initial commit

.drone.yml

@@ -0,0 +1,39 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: test
+    image: openjdk:8-jdk
+    commands:
+      - echo "test"
+      - ./gradlew build
+
+  - name: build
+    image: docker:stable-dind
+    volumes:
+      - name: dockersock
+        path: /var/run
+    environment:
+      DOCKER_USERNAME:
+        from_secret: DOCKER_USERNAME
+      DOCKER_PASSWORD:
+        from_secret: DOCKER_PASSWORD
+    commands:
+      - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin registry.kmlabz.com
+      - docker build -t="registry.kmlabz.com/$DOCKER_USERNAME/$DRONE_REPO_NAME" .
+      - docker build -t="registry.kmlabz.com/$DOCKER_USERNAME/$DRONE_REPO_NAME:$DRONE_BUILD_NUMBER" .
+      - docker push "registry.kmlabz.com/$DOCKER_USERNAME/$DRONE_REPO_NAME"
+      - docker push "registry.kmlabz.com/$DOCKER_USERNAME/$DRONE_REPO_NAME:$DRONE_BUILD_NUMBER"
+
+services:
+  - name: docker
+    image: docker:stable-dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
+
+volumes:
+  - name: dockersock
+    temp: {}

.gitignore

@@ -0,0 +1,7 @@
+/.gradle
+/.idea
+/out
+/build
+*.iml
+*.ipr
+*.iws

Dockerfile

@@ -0,0 +1,14 @@
+FROM openjdk:8-jre-alpine
+
+ENV APPLICATION_USER ktor
+RUN adduser -D -g '' $APPLICATION_USER
+
+RUN mkdir /app
+RUN chown -R $APPLICATION_USER /app
+
+USER $APPLICATION_USER
+
+COPY ./build/libs/my-application.jar /app/my-application.jar
+WORKDIR /app
+
+CMD ["java", "-server", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-XX:InitialRAMFraction=2", "-XX:MinRAMFraction=2", "-XX:MaxRAMFraction=2", "-XX:+UseG1GC", "-XX:MaxGCPauseMillis=100", "-XX:+UseStringDeduplication", "-jar", "my-application.jar"]

api.http

@@ -0,0 +1,28 @@
+# Output Service - RDB
+# This is the feature extraction interface of the Birbnetes system.
+
+###
+
+# Get all negative decision objects
+GET {{host}}/output/filter/negative
+
+###
+
+# Get positive decision objects
+GET {{host}}/output/filter/positive
+
+###
+
+# Get decision before a date
+GET {{host}}/output/after/{{param_dateAfter}}
+
+###
+
+# Get decision before a date
+GET {{host}}/output/before/{{param_dateBefore}}
+
+###
+
+# Get decision by ID
+GET {{host}}/output/{{param_tagID}}
+

api.yaml

@@ -0,0 +1,143 @@
+swagger: "2.0"
+info:
+  description: "This is the feature extraction interface of the Birbnetes system."
+  version: "1.0.0"
+  title: "Output Service - RDB"
+  contact:
+    email: "tormakristof@tormakristof.eu"
+  license:
+    name: "Apache 2.0"
+    url: "http://www.apache.org/licenses/LICENSE-2.0.html"
+host: "dev.k8s.tcloud.enginner"
+basePath: "/api/extractor/rdb/v1"
+tags:
+- name: "output"
+  description: "Output Service - RDB interaction"
+schemes:
+- "https"
+- "http"
+paths:
+  /output/filter/negative:
+    get:
+      summary: Get all negative decision objects
+      operationId: getallnegative
+      tags:
+        - output
+      responses:
+        "200":
+          description: Array of decision objects
+          schema:
+            $ref: '#/definitions/OutputObjects'
+        "404":
+          description: No object matching filter
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+  /output/filter/positive:
+    get:
+      summary: Get positive decision objects
+      operationId: getallpositive
+      tags:
+        - output
+      responses:
+        "200":
+          description: Array of decision objects
+          schema:
+            $ref: '#/definitions/OutputObjects'
+        "404":
+          description: No object matching filter
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+  /output/after/{dateAfter}:
+    get:
+      summary: Get decision before a date
+      operationId: getallafter
+      tags:
+        - output
+      parameters:
+        - name: dateAfter
+          in: path
+          description: Date of filter
+          required: true
+          type: string
+          format: date
+      responses:
+        "200":
+          description: Array of decision objects
+          schema:
+            $ref: '#/definitions/OutputObjects'
+        "404":
+          description: No object matching filter
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+  /output/before/{dateBefore}:
+    get:
+      summary: Get decision before a date
+      operationId: getallbefore
+      tags:
+        - output
+      parameters:
+        - name: dateBefore
+          in: path
+          description: Date of filter
+          required: true
+          type: string
+          format: date
+      responses:
+        "200":
+          description: Array of decision objects
+          schema:
+            $ref: '#/definitions/OutputObjects'
+        "404":
+          description: NO objects matching filter
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+  /output/{tagID}:
+    get:
+      summary: Get decision by ID
+      operationId: getDecision
+      tags:
+        - output
+      parameters:
+        - name: tagID
+          in: path
+          description: ID of wave file
+          required: true
+          type: integer
+          format: int32
+      responses:
+        "200":
+          description: Decision object
+          schema:
+            $ref: '#/definitions/OutputObject'
+        "404":
+          description: Tag not found
+          schema:
+            $ref: '#/definitions/ApiResponse'
+
+definitions:
+  OutputObjects:
+    type: array
+    items:
+      $ref: '#/definitions/OutputObject'
+  OutputObject:
+    type: "object"
+    properties:
+      tag:
+        type: "string"
+      decison:
+        type: "boolean"
+      date:
+        type: "string"
+        format: "date"
+  ApiResponse:
+    type: "object"
+    properties:
+      status:
+        type: "string"
+      message:
+        type: "string" 
+

