001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.velocity;
016    
017    import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayInputStream;
018    import com.liferay.portal.kernel.log.Log;
019    import com.liferay.portal.kernel.log.LogFactoryUtil;
020    import com.liferay.portal.kernel.util.CharPool;
021    import com.liferay.portal.kernel.util.GetterUtil;
022    import com.liferay.portal.kernel.util.StringPool;
023    import com.liferay.portlet.journal.model.JournalTemplate;
024    import com.liferay.portlet.journal.service.JournalTemplateLocalServiceUtil;
025    
026    import java.io.InputStream;
027    
028    import org.apache.velocity.exception.ResourceNotFoundException;
029    
030    /**
031     * @author Alexander Chow
032     */
033    public class JournalTemplateVelocityResourceListener
034            extends VelocityResourceListener {
035    
036            @Override
037            public InputStream getResourceStream(String source)
038                    throws ResourceNotFoundException {
039    
040                    try {
041                            return doGetResourceStream(source);
042                    }
043                    catch (Exception e) {
044                            throw new ResourceNotFoundException(source);
045                    }
046            }
047    
048            protected InputStream doGetResourceStream(String source) throws Exception {
049                    int pos = source.indexOf(_SOURCE_PREFIX);
050    
051                    if (pos == -1) {
052                            return null;
053                    }
054    
055                    int x = source.indexOf(CharPool.SLASH, pos);
056                    int y = source.indexOf(CharPool.SLASH, x + 1);
057                    int z = source.indexOf(CharPool.SLASH, y + 1);
058    
059                    long companyId = GetterUtil.getLong(source.substring(x + 1, y));
060                    long groupId = GetterUtil.getLong(source.substring(y + 1, z));
061                    String templateId = source.substring(z + 1);
062    
063                    if (_log.isDebugEnabled()) {
064                            _log.debug(
065                                    "Loading {companyId=" + companyId + ", groupId=" + groupId +
066                                            ", templateId=" + templateId + "}");
067                    }
068    
069                    JournalTemplate journalTemplate =
070                            JournalTemplateLocalServiceUtil.getTemplate(groupId, templateId);
071    
072                    String xsl = journalTemplate.getXsl();
073    
074                    return new UnsyncByteArrayInputStream(xsl.getBytes());
075            }
076    
077            private static final String _SOURCE_PREFIX = JOURNAL_SEPARATOR.concat(
078                    StringPool.SLASH);
079    
080            private static Log _log = LogFactoryUtil.getLog(
081                    JournalTemplateVelocityResourceListener.class);
082    
083    }