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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.standalone
import com.google.inject.{Key, AbstractModule, Injector, Inject}
import com.yahoo.config.application.api.{DeployLogger, RuleConfigDeriver, FileRegistry, ApplicationPackage}
import com.yahoo.config.provision.Zone
import com.yahoo.jdisc.application.Application
import com.yahoo.container.jdisc.ConfiguredApplication
import java.io.{IOException, File}
import com.yahoo.config.model.test.MockRoot
import com.yahoo.config.model.application.provider._
import com.yahoo.vespa.defaults.Defaults
import com.yahoo.vespa.model.VespaModel
import com.yahoo.vespa.model.container.xml.{ConfigServerContainerModelBuilder, ManhattanContainerModelBuilder, ContainerModelBuilder}
import org.w3c.dom.Element
import com.yahoo.config.model.builder.xml.XmlHelper
import com.yahoo.vespa.model.container.Container
import com.yahoo.collections.CollectionUtil.first
import com.yahoo.vespa.model.builder.xml.dom.VespaDomBuilder
import com.yahoo.io.IOUtils
import com.yahoo.container.di.config.SubscriberFactory
import StandaloneContainerApplication._
import com.google.inject.name.Names
import scala.util.Try
import java.nio.file.{FileSystems, Path, Paths, Files}
import com.yahoo.config.model.{ConfigModelRepo, ApplicationConfigProducerRoot}
import scala.collection.JavaConversions._
import com.yahoo.text.XML
import com.yahoo.vespa.model.container.xml.ContainerModelBuilder.Networking
import java.lang.{ Boolean => JBoolean }
import Environment._
import com.yahoo.config.model.deploy.DeployState
/**
* @author tonytv
* @author gjoranv
*/
class StandaloneContainerApplication @Inject()(injector: Injector) extends Application {
ConfiguredApplication.ensureVespaLoggingInitialized()
val applicationPath: Path = injectedApplicationPath.getOrElse(yinstApplicationPath)
val distributedFiles = new LocalFileDb(applicationPath)
val configModelRepo = Try { injector.getInstance(Key.get(classOf[ConfigModelRepo], configModelRepoName))}.getOrElse(new ConfigModelRepo)
val networkingOption = Try {
injector.getInstance(Key.get(classOf[JBoolean], Names.named(disableNetworkingAnnotation)))
}.map {
case JBoolean.TRUE => Networking.disable
case JBoolean.FALSE => Networking.enable
}.getOrElse(Networking.enable)
val (modelRoot, container) = withTempDir(
preprocessedApplicationDir => createContainerModel(applicationPath, distributedFiles, preprocessedApplicationDir, networkingOption, configModelRepo))
val configuredApplication = createConfiguredApplication(container)
def createConfiguredApplication(container: Container): Application = {
val augmentedInjector = injector.createChildInjector(new AbstractModule {
def configure() {
bind(classOf[SubscriberFactory]).toInstance(new StandaloneSubscriberFactory(modelRoot))
}
})
System.setProperty("config.id", container.getConfigId) //TODO: DRY
augmentedInjector.getInstance(classOf[ConfiguredApplication])
}
def injectedApplicationPath = Try {
injector.getInstance(Key.get(classOf[Path], applicationPathName))
}.toOption
def yinstApplicationPath = path(yinstVariable(applicationLocationYinstVariable))
override def start() {
try {
com.yahoo.container.Container.get().setCustomFileAcquirer(distributedFiles)
configuredApplication.start()
}
catch {
case e: Exception => { com.yahoo.container.Container.resetInstance(); throw e; }
}
}
override def stop() {
configuredApplication.stop()
}
override def destroy() {
com.yahoo.container.Container.resetInstance()
configuredApplication.destroy()
}
}
object StandaloneContainerApplication {
val packageName = "standalone_jdisc_container"
val applicationLocationYinstVariable = s"$packageName.app_location"
val deploymentProfileYinstVariable = s"$packageName.deployment_profile"
val manhattanHttpPortYinstVariable = s"$packageName.manhattan_http_port"
val applicationPathName = Names.named(applicationLocationYinstVariable)
val disableNetworkingAnnotation = "JDisc.disableNetworking"
val configModelRepoName = Names.named("ConfigModelRepo")
val configDefinitionRepo = new StaticConfigDefinitionRepo()
val defaultTmpBaseDir = Defaults.getDefaults().underVespaHome("tmp")
val tmpDirName = "standalone_container"
private def withTempDir[T](f: File => T): T = {
val tmpDir = createTempDir()
try {
f(tmpDir)
} finally {
IOUtils.recursiveDeleteDir(tmpDir)
}
}