build.gradle

@@ -0,0 +1,56 @@
+buildscript {
+    repositories {
+        jcenter()
+        maven { url "https://plugins.gradle.org/m2/" }
+    }
+    
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "com.github.jengelman.gradle.plugins:shadow:5.2.0"
+    }
+}
+
+apply plugin: 'kotlin'
+apply plugin: "com.github.johnrengelman.shadow"
+apply plugin: 'application'
+
+group 'com.kmalbz'
+version '0.0.1'
+mainClassName = "io.ktor.server.netty.EngineMain"
+
+sourceSets {
+    main.kotlin.srcDirs = main.java.srcDirs = ['src']
+    test.kotlin.srcDirs = test.java.srcDirs = ['test']
+    main.resources.srcDirs = ['resources']
+    test.resources.srcDirs = ['testresources']
+}
+
+repositories {
+    mavenLocal()
+    jcenter()
+    maven { url 'https://kotlin.bintray.com/ktor' }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "io.ktor:ktor-server-netty:$ktor_version"
+    implementation "ch.qos.logback:logback-classic:$logback_version"
+    implementation "io.ktor:ktor-server-core:$ktor_version"
+    implementation "io.ktor:ktor-gson:$ktor_version"
+    implementation "io.ktor:ktor-server-host-common:$ktor_version"
+    implementation "io.ktor:ktor-client-core:$ktor_version"
+    implementation "io.ktor:ktor-client-core-jvm:$ktor_version"
+    implementation "io.ktor:ktor-client-apache:$ktor_version"
+    implementation "io.ktor:ktor-jackson:$ktor_version"
+    implementation "io.ktor:ktor-auth:$ktor_version"
+    testImplementation "io.ktor:ktor-server-tests:$ktor_version"
+}
+
+kotlin.experimental.coroutines = 'enable'
+
+
+shadowJar {
+    baseName = 'output-service-rdb'
+    classifier = null
+    version = null
+}

gradle.properties

@@ -0,0 +1,4 @@
+ktor_version=1.3.2
+kotlin.code.style=official
+kotlin_version=1.3.70
+logback_version=1.2.1

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Sat Apr 04 18:02:20 CEST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

http-client.env.json

@@ -0,0 +1,8 @@
+{
+    "localhost": {
+        "host": "http://127.0.0.1:8080",
+        "param_dateAfter": "dateAfter",
+        "param_dateBefore": "dateBefore",
+        "param_tagID": "tagID"
+    }
+}

resources/application.conf

@@ -0,0 +1,9 @@
+ktor {
+    deployment {
+        port = 8080
+        port = ${?PORT}
+    }
+    application {
+        modules = [ com.kmalbz.ApplicationKt.module ]
+    }
+}

resources/logback.xml

@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="trace">
+        <appender-ref ref="STDOUT"/>
+    </root>
+    <logger name="org.eclipse.jetty" level="INFO"/>
+    <logger name="io.netty" level="INFO"/>
+</configuration>

