SPR-5460: Add AtomView sample to PetClinic

org.springframework.samples.petclinic/src/main/java/org/springframework/samples/petclinic/Visit.java

@@ -63,7 +63,7 @@ public class Visit extends BaseEntity {
 	/** Setter for property pet.
 	 * @param pet New value of property pet.
 	 */
-	protected void setPet(Pet pet) {
+	public void setPet(Pet pet) {
 		this.pet = pet;
 	}
 

org.springframework.samples.petclinic/src/main/java/org/springframework/samples/petclinic/web/ClinicController.java

@@ -5,8 +5,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.samples.petclinic.Clinic;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.servlet.ModelAndView;
 
 /**
@@ -42,8 +43,8 @@ public class ClinicController {
 
 	/**
 	 * Custom handler for displaying vets.
-	 * <p>
-	 * Note that this handler returns a plain {@link ModelMap} object instead of
+	 *
+	 * <p>Note that this handler returns a plain {@link ModelMap} object instead of
 	 * a ModelAndView, thus leveraging convention-based model attribute names.
 	 * It relies on the RequestToViewNameTranslator to determine the logical
 	 * view name based on the request URL: "/vets.do" -&gt; "vets".
@@ -68,4 +69,17 @@ public class ClinicController {
 		return mav;
 	}
 
+	/**
+	 * Custom handler for displaying an list of visits.
+	 *
+	 * @param petId the ID of the pet whose visits to display
+	 * @return a ModelMap with the model attributes for the view
+	 */
+	@RequestMapping(value="/owners/*/pets/{petId}/visits", method=RequestMethod.GET)
+	public ModelAndView visitsHandler(@PathVariable int petId) {
+		ModelAndView mav = new ModelAndView("visits");
+		mav.addObject("visits", this.clinic.loadPet(petId).getVisits());
+		return mav;
+	}
+
 }

org.springframework.samples.petclinic/src/main/java/org/springframework/samples/petclinic/web/VisitsAtomView.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2002-2009 the original author or authors.
+ *
+ * Licensed 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.springframework.samples.petclinic.web;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import com.sun.syndication.feed.atom.Content;
+import com.sun.syndication.feed.atom.Entry;
+import com.sun.syndication.feed.atom.Feed;
+
+import org.springframework.samples.petclinic.Visit;
+import org.springframework.web.servlet.view.feed.AbstractAtomFeedView;
+
+/**
+ * A view creating a Atom representation from a list of Visit objects. 
+ * 
+ * @author Alef Arendsen
+ * @author Arjen Poutsma
+ */
+public class VisitsAtomView extends AbstractAtomFeedView {
+
+	@Override
+	protected void buildFeedMetadata(Map<String, Object> model, Feed feed, HttpServletRequest request) {
+		feed.setId("tag:springsource.com");
+		feed.setTitle("Pet Clinic Visits");
+		@SuppressWarnings("unchecked")
+		List<Visit> visits = (List<Visit>) model.get("visits");
+		for (Visit visit : visits) {
+			Date date = visit.getDate();
+			if (feed.getUpdated() == null || date.compareTo(feed.getUpdated()) > 0) {
+				feed.setUpdated(date);
+			}
+		}
+	}
+
+	@Override
+	protected List<Entry> buildFeedEntries(Map<String, Object> model,
+			HttpServletRequest request, HttpServletResponse response) throws Exception {
+
+		@SuppressWarnings("unchecked")
+		List<Visit> visits = (List<Visit>) model.get("visits");
+		List<Entry> entries = new ArrayList<Entry>(visits.size());
+
+		for (Visit visit : visits) {
+			Entry entry = new Entry();
+			String date = String.format("%1$tY-%1$tm-%1$td", visit.getDate());
+			// see http://diveintomark.org/archives/2004/05/28/howto-atom-id#other
+			entry.setId(String.format("tag:springsource.com,%s:%d", date, visit.getId()));
+			entry.setTitle(String.format("%s visit on %s", visit.getPet().getName(), date));
+			entry.setUpdated(visit.getDate());
+
+			Content summary = new Content();
+			summary.setValue(visit.getDescription());
+			entry.setSummary(summary);
+
+			entries.add(entry);
+		}
+
+		return entries;
+
+	}
+	
+}