From 5c4b21749b1d4ad5b0606371488713dfb7834a84 Mon Sep 17 00:00:00 2001 From: Andrew Lalis Date: Sun, 21 Nov 2021 23:46:01 +0100 Subject: [PATCH] Added all basic infrastructure. --- .gitignore | 36 ++ .mvn/wrapper/MavenWrapperDownloader.java | 117 +++++++ .mvn/wrapper/maven-wrapper.jar | Bin 0 -> 50710 bytes .mvn/wrapper/maven-wrapper.properties | 2 + mvnw | 310 ++++++++++++++++++ mvnw.cmd | 182 ++++++++++ pom.xml | 71 ++++ .../RailSignalApiApplication.java | 13 + .../railsignalapi/dao/BranchRepository.java | 16 + .../dao/RailSystemRepository.java | 10 + .../railsignalapi/dao/SignalRepository.java | 22 ++ .../railsignalapi/dao/TrainRepository.java | 9 + .../andrewl/railsignalapi/model/Branch.java | 38 +++ .../railsignalapi/model/BranchStatus.java | 6 + .../railsignalapi/model/Direction.java | 12 + .../andrewl/railsignalapi/model/Position.java | 17 + .../railsignalapi/model/RailSystem.java | 25 ++ .../andrewl/railsignalapi/model/Signal.java | 31 ++ .../model/SignalBranchConnection.java | 30 ++ .../nl/andrewl/railsignalapi/model/Train.java | 20 ++ .../rest/RailSystemsApiController.java | 26 ++ .../rest/SignalsApiController.java | 19 ++ .../andrewl/railsignalapi/rest/WebConfig.java | 11 + .../rest/dto/BranchResponse.java | 13 + .../rest/dto/RailSystemCreationPayload.java | 4 + .../rest/dto/RailSystemResponse.java | 9 + .../rest/dto/SignalCreationPayload.java | 10 + .../rest/dto/SignalResponse.java | 31 ++ .../service/RailSystemService.java | 34 ++ .../railsignalapi/service/SignalService.java | 128 ++++++++ .../websocket/BranchUpdateMessage.java | 4 + .../websocket/SignalUpdateMessage.java | 7 + .../websocket/SignalUpdateType.java | 15 + .../websocket/SignalWebSocketHandler.java | 50 +++ .../websocket/WebSocketConfig.java | 19 ++ src/main/resources/application.properties | 11 + .../RailSignalApiApplicationTests.java | 13 + 37 files changed, 1371 insertions(+) create mode 100644 .gitignore create mode 100644 .mvn/wrapper/MavenWrapperDownloader.java create mode 100644 .mvn/wrapper/maven-wrapper.jar create mode 100644 .mvn/wrapper/maven-wrapper.properties create mode 100644 mvnw create mode 100644 mvnw.cmd create mode 100644 pom.xml create mode 100644 src/main/java/nl/andrewl/railsignalapi/RailSignalApiApplication.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/dao/BranchRepository.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/dao/RailSystemRepository.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/dao/SignalRepository.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/dao/TrainRepository.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/Branch.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/BranchStatus.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/Direction.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/Position.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/RailSystem.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/Signal.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/SignalBranchConnection.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/model/Train.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/RailSystemsApiController.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/SignalsApiController.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/WebConfig.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/dto/BranchResponse.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemCreationPayload.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemResponse.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalCreationPayload.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalResponse.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/service/RailSystemService.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/service/SignalService.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/websocket/BranchUpdateMessage.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateMessage.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateType.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/websocket/SignalWebSocketHandler.java create mode 100644 src/main/java/nl/andrewl/railsignalapi/websocket/WebSocketConfig.java create mode 100644 src/main/resources/application.properties create mode 100644 src/test/java/nl/andrewl/railsignalapi/RailSignalApiApplicationTests.java diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..427f4dd --- /dev/null +++ b/.gitignore @@ -0,0 +1,36 @@ +HELP.md +target/ +!.mvn/wrapper/maven-wrapper.jar +!**/src/main/**/target/ +!**/src/test/**/target/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ +build/ +!**/src/main/**/build/ +!**/src/test/**/build/ + +### VS Code ### +.vscode/ + +*.mv.db +*.trace.db diff --git a/.mvn/wrapper/MavenWrapperDownloader.java b/.mvn/wrapper/MavenWrapperDownloader.java new file mode 100644 index 0000000..e76d1f3 --- /dev/null +++ b/.mvn/wrapper/MavenWrapperDownloader.java @@ -0,0 +1,117 @@ +/* + * Copyright 2007-present 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. + */ +import java.net.