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = "output-sevice-rdb"

src/Application.kt

@@ -0,0 +1,73 @@
+package com.kmalbz
+
+import io.ktor.application.*
+import io.ktor.response.*
+import io.ktor.request.*
+import io.ktor.routing.*
+import io.ktor.http.*
+import io.ktor.gson.*
+import io.ktor.features.*
+import io.ktor.client.*
+import io.ktor.client.engine.apache.*
+import com.fasterxml.jackson.databind.*
+import io.ktor.jackson.*
+import io.ktor.auth.*
+import kotlin.reflect.*
+import java.util.*
+import io.ktor.swagger.experimental.*
+
+fun main(args: Array<String>): Unit = io.ktor.server.netty.EngineMain.main(args)
+
+@Suppress("unused") // Referenced in application.conf
+@kotlin.jvm.JvmOverloads
+fun Application.module(testing: Boolean = false) {
+    install(ContentNegotiation) {
+        gson {
+        }
+
+        jackson {
+            enable(SerializationFeature.INDENT_OUTPUT)
+        }
+    }
+
+    val client = HttpClient(Apache) {
+    }
+
+    install(Authentication) {
+    }
+
+    routing {
+        get("/") {
+            call.respondText("HELLO WORLD!", contentType = ContentType.Text.Plain)
+        }
+
+        get("/json/gson") {
+            call.respond(mapOf("hello" to "world"))
+        }
+
+        install(StatusPages) {
+            exception<AuthenticationException> { cause ->
+                call.respond(HttpStatusCode.Unauthorized)
+            }
+            exception<AuthorizationException> { cause ->
+                call.respond(HttpStatusCode.Forbidden)
+            }
+
+            exception<HttpException> {  cause ->
+                call.respond(cause.code, cause.description)
+            }
+        }
+
+        get("/json/jackson") {
+            call.respond(mapOf("hello" to "world"))
+        }
+
+        OutputServiceRDBServer().apply {
+            registerOutput()
+        }
+    }
+}
+
+class AuthenticationException : RuntimeException()
+class AuthorizationException : RuntimeException()
+

src/OutputServiceRDB.kt

@@ -0,0 +1,17 @@
+package com.kmalbz
+
+import java.util.*
+import io.ktor.http.*
+import io.ktor.request.*
+import io.ktor.swagger.experimental.*
+
+data class OutputObject(
+    val tag: String,
+    val decison: Boolean,
+    val date: Date
+)
+
+data class ApiResponse(
+    val status: String,
+    val message: String
+)

src/OutputServiceRDBClient.kt

@@ -0,0 +1,75 @@
+package com.kmalbz
+
+import io.ktor.client.*
+import io.ktor.client.request.*
+
+/**
+ * Output Service - RDB Client
+ * 
+ * This is the feature extraction interface of the Birbnetes system.
+ */
+open class OutputServiceRDBClient(val endpoint: String, val client: HttpClient = HttpClient()) {
+    /**
+     * Get all negative decision objects
+     * 
+     * @return Array of decision objects
+     */
+    suspend fun getallnegative(
+    ): List<OutputObject> {
+        return client.get<List<OutputObject>>("$endpoint/output/filter/negative") {
+        }
+    }
+
+    /**
+     * Get positive decision objects
+     * 
+     * @return Array of decision objects
+     */
+    suspend fun getallpositive(
+    ): List<OutputObject> {
+        return client.get<List<OutputObject>>("$endpoint/output/filter/positive") {
+        }
+    }
+
+    /**
+     * Get decision before a date
+     * 
+     * @param dateAfter Date of filter
+     * 
+     * @return Array of decision objects
+     */
+    suspend fun getallafter(
+        dateAfter: Date // PATH
+    ): List<OutputObject> {
+        return client.get<List<OutputObject>>("$endpoint/output/after/$dateAfter") {
+        }
+    }
+
+    /**
+     * Get decision before a date
+     * 
+     * @param dateBefore Date of filter
+     * 
+     * @return Array of decision objects
+     */
+    suspend fun getallbefore(
+        dateBefore: Date // PATH
+    ): List<OutputObject> {
+        return client.get<List<OutputObject>>("$endpoint/output/before/$dateBefore") {
+        }
+    }
+
+    /**
+     * Get decision by ID
+     * 
+     * @param tagID ID of wave file
+     * 
+     * @return Decision object
+     */
+    suspend fun getDecision(
+        tagID: Int // PATH
+    ): OutputObject {
+        return client.get<OutputObject>("$endpoint/output/$tagID") {
+        }
+    }
+}

