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@@ -0,0 +1,64 @@
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+/**
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+ * Licensed to the Apache Software Foundation (ASF) under one
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+ * or more contributor license agreements. See the NOTICE file
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+ * distributed with this work for additional information
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+ * regarding copyright ownership. The ASF licenses this file
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+ * to you under the Apache License, Version 2.0 (the
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+ * "License"); you may not use this file except in compliance
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+ * with the License. You may obtain a copy of the License at
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+ * <p>
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ * <p>
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+package org.apache.ambari.view.zeppelin;
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+
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+import org.apache.http.HttpResponse;
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+import org.apache.http.client.HttpClient;
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+import org.apache.http.client.methods.HttpGet;
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+import org.apache.http.impl.client.HttpClientBuilder;
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+import org.json.JSONObject;
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+
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+import javax.servlet.ServletConfig;
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+import javax.servlet.ServletException;
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+import javax.servlet.http.HttpServlet;
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+import javax.servlet.http.HttpServletRequest;
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+import javax.servlet.http.HttpServletResponse;
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+import java.io.IOException;
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+import java.io.PrintWriter;
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+
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+
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+public class ZeppelinServiceCheck extends HttpServlet {
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+ @Override
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+ public void init(ServletConfig config) throws ServletException {
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+ super.init(config);
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+ }
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+
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+ @Override
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+ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
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+ String url = "http:" + request.getParameter("url");
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+ PrintWriter printwriter = response.getWriter();
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+ JSONObject json = new JSONObject();
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+ response.setContentType("application/json");
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+ response.setStatus(HttpServletResponse.SC_OK);
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+
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+ try {
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+ HttpClient httpclient = HttpClientBuilder.create().build();
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+ HttpGet httpget = new HttpGet(url);
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+ HttpResponse httpresponse = httpclient.execute(httpget);
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+ if (httpresponse.getStatusLine().getStatusCode() == 200) {
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+ json.put("status", "SUCCESS");
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+ json.put("message", "Zeppelin is running");
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+ }
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+ } catch (Exception e) {
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+ json.put("status", "ERROR");
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+ json.put("message", "Zeppelin is not running");
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+ }
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+ printwriter.print(json.toString());
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+ }
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+}
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Pallav Kulshreshtha