Author: reto
Date: Tue Nov 20 20:19:29 2012
New Revision: 1411845
URL: http://svn.apache.org/viewvc?rev=1411845&view=rev
Log:
STANBOL-742: added near drop-in replacement for jersey viewable
Added:
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/Viewable.java
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/mbw/ViewableWriter.java
Added:
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/Viewable.java
URL:
http://svn.apache.org/viewvc/stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/Viewable.java?rev=1411845&view=auto
==============================================================================
---
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/Viewable.java
(added)
+++
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/Viewable.java
Tue Nov 20 20:19:29 2012
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.stanbol.commons.ldviewable;
+
+
+/**
+ * This is a replacement for the jersey Vieable that allows rendering an
+ * arbitrary object using a Freemarker template specified by path.
+ *
+ * Usage of this class promotes a bad programming style where the
+ * application logic is not clearly separated from the presentation but
+ * where backend method are called by the presentation layer.
+ *
+ * Users should consider migrate to LdViewable instead where instead of
+ * an arbitrary Object a GraphNode representing a node in a graph is passed,
+ * this approach also allows the response to be rendered as RDF.
+ *
+ */
+public class Viewable {
+
+ /**
+ * This uses the class name of Pojo to prefix the template
+ *
+ * @param templatePath the templatePath
+ * @param graphNode the graphNode with the actual content
+ */
+ public Viewable(final String templatePath, final Object pojo) {
+ this(templatePath, pojo, pojo.getClass());
+ }
+
+ /**
+ * With this version of the constructor the templatePath is prefixed
with
+ * the slash-separated class name of clazz.
+ *
+ */
+ public Viewable(final String templatePath, final Object pojo, final
Class<?> clazz) {
+ final String slahSeparatedPacakgeName =
clazz.getName().replace('.', '/');
+ if (templatePath.startsWith("/")) {
+ this.templatePath =
slahSeparatedPacakgeName+templatePath;
+ } else {
+ this.templatePath =
slahSeparatedPacakgeName+'/'+templatePath;
+ }
+ this.pojo = pojo;
+ }
+
+ private String templatePath;
+ private Object pojo;
+
+ public String getTemplatePath() {
+ return templatePath;
+ }
+
+ public Object getPojo() {
+ return pojo;
+ }
+}
Added:
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/mbw/ViewableWriter.java
URL:
http://svn.apache.org/viewvc/stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/mbw/ViewableWriter.java?rev=1411845&view=auto
==============================================================================
---
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/mbw/ViewableWriter.java
(added)
+++
stanbol/trunk/commons/web/ldviewable/src/main/java/org/apache/stanbol/commons/ldviewable/mbw/ViewableWriter.java
Tue Nov 20 20:19:29 2012
@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.stanbol.commons.ldviewable.mbw;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+import javax.ws.rs.Produces;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyWriter;
+
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.stanbol.commons.ldpathtemplate.LdRenderer;
+import org.apache.stanbol.commons.ldviewable.Viewable;
+
+@Component
+@Service(ViewableWriter.class)
+@Produces("text/html")
+public class ViewableWriter implements MessageBodyWriter<Viewable> {
+
+ @Reference
+ private LdRenderer ldRenderer;
+
+ @Override
+ public boolean isWriteable(Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType) {
+ return Viewable.class.isAssignableFrom(type);
+ }
+
+ @Override
+ public long getSize(Viewable t, Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType) {
+ return -1;
+ }
+
+ @Override
+ public void writeTo(final Viewable t, Class<?> type, Type genericType,
+ Annotation[] annotations, MediaType mediaType,
+ MultivaluedMap<String, Object> httpHeaders,
+ OutputStream entityStream) throws IOException,
+ WebApplicationException {
+ Writer out = new OutputStreamWriter(entityStream, "utf-8");
+ ldRenderer.renderPojo(new Wrapper(t.getPojo()),
"html/"+t.getTemplatePath(), out);
+ out.flush();
+ }
+ static public class Wrapper {
+
+ private Object wrapped;
+ public Wrapper(Object wrapped) {
+ this.wrapped = wrapped;
+ }
+ public Object getIt() {
+ return wrapped;
+ }
+
+
+ }
+
+}