src/OutputServiceRDBServer.kt

@@ -0,0 +1,61 @@
+package com.kmalbz
+
+import io.ktor.application.*
+import io.ktor.response.*
+import io.ktor.routing.*
+import java.util.*
+import io.ktor.swagger.experimental.*
+import io.ktor.auth.*
+import io.ktor.http.*
+
+/**
+ * Output Service - RDB
+ * 
+ * This is the output interface of the Birbnetes system.
+ */
+class OutputServiceRDBServer() {
+    /**
+     * output
+     */
+    fun Routing.registerOutput() {
+        get("/output/filter/negative") {
+            if (false) httpException(HttpStatusCode.NotFound)
+
+            call.respond(listOf())
+        }
+
+        get("/output/filter/positive") {
+            if (false) httpException(HttpStatusCode.NotFound)
+
+            call.respond(listOf())
+        }
+
+        get("/output/after/{dateAfter}") {
+            val dateAfter = call.getPath<Date>("dateAfter") 
+
+            if (false) httpException(HttpStatusCode.NotFound)
+
+            call.respond(listOf())
+        }
+
+        get("/output/before/{dateBefore}") {
+            val dateBefore = call.getPath<Date>("dateBefore") 
+
+            if (false) httpException(HttpStatusCode.NotFound)
+
+            call.respond(listOf())
+        }
+
+        get("/output/{tagID}") {
+            val tagID = call.getPath<Int>("tagID") 
+
+            if (false) httpException(HttpStatusCode.NotFound)
+
+            call.respond(OutputObject(
+                tag = "tag",
+                decison = false,
+                date = Date()
+            ))
+        }
+    }
+}

