001    /**
002     * Copyright (c) 2000-2010 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.freemarker;
016    
017    import com.liferay.portal.kernel.exception.PortalException;
018    import com.liferay.portal.kernel.exception.SystemException;
019    import com.liferay.portal.kernel.io.unsync.UnsyncBufferedReader;
020    import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayInputStream;
021    import com.liferay.portal.kernel.log.Log;
022    import com.liferay.portal.kernel.log.LogFactoryUtil;
023    import com.liferay.portal.kernel.util.GetterUtil;
024    import com.liferay.portal.kernel.util.StringPool;
025    import com.liferay.portlet.journal.NoSuchTemplateException;
026    import com.liferay.portlet.journal.model.JournalTemplate;
027    import com.liferay.portlet.journal.service.JournalTemplateLocalServiceUtil;
028    
029    import java.io.IOException;
030    import java.io.InputStreamReader;
031    import java.io.Reader;
032    
033    /**
034     * @author Mika Koivisto
035     */
036    public class JournalTemplateLoader extends FreeMarkerTemplateLoader {
037    
038            public Object findTemplateSource(String name) throws IOException {
039                    try {
040                            int pos = name.indexOf(JOURNAL_SEPARATOR + StringPool.SLASH);
041    
042                            if (pos != -1) {
043                                    int x = name.indexOf(StringPool.SLASH, pos);
044                                    int y = name.indexOf(StringPool.SLASH, x + 1);
045                                    int z = name.indexOf(StringPool.SLASH, y + 1);
046    
047                                    long companyId = GetterUtil.getLong(name.substring(x + 1, y));
048                                    long groupId = GetterUtil.getLong(name.substring(y + 1, z));
049                                    String templateId = name.substring(z + 1);
050    
051                                    if (_log.isDebugEnabled()) {
052                                            _log.debug(
053                                                    "Loading {companyId=" + companyId + ",groupId=" +
054                                                            groupId + ",templateId=" + templateId + "}");
055                                    }
056    
057                                    JournalTemplate template =
058                                            JournalTemplateLocalServiceUtil.getTemplate(
059                                                    groupId, templateId);
060    
061                                    return template;
062                            }
063                    }
064                    catch (NoSuchTemplateException nste) {
065                            return null;
066                    }
067                    catch (PortalException pe) {
068                            throw new IOException("Template {" + name + "} not found");
069                    }
070                    catch (SystemException se) {
071                            throw new IOException("Template {" + name + "} not found");
072                    }
073    
074                    return null;
075            }
076    
077            public long getLastModified(Object templateSource) {
078                    if (templateSource instanceof JournalTemplate) {
079                            JournalTemplate template = (JournalTemplate)templateSource;
080    
081                            return template.getModifiedDate().getTime();
082                    }
083    
084                    return -1;
085            }
086    
087            public Reader getReader(Object templateSource, String encoding)
088                    throws IOException {
089    
090                    if (templateSource instanceof JournalTemplate) {
091                            JournalTemplate template = (JournalTemplate)templateSource;
092    
093                            String xsl = template.getXsl();
094    
095                            return new UnsyncBufferedReader(
096                                    new InputStreamReader(
097                                            new UnsyncByteArrayInputStream(xsl.getBytes()), encoding));
098                    }
099    
100                    return null;
101            }
102    
103            private static Log _log = LogFactoryUtil.getLog(
104                    JournalTemplateLoader.class);
105    
106    }