/**
* 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.mapreduce.v2.app.webapp;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.StringReader;
import java.util.Map;
import javax.ws.rs.core.MediaType;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.ClusterInfo;
import org.apache.hadoop.mapreduce.v2.app.MockAppContext;
import org.apache.hadoop.mapreduce.v2.app.MockJobs;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.util.MRApps;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
import org.apache.hadoop.yarn.webapp.WebServicesTestUtils;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import com.google.common.collect.Maps;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.servlet.GuiceServletContextListener;
import com.google.inject.servlet.ServletModule;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.guice.spi.container.servlet.GuiceContainer;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.WebAppDescriptor;
/**
* Test the app master web service Rest API for getting the job conf. This
* requires created a temporary configuration file.
*
* /ws/v1/mapreduce/job/{jobid}/conf
*/
public class TestAMWebServicesJobConf extends JerseyTest {
private static Configuration conf = new Configuration();
private static AppContext appContext;
private static File testConfDir = new File("target",
TestAMWebServicesJobConf.class.getSimpleName() + "confDir");
private Injector injector = Guice.createInjector(new ServletModule() {
@Override
protected void configureServlets() {
Path confPath = new Path(testConfDir.toString(),
MRJobConfig.JOB_CONF_FILE);
Configuration config = new Configuration();
FileSystem localFs;
try {
localFs = FileSystem.getLocal(config);
confPath = localFs.makeQualified(confPath);
OutputStream out = localFs.create(confPath);
try {
conf.writeXml(out);
} finally {
out.close();
}
if (!localFs.exists(confPath)) {
fail("error creating config file: " + confPath);
}
} catch (IOException e) {
fail("error creating config file: " + e.getMessage());
}
appContext = new MockAppContext(0, 2, 1, confPath);
bind(JAXBContextResolver.class);
bind(AMWebServices.class);
bind(GenericExceptionHandler.class);
bind(AppContext.class).toInstance(appContext);
bind(Configuration.class).toInstance(conf);
serve("/*").with(GuiceContainer.class);
}
});
public class GuiceServletConfig extends GuiceServletContextListener {
@Override
protected Injector getInjector() {
return injector;
}
}
@Before
@Override
public void setUp() throws Exception {
super.setUp();
testConfDir.mkdir();
}
@AfterClass
static public void stop() {
FileUtil.fullyDelete(testConfDir);
}
public TestAMWebServicesJobConf() {
super(new WebAppDescriptor.Builder(
"org.apache.hadoop.mapreduce.v2.app.webapp")
.contextListenerClass(GuiceServletConfig.class)
.filterClass(com.google.inject.servlet.GuiceFilter.class)
.contextPath("jersey-guice-filter").servletPath("/").build());
}
@Test
public void testJobConf() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("conf")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("conf");
verifyAMJobConf(info, jobsMap.get(id));
}
}
@Test
public void testJobConfSlash() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("conf/")
.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("conf");
verifyAMJobConf(info, jobsMap.get(id));
}
}
@Test
public void testJobConfDefault() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("conf").get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
JSONObject json = response.getEntity(JSONObject.class);
assertEquals("incorrect number of elements", 1, json.length());
JSONObject info = json.getJSONObject("conf");
verifyAMJobConf(info, jobsMap.get(id));
}
}
@Test
public void testJobConfXML() throws JSONException, Exception {
WebResource r = resource();
Map<JobId, Job> jobsMap = appContext.getAllJobs();
for (JobId id : jobsMap.keySet()) {
String jobId = MRApps.toString(id);
ClientResponse response = r.path("ws").path("v1").path("mapreduce")
.path("jobs").path(jobId).path("conf")
.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_XML_TYPE, response.getType());
String xml = response.getEntity(String.class);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
Document dom = db.parse(is);
NodeList info = dom.getElementsByTagName("conf");
verifyAMJobConfXML(info, jobsMap.get(id));
}
}
public void verifyAMJobConf(JSONObject info, Job job) throws JSONException {
assertEquals("incorrect number of elements", 2, info.length());
WebServicesTestUtils.checkStringMatch("path", job.getConfFile().toString(),
info.getString("path"));
// just do simple verification of fields - not data is correct
// in the fields
JSONArray properties = info.getJSONArray("property");
for (int i = 0; i < properties.length(); i++) {
JSONObject prop = properties.getJSONObject(i);
String name = prop.getString("name");
String value = prop.getString("value");
assertTrue("name not set", (name != null && !name.isEmpty()));
assertTrue("value not set", (value != null && !value.isEmpty()));
}
}
public void verifyAMJobConfXML(NodeList nodes, Job job) {
assertEquals("incorrect number of elements", 1, nodes.getLength());
for (int i = 0; i < nodes.getLength(); i++) {
Element element = (Element) nodes.item(i);
WebServicesTestUtils.checkStringMatch("path", job.getConfFile()
.toString(), WebServicesTestUtils.getXmlString(element, "path"));
// just do simple verification of fields - not data is correct
// in the fields
NodeList properties = element.getElementsByTagName("property");
for (int j = 0; j < properties.getLength(); j++) {
Element property = (Element) properties.item(j);
assertNotNull("should have counters in the web service info", property);
String name = WebServicesTestUtils.getXmlString(property, "name");
String value = WebServicesTestUtils.getXmlString(property, "value");
assertTrue("name not set", (name != null && !name.isEmpty()));
assertTrue("name not set", (value != null && !value.isEmpty()));
}
}
}
}