src/io/ktor/swagger/experimental/SwaggerUtils.kt

@@ -0,0 +1,395 @@
+package io.ktor.swagger.experimental
+
+import com.fasterxml.jackson.module.kotlin.*
+import kotlin.coroutines.*
+import kotlin.coroutines.intrinsics.*
+import kotlinx.coroutines.*
+import io.ktor.application.*
+import io.ktor.auth.authenticate
+import io.ktor.client.*
+import io.ktor.client.call.*
+import io.ktor.client.request.*
+import io.ktor.client.response.*
+import io.ktor.content.*
+import io.ktor.http.*
+import io.ktor.request.*
+import io.ktor.response.*
+import io.ktor.routing.*
+import io.ktor.util.*
+import java.lang.reflect.*
+import java.lang.reflect.Type
+
+class HttpException(val code: HttpStatusCode, val description: String = code.description) : RuntimeException(description)
+
+fun httpException(code: HttpStatusCode, message: String = code.description): Nothing = throw HttpException(code, message)
+fun httpException(code: Int, message: String = "Error $code"): Nothing = throw HttpException(HttpStatusCode(code, message))
+@Suppress("unused")
+inline fun <T> T.verifyParam(name: String, callback: (T) -> Boolean): T {
+    if (!callback(this)) throw IllegalArgumentException("$name"); return this
+}
+
+inline fun <T> T.checkRequest(cond: Boolean, callback: () -> String) {
+    if (!cond) httpException(HttpStatusCode.BadRequest, callback())
+}
+
+interface SwaggerBaseApi {
+}
+
+interface SwaggerBaseServer {
+}
+
+class ApplicationCallContext(val call: ApplicationCall) : CoroutineContext.Element {
+    object KEY : CoroutineContext.Key<ApplicationCallContext>
+
+    override val key: CoroutineContext.Key<*> = KEY
+}
+
+@Suppress("unused")
+suspend fun SwaggerBaseServer.call(): ApplicationCall {
+    return coroutineContext[ApplicationCallContext.KEY]?.call ?: error("ApplicationCall not available")
+}
+
+annotation class Method(val method: String)
+annotation class Body(val name: String)
+annotation class Header(val name: String)
+annotation class Query(val name: String)
+annotation class Path(val name: String) // Reused
+annotation class FormData(val name: String)
+annotation class Auth(vararg val auths: String)
+
+//interface FeatureClass
+//annotation class Feature(val clazz: KClass<out FeatureClass>)
+
+inline fun <reified T : SwaggerBaseApi> createClient(client: HttpClient, rootUrl: String): T =
+        createClient(T::class.java, client, rootUrl)
+
+fun <T : SwaggerBaseApi> createClient(clazz: Class<T>, client: HttpClient, rootUrl: String): T {
+    val rootUrlTrim = rootUrl.trimEnd('/')
+    val apiClass = ApiClass.parse(clazz)
+    var authContext = LinkedHashMap<String, String>()
+
+    return Proxy.newProxyInstance(clazz.classLoader, arrayOf(clazz)) { proxy, method, args ->
+        val info = apiClass.getInfo(method) ?: error("Can't find method $method")
+        val rparams = info.params.zip(args.slice(0 until info.params.size)).map { ApiClass.ApiParamInfoValue<Any?>(it.first as ApiClass.ApiParamInfo<Any?>, it.second) }.associateBy { it.name }
+
+        //val params = method.parameters
+        val cont = args.lastOrNull() as? Continuation<Any>?
+                ?: throw RuntimeException("Just implemented suspend functions")
+
+        val continuationReturnType = method.genericParameterTypes.firstOrNull()?.extractFirstGenericType()
+
+        val realReturnType = continuationReturnType ?: method.returnType
+
+        val pathPattern = info.path
+
+        val pathReplaced = pathPattern.replace { "${rparams[it]?.value}" }
+
+        kotlinx.coroutines.GlobalScope.apply {
+        launch {
+            try {
+                val fullUrl = "$rootUrlTrim/$pathReplaced"
+                val res = client.call(fullUrl) {
+                    this.method = HttpMethod(info.httpMethod)
+                    val body = linkedMapOf<String, Any?>()
+                    val formData = linkedMapOf<String, Any?>()
+                    for (param in rparams.values) {
+                        when (param.source) {
+                            Source.QUERY -> parameter(param.name, "${param.value}")
+                            Source.HEADER -> header(param.name, "${param.value}")
+                            Source.BODY -> body[param.name] = param.value
+                            Source.FORM_DATA -> formData[param.name] = param.value
+                        }
+                    }
+                    if (body.isNotEmpty()) {
+                        this.contentType(io.ktor.http.ContentType.Application.Json)
+                        this.body = ByteArrayContent(Json.stringify(body).toByteArray(Charsets.UTF_8))
+                    }
+                    if (formData.isNotEmpty()) {
+                        this.contentType(io.ktor.http.ContentType.Application.FormUrlEncoded)
+                        this.body = ByteArrayContent(formData.map { it.key to it.value.toString() }.formUrlEncode().toByteArray(Charsets.UTF_8))
+                    }
+                }
+                if (res.response.status.value < 400) {
+                    cont.resume(Json.parse(res.response.readText(), realReturnType))
+                } else {
+                    throw HttpExceptionWithContent(res.response.status, res.response.readText())
+                }
+            } catch (e: Throwable) {
+                cont.resumeWithException(e)
+            }
+        }
+        }
+        COROUTINE_SUSPENDED
+    } as T
+}
+
+class HttpExceptionWithContent(val code: HttpStatusCode, val content: String) :
