examples/webapps/hello-world-sql/src/main/webapp/hadoop-wordcount.jsp - incubator-brooklyn - Git at Google

 <%@ page language="java" import="java.sql.*"%>

 <html>
 <!--
     Licensed to the Apache Software Foundation (ASF) under one
     or more contributor license agreements.  See the NOTICE file
     distributed with this work for additional information
     regarding copyright ownership.  The ASF licenses this file
     to you 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.
 -->
 <head>
 <title>Sample Application Database JSP Page</title>
 </head>
 <body bgcolor=white>

 <table border="0">
 <tr>
 <td align=center>
 <img src="images/bridge-small.png">
 </td>
 <td>
 <h1>Sample Brooklyn Deployed WebApp (Database JSP)</h1>
 This is the output of a JSP page that is part of the Hello, World application,
 deployed by brooklyn, to show <b>a hadoop map-reduce task run<b>.
 </td>
 </tr>
 </table>

 <%
 String hadoop=System.getProperty("brooklyn.example.hadoop.site.xml.url");
 String hadoopJar=System.getProperty("brooklyn.example.hadoop.custom.jar.url");
 if (hadoop==null) {
 %>
     <p>There is no hadoop included as part of this example. Set brooklyn.example.hadoop.site.xml.url to proceed.</p>
 <% } else if (hadoopJar==null) {
 %>
     <p>brooklyn.example.hadoop.custom.jar.url must be set to point to the Jar.</p>
 <%} else { /* begin hadoop-enabled block */

 try {
     org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
     conf.setClassLoader(brooklyn.demo.webapp.hello.HadoopWordCount.class.getClassLoader());
     conf.addResource(new java.net.URL(hadoop));
     org.apache.hadoop.fs.FileSystem fsClient = org.apache.hadoop.fs.FileSystem.get(conf);
     if (fsClient==null) throw new NullPointerException("Can't access fsClient at "+hadoop);

     org.apache.hadoop.mapreduce.Job job = brooklyn.demo.webapp.hello.HadoopWordCount.makeJob(conf);
     ((org.apache.hadoop.mapred.JobConf)job.getConfiguration()).setJar(hadoopJar);
     org.apache.hadoop.fs.FileStatus[] files = fsClient.listStatus(new org.apache.hadoop.fs.Path("chats"));
     if (files==null) files = new org.apache.hadoop.fs.FileStatus[0];
     for (org.apache.hadoop.fs.FileStatus f: files) {
         org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath(job, f.getPath());
     }

     org.apache.hadoop.fs.Path outp = new org.apache.hadoop.fs.Path("out-"+((int)(Math.random()*10000)));
     org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.setOutputPath(job, outp);

     boolean result = job.waitForCompletion(true);

     if (!result) {
         %> <p><b></b><i>Map reduce job returned non-zero result code.</i></b></p> <%
     }

     %> <p>Output from map reduce is as follows:</p> <%

     files = fsClient.listStatus(outp);
     if (files==null) files = new org.apache.hadoop.fs.FileStatus[0];
     for (org.apache.hadoop.fs.FileStatus f: files) {
         try {
             if (!f.isDir() && f.getLen()>0) {
                 %>
                 <%= f.getPath() %>:<br/>
                 <pre><%= brooklyn.demo.webapp.hello.DemoUtils.stringFromInputStream(fsClient.open(f.getPath())) %></pre>
                 <%
             }
         } catch (Exception e) {
             %> Error: <%= e %><%
         }
     }
     if (files.length==0) {
     %>
       <i>No output.</i> </li>
     <%
     }

     fsClient.delete(outp, true);

 } catch (Exception e) {
 %>
     <b>Error connecting to Hadoop.</b><br/>
     ERROR: <%= e %><br/>
     <pre> <%= brooklyn.demo.webapp.hello.DemoUtils.getStackTrace(e) %></pre>
 <%
 }
 }
 %>

     <br/>
     <p>Click <a href="hadoop-chat.jsp">here</a> to view the chat room.</p>
     <p>Click <a href="index.html">here</a> to go back to the main page.</p>