*; +import java.io.*; +import java.nio.channels.*; +import java.util.Properties; + +public class MavenWrapperDownloader { + + private static final String WRAPPER_VERSION = "0.5.6"; + /** + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. + */ + private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" + + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; + + /** + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to + * use instead of the default one. + */ + private static final String MAVEN_WRAPPER_PROPERTIES_PATH = + ".mvn/wrapper/maven-wrapper.properties"; + + /** + * Path where the maven-wrapper.jar will be saved to. + */ + private static final String MAVEN_WRAPPER_JAR_PATH = + ".mvn/wrapper/maven-wrapper.jar"; + + /** + * Name of the property which should be used to override the default download url for the wrapper. + */ + private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; + + public static void main(String args[]) { + System.out.println("- Downloader started"); + File baseDirectory = new File(args[0]); + System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); + + // If the maven-wrapper.properties exists, read it and check if it contains a custom + // wrapperUrl parameter. + File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); + String url = DEFAULT_DOWNLOAD_URL; + if(mavenWrapperPropertyFile.exists()) { + FileInputStream mavenWrapperPropertyFileInputStream = null; + try { + mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); + Properties mavenWrapperProperties = new Properties(); + mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); + url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); + } catch (IOException e) { + System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); + } finally { + try { + if(mavenWrapperPropertyFileInputStream != null) { + mavenWrapperPropertyFileInputStream.close(); + } + } catch (IOException e) { + // Ignore ... + } + } + } + System.out.println("- Downloading from: " + url); + + File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); + if(!outputFile.getParentFile().exists()) { + if(!outputFile.getParentFile().mkdirs()) { + System.out.println( + "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); + } + } + System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); + try { + downloadFileFromURL(url, outputFile); + System.out.println("Done"); + System.exit(0); + } catch (Throwable e) { + System.out.println("- Error downloading"); + e.printStackTrace(); + System.exit(1); + } + } + + private static void downloadFileFromURL(String urlString, File destination) throws Exception { + if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { + String username = System.getenv("MVNW_USERNAME"); + char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); + Authenticator.setDefault(new Authenticator() { + @Override + protected PasswordAuthentication getPasswordAuthentication() { + return new PasswordAuthentication(username, password); + } + }); + } + URL website = new URL(urlString); + ReadableByteChannel rbc; + rbc = Channels.newChannel(website.openStream()); + FileOutputStream fos = new FileOutputStream(destination); + fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); + fos.close(); + rbc.close(); + } + +} diff --git a/.mvn/wrapper/maven-wrapper.jar b/.mvn/wrapper/maven-wrapper.jar new file mode 100644 index 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HcmV?d00001 diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 0000000..a9f1ef8 --- /dev/null +++ b/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,2 @@ +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.3/apache-maven-3.8.3-bin.zip +wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar diff --git a/mvnw b/mvnw new file mode 100644 index 0000000..a16b543 --- /dev/null +++ b/mvnw @@ -0,0 +1,310 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + 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"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + 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 + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +########################################################################################## +# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +# This allows using the maven wrapper in projects that prohibit checking in binary data. +########################################################################################## +if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found .mvn/wrapper/maven-wrapper.jar" + fi +else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." + fi + if [ -n "$MVNW_REPOURL" ]; then + jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + else + jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + fi + while IFS="=" read key value; do + case "$key" in (wrapperUrl) jarUrl="$value"; break ;; + esac + done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" + if [ "$MVNW_VERBOSE" = true ]; then + echo "Downloading from: $jarUrl" + fi + wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" + if $cygwin; then + wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` + fi + + if command -v wget > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found wget ... using wget" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + wget "$jarUrl" -O "$wrapperJarPath" + else + wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" + fi + elif command -v curl > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found curl ... using curl" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + curl -o "$wrapperJarPath" "$jarUrl" -f + else + curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f + fi + + else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Falling back to using Java to download" + fi + javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" + # For Cygwin, switch paths to Windows format before running javac + if $cygwin; then + javaClass=`cygpath --path --windows "$javaClass"` + fi + if [ -e "$javaClass" ]; then + if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Compiling MavenWrapperDownloader.java ..." + fi + # Compiling the Java class + ("$JAVA_HOME/bin/javac" "$javaClass") + fi + if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + # Running the downloader + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Running MavenWrapperDownloader.java ..." + fi + ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") + fi + fi + fi +fi +########################################################################################## +# End of extension +########################################################################################## + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +# Provide a "standardized" way to retrieve the CLI args that will +# work with both Windows and non-Windows executions. +MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" +export MAVEN_CMD_LINE_ARGS + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/mvnw.cmd b/mvnw.cmd new file mode 100644 index 0000000..c8d4337 --- /dev/null +++ b/mvnw.cmd @@ -0,0 +1,182 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM https://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + +FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( + IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B +) + +@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +@REM This allows using the maven wrapper in projects that prohibit checking in binary data. +if exist %WRAPPER_JAR% ( + if "%MVNW_VERBOSE%" == "true" ( + echo Found %WRAPPER_JAR% + ) +) else ( + if not "%MVNW_REPOURL%" == "" ( + SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + ) + if "%MVNW_VERBOSE%" == "true" ( + echo Couldn't find %WRAPPER_JAR%, downloading it ... + echo Downloading from: %DOWNLOAD_URL% + ) + + powershell -Command "&{"^ + "$webclient = new-object System.Net.WebClient;"^ + "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ + "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ + "}"^ + "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ + "}" + if "%MVNW_VERBOSE%" == "true" ( + echo Finished downloading %WRAPPER_JAR% + ) +) +@REM End of extension + +@REM Provide a "standardized" way to retrieve the CLI args that will +@REM work with both Windows and non-Windows executions. +set MAVEN_CMD_LINE_ARGS=%* + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/pom.xml b/pom.xml new file mode 100644 index 0000000..35484b4 --- /dev/null +++ b/pom.xml @@ -0,0 +1,71 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 2.6.0 + + + nl.andrewl + rail-signal-api + 0.0.1-SNAPSHOT + rail-signal-api + A simple API for tracking rail traffic in signalled blocks. + + 17 + + + + org.springframework.boot + spring-boot-starter-data-jpa + + + org.springframework.boot + spring-boot-starter-web + + + org.springframework.boot + spring-boot-starter-websocket + + + com.h2database + h2 + + + + org.projectlombok + lombok + true + + + org.springframework.boot + spring-boot-starter-test + test + + + io.projectreactor + reactor-test + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + + + + + + + + diff --git a/src/main/java/nl/andrewl/railsignalapi/RailSignalApiApplication.java b/src/main/java/nl/andrewl/railsignalapi/RailSignalApiApplication.java new file mode 100644 index 0000000..ae01990 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/RailSignalApiApplication.java @@ -0,0 +1,13 @@ +package nl.andrewl.railsignalapi; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class RailSignalApiApplication { + + public static void main(String[] args) { + SpringApplication.run(RailSignalApiApplication.class, args); + } + +} diff --git a/src/main/java/nl/andrewl/railsignalapi/dao/BranchRepository.java b/src/main/java/nl/andrewl/railsignalapi/dao/BranchRepository.java new file mode 100644 index 0000000..81a6271 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/dao/BranchRepository.java @@ -0,0 +1,16 @@ +package nl.andrewl.railsignalapi.dao; + +import nl.andrewl.railsignalapi.model.Branch; +import