+        RuntimeException("HTTP ERROR $code : $content")
+
+fun Routing.registerRoutes(server: SwaggerBaseServer) {
+    val clazz = ApiClass.parse(server::class.java)
+
+    for (method in clazz.methods) {
+        authenticateIfNotEmpty(method.auths) {
+            route(method.path.pathPattern, HttpMethod(method.httpMethod)) {
+                handle {
+                    val args = arrayListOf<Any?>()
+                    for (param in method.params) {
+                        args += param.get(call)
+                    }
+                    withContext(ApplicationCallContext(call)) {
+                        val result = method.method.invokeSuspend(server, args)
+                        call.respondText(Json.stringify(result ?: Any()), ContentType.Application.Json)
+                    }
+                }
+            }
+        }
+    }
+}
+
+enum class Source {
+    BODY, QUERY, FORM_DATA, HEADER, PATH
+}
+
+fun Route.authenticateIfNotEmpty(configurations: List<String>, optional: Boolean = false, build: Route.() -> Unit): Route {
+    return if (configurations.isEmpty()) {
+        build()
+        this
+    } else {
+        authenticate(*configurations.toTypedArray(), optional = optional, build = build)
+    }
+}
+
+
+class ApiClass(val clazz: Class<*>, val methods: List<ApiMethodInfo>) {
+    val methodsBySignature = methods.associateBy { it.methodSignature }
+
+    fun getInfo(method: java.lang.reflect.Method) = methodsBySignature[method.signature]
+
+    companion object {
+        fun parse(clazz: Class<*>): ApiClass {
+            val imethods = arrayListOf<ApiMethodInfo>()
+            for (method in clazz.methods) {
+                val path = method.getAnnotationInAncestors(Path::class.java)?.name
+                val httpMethod = method.getAnnotationInAncestors(Method::class.java)?.method ?: "GET"
+                //println("METHOD: $method, $path")
+                if (path != null) {
+                    val params = arrayListOf<ApiParamInfo<*>>()
+                    for ((ptype, annotations) in method.parameterTypes.zip(method.parameterAnnotationsInAncestors)) {
+                        // Skip the continuation last argument!
+                        if (ptype.isAssignableFrom(Continuation::class.java)) continue
+
+                        val body = annotations.filterIsInstance<Body>().firstOrNull()?.name
+                        val query = annotations.filterIsInstance<Query>().firstOrNull()?.name
+                        val formData = annotations.filterIsInstance<FormData>().firstOrNull()?.name
+                        val header = annotations.filterIsInstance<Header>().firstOrNull()?.name
+                        val ppath = annotations.filterIsInstance<Path>().firstOrNull()?.name
+
+                        val source = when {
+                            body != null -> Source.BODY
+                            query != null -> Source.QUERY
+                            formData != null -> Source.FORM_DATA
+                            header != null -> Source.HEADER
+                            ppath != null -> Source.PATH
+                            else -> Source.QUERY
+                        }
+                        val rname = body ?: query ?: formData ?: header ?: ppath ?: "unknown"
+
+                        //println("   - $ptype, ${annotations.toList()}")
+
+                        params += ApiParamInfo(source, rname, ptype)
+                    }
+
+                    //println("METHOD: $instance, $method, $httpMethod, $path")
+                    //for (param in params) println("  - $param")
+
+                    val auths = method.getAnnotationInAncestors(Auth::class.java)?.auths?.toList() ?: listOf()
+
+                    imethods += ApiMethodInfo(method, PathPattern(path.trim('/')), httpMethod, auths, params)
+                }
+            }
+            return ApiClass(clazz, imethods)
+        }
+    }
+
+    class ApiMethodInfo(val method: java.lang.reflect.Method, val path: PathPattern, val httpMethod: String, val auths: List<String>, val params: List<ApiParamInfo<*>>) {
+        val methodSignature = method.signature
+    }
+
+    data class ApiParamInfo<T>(val source: Source, val name: String, val type: Class<T>) {
+        suspend fun get(call: ApplicationCall): T {
+            return call.getTyped(source, name, type)
+        }
+    }
+
+    data class ApiParamInfoValue<T>(val info: ApiParamInfo<T>, val value: T) {
+        val source get() = info.source
+        val type get() = info.type
+        val name get() = info.name
+    }
+
+    class PathPattern(val pathPattern: String) {
+        companion object {
+            val PARAM_REGEX = Regex("\\{(\\w*)\\}")
+        }
+
+        val pathNames by lazy { PARAM_REGEX.findAll(pathPattern).map { it.groupValues[1] }.toList() }
+        val pathRegex by lazy { Regex(replace { "(\\w+)" }) }
+
+        fun replace(replacer: (name: String) -> String): String {
+            return pathPattern.replace(PARAM_REGEX) { mr -> replacer(mr.groupValues[1]) }
+        }
+
+        fun extract(path: String): List<String> {
+            return pathRegex.find(path)?.groupValues?.drop(1) ?: listOf()
+        }
+    }
+}
+
+data class MethodSignature(val name: String, val types: List<Class<*>>)
+
+val java.lang.reflect.Method.signature get() = MethodSignature(name, parameterTypes.toList())
+
+object Json {
+    @PublishedApi
