昨日、このようなエントリを書きました。
ScalaとJAX-RSとコンストラクタインジェクションと
http://d.hatena.ne.jp/Kazuhira/20140916/1410890181
元ネタは、こちら。
Kotlin + JAX-RS
http://backpaper0.github.io/ghosts/kotlin-jaxrs.html#/9
http://backpaper0.github.io/ghosts/kotlin-jaxrs.html#/10
元ネタとなった資料では、@Contextなフィールドをvalにしてコンストラクタインジェクションしようとすると、失敗するという話でした。
これに対して、Scalaで単なるコンストラクタに引数を取る版と、さらにvalを付与する版の両方を作成して動かしたのですが、普通に両方とも動作しました。が、単にコンストラクタ引数にする方では、デコンパイルした結果、引数にもフィールドにも@Contextが付いていました。
public class HelloResource { @Context private final UriInfo uriInfo; public HelloResource(@Context UriInfo uriInfo) {}
でも、エラーにならなかったですね。話が合わないですね。
ちょっと気になったので、自分でも試してみました。Kotlinで。
build.gradle
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:0.8.11'
}
}
apply plugin: 'kotlin'
apply plugin: 'war'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'
archivesBaseName = 'javaee7-web'
repositories {
mavenCentral()
}
dependencies {
compile 'org.jetbrains.kotlin:kotlin-stdlib:0.8.11'
providedCompile 'javax:javaee-web-api:7.0'
}
src/main/kotlin/app/HelloApplication.kt
package app
import javax.ws.rs.ApplicationPath
import javax.ws.rs.core.Application
ApplicationPath("rest")
public class HelloApplication : Application()src/main/kotlin/app/HelloResource.kt
package app import javax.ws.rs.DefaultValue import javax.ws.rs.GET import javax.ws.rs.Path import javax.ws.rs.Produces import javax.ws.rs.QueryParam import javax.ws.rs.core.Context import javax.ws.rs.core.MediaType import javax.ws.rs.core.UriInfo Path("hello") public class HelloResource( Context val uriInfo : UriInfo ) { GET Produces(MediaType.TEXT_PLAIN) fun sayHello( QueryParam("name") DefaultValue("world") name: String ): String = "Hello, $name!" Path("path") GET Produces(MediaType.TEXT_PLAIN) fun getPath(): String? = uriInfo.getPath() }
WARを作成して
$ gradle --daemon war
まずは、WildFly 8.1.0.Finalにデプロイ。
$ cp build/libs/javaee7-web.war /path/to/wildfly-8.1.0.Final/standalone/deployments/
動作確認。
$ curl http://localhost:8080/javaee7-web/rest/hello?name=Kotlin Hello, Kotlin! $ curl http://localhost:8080/javaee7-web/rest/hello/path /hello/path
…やっぱり、普通に動きますね。
ということは…。
WildFlyはシャットダウンし、今度はGlassFish 4.1をダウンロードしてデプロイ。
$ glassfish4/bin/asadmin deploy /path/to/build/libs/javaee7-web.war
実行。
$ curl http://localhost:8080/javaee7-web/rest/hello?name=Kotlin <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>GlassFish Server Open Source Edition 4.1 - Error report</title><style type="text/css"><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - Internal Server Error</h1><hr/><p><b>type</b> Exception report</p><p><b>message</b>Internal Server Error</p><p><b>description</b>The server encountered an internal error that prevented it from fulfilling this request.</p><p><b>exception</b> <pre>javax.servlet.ServletException: A MultiException has 1 exceptions. They are: 1. java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type </pre></p><p><b>root cause</b> <pre>A MultiException has 1 exceptions. They are: 1. java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type </pre></p><p><b>root cause</b> <pre>java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type</pre></p><p><b>note</b> <u>The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1 logs.</u></p><hr/><h3>GlassFish Server Open Source Edition 4.1 </h3></body></html> $ curl http://localhost:8080/javaee7-web/rest/hello/path <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>GlassFish Server Open Source Edition 4.1 - Error report</title><style type="text/css"><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - Internal Server Error</h1><hr/><p><b>type</b> Exception report</p><p><b>message</b>Internal Server Error</p><p><b>description</b>The server encountered an internal error that prevented it from fulfilling this request.</p><p><b>exception</b> <pre>javax.servlet.ServletException: A MultiException has 1 exceptions. They are: 1. java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type </pre></p><p><b>root cause</b> <pre>A MultiException has 1 exceptions. They are: 1. java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type </pre></p><p><b>root cause</b> <pre>java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type</pre></p><p><b>note</b> <u>The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1 logs.</u></p><hr/><h3>GlassFish Server Open Source Edition 4.1 </h3></body></html>
エラーになった…。
ということは、元の資料はGlassFishでやってダメだったということなのでしょうね。
ちなみに、前回作成したScalaのコードも、valを付与しなかった場合は同様のエラーになりました。そしてKotlinで書いた方も、WildFlyにデプロイしたら動作しました。なんとまあ…。
GlassFishの挙動の方が正解なんでしょうかね？？
ちなみに、この時GlassFish側に出力されているスタックトレースはこんな感じです。
[2014-09-18T02:55:09.317+0900] [glassfish 4.1] [WARNING] [] [javax.enterprise.web] [tid: _ThreadID=30 _ThreadName=http-listener-1(2)] [timeMillis: 1410976509317] [levelValue: 900] [[ StandardWrapperValve[app.HelloApplication]: Servlet.service() for servlet app.HelloApplication threw exception java.lang.IllegalArgumentException: The field field(UriInfo uriInfo in app.HelloResource) may not be static, final or have an Annotation type at org.jvnet.hk2.internal.Utilities.findInitializerFields(Utilities.java:1443) at org.jvnet.hk2.internal.DefaultClassAnalyzer.getFields(DefaultClassAnalyzer.java:113) at org.glassfish.jersey.internal.inject.JerseyClassAnalyzer.getFields(JerseyClassAnalyzer.java:244) at org.jvnet.hk2.internal.Utilities.getInitFields(Utilities.java:257) at org.jvnet.hk2.internal.Utilities.justInject(Utilities.java:932) at org.jvnet.hk2.internal.ServiceLocatorImpl.inject(ServiceLocatorImpl.java:902) at org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:977) at org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:968) at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:173) at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185) at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:74) at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112) at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:115) at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:115) at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:115) at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:115) at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:94) at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:63) at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197) at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:263) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:267) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:297) at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:254) at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1028) at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:372) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545) at java.lang.Thread.run(Thread.java:745)
あんまり追う時間はないので、ここまでということで。