nl.andrewl.railsignalapi.model.RailSystem; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +import java.util.List; +import java.util.Optional; + +@Repository +public interface BranchRepository extends JpaRepository { + Optional findByIdAndRailSystem(long id, RailSystem railSystem); + Optional findByNameAndRailSystem(String name, RailSystem railSystem); + List findAllByNameAndRailSystem(String name, RailSystem railSystem); +} diff --git a/src/main/java/nl/andrewl/railsignalapi/dao/RailSystemRepository.java b/src/main/java/nl/andrewl/railsignalapi/dao/RailSystemRepository.java new file mode 100644 index 0000000..24c9bf8 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/dao/RailSystemRepository.java @@ -0,0 +1,10 @@ +package nl.andrewl.railsignalapi.dao; + +import nl.andrewl.railsignalapi.model.RailSystem; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +@Repository +public interface RailSystemRepository extends JpaRepository { + boolean existsByName(String name); +} diff --git a/src/main/java/nl/andrewl/railsignalapi/dao/SignalRepository.java b/src/main/java/nl/andrewl/railsignalapi/dao/SignalRepository.java new file mode 100644 index 0000000..ac3d5fa --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/dao/SignalRepository.java @@ -0,0 +1,22 @@ +package nl.andrewl.railsignalapi.dao; + +import nl.andrewl.railsignalapi.model.Branch; +import nl.andrewl.railsignalapi.model.RailSystem; +import nl.andrewl.railsignalapi.model.Signal; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.data.jpa.repository.Query; +import org.springframework.stereotype.Repository; + +import java.util.List; +import java.util.Optional; + +@Repository +public interface SignalRepository extends JpaRepository { + Optional findByIdAndRailSystem(long id, RailSystem railSystem); + boolean existsByNameAndRailSystem(String name, RailSystem railSystem); + + @Query("SELECT DISTINCT s FROM Signal s " + + "LEFT JOIN s.branchConnections bc " + + "WHERE bc.branch = :branch") + List findAllConnectedToBranch(Branch branch); +} diff --git a/src/main/java/nl/andrewl/railsignalapi/dao/TrainRepository.java b/src/main/java/nl/andrewl/railsignalapi/dao/TrainRepository.java new file mode 100644 index 0000000..621136f --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/dao/TrainRepository.java @@ -0,0 +1,9 @@ +package nl.andrewl.railsignalapi.dao; + +import nl.andrewl.railsignalapi.model.Train; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +@Repository +public interface TrainRepository extends JpaRepository { +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/Branch.java b/src/main/java/nl/andrewl/railsignalapi/model/Branch.java new file mode 100644 index 0000000..68af2c3 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/Branch.java @@ -0,0 +1,38 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.Getter; +import lombok.NoArgsConstructor; +import lombok.Setter; + +import javax.persistence.*; +import java.util.HashSet; +import java.util.Set; + +@Entity +@NoArgsConstructor +@Getter +public class Branch { + @Id + @GeneratedValue + private Long id; + + @ManyToOne(optional = false, fetch = FetchType.LAZY) + private RailSystem railSystem; + + @Column(nullable = false) + private String name; + + @Enumerated(EnumType.STRING) + @Setter + private BranchStatus status; + + @OneToMany(mappedBy = "branch", orphanRemoval = true) + private Set signalConnections; + + public Branch(RailSystem railSystem, String name, BranchStatus status) { + this.railSystem = railSystem; + this.name = name; + this.status = status; + this.signalConnections = new HashSet<>(); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/BranchStatus.java b/src/main/java/nl/andrewl/railsignalapi/model/BranchStatus.java new file mode 100644 index 0000000..cbca38b --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/BranchStatus.java @@ -0,0 +1,6 @@ +package nl.andrewl.railsignalapi.model; + +public enum BranchStatus { + FREE, + OCCUPIED +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/Direction.java b/src/main/java/nl/andrewl/railsignalapi/model/Direction.java new file mode 100644 index 0000000..363f5e0 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/Direction.java @@ -0,0 +1,12 @@ +package nl.andrewl.railsignalapi.model; + +public enum Direction { + NORTH, + SOUTH, + EAST, + WEST, + NORTH_WEST, + NORTH_EAST, + SOUTH_WEST, + SOUTH_EAST +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/Position.java b/src/main/java/nl/andrewl/railsignalapi/model/Position.java new file mode 100644 index 0000000..9060feb --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/Position.java @@ -0,0 +1,17 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +import javax.persistence.Embeddable; + +@Embeddable +@Data +@AllArgsConstructor +@NoArgsConstructor +public class Position { + private double x; + private double y; + private double z; +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/RailSystem.java b/src/main/java/nl/andrewl/railsignalapi/model/RailSystem.java new file mode 