+    internal val objectMapper = jacksonObjectMapper()
+
+    fun <T> convert(value: Any?, clazz: Class<T>): T = objectMapper.convertValue(value, clazz)
+    fun <T> parse(str: String, clazz: Class<T>): T = objectMapper.readValue(str, clazz)
+    fun <T> stringify(value: T): String = objectMapper.writeValueAsString(value)
+}
+
+//inline fun <reified T> ApplicationCall.getTyped(source: String, name: String): T =
+//        objectMapper.convertValue(getRaw(source, name), T::class.java)
+suspend fun <T> ApplicationCall.getTyped(source: Source, name: String, clazz: Class<T>): T {
+    return Json.convert(getRaw(source, name), clazz)
+}
+
+suspend fun <T> ApplicationCall.getTypedOrNull(source: Source, name: String, clazz: Class<T>): T? =
+    getRaw(source, name)?.let { Json.convert(it, clazz) }
+
+suspend fun ApplicationCall.getRaw(source: Source, name: String): Any? {
+    return when (source) {
+        Source.PATH -> this.parameters.get(name)
+        Source.QUERY -> this.request.queryParameters.get(name)
+        Source.BODY -> this.getCachedUntypedBody()[name]
+        Source.FORM_DATA -> TODO()
+        Source.HEADER -> this.request.header(name)
+    }
+}
+
+val CACHED_BODY_KEY = AttributeKey<Any>("CACHED_BODY_KEY")
+
+inline fun <T : Any> Attributes.computeIfAbsentInline(key: AttributeKey<T>, block: () -> T): T {
+    if (!this.contains(key)) {
+        this.put(key, block())
+    }
+    return this[key]
+}
+
+private suspend fun ApplicationCall.getCachedUntypedBody(): Map<String, Any?> {
+    return attributes.computeIfAbsentInline(CACHED_BODY_KEY) {
+        Json.parse(this@getCachedUntypedBody.receive(), HashMap::class.java)
+    } as Map<String, Any?>
+}
+
+///////////////////////////////////////////////////
+// Reflection Tools
+///////////////////////////////////////////////////
+
+val java.lang.Class<*>.allTypes: Set<Class<*>>
+    get() {
+        val types = LinkedHashSet<Class<*>>()
+        val explore = arrayListOf(this)
+        while (explore.isNotEmpty()) {
+            val item = explore.removeAt(explore.size - 1) ?: continue
+            types += item
+            explore += item.superclass
+            explore += item.interfaces
+        }
+        return types
+    }
+
+val java.lang.reflect.Method.parameterAnnotationsInAncestors: List<List<Annotation>>
+    get() {
+        val allMethods = this.declaringClass.allTypes.map {
+            try {
+                it.getDeclaredMethod(name, *parameterTypes) ?: null
+            } catch (e: NoSuchMethodException) {
+                null
+            }
+        }.filterNotNull()
+        val out = Array<ArrayList<Annotation>>(parameterTypes.size) { arrayListOf() }.toList()
+        for (method in allMethods) {
+            for ((index, annotations) in method.parameterAnnotations.withIndex()) {
+                out[index] += annotations
+            }
+        }
+        return out
+    }
+
+suspend fun java.lang.reflect.Method.invokeSuspend(obj: Any?, args: List<Any?>): Any? = suspendCoroutine { c ->
+    val method = this@invokeSuspend
+
+    val lastParam = method.parameterTypes.lastOrNull()
+    val margs = java.util.ArrayList(args)
+
+    if (lastParam != null && lastParam.isAssignableFrom(Continuation::class.java)) {
+        margs += c
+    }
+    try {
+        val result = method.invoke(obj, *margs.toTypedArray())
+        if (result != COROUTINE_SUSPENDED) {
+            c.resume(result)
+        }
+    } catch (e: InvocationTargetException) {
+        c.resumeWithException(e.targetException)
+    } catch (e: Throwable) {
+        c.resumeWithException(e)
+    }
+}
+
+fun <T : Annotation> java.lang.reflect.Method.getAnnotationInAncestors(clazz: Class<T>): T? {
+    val res = this.getAnnotation(clazz) ?: this.getDeclaredAnnotation(clazz)
+    if (res != null) return res
+
+    // Try interfaces
+    for (ifc in this.declaringClass.interfaces) {
+        return ignoreErrors { ifc?.getMethod(name, *parameterTypes)?.getAnnotationInAncestors(clazz) } ?: continue
+    }
+
+    // Try ancestor
+    return ignoreErrors { this.declaringClass.superclass?.getMethod(name, *parameterTypes) }?.getAnnotationInAncestors(
+            clazz
+    )
+}
+
+inline fun <T> ignoreErrors(callback: () -> T): T? = try {
+    callback()
+} catch (e: Throwable) {
+    null
+}
+
+fun Type.extractFirstGenericType(): Class<*> {
+    if (this is ParameterizedType) {
+        return this.actualTypeArguments.first().extractFirstGenericType()
+    }
+    if (this is WildcardType) {
+        val tt = this.lowerBounds.firstOrNull() ?: this.upperBounds.firstOrNull()
+        ?: error("WildcardType without lower/upper bounds")
+        return tt.extractFirstGenericType()
+    }
+    if (this is Class<*>) {
+        return this
+    }
+    error("Couldn't find right generic type")
+}
+
+suspend inline fun <reified T : Any> ApplicationCall.getBodyParam(name: String, noinline default: () -> T = { error("mandatory $name") }): T =
+    getTypedOrNull(Source.BODY, name, T::class.java) ?: default()
+
+suspend inline fun <reified T : Any> ApplicationCall.getPath(name: String, noinline default: () -> T = { error("mandatory $name") }): T =
+    getTypedOrNull(Source.PATH, name, T::class.java) ?: default()
+
+suspend inline fun <reified T : Any> ApplicationCall.getQuery(name: String, noinline default: () -> T = { error("mandatory $name") }): T =
+    getTypedOrNull(Source.QUERY, name, T::class.java) ?: default()