private def createTempDir(): File = {
def getBaseDir: Path = {
val tmpBaseDir =
if (new File(defaultTmpBaseDir).exists())
defaultTmpBaseDir
else
System.getProperty("java.io.tmpdir")
Paths.get(tmpBaseDir)
}
val basePath: Path = getBaseDir
val tmpDir = Files.createTempDirectory(basePath, tmpDirName)
tmpDir.toFile
}
private def validateApplication(applicationPackage: ApplicationPackage, logger: DeployLogger) = {
try {
applicationPackage.validateXML(logger)
} catch {
case e: IOException => throw new IllegalArgumentException(e)
}
}
def newContainerModelBuilder(networkingOption: Networking): ContainerModelBuilder = {
optionalYinstVariable(deploymentProfileYinstVariable) match {
case None => new ContainerModelBuilder(true, networkingOption)
case Some("manhattan") => new ManhattanContainerModelBuilder(manhattanHttpPort)
case Some("configserver") => new ConfigServerContainerModelBuilder(new CloudConfigYinstVariables)
case profileName => throw new RuntimeException(s"Invalid deployment profile '$profileName'")
}
}
def manhattanHttpPort: Int = {
val port = yinstVariable(manhattanHttpPortYinstVariable)
Try {
Integer.parseInt(port)
} filter( _ > 0) getOrElse {
throw new RuntimeException(s"$manhattanHttpPortYinstVariable is not a valid port: '$port'")
}
}
def createContainerModel(applicationPath: Path,
fileRegistry: FileRegistry,
preprocessedApplicationDir: File,
networkingOption: Networking,
configModelRepo: ConfigModelRepo = new ConfigModelRepo): (VespaModel, Container) = {
val logger = new BaseDeployLogger
val rawApplicationPackage = new FilesApplicationPackage.Builder(applicationPath.toFile).includeSourceFiles(true).preprocessedDir(preprocessedApplicationDir).build()
// TODO: Needed until we get rid of semantic rules
val applicationPackage = rawApplicationPackage.preprocess(Zone.defaultZone(), new RuleConfigDeriver {
override def derive(ruleBaseDir: String, outputDir: String): Unit = {}
}, logger)
validateApplication(applicationPackage, logger)
val deployState = new DeployState.Builder().
applicationPackage(applicationPackage).
fileRegistry(fileRegistry).
deployLogger(logger).
configDefinitionRepo(configDefinitionRepo).
build()
val root = VespaModel.createMutable(deployState)
val vespaRoot = new ApplicationConfigProducerRoot(root,
"vespa",
deployState.getDocumentModel,
deployState.getProperties.vespaVersion(),
deployState.getProperties.applicationId())
vespaRoot.setupAdmin(root.getAdmin) // TODO: Try to remove
val spec = containerRootElement(applicationPackage)
val containerModel = newContainerModelBuilder(networkingOption).build(deployState, configModelRepo, vespaRoot, spec)
containerModel.getCluster().prepare()
containerModel.initialize(configModelRepo)
val container = first(containerModel.getCluster().getContainers)
// Always disable rpc server for standalone container. This server will soon be removed anyway.
container.setRpcServerEnabled(false)
container.setHttpServerEnabled(networkingOption == Networking.enable)
initializeContainer(container, spec)
root.freezeModelTopology()
(root, container)
}
def initializeContainer(container: Container, spec: Element) {
val host = container.getRoot.getHostSystem.getHost(Container.SINGLENODE_CONTAINER_SERVICESPEC)
container.setBasePort(VespaDomBuilder.getXmlWantedPort(spec))
container.setHostResource(host)
container.initService()
}
def getJDiscInServices(element: Element): Element = {
def nameAndId(elements: List[Element]): List[String] = {
elements map { e => s"${e.getNodeName} id='${e.getAttribute("id")}'" }
}
val jDiscElements = ContainerModelBuilder.configModelIds flatMap { name => XML.getChildren(element, name.getName) }
jDiscElements.toList match {
case List(e) => e
case Nil => throw new RuntimeException("No jdisc element found under services.")
case multipleElements: List[Element] => throw new RuntimeException("Found multiple JDisc elements: " + nameAndId(multipleElements).mkString(", "))
}
}
def containerRootElement(applicationPackage: ApplicationPackage) : Element = {
val element = XmlHelper.getDocument(applicationPackage.getServices).getDocumentElement
val nodeName = element.getNodeName
if (ContainerModelBuilder.configModelIds.map(_.getName).contains(nodeName)) element
else getJDiscInServices(element)
}
def path(s: String) = FileSystems.getDefault.getPath(s)
}
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