100644 index 0000000..6401810 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/RailSystem.java @@ -0,0 +1,25 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.Getter; +import lombok.NoArgsConstructor; + +import javax.persistence.Column; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.Id; + +@Entity +@Getter +@NoArgsConstructor +public class RailSystem { + @Id + @GeneratedValue + private Long id; + + @Column(nullable = false, unique = true) + private String name; + + public RailSystem(String name) { + this.name = name; + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/Signal.java b/src/main/java/nl/andrewl/railsignalapi/model/Signal.java new file mode 100644 index 0000000..5f180b7 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/Signal.java @@ -0,0 +1,31 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.Getter; +import lombok.NoArgsConstructor; + +import javax.persistence.*; +import java.util.Set; + +@Entity +@Getter +@NoArgsConstructor +public class Signal { + @Id + @GeneratedValue + private Long id; + + @ManyToOne(optional = false, fetch = FetchType.LAZY) + private RailSystem railSystem; + + @Column(nullable = false) + private String name; + + @OneToMany(mappedBy = "signal", orphanRemoval = true, cascade = CascadeType.ALL) + private Set branchConnections; + + public Signal(RailSystem railSystem, String name, Set branchConnections) { + this.railSystem = railSystem; + this.name = name; + this.branchConnections = branchConnections; + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/SignalBranchConnection.java b/src/main/java/nl/andrewl/railsignalapi/model/SignalBranchConnection.java new file mode 100644 index 0000000..94ba5bc --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/SignalBranchConnection.java @@ -0,0 +1,30 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.Getter; +import lombok.NoArgsConstructor; + +import javax.persistence.*; + +@Entity +@NoArgsConstructor +@Getter +public class SignalBranchConnection { + @Id + @GeneratedValue + private Long id; + + @ManyToOne(optional = false) + private Signal signal; + + @ManyToOne(optional = false, cascade = CascadeType.PERSIST) + private Branch branch; + + @Enumerated(EnumType.STRING) + private Direction direction; + + public SignalBranchConnection(Signal signal, Branch branch, Direction direction) { + this.signal = signal; + this.branch = branch; + this.direction = direction; + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/model/Train.java b/src/main/java/nl/andrewl/railsignalapi/model/Train.java new file mode 100644 index 0000000..09a05b8 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/model/Train.java @@ -0,0 +1,20 @@ +package nl.andrewl.railsignalapi.model; + +import lombok.Getter; +import lombok.NoArgsConstructor; + +import javax.persistence.*; + +@Entity +@NoArgsConstructor +@Getter +public class Train { + @Id + @GeneratedValue + private Long id; + + private String name; + + @ManyToOne(fetch = FetchType.LAZY) + private Branch currentBranch; +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/RailSystemsApiController.java b/src/main/java/nl/andrewl/railsignalapi/rest/RailSystemsApiController.java new file mode 100644 index 0000000..480fd5f --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/RailSystemsApiController.java @@ -0,0 +1,26 @@ +package nl.andrewl.railsignalapi.rest; + +import lombok.RequiredArgsConstructor; +import nl.andrewl.railsignalapi.rest.dto.RailSystemCreationPayload; +import nl.andrewl.railsignalapi.rest.dto.RailSystemResponse; +import nl.andrewl.railsignalapi.service.RailSystemService; +import org.springframework.web.bind.annotation.*; + +import java.util.List; + +@RestController +@RequestMapping(path = "/api/railSystems") +@RequiredArgsConstructor +public class RailSystemsApiController { + private final RailSystemService railSystemService; + + @GetMapping + public List getRailSystems() { + return railSystemService.getRailSystems(); + } + + @PostMapping + public RailSystemResponse createRailSystem(@RequestBody RailSystemCreationPayload payload) { + return railSystemService.createRailSystem(payload); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/SignalsApiController.java b/src/main/java/nl/andrewl/railsignalapi/rest/SignalsApiController.java new file mode 100644 index 0000000..bfc1fcb --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/SignalsApiController.java @@ -0,0 +1,19 @@ +package nl.andrewl.railsignalapi.rest; + +import lombok.RequiredArgsConstructor; +import nl.andrewl.railsignalapi.rest.dto.SignalCreationPayload; +import nl.andrewl.railsignalapi.rest.dto.SignalResponse; +import nl.andrewl.railsignalapi.service.SignalService; +import org.springframework.web.bind.annotation.