[server] Serve vmchooser-compatible lecture list via http

1 files changed, 23 insertions, 2 deletions

diff --git a/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/web/WebServer.java b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/web/WebServer.java
index 02172616..a7a13305 100644
--- a/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/web/WebServer.java
+++ b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/web/WebServer.java
@@ -1,9 +1,29 @@
 package org.openslx.bwlp.sat.web;
 
+import java.io.ByteArrayInputStream;
+
+import org.apache.commons.io.output.ByteArrayOutputStream;
+import org.openslx.bwlp.sat.database.mappers.DbLecture;
+import org.openslx.util.GenericDataCache;
+import org.simpleframework.xml.Serializer;
+import org.simpleframework.xml.core.Persister;
+
 import fi.iki.elonen.NanoHTTPD;
 
 public class WebServer extends NanoHTTPD {
 
+	private static final GenericDataCache<byte[]> lectureListCache = new GenericDataCache<byte[]>(15000) {
+		Serializer serializer = new Persister();
+
+		@Override
+		protected byte[] update() throws Exception {
+			VmChooserListXml listXml = DbLecture.getUsableListXml(false);
+			ByteArrayOutputStream baos = new ByteArrayOutputStream();
+			serializer.write(listXml, baos);
+			return baos.toByteArray();
+		}
+	};
+
 	public WebServer(int port) {
 		super(port);
 	}
@@ -11,7 +31,7 @@ public class WebServer extends NanoHTTPD {
 	@Override
 	public Response serve(IHTTPSession session) {
 		String uri = session.getUri();
-		
+
 		if (uri == null || uri.length() == 0) {
 			return internalServerError();
 		}
@@ -25,7 +45,8 @@ public class WebServer extends NanoHTTPD {
 	}
 
 	private Response serveVmChooserList() {
-		return new NanoHTTPD.Response(NanoHTTPD.Response.Status.NOT_FOUND, "text/plain", "BLA");
+		return new NanoHTTPD.Response(NanoHTTPD.Response.Status.NOT_FOUND, "text/xml; charset=utf-8",
+				new ByteArrayInputStream(lectureListCache.get()));
 	}
 
 	private Response internalServerError() {