View Javadoc
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 info@exolab.org. 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 2001-2003 (C) Exoffice Technologies Inc. All Rights Reserved. 42 * 43 * $Id: ConnectorHelper.java,v 1.4 2003/08/07 13:32:55 tanderson Exp $ 44 */ 45 package org.exolab.jms.config; 46 47 import java.io.IOException; 48 import java.io.InputStream; 49 import java.io.InputStreamReader; 50 51 import org.apache.commons.logging.Log; 52 import org.apache.commons.logging.LogFactory; 53 54 import org.exolab.jms.config.types.SchemeType; 55 56 57 /*** 58 * ConnectorHelper is a utility class that returns {@link ConnectorResource} 59 * objects for a given scheme. 60 * 61 * @version $Revision: 1.4 $ $Date: 2003/08/07 13:32:55 $ 62 * @author <a href="mailto:tima@intalio.com">Tim Anderson</a> 63 */ 64 public class ConnectorHelper { 65 66 /*** 67 * The default connector resource configurations 68 */ 69 private static final ConnectorResource[] _connectors; 70 71 /*** 72 * The logger 73 */ 74 private static final Log _log = LogFactory.getLog(ConnectorHelper.class); 75 76 /*** 77 * The connector configuration path as a resource 78 */ 79 private static final String RESOURCE = 80 "/org/exolab/jms/config/connectors.xml"; 81 82 83 /*** 84 * Returns the connector resource for the supplied scheme. 85 * This uses the configuration returned by 86 * {@link ConfigurationManager#getConfig} 87 * 88 * @param scheme the connector scheme 89 * @return the connector configuration, or null if none exists 90 */ 91 public static ConnectorResource getConnectorResource(SchemeType scheme) { 92 return getConnectorResource(scheme, ConfigurationManager.getConfig()); 93 } 94 95 /*** 96 * Returns the connector resource for the supplied scheme, from 97 * the supplied configuration. If the configuration doesn't define 98 * any connector resources, the default connector for the scheme will be 99 * returned. 100 * 101 * @param scheme the connector scheme 102 * @param config the configuration 103 * @return the connector configuration, or null if none exists 104 */ 105 public static ConnectorResource getConnectorResource( 106 SchemeType scheme, Configuration config) { 107 108 if (scheme == null) { 109 throw new IllegalArgumentException("Argument 'scheme' is null"); 110 } 111 if (config == null) { 112 throw new IllegalArgumentException("Argument 'config' is null"); 113 } 114 115 ConnectorResource result = null; 116 ConnectorResource[] connectors = _connectors; 117 if (config.getConnectorResources() != null) { 118 // use the specified resources, if any 119 connectors = config.getConnectorResources().getConnectorResource(); 120 } 121 122 String name = scheme.toString(); 123 for (int i = 0; i < connectors.length; ++i) { 124 if (connectors[i].getScheme().toString().equals(name)) { 125 result = connectors[i]; 126 break; 127 } 128 } 129 return result; 130 } 131 132 static { 133 // load the default connector resources 134 135 InputStream stream = null; 136 try { 137 ConnectorResources connectors = null; 138 stream = ConnectorHelper.class.getResourceAsStream(RESOURCE); 139 connectors = ConnectorResources.unmarshal( 140 new InputStreamReader(stream)); 141 _connectors = connectors.getConnectorResource(); 142 } catch (Exception exception) { 143 _log.error(exception, exception); 144 throw new RuntimeException(exception.getMessage()); 145 } finally { 146 if (stream != null) { 147 try { 148 stream.close(); 149 } catch (IOException ignore) { 150 } 151 } 152 } 153 } 154 155 } //-- ConnectorHelper

This page was automatically generated by Maven