 </body>
 </html>
	<%@ page language="java" import="java.sql.*"%>

	<html>
	<!--
	Licensed to the Apache Software Foundation (ASF) under one
	or more contributor license agreements. See the NOTICE file
	distributed with this work for additional information
	regarding copyright ownership. The ASF licenses this file
	to you 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.
	-->
	<head>
	<title>Sample Application Database JSP Page</title>
	</head>
	<body bgcolor=white>

	<table border="0">
	<tr>
	<td align=center>
	<img src="images/bridge-small.png">
	</td>
	<td>
	<h1>Sample Brooklyn Deployed WebApp (Database JSP)</h1>
	This is the output of a JSP page that is part of the Hello, World application,
	deployed by brooklyn, to show <b>a hadoop map-reduce task run<b>.
	</td>
	</tr>
	</table>

	<%
	String hadoop=System.getProperty("brooklyn.example.hadoop.site.xml.url");
	String hadoopJar=System.getProperty("brooklyn.example.hadoop.custom.jar.url");
	if (hadoop==null) {
	%>
	<p>There is no hadoop included as part of this example. Set brooklyn.example.hadoop.site.xml.url to proceed.</p>
	<% } else if (hadoopJar==null) {
	%>
	<p>brooklyn.example.hadoop.custom.jar.url must be set to point to the Jar.</p>
	<%} else { /* begin hadoop-enabled block */

	try {
	org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
	conf.setClassLoader(brooklyn.demo.webapp.hello.HadoopWordCount.class.getClassLoader());
	conf.addResource(new java.net.URL(hadoop));
	org.apache.hadoop.fs.FileSystem fsClient = org.apache.hadoop.fs.FileSystem.get(conf);
	if (fsClient==null) throw new NullPointerException("Can't access fsClient at "+hadoop);

	org.apache.hadoop.mapreduce.Job job = brooklyn.demo.webapp.hello.HadoopWordCount.makeJob(conf);
	((org.apache.hadoop.mapred.JobConf)job.getConfiguration()).setJar(hadoopJar);
	org.apache.hadoop.fs.FileStatus[] files = fsClient.listStatus(new org.apache.hadoop.fs.Path("chats"));
	if (files==null) files = new org.apache.hadoop.fs.FileStatus[0];
	for (org.apache.hadoop.fs.FileStatus f: files) {
	org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath(job, f.getPath());
	}

	org.apache.hadoop.fs.Path outp = new org.apache.hadoop.fs.Path("out-"+((int)(Math.random()*10000)));
	org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.setOutputPath(job, outp);

	boolean result = job.waitForCompletion(true);

	if (!result) {
	%> <p><b></b><i>Map reduce job returned non-zero result code.</i></b></p> <%
	}

	%> <p>Output from map reduce is as follows:</p> <%

	files = fsClient.listStatus(outp);
	if (files==null) files = new org.apache.hadoop.fs.FileStatus[0];
	for (org.apache.hadoop.fs.FileStatus f: files) {
	try {
	if (!f.isDir() && f.getLen()>0) {
	%>
	<%= f.getPath() %>:<br/>
	<pre><%= brooklyn.demo.webapp.hello.DemoUtils.stringFromInputStream(fsClient.open(f.getPath())) %></pre>
	<%
	}
	} catch (Exception e) {
	%> Error: <%= e %><%
	}
	}
	if (files.length==0) {
	%>
	<i>No output.</i> </li>
	<%
	}

	fsClient.delete(outp, true);

	} catch (Exception e) {
	%>
	<b>Error connecting to Hadoop.</b><br/>
	ERROR: <%= e %><br/>
	<pre> <%= brooklyn.demo.webapp.hello.DemoUtils.getStackTrace(e) %></pre>
	<%
	}
	}
	%>

	<br/>
	<p>Click <a href="hadoop-chat.jsp">here</a> to view the chat room.</p>
	<p>Click <a href="index.html">here</a> to go back to the main page.</p>

	</body>
	</html>