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package spark.deploy.master.ui
import akka.dispatch.Await
import akka.pattern.ask
import akka.util.duration._
import javax.servlet.http.HttpServletRequest
import scala.xml.Node
import spark.deploy.{RequestMasterState, DeployWebUI, MasterState}
import spark.Utils
import spark.ui.UIUtils
import spark.deploy.master.{ApplicationInfo, WorkerInfo}
private[spark] class IndexPage(parent: MasterWebUI) {
val master = parent.master
implicit val timeout = parent.timeout
/** Index view listing applications and executors */
def render(request: HttpServletRequest): Seq[Node] = {
val stateFuture = (master ? RequestMasterState)(timeout).mapTo[MasterState]
val state = Await.result(stateFuture, 30 seconds)
val workerHeaders = Seq("Id", "Address", "State", "Cores", "Memory")
val workers = state.workers.sortBy(_.id)
val workerTable = UIUtils.listingTable(workerHeaders, workerRow, workers)
val appHeaders = Seq("ID", "Description", "Cores", "Memory per Node", "Submit Time", "User",
"State", "Duration")
val activeApps = state.activeApps.sortBy(_.startTime).reverse
val activeAppsTable = UIUtils.listingTable(appHeaders, appRow, activeApps)
val completedApps = state.completedApps.sortBy(_.endTime).reverse
val completedAppsTable = UIUtils.listingTable(appHeaders, appRow, completedApps)
val content =
<hr />
<div class="row">
<div class="span12">
<ul class="unstyled">
<li><strong>URL:</strong>{state.uri}</li>
<li><strong>Workers:</strong>{state.workers.size}</li>
<li><strong>Cores:</strong> {state.workers.map(_.cores).sum} Total,
{state.workers.map(_.coresUsed).sum} Used</li>
<li><strong>Memory:</strong>
{Utils.memoryMegabytesToString(state.workers.map(_.memory).sum)} Total,
{Utils.memoryMegabytesToString(state.workers.map(_.memoryUsed).sum)} Used</li>
<li><strong>Applications:</strong>
{state.activeApps.size} Running,
{state.completedApps.size} Completed </li>
</ul>
</div>
</div>
<div class="row">
<div class="span12">
<h3> Workers </h3>
<br/>
{workerTable}
</div>
</div>
<hr/>
<div class="row">
<div class="span12">
<h3> Running Applications </h3>
<br/>
{activeAppsTable}
</div>
</div>
<hr/>
<div class="row">
<div class="span12">
<h3> Completed Applications </h3>
<br/>
{completedAppsTable}
</div>
</div>;
UIUtils.basicSparkPage(content, "Spark Master: " + state.uri)
}
def workerRow(worker: WorkerInfo): Seq[Node] = {
<tr>
<td>
<a href={worker.webUiAddress}>{worker.id}</a>
</td>
<td>{worker.host}:{worker.port}</td>
<td>{worker.state}</td>
<td>{worker.cores} ({worker.coresUsed} Used)</td>
<td sorttable_customkey={"%s.%s".format(worker.memory, worker.memoryUsed)}>
{Utils.memoryMegabytesToString(worker.memory)}
({Utils.memoryMegabytesToString(worker.memoryUsed)} Used)
</td>
</tr>
}
def appRow(app: ApplicationInfo): Seq[Node] = {
<tr>
<td>
<a href={"app?appId=" + app.id}>{app.id}</a>
</td>
<td>{app.desc.name}</td>
<td>
{app.coresGranted}
</td>
<td sorttable_customkey={app.desc.memoryPerSlave.toString}>
{Utils.memoryMegabytesToString(app.desc.memoryPerSlave)}
</td>
<td>{DeployWebUI.formatDate(app.submitDate)}</td>
<td>{app.desc.user}</td>
<td>{app.state.toString}</td>
<td>{DeployWebUI.formatDuration(app.duration)}</td>
</tr>
}
}
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