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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.yahoo.config.model.test.MockRoot
import com.yahoo.config.{ConfigBuilder, ConfigInstance}
import com.yahoo.container.di.ConfigKeyT
import scala.collection.JavaConversions._
import scala.collection.JavaConverters._
import com.yahoo.vespa.config.ConfigKey
import com.yahoo.container.di.config.{SubscriberFactory, Subscriber}
import StandaloneSubscriberFactory._
/**
* @author tonytv
* @author gjoranv
*/
class StandaloneSubscriberFactory(root: MockRoot) extends SubscriberFactory {
class StandaloneSubscriber(configKeys: Set[ConfigKeyT]) extends Subscriber {
override def configChanged =
generation == 0
override def close() {}
override def config = {
def getConfig(key: ConfigKeyT) = {
val builderWithModelConfig = root.getConfig(newBuilderInstance(key), key.getConfigId)
require(builderWithModelConfig != null, "Invalid config id " + key.getConfigId )
(key.asInstanceOf[ConfigKey[ConfigInstance]], newConfigInstance(builderWithModelConfig))
}
(configKeys map getConfig).toMap.asJava
}
override def waitNextGeneration() = {
generation += 1
if (generation != 0) {
while (!Thread.interrupted())
Thread.sleep(10000)
}
generation
}
//if waitNextGeneration has not yet been called, -1 should be returned
var generation = -1L
}
override def getSubscriber(configKeys: java.util.Set[_ <: ConfigKey[_]]) =
new StandaloneSubscriber(configKeys.toSet.asInstanceOf[Set[ConfigKeyT]])
def reloadActiveSubscribers(generation: Long) {
throw new RuntimeException("unsupported")
}
}
object StandaloneSubscriberFactory {
private def newBuilderInstance(key: ConfigKeyT) =
builderClass(key).newInstance()
private def builderClass(key: ConfigKeyT) = {
val nestedClasses = key.getConfigClass.getClasses
nestedClasses.
filter {_.getName.equals(key.getConfigClass.getName + "$Builder")}.
head.
asInstanceOf[Class[ConfigInstance.Builder]]
}
private def newConfigInstance(builder: ConfigBuilder) =
configClass(builder).getConstructor(builder.getClass).newInstance(builder)
private def configClass(builder: ConfigBuilder) =
builder.getClass.getEnclosingClass.asInstanceOf[Class[ConfigInstance]]
}
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