/**
* 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.apache.hadoop.mapreduce.v2.app.webapp.AMParams.TASK_STATE;
import static org.apache.hadoop.mapreduce.v2.app.webapp.AMParams.TASK_TYPE;
import static org.apache.hadoop.yarn.util.StringHelper.join;
import static org.apache.hadoop.yarn.util.StringHelper.percent;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.C_PROGRESSBAR;
import static org.apache.hadoop.yarn.webapp.view.JQueryUI.C_PROGRESSBAR_VALUE;
import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
import org.apache.hadoop.mapreduce.v2.app.job.Task;
import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo;
import org.apache.hadoop.mapreduce.v2.util.MRApps;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TABLE;
import org.apache.hadoop.yarn.webapp.hamlet.Hamlet.TBODY;
import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
import com.google.inject.Inject;
public class TasksBlock extends HtmlBlock {
final App app;
@Inject TasksBlock(App app) {
this.app = app;
}
@Override protected void render(Block html) {
if (app.getJob() == null) {
html.
h2($(TITLE));
return;
}
TaskType type = null;
String symbol = $(TASK_TYPE);
if (!symbol.isEmpty()) {
type = MRApps.taskType(symbol);
}
TBODY<TABLE<Hamlet>> tbody = html.
table("#tasks").
thead().
tr().
th("Task").
th("Progress").
th("Status").
th("State").
th("Start Time").
th("Finish Time").
th("Elapsed Time")._()._().
tbody();
StringBuilder tasksTableData = new StringBuilder("[\n");
for (Task task : app.getJob().getTasks().values()) {
if (type != null && task.getType() != type) {
continue;
}
String taskStateStr = $(TASK_STATE);
if (taskStateStr == null || taskStateStr.trim().equals("")) {
taskStateStr = "ALL";
}
if (!taskStateStr.equalsIgnoreCase("ALL"))
{
try {
// get stateUI enum
MRApps.TaskStateUI stateUI = MRApps.taskState(taskStateStr);
if (!stateUI.correspondsTo(task.getState()))
{
continue;
}
} catch (IllegalArgumentException e) {
continue; // not supported state, ignore
}
}
TaskInfo info = new TaskInfo(task);
String tid = info.getId();
String pct = percent(info.getProgress() / 100);
tasksTableData.append("[\"<a href='").append(url("task", tid))
.append("'>").append(tid).append("</a>\",\"")
//Progress bar
.append("<br title='").append(pct)
.append("'> <div class='").append(C_PROGRESSBAR).append("' title='")
.append(join(pct, '%')).append("'> ").append("<div class='")
.append(C_PROGRESSBAR_VALUE).append("' style='")
.append(join("width:", pct, '%')).append("'> </div> </div>\",\"")
.append(info.getStatus()).append("\",\"")
.append(info.getState()).append("\",\"")
.append(info.getStartTime()).append("\",\"")
.append(info.getFinishTime()).append("\",\"")
.append(info.getElapsedTime()).append("\"],\n");
}
//Remove the last comma and close off the array of arrays
if(tasksTableData.charAt(tasksTableData.length() - 2) == ',') {
tasksTableData.delete(tasksTableData.length()-2, tasksTableData.length()-1);
}
tasksTableData.append("]");
html.script().$type("text/javascript").
_("var tasksTableData=" + tasksTableData)._();
tbody._()._();
}
}