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1 /*** 2 * Redistribution and use of this software and associated documentation 3 * ("Software"), with or without modification, are permitted provided 4 * that the following conditions are met: 5 * 6 * 1. Redistributions of source code must retain copyright 7 * statements and notices. Redistributions must also contain a 8 * copy of this document. 9 * 10 * 2. Redistributions in binary form must reproduce the 11 * above copyright notice, this list of conditions and the 12 * following disclaimer in the documentation and/or other 13 * materials provided with the distribution. 14 * 15 * 3. The name "Exolab" must not be used to endorse or promote 16 * products derived from this Software without prior written 17 * permission of Exoffice Technologies. For written permission, 18 * please contact tma@netspace.net.au. 19 * 20 * 4. Products derived from this Software may not be called "Exolab" 21 * nor may "Exolab" appear in their names without prior written 22 * permission of Exoffice Technologies. Exolab is a registered 23 * trademark of Exoffice Technologies. 24 * 25 * 5. Due credit should be given to the Exolab Project 26 * (http://www.exolab.org/). 27 * 28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 39 * OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Copyright 2001-2004 (C) Exoffice Technologies Inc. All Rights Reserved. 42 * 43 * $Id: Configuration.java,v 1.2 2004/02/02 03:50:09 tanderson Exp $ 44 */ 45 package org.exolab.jmscts.provider; 46 47 import java.io.FileReader; 48 import java.io.IOException; 49 import java.io.InputStream; 50 import java.util.ArrayList; 51 52 import org.apache.log4j.Category; 53 54 import org.xml.sax.InputSource; 55 56 import org.exolab.castor.mapping.Mapping; 57 import org.exolab.castor.mapping.MappingException; 58 import org.exolab.castor.xml.Unmarshaller; 59 60 import org.exolab.jmscts.util.ConfigExpander; 61 62 63 /*** 64 * The provider configuration 65 * 66 * @version $Revision: 1.2 $ $Date: 2004/02/02 03:50:09 $ 67 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a> 68 * @see Provider 69 * @see ProviderLoader 70 */ 71 public class Configuration { 72 73 /*** 74 * The providers 75 */ 76 private ArrayList _providers = new ArrayList(); 77 78 /*** 79 * The logger 80 */ 81 private static final Category log = 82 Category.getInstance(Configuration.class); 83 84 /*** 85 * The castor mapping 86 */ 87 private static final Mapping MAPPING; 88 89 /*** 90 * The path to the castor mapping file, as a resource 91 */ 92 private static final String MAPPING_PATH = 93 "/org/exolab/jmscts/provider/mapping.xml"; 94 95 96 /*** 97 * Construct a new <code>Configuration</code> 98 */ 99 public Configuration() { 100 } 101 102 /*** 103 * Add a provider 104 * 105 * @param provider the provider 106 */ 107 public void addProvider(ProviderLoader provider) { 108 _providers.add(provider); 109 } 110 111 /*** 112 * Return the providers 113 * 114 * @return the providers 115 */ 116 public ArrayList getProviders() { 117 return _providers; 118 } 119 120 /*** 121 * Read the configuration 122 * 123 * @param path the file path to the configuration 124 * @return the read configuration 125 * @throws Exception if the configuration can't be read 126 */ 127 public static Configuration read(String path) throws Exception { 128 Configuration result = null; 129 Unmarshaller unmarshaller = new Unmarshaller(MAPPING); 130 FileReader reader = new FileReader(path); 131 try { 132 ConfigExpander handler = new ConfigExpander(reader); 133 result = (Configuration) unmarshaller.unmarshal(handler); 134 } finally { 135 if (reader != null) { 136 reader.close(); 137 } 138 } 139 return result; 140 } 141 142 static { 143 // load the castor mapping file 144 InputStream stream = Configuration.class.getResourceAsStream( 145 MAPPING_PATH); 146 if (stream == null) { 147 throw new RuntimeException( 148 "Failed to locate mapping file, path=" + MAPPING_PATH); 149 } 150 151 MAPPING = new Mapping(); 152 153 try { 154 MAPPING.loadMapping(new InputSource(stream)); 155 } catch (IOException exception) { 156 String message = "Failed to load mapping, path=" + MAPPING_PATH; 157 log.error(message, exception); 158 throw new RuntimeException(message); 159 } catch (MappingException exception) { 160 String message = "Failed to load mapping, path=" + MAPPING_PATH; 161 log.error(message, exception); 162 throw new RuntimeException(message); 163 } finally { 164 try { 165 stream.close(); 166 } catch (IOException ignore) { 167 // no-op 168 } 169 } 170 } 171 172 }

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