Task #3805: Major changes related to Task #3805

* Added session controller with method to get session by id
* Created session class to be used as entity object
* Created session service class and interface
* Added content negotiation view resolver to map entity objects to JSON

src/main/java/de/thm/arsnova/SessionController.java

+package de.thm.arsnova;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import de.thm.arsnova.entities.Session;
+import de.thm.arsnova.services.ISessionService;
+
+@Controller
+public class SessionController {
+	
+	@Autowired
+	ISessionService sessionService;
+	
+	@RequestMapping("/session/{sessionkey}")
+	public Session getSession(@PathVariable String sessionkey, HttpServletResponse response) {
+		Session session = sessionService.getSession(sessionkey);
+		if (session != null) return session;
+		
+		response.setStatus(HttpStatus.NOT_FOUND.value());
+		return null;
+	}
+}

src/main/java/de/thm/arsnova/entities/Session.java

+package de.thm.arsnova.entities;
+
+
+public class Session {
+	
+	private String type;
+	private String name;
+	private String shortName;
+	private String keyword;
+	private String creator;
+	private boolean active;
+	private String _id;
+	private String _rev;
+	
+	public String getType() {
+		return type;
+	}
+	public void setType(String type) {
+		this.type = type;
+	}
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public String getShortName() {
+		return shortName;
+	}
+	public void setShortName(String shortName) {
+		this.shortName = shortName;
+	}
+	public String getKeyword() {
+		return keyword;
+	}
+	public void setKeyword(String keyword) {
+		this.keyword = keyword;
+	}
+	public String getCreator() {
+		return creator;
+	}
+	public void setCreator(String creator) {
+		this.creator = creator;
+	}
+	public boolean isActive() {
+		return active;
+	}
+	public void setActive(boolean active) {
+		this.active = active;
+	}
+	
+	public void set_id(String id) {}
+	public void set_rev(String rev) {}
+	
+}

src/main/java/de/thm/arsnova/services/ISessionService.java

+package de.thm.arsnova.services;
+
+import de.thm.arsnova.entities.Session;
+
+
+public interface ISessionService {
+
+	public Session getSession(String keyword);
+	
+}
\ No newline at end of file

src/main/java/de/thm/arsnova/services/SessionService.java

+package de.thm.arsnova.services;
+
+import java.net.URLEncoder;
+
+import net.sf.json.JSONObject;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+
+import com.fourspaces.couchdb.Database;
+import com.fourspaces.couchdb.View;
+import com.fourspaces.couchdb.ViewResults;
+
+import de.thm.arsnova.entities.Session;
+
+@Service
+public class SessionService implements ISessionService {
+
+	private final com.fourspaces.couchdb.Session session = new com.fourspaces.couchdb.Session("localhost", 5984);
+	public static final Logger logger = LoggerFactory
+			.getLogger(SessionService.class);
+
+	@Override
+	public Session getSession(String keyword) {
+		Database db = session.getDatabase("arsnova");
+		View view = new View("session/by_keyword");
+		view.setKey(URLEncoder.encode("\""+keyword+"\""));
+		ViewResults results = db.view(view);
+
+		if (results.getJSONArray("rows").optJSONObject(0) == null) return null;
+		
+		Session result = (Session)JSONObject.toBean(results.getJSONArray("rows").optJSONObject(0).optJSONObject("value"), Session.class);
+		return result;
+	}
+
+}

src/main/webapp/WEB-INF/arsnova-servlet.xml

@@ -12,28 +12,48 @@
 	<context:annotation-config />
 
 	<mvc:resources mapping="/**.html" location="/" />
-	<mvc:resources mapping="/**.png" location="/"/>
-	<mvc:resources mapping="/**.manifest" location="/"/>
-	<mvc:resources mapping="/**.json" location="/"/>
-	<mvc:resources mapping="/**.xml" location="/"/>
-	<mvc:resources mapping="/dojo/**" location="/dojo/"/>
-	<mvc:resources mapping="/dijit/**" location="/dijit/"/>
-	<mvc:resources mapping="/dojox/**" location="/dojox/"/>
-	<mvc:resources mapping="/app/**" location="/app/"/>
-	<mvc:resources mapping="/views/**" location="/views/"/>
-	<mvc:resources mapping="/lib/**" location="/lib/"/>
-	<mvc:resources mapping="/resources/**" location="/resources/"/>
-	<mvc:resources mapping="/screenshots/**" location="/screenshots/"/>
-        <mvc:resources mapping="/templates/**" location="/templates/"/>
-	
+	<mvc:resources mapping="/**.png" location="/" />
+	<mvc:resources mapping="/**.manifest" location="/" />
+	<mvc:resources mapping="/**.json" location="/" />
+	<mvc:resources mapping="/**.xml" location="/" />
+	<mvc:resources mapping="/dojo/**" location="/dojo/" />
+	<mvc:resources mapping="/dijit/**" location="/dijit/" />
+	<mvc:resources mapping="/dojox/**" location="/dojox/" />
+	<mvc:resources mapping="/app/**" location="/app/" />
+	<mvc:resources mapping="/views/**" location="/views/" />
+	<mvc:resources mapping="/lib/**" location="/lib/" />
+	<mvc:resources mapping="/resources/**" location="/resources/" />
+	<mvc:resources mapping="/screenshots/**" location="/screenshots/" />
+	<mvc:resources mapping="/templates/**" location="/templates/" />
+
 	<mvc:annotation-driven />
 
-	<bean id="viewResolver"
-		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
-		<property name="viewClass"
-			value="org.springframework.web.servlet.view.JstlView" />
-		<property name="prefix" value="/WEB-INF/views/" />
-		<property name="suffix" value=".jsp" />
+	<bean
+		class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
+	<bean
+		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
+		<property name="messageConverters">
+			<list>
+				<bean
+					class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
+			</list>
+		</property>
+	</bean>
+
+	<bean
+		class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
+		<property name="mediaTypes">
+			<map>
+				<entry key="json" value="application/json" />
+			</map>
+		</property>
+
+		<property name="defaultViews">
+			<list>
+				<bean
+					class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
+			</list>
+		</property>
 	</bean>
 
 </beans>

src/main/webapp/config.properties.example

 security.openid-target-url=http://localhost:8080/arsnova-war/doOpenIdLogin
 security.cas-check-url=http://localhost:8080/arsnova-war/j_spring_cas_security_check
-security.cas-service-url=https://cas.thm.de/cas
\ No newline at end of file
+security.cas-service-url=https://cas.thm.de/cas
+
+couchdb.host=localhost
+couchdb.port=5984
+couchdb.name=arsnova
\ No newline at end of file