFormat(result_doc, to));
|
---|
| 442 | if (_globalFormat != null)
|
---|
[25975] | 443 | {
|
---|
[28966] | 444 | response.appendChild(result_doc.importNode(this._globalFormat, true));
|
---|
[25975] | 445 | }
|
---|
[24393] | 446 | response.setAttribute(GSXML.FROM_ATT, to);
|
---|
| 447 | return response;
|
---|
| 448 | }
|
---|
[25990] | 449 |
|
---|
[24393] | 450 | // else no format info
|
---|
| 451 | logger.error("ServiceRack describe request: no format info for " + to + ".");
|
---|
| 452 | return response;
|
---|
[5126] | 453 | }
|
---|
[3650] | 454 |
|
---|
[24393] | 455 | /** returns the service list for the subclass */
|
---|
[28966] | 456 | protected Element getServiceList(Document doc, String lang)
|
---|
[24393] | 457 | {
|
---|
| 458 | // for now, it is static and has no language stuff
|
---|
[28966] | 459 | return (Element)doc.importNode(this.short_service_info, true);
|
---|
[3909] | 460 | }
|
---|
[3650] | 461 |
|
---|
[24393] | 462 | /** returns a specific service description */
|
---|
[28966] | 463 | abstract protected Element getServiceDescription(Document doc, String service, String lang, String subset);
|
---|
[3650] | 464 |
|
---|
[28966] | 465 | protected Element getServiceFormat(Document doc, String service)
|
---|
[24393] | 466 | {
|
---|
[28966] | 467 | Element format = (Element) this.format_info_map.get(service);
|
---|
| 468 | if (format != null) {
|
---|
| 469 | return (Element)doc.importNode(format, true);
|
---|
| 470 | }
|
---|
| 471 | return null;
|
---|
[24393] | 472 | }
|
---|
[8952] | 473 |
|
---|
[30629] | 474 |
|
---|
| 475 | /**
|
---|
| 476 | * Returns the appropriate language element from a display elem, display is
|
---|
| 477 | * the containing element, name is the name of the element to look for, lang
|
---|
| 478 | * is the preferred language, lang_default is the fall back lang, if neither
|
---|
| 479 | * lang is found will return the first one it finds
|
---|
| 480 | */
|
---|
| 481 | public String getDisplayText(Element display, String name, String lang, String lang_default) {
|
---|
| 482 | return getDisplayText(display, name, lang, lang_default, null);
|
---|
| 483 | }
|
---|
| 484 |
|
---|
[30667] | 485 | public String getDisplayText(Element display, String name, String lang, String lang_default, String default_dictionary) {
|
---|
[30629] | 486 |
|
---|
| 487 |
|
---|
| 488 | String def = null;
|
---|
| 489 | String first = null;
|
---|
| 490 | String key = null;
|
---|
[30667] | 491 | String dictionary_name = default_dictionary;
|
---|
[30629] | 492 | NodeList elems = display.getElementsByTagName(GSXML.DISPLAY_TEXT_ELEM);
|
---|
| 493 | if (elems.getLength() == 0)
|
---|
| 494 | return "";
|
---|
| 495 | for (int i = 0; i < elems.getLength(); i++)
|
---|
| 496 | {
|
---|
| 497 | Element e = (Element) elems.item(i);
|
---|
| 498 | String n = e.getAttribute(GSXML.NAME_ATT);
|
---|
| 499 | if (name.equals(n))
|
---|
| 500 | {
|
---|
| 501 | String l = e.getAttribute(GSXML.LANG_ATT);
|
---|
| 502 | String k = e.getAttribute(GSXML.KEY_ATT);
|
---|
| 503 | // if we have a specific lang value, return that
|
---|
| 504 | if (!l.equals("") && lang.equals(l))
|
---|
| 505 | {
|
---|
| 506 | return GSXML.getNodeText(e);
|
---|
| 507 | }
|
---|
| 508 | else if (!l.equals("") && lang_default.equals(l))
|
---|
| 509 | {
|
---|
| 510 | def = GSXML.getNodeText(e);
|
---|
| 511 | }
|
---|
| 512 | else if (!k.equals("")) {
|
---|
| 513 | if ( key == null) {
|
---|
| 514 | // a key specified. only allowed one spec with key
|
---|
| 515 | key = k;
|
---|
[30667] | 516 | String d = e.getAttribute(GSXML.DICTIONARY_ATT);
|
---|
| 517 | if (!d.equals("")) {
|
---|
| 518 | dictionary_name = d;
|
---|
| 519 | }
|
---|
[30629] | 520 | }
|
---|
| 521 | }
|
---|
| 522 | // we have no key and we don't match the languages
|
---|
| 523 | else if (first == null)
|
---|
| 524 | {
|
---|
| 525 | // but we are the first one, so we remember the value
|
---|
| 526 | first = GSXML.getNodeText(e);
|
---|
| 527 | }
|
---|
| 528 | }
|
---|
| 529 | else
|
---|
| 530 | {
|
---|
| 531 | continue;
|
---|
| 532 | }
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 |
|
---|
| 536 | if (key != null) {
|
---|
| 537 | String s = getTextString(key, lang, dictionary_name);
|
---|
| 538 | // only use this one if a value was actually found
|
---|
[30647] | 539 | if (s!= null) {
|
---|
[30629] | 540 | return s;
|
---|
| 541 | }
|
---|
[30647] | 542 | //if (!s.equals( "_"+key +"_")) {
|
---|
| 543 | // return s;
|
---|
| 544 | //}
