001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.velocity;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    
020    import java.io.InputStream;
021    
022    import org.apache.velocity.exception.ResourceNotFoundException;
023    
024    /**
025     * @author Brian Wing Shun Chan
026     */
027    public class ClassLoaderVelocityResourceListener
028            extends VelocityResourceListener {
029    
030            @Override
031            public InputStream getResourceStream(String source)
032                    throws ResourceNotFoundException {
033    
034                    try {
035                            return doGetResourceStream(source);
036                    }
037                    catch (Exception e) {
038                            throw new ResourceNotFoundException(source);
039                    }
040            }
041    
042            protected InputStream doGetResourceStream(String source) throws Exception {
043                    if (source.contains(JOURNAL_SEPARATOR) ||
044                            source.contains(SERVLET_SEPARATOR) ||
045                            source.contains(THEME_LOADER_SEPARATOR)) {
046    
047                            return null;
048                    }
049    
050                    ClassLoader classLoader = getClass().getClassLoader();
051    
052                    if (_log.isDebugEnabled()) {
053                            _log.debug("Loading " + source);
054                    }
055    
056                    return classLoader.getResourceAsStream(source);
057            }
058    
059            private static Log _log = LogFactoryUtil.getLog(
060                    ClassLoaderVelocityResourceListener.class);
061    
062    }