*; + +@RestController +@RequestMapping(path = "/api/railSystems/{rsId}/signals") +@RequiredArgsConstructor +public class SignalsApiController { + private final SignalService signalService; + + @PostMapping + public SignalResponse createSignal(@PathVariable long rsId, @RequestBody SignalCreationPayload payload) { + return signalService.createSignal(rsId, payload); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/WebConfig.java b/src/main/java/nl/andrewl/railsignalapi/rest/WebConfig.java new file mode 100644 index 0000000..a6cfeb8 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/WebConfig.java @@ -0,0 +1,11 @@ +package nl.andrewl.railsignalapi.rest; + +import org.springframework.context.annotation.Configuration; +import org.springframework.web.servlet.config.annotation.EnableWebMvc; +import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; + +@Configuration +@EnableWebMvc +public class WebConfig implements WebMvcConfigurer { + +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/dto/BranchResponse.java b/src/main/java/nl/andrewl/railsignalapi/rest/dto/BranchResponse.java new file mode 100644 index 0000000..413fa7c --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/dto/BranchResponse.java @@ -0,0 +1,13 @@ +package nl.andrewl.railsignalapi.rest.dto; + +import nl.andrewl.railsignalapi.model.Branch; + +public record BranchResponse( + long id, + String name, + String status +) { + public BranchResponse(Branch branch) { + this(branch.getId(), branch.getName(), branch.getStatus().name()); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemCreationPayload.java b/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemCreationPayload.java new file mode 100644 index 0000000..a1d3b9d --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemCreationPayload.java @@ -0,0 +1,4 @@ +package nl.andrewl.railsignalapi.rest.dto; + +public record RailSystemCreationPayload(String name) { +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemResponse.java b/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemResponse.java new file mode 100644 index 0000000..c868996 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/dto/RailSystemResponse.java @@ -0,0 +1,9 @@ +package nl.andrewl.railsignalapi.rest.dto; + +import nl.andrewl.railsignalapi.model.RailSystem; + +public record RailSystemResponse(long id, String name) { + public RailSystemResponse(RailSystem rs) { + this(rs.getId(), rs.getName()); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalCreationPayload.java b/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalCreationPayload.java new file mode 100644 index 0000000..3c9d7c0 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalCreationPayload.java @@ -0,0 +1,10 @@ +package nl.andrewl.railsignalapi.rest.dto; + +import java.util.List; + +public record SignalCreationPayload( + String name, + List branchConnections +) { + public static record BranchData(String direction, String name, Long id) {} +} diff --git a/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalResponse.java b/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalResponse.java new file mode 100644 index 0000000..e11b4f9 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/rest/dto/SignalResponse.java @@ -0,0 +1,31 @@ +package nl.andrewl.railsignalapi.rest.dto; + +import nl.andrewl.railsignalapi.model.Signal; +import nl.andrewl.railsignalapi.model.SignalBranchConnection; + +import java.util.List; + +public record SignalResponse( + long id, + String name, + List branchConnections +) { + public SignalResponse(Signal signal) { + this( + signal.getId(), + signal.getName(), + signal.getBranchConnections().stream() + .map(ConnectionData::new) + .toList() + ); + } + + public static record ConnectionData( + String direction, + BranchResponse branch + ) { + public ConnectionData(SignalBranchConnection c) { + this(c.getDirection().name(), new BranchResponse(c.getBranch())); + } + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/service/RailSystemService.java b/src/main/java/nl/andrewl/railsignalapi/service/RailSystemService.java new file mode 100644 index 0000000..2b20372 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/service/RailSystemService.java @@ -0,0 +1,34 @@ +package nl.andrewl.railsignalapi.service; + +import lombok.RequiredArgsConstructor; +import nl.andrewl.railsignalapi.dao.RailSystemRepository; +import nl.andrewl.railsignalapi.model.RailSystem; +import nl.andrewl.railsignalapi.rest.dto.RailSystemCreationPayload; +import nl.andrewl.railsignalapi.rest.dto.RailSystemResponse; +import org.springframework.data.domain.Sort; +import org.springframework.http.HttpStatus; +import org.springframework.stereotype.Service; +import org.springframework.transaction.annotation.Transactional; +import org.springframework.web.server.ResponseStatusException; + +import java.util.List; + +@Service +@RequiredArgsConstructor +public class RailSystemService { + private final RailSystemRepository railSystemRepository; + + @Transactional + public List getRailSystems() { + return railSystemRepository.findAll(Sort.by("name")).stream().map(RailSystemResponse::new).toList(); + } + + @Transactional + public RailSystemResponse createRailSystem(RailSystemCreationPayload payload) { + if (railSystemRepository.existsByName(payload.name())) { + throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "A rail system with that name already exists."); + } + RailSystem rs = new RailSystem(payload.name()); + return new RailSystemResponse(railSystemRepository.save(rs)); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/service/SignalService.java b/src/main/java/nl/andrewl/railsignalapi/service/SignalService.java new file mode 100644 index 0000000..21f86e2 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/service/SignalService.java @@ -0,0 +1,128 @@ +package nl.andrewl.railsignalapi.service; + +import com.