Files
odc-analyzer/app/modules/ConfigModule.scala
Šesták Vít 4b87ced31f Initial commit
2016-01-10 17:31:07 +01:00

100 lines
3.9 KiB
Scala

package modules
import java.io._
import java.net.URLEncoder
import java.nio.file.{Files, Path, Paths}
import akka.util.ClassLoaderObjectInputStream
import com.ysoft.odc._
import controllers.MissingGavExclusions
import play.api.cache.CacheApi
import play.api.inject.{Binding, Module}
import play.api.{Configuration, Environment, Logger}
import scala.concurrent.duration.Duration
import scala.reflect.ClassTag
import scala.util.{Failure, Success, Try}
/**
* This class is rather a temporary hack and should be replaced by something better.
*
* Issues:
* * Thread safety
* * fsync: https://stackoverflow.com/questions/4072878/i-o-concept-flush-vs-sync
* * probably not removing files that are not used for a long time
* @param path
*/
class FileCacheApi(path: Path) extends CacheApi{
private def cacheFile(name: String) = path.resolve("X-"+URLEncoder.encode(name, "utf-8"))
override def remove(key: String): Unit = Files.deleteIfExists(cacheFile(key))
private def serialize(value: Any, duration: Duration) = {
val out = new ByteArrayOutputStream()
import com.github.nscala_time.time.Imports._
new ObjectOutputStream(out).writeObject((value, if(duration.isFinite()) Some(DateTime.now.plus(duration.toMillis)) else None))
out.toByteArray
}
private def unserialize[T](data: Array[Byte]): Try[T] = {
val in = new ByteArrayInputStream(data)
import com.github.nscala_time.time.Imports._
try{
new ClassLoaderObjectInputStream(this.getClass.getClassLoader, in).readObject() match {
case (value, None) => Success(value.asInstanceOf[T])
case (value, Some(exp: DateTime)) if exp < DateTime.now => Success(value.asInstanceOf[T])
case _ => Failure(new RuntimeException("cache expired"))
}
}catch{
case e: ObjectStreamException => Failure(e)
}
}
override def set(key: String, value: Any, expiration: Duration): Unit = {
Files.write(cacheFile(key), serialize(value, expiration))
}
override def get[T: ClassTag](key: String): Option[T] = {
val f = cacheFile(key)
if(Files.exists(f)){
val res = unserialize[T](Files.readAllBytes(f))
res match {
case Failure(e) =>
Logger.warn("not using cache for following key, removing that: "+key, e)
remove(key)
case Success(_) => // nothing to do
}
res.toOption
}else{
None
}
}
override def getOrElse[A: ClassTag](key: String, expiration: Duration)(orElse: => A): A = get(key).getOrElse{
val v = orElse
set(key, v, expiration)
v
}
}
class ConfigModule extends Module {
override def bindings(environment: Environment, configuration: Configuration): Seq[Binding[_]] = Seq(
bind[String].qualifiedWith("bamboo-server-url").toInstance(configuration.getString("yssdc.bamboo.url").getOrElse(sys.error("Key yssdc.bamboo.url is not set"))),
configuration.getString("yssdc.reports.provider") match{
case Some("bamboo") => bind[Downloader].to[BambooDownloader]
// not ready yet: case Some("files") => bind[Downloader].to[LocalFilesDownloader]
case other => sys.error(s"unknown provider: $other")
},
bind[MissingGavExclusions].qualifiedWith("missing-GAV-exclusions").toInstance(MissingGavExclusions(
configuration.getStringSeq("yssdc.exclusions.missingGAV.bySha1").getOrElse(Seq()).toSet.map(Exclusion))
)
) ++
configuration.getString("play.cache.path").map(cachePath => bind[CacheApi].toInstance(new FileCacheApi(Paths.get(cachePath)))) ++
configuration.getString("yssdc.reports.bamboo.sessionId").map{s => bind[BambooAuthentication].toInstance(new SessionIdBambooAuthentication(s))} ++
configuration.getString("yssdc.reports.bamboo.user").map{u => bind[BambooAuthentication].toInstance(new CredentialsBambooAuthentication(u, configuration.getString("yssdc.reports.bamboo.password").get))} ++
configuration.getString("yssdc.reports.path").map{s => bind[String].qualifiedWith("reports-path").toInstance(s)}
}