1 /* 2 * Copyright (c) 2007, Fraunhofer-Gesellschaft 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * (1) Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the disclaimer at the end. 11 * Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * (2) Neither the name of Fraunhofer nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * DISCLAIMER 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 */ 35 package org.ogf.graap.wsag.server.actions.impl; 36 37 import java.io.InputStream; 38 39 import org.apache.commons.collections.ExtendedProperties; 40 import org.apache.log4j.Logger; 41 import org.apache.velocity.exception.ResourceNotFoundException; 42 import org.apache.velocity.runtime.resource.Resource; 43 import org.apache.velocity.runtime.resource.loader.ResourceLoader; 44 45 /** 46 * Resource loader that loads velocity resources from the classpath. 47 * 48 * @author owaeld 49 * 50 */ 51 public class ClasspathResourceLoader extends ResourceLoader 52 { 53 54 private static final Logger LOG = Logger.getLogger( ClasspathResourceLoader.class ); 55 56 /** 57 * This is abstract in the base class, so we need it. 58 * 59 * {@inheritDoc} 60 */ 61 public void init( ExtendedProperties configuration ) 62 { 63 LOG.debug( "ClasspathResourceLoader : initialization starting." ); 64 LOG.debug( "ClasspathResourceLoader : initialization complete." ); 65 } 66 67 /** 68 * Get an InputStream so that the Runtime can build a template with it. 69 * 70 * @param name 71 * name of template to get 72 * @return InputStream containing the template 73 */ 74 public synchronized InputStream getResourceStream( String name ) 75 { 76 InputStream result = null; 77 78 if ( name == null || name.length() == 0 ) 79 { 80 throw new ResourceNotFoundException( "No template name provided" ); 81 } 82 83 try 84 { 85 result = ClasspathResourceLoader.class.getResourceAsStream( name ); 86 } 87 catch ( Exception fnfe ) 88 { 89 /* 90 * log and convert to a general Velocity ResourceNotFoundException 91 */ 92 93 throw new ResourceNotFoundException( fnfe.getMessage() ); 94 } 95 96 return result; 97 } 98 99 /** 100 * Defaults to return false. 101 * 102 * {@inheritDoc} 103 */ 104 public boolean isSourceModified( Resource resource ) 105 { 106 return false; 107 } 108 109 /** 110 * Defaults to return 0 111 * 112 * {@inheritDoc} 113 */ 114 public long getLastModified( Resource resource ) 115 { 116 return 0; 117 } 118 119 }