/**
* 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.yarn.server.resourcemanager.webapp;
import static org.apache.hadoop.yarn.util.StringHelper.join;
import static org.apache.hadoop.yarn.webapp.YarnWebParams.APPLICATION_ID;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI._EVEN;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI._INFO_WRAP;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI._ODD;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI._TH;
import java.util.Collection;
import com.google.inject.Inject;
import org.apache.hadoop.http.HttpConfig;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptInfo;
import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
import org.apache.hadoop.yarn.util.Apps;
import org.apache.hadoop.yarn.util.Times;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.DIV;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import org.apache.hadoop.yarn.webapp.view.InfoBlock;
public class AppBlock extends HtmlBlock {
private ApplicationACLsManager aclsManager;
@Inject
AppBlock(ResourceManager rm, ViewContext ctx, ApplicationACLsManager aclsManager) {
super(ctx);
this.aclsManager = aclsManager;
}
@Override
protected void render(Block html) {
String aid = $(APPLICATION_ID);
if (aid.isEmpty()) {
puts("Bad request: requires application ID");
return;
}
ApplicationId appID = null;
try {
appID = Apps.toAppID(aid);
} catch (Exception e) {
puts("Invalid Application ID: " + aid);
return;
}
RMContext context = getInstance(RMContext.class);
RMApp rmApp = context.getRMApps().get(appID);
if (rmApp == null) {
puts("Application not found: "+ aid);
return;
}
AppInfo app = new AppInfo(rmApp, true);
// Check for the authorization.
String remoteUser = request().getRemoteUser();
UserGroupInformation callerUGI = null;
if (remoteUser != null) {
callerUGI = UserGroupInformation.createRemoteUser(remoteUser);
}
if (callerUGI != null
&& !this.aclsManager.checkAccess(callerUGI,
ApplicationAccessType.VIEW_APP, app.getUser(), appID)) {
puts("You (User " + remoteUser
+ ") are not authorized to view application " + appID);
return;
}
setTitle(join("Application ", aid));
info("Application Overview").
_("User:", app.getUser()).
_("Name:", app.getName()).
_("Application Type:", app.getApplicationType()).
_("State:", app.getState()).
_("FinalStatus:", app.getFinalStatus()).
_("Started:", Times.format(app.getStartTime())).
_("Elapsed:", StringUtils.formatTime(
Times.elapsed(app.getStartTime(), app.getFinishTime()))).
_("Tracking URL:", !app.isTrackingUrlReady() ?
"#" : app.getTrackingUrlPretty(), app.getTrackingUI()).
_("Diagnostics:", app.getNote());
Collection<RMAppAttempt> attempts = rmApp.getAppAttempts().values();
String amString =
attempts.size() == 1 ? "ApplicationMaster" : "ApplicationMasters";
DIV<Hamlet> div = html.
_(InfoBlock.class).
div(_INFO_WRAP);
// MRAppMasters Table
TABLE<DIV<Hamlet>> table = div.table("#app");
table.
tr().
th(amString).
_().
tr().
th(_TH, "Attempt Number").
th(_TH, "Start Time").
th(_TH, "Node").
th(_TH, "Logs").
_();
boolean odd = false;
for (RMAppAttempt attempt : attempts) {
AppAttemptInfo attemptInfo = new AppAttemptInfo(attempt, app.getUser());
table.tr((odd = !odd) ? _ODD : _EVEN).
td(String.valueOf(attemptInfo.getAttemptId())).
td(Times.format(attemptInfo.getStartTime())).
td().a(".nodelink", url(HttpConfig.getSchemePrefix(),
attemptInfo.getNodeHttpAddress()),
attemptInfo.getNodeHttpAddress())._().
td().a(".logslink", url(attemptInfo.getLogsLink()), "logs")._().
_();
}
table._();
div._();
}
}