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130 changes: 130 additions & 0 deletions
130
src/main/java/org/jbake/template/ThymeleafTemplateEngine.java
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| @@ -0,0 +1,130 @@ | ||
| package org.jbake.template; | ||
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| import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx; | ||
| import com.orientechnologies.orient.core.record.impl.ODocument; | ||
| import com.orientechnologies.orient.core.sql.query.OSQLSynchQuery; | ||
| import org.apache.commons.configuration.CompositeConfiguration; | ||
| import org.jbake.app.DBUtil; | ||
| import org.jbake.app.DocumentList; | ||
| import org.jbake.model.DocumentTypes; | ||
| import org.thymeleaf.TemplateEngine; | ||
| import org.thymeleaf.context.Context; | ||
| import org.thymeleaf.context.VariablesMap; | ||
| import org.thymeleaf.templateresolver.FileTemplateResolver; | ||
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|
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| import java.io.File; | ||
| import java.io.Writer; | ||
| import java.util.Collections; | ||
| import java.util.Date; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Locale; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
| import java.util.concurrent.locks.ReentrantLock; | ||
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| /** | ||
| * <p>A template engine which renders pages using Thymeleaf.</p> | ||
| * | ||
| * <p>This template engine is not recommanded for large sites because the whole model | ||
| * is loaded into memory due to Thymeleaf internal limitations.</p> | ||
| * | ||
| * <p>The default rendering mode is "HTML5", but it is possible to use another mode | ||
| * for each document type, by adding a key in the configuration, for example:</p> | ||
| * <p/> | ||
| * <code> | ||
| * template.feed.thymeleaf.mode=XML | ||
| * </code> | ||
| * | ||
| * @author Cédric Champeau | ||
| */ | ||
| public class ThymeleafTemplateEngine extends AbstractTemplateEngine { | ||
| private final ReentrantLock lock = new ReentrantLock(); | ||
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| private TemplateEngine templateEngine; | ||
| private FileTemplateResolver templateResolver; | ||
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| public ThymeleafTemplateEngine(final CompositeConfiguration config, final ODatabaseDocumentTx db, final File destination, final File templatesPath) { | ||
| super(config, db, destination, templatesPath); | ||
| initializeTemplateEngine(); | ||
| } | ||
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| private void initializeTemplateEngine() { | ||
| templateResolver = new FileTemplateResolver(); | ||
| templateResolver.setPrefix(templatesPath.getAbsolutePath() + File.separatorChar); | ||
| templateEngine = new TemplateEngine(); | ||
| templateEngine.setTemplateResolver(templateResolver); | ||
| } | ||
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| @Override | ||
| public void renderDocument(final Map<String, Object> model, final String templateName, final Writer writer) throws RenderingException { | ||
| String localeString = config.getString("thymeleaf.locale"); | ||
| Locale locale = localeString != null ? Locale.forLanguageTag(localeString) : Locale.getDefault(); | ||
| Context context = new Context(locale, wrap(model)); | ||
| lock.lock(); | ||
| try { | ||
| @SuppressWarnings("unchecked") | ||
| Map<String, Object> config = (Map<String, Object>) model.get("config"); | ||
| @SuppressWarnings("unchecked") | ||
| Map<String, Object> content = (Map<String, Object>) model.get("content"); | ||
| String mode = "HTML5"; | ||
| if (config != null && content != null) { | ||
| String key = "template_" + content.get("type") + "_thymeleaf_mode"; | ||
| String configMode = (String) config.get(key); | ||
| if (configMode != null) { | ||
| mode = configMode; | ||
| } | ||
| } | ||
| templateResolver.setTemplateMode(mode); | ||
| templateEngine.process(templateName, context, writer); | ||
| } finally { | ||
| lock.unlock(); | ||
| } | ||
| } | ||
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| private VariablesMap<String, Object> wrap(final Map<String, Object> model) { | ||
| return new JBakeVariablesMap(model); | ||
| } | ||
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| private class JBakeVariablesMap extends VariablesMap<String, Object> { | ||
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| public JBakeVariablesMap(final Map<String, Object> model) { | ||
| super(model); | ||
| completeModel(); | ||
| } | ||
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| private void completeModel() { | ||
| put("db", db); | ||
| put("alltags", getAllTags()); | ||
| put("tag_posts", getTagPosts()); | ||
| put("published_date", new Date()); | ||
| String[] documentTypes = DocumentTypes.getDocumentTypes(); | ||
| for (String docType : documentTypes) { | ||
| put(docType + "s", DocumentList.wrap(DBUtil.query(db, "select * from " + docType + " order by date desc").iterator())); | ||
| put("published_" + docType + "s", DocumentList.wrap(DBUtil.query(db, "select * from " + docType + " where status='published' order by date desc").iterator())); | ||
| } | ||
| } | ||
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| private Object getTagPosts() { | ||
| Object tagName = get("tag"); | ||
| if (tagName != null) { | ||
| String tag = tagName.toString(); | ||
| // fetch the tag posts from db | ||
| List<ODocument> query = DBUtil.query(db, "select * from post where status='published' where ? in tags order by date desc", tag); | ||
| return DocumentList.wrap(query.iterator()); | ||
| } else { | ||
| return Collections.emptyList(); | ||
| } | ||
| } | ||
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| private Object getAllTags() { | ||
| List<ODocument> query = db.query(new OSQLSynchQuery<ODocument>("select tags from post where status='published'")); | ||
| Set<String> result = new HashSet<String>(); | ||
| for (ODocument document : query) { | ||
| String[] tags = DBUtil.toStringArray(document.field("tags")); | ||
| Collections.addAll(result, tags); | ||
| } | ||
| return result; | ||
| } | ||
| } | ||
| } |
3 changes: 2 additions & 1 deletion
3
src/main/resources/META-INF/org.jbake.parser.TemplateEngines.properties
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| @@ -1,2 +1,3 @@ | ||
| org.jbake.template.FreemarkerTemplateEngine=ftl | ||
| org.jbake.template.GroovyTemplateEngine=groovy,gsp,gxml | ||
| org.jbake.template.GroovyTemplateEngine=groovy,gsp,gxml | ||
| org.jbake.template.ThymeleafTemplateEngine=thyme |
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