/*
* 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.
*/
package org.apache.hadoop.jmx;
import org.apache.hadoop.http.HttpServer2;
import org.apache.hadoop.http.HttpServerFunctionalTest;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static org.apache.hadoop.jmx.JMXJsonServlet.ACCESS_CONTROL_ALLOW_METHODS;
import static org.apache.hadoop.jmx.JMXJsonServlet.ACCESS_CONTROL_ALLOW_ORIGIN;
public class TestJMXJsonServlet extends HttpServerFunctionalTest {
private static HttpServer2 server;
private static URL baseUrl;
@BeforeClass public static void setup() throws Exception {
server = createTestServer();
server.start();
baseUrl = getServerURL(server);
}
@AfterClass public static void cleanup() throws Exception {
server.stop();
}
public static void assertReFind(String re, String value) {
Pattern p = Pattern.compile(re);
Matcher m = p.matcher(value);
assertTrue("'"+p+"' does not match "+value, m.find());
}
@Test public void testQury() throws Exception {
String result = readOutput(new URL(baseUrl, "/jmx?qry=java.lang:type=Runtime"));
assertReFind("\"name\"\\s*:\\s*\"java.lang:type=Runtime\"", result);
assertReFind("\"modelerType\"", result);
result = readOutput(new URL(baseUrl, "/jmx?qry=java.lang:type=Memory"));
assertReFind("\"name\"\\s*:\\s*\"java.lang:type=Memory\"", result);
assertReFind("\"modelerType\"", result);
result = readOutput(new URL(baseUrl, "/jmx"));
assertReFind("\"name\"\\s*:\\s*\"java.lang:type=Memory\"", result);
// test to get an attribute of a mbean
result = readOutput(new URL(baseUrl,
"/jmx?get=java.lang:type=Memory::HeapMemoryUsage"));
assertReFind("\"name\"\\s*:\\s*\"java.lang:type=Memory\"", result);
assertReFind("\"committed\"\\s*:", result);
// negative test to get an attribute of a mbean
result = readOutput(new URL(baseUrl,
"/jmx?get=java.lang:type=Memory::"));
assertReFind("\"ERROR\"", result);
// test to CORS headers
HttpURLConnection conn = (HttpURLConnection)
new URL(baseUrl, "/jmx?qry=java.lang:type=Memory").openConnection();
assertEquals("GET", conn.getHeaderField(ACCESS_CONTROL_ALLOW_METHODS));
assertNotNull(conn.getHeaderField(ACCESS_CONTROL_ALLOW_ORIGIN));
}
@Test
public void testTraceRequest() throws IOException {
URL url = new URL(baseUrl, "/jmx");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("TRACE");
assertEquals("Unexpected response code",
HttpServletResponse.SC_METHOD_NOT_ALLOWED, conn.getResponseCode());
}
}