test/ApplicationTest.kt

@@ -0,0 +1,31 @@
+package com.kmalbz
+
+import io.ktor.application.*
+import io.ktor.response.*
+import io.ktor.request.*
+import io.ktor.routing.*
+import io.ktor.http.*
+import io.ktor.gson.*
+import io.ktor.features.*
+import io.ktor.client.*
+import io.ktor.client.engine.apache.*
+import com.fasterxml.jackson.databind.*
+import io.ktor.jackson.*
+import io.ktor.auth.*
+import kotlin.reflect.*
+import java.util.*
+import io.ktor.swagger.experimental.*
+import kotlin.test.*
+import io.ktor.server.testing.*
+
+class ApplicationTest {
+    @Test
+    fun testRoot() {
+        withTestApplication({ module(testing = true) }) {
+            handleRequest(HttpMethod.Get, "/").apply {
+                assertEquals(HttpStatusCode.OK, response.status())
+                assertEquals("HELLO WORLD!", response.content)
+            }
+        }
+    }
+}

test/OutputServiceRDBServerTest.kt

@@ -0,0 +1,98 @@
+package com.kmalbz
+
+import java.util.*
+import io.ktor.config.*
+import io.ktor.http.*
+import io.ktor.request.*
+import io.ktor.server.testing.*
+import io.ktor.swagger.experimental.*
+import kotlin.test.*
+
+class SwaggerRoutesTest {
+    /**
+     * @see OutputServiceRDBServer.getallnegative
+     */
+    @Test
+    fun testGetallnegative() {
+        withTestApplication {
+            // @TODO: Adjust path as required
+            handleRequest(HttpMethod.Get, "/output/filter/negative") {
+            }.apply {
+                // @TODO: Your test here
+                assertEquals(HttpStatusCode.OK, response.status())
+            }
+        }
+    }
+
+    /**
+     * @see OutputServiceRDBServer.getallpositive
+     */
+    @Test
+    fun testGetallpositive() {
+        withTestApplication {
+            // @TODO: Adjust path as required
+            handleRequest(HttpMethod.Get, "/output/filter/positive") {
+            }.apply {
+                // @TODO: Your test here
+                assertEquals(HttpStatusCode.OK, response.status())
+            }
+        }
+    }
+
+    /**
+     * @see OutputServiceRDBServer.getallafter
+     */
+    @Test
+    fun testGetallafter() {
+        withTestApplication {
+            // @TODO: Adjust path as required
+            handleRequest(HttpMethod.Get, "/output/after/{dateAfter}") {
+            }.apply {
+                // @TODO: Your test here
+                assertEquals(HttpStatusCode.OK, response.status())
+            }
+        }
+    }
+
+    /**
+     * @see OutputServiceRDBServer.getallbefore
+     */
+    @Test
+    fun testGetallbefore() {
+        withTestApplication {
+            // @TODO: Adjust path as required
+            handleRequest(HttpMethod.Get, "/output/before/{dateBefore}") {
+            }.apply {
+                // @TODO: Your test here
+                assertEquals(HttpStatusCode.OK, response.status())
+            }
+        }
+    }
+
+    /**
+     * @see OutputServiceRDBServer.getDecision
+     */
+    @Test
+    fun testGetDecision() {
+        withTestApplication {
+            // @TODO: Adjust path as required
+            handleRequest(HttpMethod.Get, "/output/{tagID}") {
+            }.apply {
+                // @TODO: Your test here
+                assertEquals(HttpStatusCode.OK, response.status())
+            }
+        }
+    }
+
+    fun <R> withTestApplication(test: TestApplicationEngine.() -> R): R {
+        return withApplication(createTestEnvironment()) {
+            (environment.config as MapApplicationConfig).apply {
+                put("jwt.secret", "TODO-change-this-supersecret-or-use-SECRET-env")
+            }
+            application.module()
+            test()
+        }
+    }
+
+    fun TestApplicationRequest.setBodyJson(value: Any?) = setBody(Json.stringify(value))
+}