Initial commit.

.gitignore

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+# OS / Runtime
+/**/.DS_Store
+/**/Thumbs.db
+/**/*.swp
+
+# IDE (Eclipse)
+.classpath
+.project
+.settings
+bin
+
+# IDE (Intellij IDEA)
+*.iml
+.idea
+out
+
+# Gradle
+.gradle
+build
+
+# Travis CI
+.ruby-version
+
+# Application
+/logs

.travis.yml

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+language: java
+
+jdk:
+  - openjdk11
+
+notifications:
+  email:
+    - scm@after-sunrise.com
+
+env:
+  global:
+    - JAVA_TOOL_OPTIONS=-Dhttps.protocols=TLSv1.2
+
+deploy:
+  provider: releases
+  api_key:
+    secure: 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
+  file: build/libs/dukas-gprc-*.war
+  file_glob: true
+  skip_cleanup: true
+  overwrite: true
+  draft: true
+  on:
+    repo: after-the-sunrise/dukas-grpc
+    tags: true

README.md

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+# dukas-grpc
+[![Build Status][travis-icon]][travis-page]
+
+**dukas-grpc** is a standalone server application for providing [gRPC][grpc-home] access to [Dukascopy][dukascopy-home]'s JForex trading platform.
+The official [JForex SDK][dukascopy-wiki] allows the user to use JForex API by programming custom Java applications.
+**dukas-grpc** server leverages this official SDK and provides gRPC access for the SDK.
+
+* [gRPC][grpc-home] interface for request/response communication and publish/subscribe stream messaging.
+* Optimized messaging performance over HTTP/2 or unix domain sockets.
+* Automatic connection management with JForex platform. (cf: connect, throttled-reconnect, ...)
+
+## Getting Started
+
+### Trading Account
+
+First of all, a valid [Dukascopy][dukascopy-home] trading account is required for the API access.
+If you do not have one yet, a demo account can be created on the fly.
+
+The IP address of the **dukas-grpc** server machine needs to be registered to the account. 
+This is mandatory, since API access from an unregistered IP address will need to provide a dynamic PIN code, 
+which is not ideal for automated server applications.
+IP whitelisting can be done via "Summary > My Account > Security Settings > IP registration" after logging into the official website. 
+
+### Launching Server
+
+* Java Runtime Environment 11 or later is required. (cf: `sudo dnf -y install java-11-openjdk`).
+* Download the WAR archive from [releases][github-releases] page.
+* Configure login credentials as either environment variables (`foo=bar java -jar ...`), or as system properties (`-Dfoo=bar`).
+* List of available configuration keys and default values can be found in `com.after_sunrise.dukascopy.grpc.Config.java`.
+* Use web-application container of your choice to deploy the war file, such as [jetty-runner].
+
+After launching the application, search the log output for the following lines to confirm that the login credentials are configured correctly.
+
+```text
+yyyy-MM-dd HH:mm:ss.SSS|INFO |...|IClient connecting... (url=http://platform.dukas.../jforex.jnlp,..., user=DemoUser)
+```
+
+## Sample Client/Server Applications
+
+* Create and configure a configuration file `./logs/dukas-test.properties` containing the login credentials.
+* From an IDE, launch `com.after_sunrise.dukascopy.grpc.WebappServerTest#main` to launch the server application.
+* From an IDE, launch `com.after_sunrise.dukascopy.grpc.WebappClientTest` methods to try out the requests and subscriptions.
+* gRPC IDL file can be found at `./src/main/proto/dukascopy.proto`.
+
+## Bulding from Source
+
+JDK 11 or later is required. Make sure the `JAVA_HOME` environment variable is configured.
+Then Clone the repository, and use gradle(w) to build the archives.
+
+```shell script
+$JAVA_HOME/bin/java -version
+
+git clone git@github.com:after-the-sunrise/dukas-grpc.git
+
+cd dukas-grpc && ./gradlew clean build
+```
+
+The archive is generated under `./build/libs/` directory.
+
+[travis-page]:https://travis-ci.org/after-the-sunrise/dukas-grpc
+[travis-icon]:https://travis-ci.org/after-the-sunrise/dukas-grpc.svg?branch=master
+[github-releases]:https://github.com/after-the-sunrise/dukas-grpc/releases
+[dukascopy-home]:https://www.dukascopy.com/
+[dukascopy-wiki]:https://www.dukascopy.com/wiki/en/development
+[grpc-home]:https://grpc.io/
+[jetty-runner]:https://www.eclipse.org/jetty/documentation/current/runner.html

build.gradle

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+plugins {
+    id 'java'
+    id 'war'
+    id 'com.google.protobuf' version '0.8.12'
+}
+
+repositories {
+    mavenCentral()
+    maven {
+        url "https://www.dukascopy.com/client/jforexlib/publicrepo"
+    }
+}
+
+ext {
+    grpcVersion = '1.29.0'
+}
+
+dependencies {
+    compile "com.dukascopy.api:JForex-API:2.13.88"
+    compile("com.dukascopy.dds2:DDS2-jClient-JForex:3.6.14") {
+        exclude group: "org.slf4j", module: "slf4j-log4j12"
+    }
+    implementation "com.google.inject:guice:4.2.3"
+    implementation "com.google.inject.extensions:guice-servlet:4.2.3"
+    implementation "io.grpc:grpc-netty:$grpcVersion"
+    implementation "io.grpc:grpc-protobuf:$grpcVersion"
+    implementation "io.grpc:grpc-stub:$grpcVersion"
+    implementation "io.netty:netty-transport-native-epoll:4.1.50.Final:linux-x86_64"
+    implementation "io.netty:netty-transport-native-kqueue:4.1.50.Final:osx-x86_64"
+    compileOnly "org.apache.tomcat:tomcat-annotations-api:9.0.35" // necessary for Java 9+
+    compileOnly "jakarta.servlet:jakarta.servlet-api:4.0.3"
+    runtimeOnly "io.prometheus:simpleclient_servlet:0.9.0"
+    runtimeOnly "io.prometheus:simpleclient_logback:0.9.0"
+    runtimeOnly "ch.qos.logback:logback-classic:1.2.3"
+    testImplementation "org.eclipse.jetty:jetty-webapp:9.4.29.v20200521"
+    testImplementation "org.mockito:mockito-core:3.3.3"
+    testImplementation "org.junit.jupiter:junit-jupiter-api:5.6.2"
+    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.6.2"
+}
+
+configurations.all {
+    resolutionStrategy {
+        // JForex requires version 19.0 (Futures#dereference), while netty requires newer.
+        force 'com.google.guava:guava:23.6-jre' // 23.6-jre meets both requirements.
+    }
+}
+
+protobuf {
+    protoc {
+        artifact = "com.google.protobuf:protoc:3.12.3"
+    }
+    plugins {
+        grpc {
+            artifact = "io.grpc:protoc-gen-grpc-java:$grpcVersion"
+        }
+    }
+    generateProtoTasks {
+        all()*.plugins {
+            grpc {}
+        }
+    }
+}
+
+sourceSets {
+    main.java.srcDirs += "build/generated/source/proto/main/grpc"
+    main.java.srcDirs += "build/generated/source/proto/main/java"
+}
+
+group "com.after_sunrise.dukascopy"
+version "0.0.1-SNAPSHOT"
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+test {
+    useJUnitPlatform()
+}

gradle/wrapper/gradle-wrapper.properties

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+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

gradlew

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+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  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 "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+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 or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; 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=`expr $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"
+
+exec "$JAVACMD" "$@"