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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| package com.yammer.dropwizard | ||
|
|
||
| import collection.JavaConversions._ | ||
| import lifecycle.Managed | ||
| import com.sun.jersey.api.core.ResourceConfig._ | ||
| import com.codahale.logula.Logging | ||
| import com.yammer.metrics.core.HealthCheck | ||
| import javax.servlet.{Servlet, Filter} | ||
| import com.sun.jersey.core.reflection.MethodList | ||
| import javax.ws.rs.{Path, HttpMethod} | ||
| import org.eclipse.jetty.servlet.{ServletHolder, FilterHolder} | ||
|
|
||
| class Environment extends Logging { | ||
| private[dropwizard] var resources = Set.empty[Object] | ||
| private[dropwizard] var healthChecks = Set.empty[HealthCheck] | ||
| private[dropwizard] var providers = Set.empty[Object] | ||
| private[dropwizard] var managedObjects = IndexedSeq.empty[Managed] | ||
| private[dropwizard] var filters = Map.empty[String, FilterHolder] | ||
| private[dropwizard] var servlets = Map.empty[String, ServletHolder] | ||
|
|
||
| def addResource(resource: Object) { | ||
| if (!isRootResourceClass(resource.getClass)) { | ||
| throw new IllegalArgumentException(resource.getClass.getCanonicalName + | ||
| " is not a @Path-annotated resource class") | ||
| } | ||
|
|
||
| if (annotatedMethods(resource).isEmpty) { | ||
| throw new IllegalArgumentException(resource.getClass.getCanonicalName + | ||
| " has no @GET/@POST/etc-annotated methods") | ||
| } | ||
|
|
||
| resources += resource | ||
| } | ||
|
|
||
| def addProvider(provider: Object) { | ||
| if (!isProviderClass(provider.getClass)) { | ||
| throw new IllegalArgumentException(provider.getClass.getCanonicalName + | ||
| " is not a @Provider-annotated provider class") | ||
| } | ||
| providers += provider | ||
| } | ||
|
|
||
| def addHealthCheck(healthCheck: HealthCheck) { | ||
| healthChecks += healthCheck | ||
| } | ||
|
|
||
| def manage(managedObject: Managed) { | ||
| managedObjects ++= IndexedSeq(managedObject) | ||
| } | ||
|
|
||
| def addFilter[T <: Filter](filter: T, | ||
| pathSpec: String, | ||
| params: Map[String, String] = Map.empty) { | ||
| val holder = new FilterHolder(filter) | ||
| holder.setInitParameters(params) | ||
| filters += pathSpec -> holder | ||
| } | ||
|
|
||
| def addFilterClass[T <: Filter](klass: Class[T], | ||
| pathSpec: String, | ||
| params: Map[String, String] = Map.empty) { | ||
| val holder = new FilterHolder(klass) | ||
| holder.setInitParameters(params) | ||
| filters += pathSpec -> holder | ||
| } | ||
|
|
||
| def addServlet[T <: Servlet](servlet: T, | ||
| pathSpec: String, | ||
| params: Map[String, String] = Map.empty, | ||
| initOrder: Int = 0) { | ||
| val holder = new ServletHolder(servlet) | ||
| holder.setInitParameters(params) | ||
| holder.setInitOrder(initOrder) | ||
| servlets += pathSpec -> holder | ||
| } | ||
|
|
||
| def addServletClass[T <: Servlet](klass: Class[T], | ||
| pathSpec: String, | ||
| params: Map[String, String] = Map.empty, | ||
| initOrder: Int = 0) { | ||
| val holder = new ServletHolder(klass) | ||
| holder.setInitParameters(params) | ||
| holder.setInitOrder(initOrder) | ||
| servlets += pathSpec -> holder | ||
| } | ||
|
|
||
| private[dropwizard] def validate() { | ||
| def logResources() { | ||
| def httpMethods(resource: Object) = annotatedMethods(resource).map { | ||
| _.getMetaMethodAnnotations(classOf[HttpMethod]).map { _.value() } | ||
| }.flatten.toIndexedSeq.sorted | ||
|
|
||
| def paths(resource: Object) = | ||
| resource.getClass.getAnnotation(classOf[Path]).value() :: Nil | ||
|
|
||
| val out = new StringBuilder("\n\n") | ||
| for (resource <- resources; | ||
| path <- paths(resource); | ||
| method <- httpMethods(resource)) { | ||
| out.append(" %s %s (%s)\n".format(method, path, resource.getClass.getCanonicalName)) | ||
| } | ||
| log.info(out.toString()) | ||
| } | ||
|
|
||
| log.debug("resources = %s", resources.mkString("{", ", ", "}")) | ||
| log.debug("providers = %s", providers.mkString("{", ", ", "}")) | ||
| log.debug("health checks = %s", healthChecks.mkString("{", ", ", "}")) | ||
| log.debug("managed objects = %s", managedObjects.mkString("{", ", ", "}")) | ||
|
|
||
| logResources() | ||
|
|
||
| if (healthChecks.isEmpty) { | ||
| log.warn(""" | ||
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | ||
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | ||
| ! THIS SERVICE HAS NO HEALTHCHECKS. THIS MEANS YOU WILL NEVER KNOW IF IT ! | ||
| ! DIES IN PRODUCTION, WHICH MEANS YOU WILL NEVER KNOW IF YOU'RE LETTING ! | ||
| ! YOUR USERS DOWN. YOU SHOULD ADD A HEALTHCHECK FOR EACH DEPENDENCY OF ! | ||
| ! YOUR SERVICE WHICH FULLY (BUT LIGHTLY) TESTS YOUR SERVICE'S ABILITY TO ! | ||
| ! USE THAT SERVICE. THINK OF IT AS A CONTINUOUS INTEGRATION TEST. ! | ||
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | ||
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | ||
| """) | ||
| } | ||
| } | ||
|
|
||
| private def annotatedMethods(resource: Object) = | ||
| new MethodList(resource.getClass, true).hasMetaAnnotation(classOf[HttpMethod]) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| package com.yammer.dropwizard | ||
|
|
||
| import com.sun.jersey.api.core.DefaultResourceConfig | ||
| import com.codahale.logula.Logging | ||
| import providers.LoggingExceptionMapper | ||
| import com.codahale.jersey.inject.ScalaCollectionsQueryParamInjectableProvider | ||
| import com.codahale.jersey.providers.{JValueProvider, JsonCaseClassProvider} | ||
|
|
||
| class JerseyConfig(env: Environment) extends DefaultResourceConfig with Logging { | ||
| ( | ||
| Set( | ||
| new LoggingExceptionMapper, | ||
| new JsonCaseClassProvider, | ||
| new ScalaCollectionsQueryParamInjectableProvider, | ||
| new JValueProvider | ||
| ) ++ env.resources ++ env.providers | ||
| ).foreach(getSingletons.add) | ||
|
|
||
| override def validate() { | ||
| env.validate() | ||
| } | ||
| } |
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