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import nl.andrewl.railsignalapi.dao.BranchRepository; +import nl.andrewl.railsignalapi.dao.RailSystemRepository; +import nl.andrewl.railsignalapi.dao.SignalRepository; +import nl.andrewl.railsignalapi.model.*; +import nl.andrewl.railsignalapi.rest.dto.SignalCreationPayload; +import nl.andrewl.railsignalapi.rest.dto.SignalResponse; +import nl.andrewl.railsignalapi.websocket.BranchUpdateMessage; +import nl.andrewl.railsignalapi.websocket.SignalUpdateMessage; +import nl.andrewl.railsignalapi.websocket.SignalUpdateType; +import org.springframework.http.HttpStatus; +import org.springframework.stereotype.Service; +import org.springframework.transaction.annotation.Transactional; +import org.springframework.web.server.ResponseStatusException; +import org.springframework.web.socket.TextMessage; +import org.springframework.web.socket.WebSocketMessage; +import org.springframework.web.socket.WebSocketSession; + +import java.io.IOException; +import java.util.HashSet; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.concurrent.ConcurrentHashMap; + +@Service +@RequiredArgsConstructor +@Slf4j +public class SignalService { + private final RailSystemRepository railSystemRepository; + private final SignalRepository signalRepository; + private final BranchRepository branchRepository; + + private final Map signalWebSocketSessions = new ConcurrentHashMap<>(); + + @Transactional + public SignalResponse createSignal(long rsId, SignalCreationPayload payload) { + var rs = railSystemRepository.findById(rsId) + .orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND, "Rail system not found.")); + if (signalRepository.existsByNameAndRailSystem(payload.name(), rs)) { + throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Signal " + payload.name() + " already exists."); + } + Set branchConnections = new HashSet<>(); + Signal signal = new Signal(rs, payload.name(), branchConnections); + for (var branchData : payload.branchConnections()) { + Branch branch; + if (branchData.id() != null) { + branch = this.branchRepository.findByIdAndRailSystem(branchData.id(), rs) + .orElseThrow(() -> new ResponseStatusException(HttpStatus.BAD_REQUEST, "Branch id " + branchData.id() + " is invalid.")); + } else { + branch = this.branchRepository.findByNameAndRailSystem(branchData.name(), rs) + .orElse(new Branch(rs, branchData.name(), BranchStatus.FREE)); + } + Direction dir = Direction.valueOf(branchData.direction().trim().toUpperCase()); + branchConnections.add(new SignalBranchConnection(signal, branch, dir)); + } + signal = signalRepository.save(signal); + return new SignalResponse(signal); + } + + public void registerSignalWebSocketSession(long signalId, WebSocketSession session) { + this.signalWebSocketSessions.put(signalId, session); + } + + public void deregisterSignalWebSocketSession(long signalId) { + this.signalWebSocketSessions.remove(signalId); + } + + @Transactional + public void handleSignalUpdate(long signalId, SignalUpdateMessage updateMessage) { + var signal = signalRepository.findById(signalId) + .orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND)); + Branch fromBranch = null; + Branch toBranch = null; + for (var con : signal.getBranchConnections()) { + if (con.getBranch().getId() == updateMessage.fromBranchId()) { + fromBranch = con.getBranch(); + } + if (con.getBranch().getId() == updateMessage.toBranchId()) { + toBranch = con.getBranch(); + } + } + if (fromBranch == null || toBranch == null) { + throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid branches."); + } + SignalUpdateType updateType = SignalUpdateType.valueOf(updateMessage.type().trim().toUpperCase()); + if (updateType == SignalUpdateType.BEGIN && toBranch.getStatus() != BranchStatus.FREE) { + log.warn("Warning! Train is entering a non-free branch {}.", toBranch.getName()); + } + if (toBranch.getStatus() != BranchStatus.OCCUPIED) { + toBranch.setStatus(BranchStatus.OCCUPIED); + branchRepository.save(toBranch); + broadcastToConnectedSignals(toBranch); + } + if (updateType == SignalUpdateType.END) { + if (fromBranch.getStatus() != BranchStatus.FREE) { + fromBranch.setStatus(BranchStatus.FREE); + branchRepository.save(fromBranch); + broadcastToConnectedSignals(fromBranch); + } + } + } + + private void broadcastToConnectedSignals(Branch branch) { + ObjectMapper mapper = new ObjectMapper(); + try { + WebSocketMessage msg = new TextMessage(mapper.writeValueAsString(new