Initial implementation of shared test cell warden.
Change-Id: Ia973d514fe1dd11ffe4cdb7c902cc43a9c2eb626
diff --git a/utils/warden/src/main/java/org/onlab/warden/WardenServlet.java b/utils/warden/src/main/java/org/onlab/warden/WardenServlet.java
new file mode 100644
index 0000000..9f6ad33
--- /dev/null
+++ b/utils/warden/src/main/java/org/onlab/warden/WardenServlet.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.onlab.warden;
+
+import com.google.common.io.ByteStreams;
+import org.eclipse.jetty.server.Response;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+
+/**
+ * Web socket servlet capable of creating web sockets for the STC monitor.
+ */
+public class WardenServlet extends HttpServlet {
+
+ static Warden warden;
+
+ @Override
+ protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+ throws ServletException, IOException {
+ resp.setContentType("text/plain; charset=UTF-8");
+ SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+ try (PrintWriter out = resp.getWriter()) {
+ for (String cellName : warden.getCells()) {
+ Reservation reservation = warden.currentCellReservation(cellName);
+ if (reservation != null) {
+ long expiration = reservation.time + reservation.duration * 60_000;
+ out.println(String.format("%-10s\t%-10s\t%s\t%s\t%s minutes", cellName,
+ reservation.userName,
+ fmt.format(new Date(reservation.time)),
+ fmt.format(new Date(expiration)),
+ reservation.duration));
+ } else {
+ out.println(String.format("%-10s\t%-10s", cellName, "available"));
+ }
+ }
+ } catch (Exception e) {
+ resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR);
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ protected void doPost(HttpServletRequest req, HttpServletResponse resp)
+ throws ServletException, IOException {
+ try (PrintWriter out = resp.getWriter()) {
+ String sshKey = new String(ByteStreams.toByteArray(req.getInputStream()), "UTF-8");
+ String userName = req.getParameter("user");
+ String sd = req.getParameter("duration");
+ int duration = isNullOrEmpty(sd) ? 60 : Integer.parseInt(sd);
+ String cellDefinition = warden.borrowCell(userName, sshKey, duration);
+ out.println(cellDefinition);
+ } catch (Exception e) {
+ resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR);
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ protected void doDelete(HttpServletRequest req, HttpServletResponse resp)
+ throws ServletException, IOException {
+ try (PrintWriter out = resp.getWriter()) {
+ String userName = req.getParameter("user");
+ warden.returnCell(userName);
+ } catch (Exception e) {
+ resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR);
+ e.printStackTrace();
+ }
+ }
+}