|
---|
[30629] | 545 | }
|
---|
| 546 |
|
---|
| 547 | if (def != null)
|
---|
| 548 | {
|
---|
| 549 | return def;
|
---|
| 550 | }
|
---|
| 551 | if (first != null)
|
---|
| 552 | {
|
---|
| 553 | return first;
|
---|
| 554 | }
|
---|
| 555 | return "";
|
---|
| 556 | }
|
---|
| 557 |
|
---|
[24393] | 558 | /** overloaded version for no args case */
|
---|
| 559 | protected String getTextString(String key, String lang)
|
---|
| 560 | {
|
---|
| 561 | return getTextString(key, lang, null, null);
|
---|
| 562 | }
|
---|
[3650] | 563 |
|
---|
[24393] | 564 | protected String getTextString(String key, String lang, String dictionary)
|
---|
| 565 | {
|
---|
| 566 | return getTextString(key, lang, dictionary, null);
|
---|
[9279] | 567 | }
|
---|
| 568 |
|
---|
[24393] | 569 | protected String getTextString(String key, String lang, String[] args)
|
---|
| 570 | {
|
---|
| 571 | return getTextString(key, lang, null, args);
|
---|
[9279] | 572 | }
|
---|
| 573 |
|
---|
[24393] | 574 | /**
|
---|
| 575 | * getTextString - retrieves a language specific text string for the given
|
---|
| 576 | * key and locale, from the specified resource_bundle (dictionary)
|
---|
| 577 | */
|
---|
| 578 | protected String getTextString(String key, String lang, String dictionary, String[] args)
|
---|
| 579 | {
|
---|
| 580 |
|
---|
| 581 | // we want to use the collection class loader in case there are coll specific files
|
---|
| 582 | if (dictionary != null)
|
---|
| 583 | {
|
---|
| 584 | // just try the one specified dictionary
|
---|
| 585 | Dictionary dict = new Dictionary(dictionary, lang, this.class_loader);
|
---|
| 586 | String result = dict.get(key, args);
|
---|
| 587 | if (result == null)
|
---|
| 588 | { // not found
|
---|
[30629] | 589 | //return "_" + key + "_";
|
---|
| 590 | return null;
|
---|
[24393] | 591 | }
|
---|
| 592 | return result;
|
---|
| 593 | }
|
---|
| 594 |
|
---|
| 595 | // now we try class names for dictionary names
|
---|
[30475] | 596 | String original_class_name = this.getClass().getName();
|
---|
| 597 | original_class_name = original_class_name.substring(original_class_name.lastIndexOf('.') + 1);
|
---|
| 598 | Dictionary dict = new Dictionary(original_class_name, lang, this.class_loader);
|
---|
[24393] | 599 | String result = dict.get(key, args);
|
---|
| 600 | if (result != null)
|
---|
| 601 | {
|
---|
| 602 | return result;
|
---|
| 603 | }
|
---|
| 604 |
|
---|
| 605 | // we have to try super classes
|
---|
[30475] | 606 | String class_name;
|
---|
[24393] | 607 | Class c = this.getClass().getSuperclass();
|
---|
| 608 | while (result == null && c != null)
|
---|
| 609 | {
|
---|
| 610 | class_name = c.getName();
|
---|
| 611 | class_name = class_name.substring(class_name.lastIndexOf('.') + 1);
|
---|
| 612 | if (class_name.equals("ServiceRack"))
|
---|
| 613 | {
|
---|
| 614 | // this is as far as we go
|
---|
| 615 | break;
|
---|
| 616 | }
|
---|
| 617 | dict = new Dictionary(class_name, lang, this.class_loader);
|
---|
| 618 | result = dict.get(key, args);
|
---|
| 619 | c = c.getSuperclass();
|
---|
| 620 | }
|
---|
| 621 | if (result == null)
|
---|
| 622 | {
|
---|
[30475] | 623 | // try the ServiceRack properties
|
---|
| 624 | // at the moment we look for original_class_name.key, then just key
|
---|
[30629] | 625 | // if there is lots of inheritance, may want to try down the list of superclasses too...?
|
---|
[30475] | 626 | class_name = "ServiceRack";
|
---|
| 627 | dict = new Dictionary(class_name, lang, this.class_loader);
|
---|
| 628 | String full_key = original_class_name+"."+key;
|
---|
| 629 | result = dict.get(full_key, args);
|
---|
| 630 | if(result == null) {
|
---|
| 631 | result = dict.get(key, args);
|
---|
| 632 | }
|
---|
| 633 | if(result == null) {
|
---|
[30647] | 634 | //return "_" + key + "_";
|
---|
| 635 | return null;
|
---|
[30475] | 636 | }
|
---|
[24393] | 637 | }
|
---|
| 638 | return result;
|
---|
[30475] | 639 |
|
---|
[9279] | 640 | }
|
---|
[4903] | 641 |
|
---|
[24393] | 642 | protected String getMetadataNameText(String key, String lang)
|
---|
| 643 | {
|
---|
[5190] | 644 |
|
---|
[24393] | 645 | String properties_name = "metadata_names";
|
---|
| 646 | Dictionary dict = new Dictionary(properties_name, lang);
|
---|
| 647 |
|
---|
| 648 | String result = dict.get(key);
|
---|
| 649 | if (result == null)
|
---|
| 650 | { // not found
|
---|
| 651 | return null;
|
---|
| 652 | }
|
---|
| 653 | return result;
|
---|
| 654 | }
|
---|
[3650] | 655 | }
|
---|