BranchUpdateMessage(branch.getId(), branch.getStatus().name()))); + signalRepository.findAllConnectedToBranch(branch).stream() + .map(s -> signalWebSocketSessions.get(s.getId())) + .filter(Objects::nonNull) + .forEach(session -> { + try { + session.sendMessage(msg); + } catch (IOException e) { + e.printStackTrace(); + } + }); + } catch (JsonProcessingException e) { + e.printStackTrace(); + } + + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/websocket/BranchUpdateMessage.java b/src/main/java/nl/andrewl/railsignalapi/websocket/BranchUpdateMessage.java new file mode 100644 index 0000000..fdea444 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/websocket/BranchUpdateMessage.java @@ -0,0 +1,4 @@ +package nl.andrewl.railsignalapi.websocket; + +public record BranchUpdateMessage(long branchId, String status) { +} diff --git a/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateMessage.java b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateMessage.java new file mode 100644 index 0000000..029da99 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateMessage.java @@ -0,0 +1,7 @@ +package nl.andrewl.railsignalapi.websocket; + +public record SignalUpdateMessage( + long fromBranchId, + long toBranchId, + String type +) {} diff --git a/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateType.java b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateType.java new file mode 100644 index 0000000..de89e9a --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalUpdateType.java @@ -0,0 +1,15 @@ +package nl.andrewl.railsignalapi.websocket; + +public enum SignalUpdateType { + /** + * Indicates the beginning of a train's transition between two signalled + * sections of rail. + */ + BEGIN, + + /** + * Indicates the end of a train's transition between two signalled sections + * of rail. + */ + END +} diff --git a/src/main/java/nl/andrewl/railsignalapi/websocket/SignalWebSocketHandler.java b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalWebSocketHandler.java new file mode 100644 index 0000000..f8cd9e4 --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/websocket/SignalWebSocketHandler.java @@ -0,0 +1,50 @@ +package nl.andrewl.railsignalapi.websocket; + +import com.fasterxml.jackson.databind.ObjectMapper; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import nl.andrewl.railsignalapi.service.SignalService; +import org.springframework.stereotype.Component; +import org.springframework.web.socket.CloseStatus; +import org.springframework.web.socket.TextMessage; +import org.springframework.web.socket.WebSocketSession; +import org.springframework.web.socket.handler.TextWebSocketHandler; + +@Component +@RequiredArgsConstructor +@Slf4j +public class SignalWebSocketHandler extends TextWebSocketHandler { + private final ObjectMapper mapper = new ObjectMapper(); + private final SignalService signalService; + + @Override + public void afterConnectionEstablished(WebSocketSession session) throws Exception { + String signalIdHeader = session.getHandshakeHeaders().getFirst("X-RailSignal-SignalId"); + if (signalIdHeader == null || signalIdHeader.isBlank()) { + session.close(CloseStatus.PROTOCOL_ERROR); + return; + } + long signalId = Long.parseLong(signalIdHeader); + session.getAttributes().put("signalId", signalId); + signalService.registerSignalWebSocketSession(signalId, session); + log.info("Connection established with signal {}.", signalId); + } + + @Override + protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception { + var msg = mapper.readValue(message.getPayload(), SignalUpdateMessage.class); + Long signalId = (Long) session.getAttributes().get("signalId"); + if (signalId == null) { + log.warn("Got text message from a websocket session that did not establish a signalId session attribute."); + } else { + log.info("Received update from signal {}.", signalId); + signalService.handleSignalUpdate(signalId, msg); + } + } + + @Override + public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception { + signalService.deregisterSignalWebSocketSession((Long) session.getAttributes().get("signalId")); + log.info("Closed connection to signal {}. Status: {}", session.getAttributes().get("signalId"), status.toString()); + } +} diff --git a/src/main/java/nl/andrewl/railsignalapi/websocket/WebSocketConfig.java b/src/main/java/nl/andrewl/railsignalapi/websocket/WebSocketConfig.java new file mode 100644 index 0000000..21a186c --- /dev/null +++ b/src/main/java/nl/andrewl/railsignalapi/websocket/WebSocketConfig.java @@ -0,0 +1,19 @@ +package nl.andrewl.railsignalapi.websocket; + +import lombok.RequiredArgsConstructor; +import org.springframework.context.annotation.Configuration; +import org.springframework.web.socket.config.annotation.EnableWebSocket; +import org.springframework.web.socket.config.annotation.WebSocketConfigurer; +import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry; + +@Configuration +@EnableWebSocket +@RequiredArgsConstructor +public class WebSocketConfig implements WebSocketConfigurer { + private final SignalWebSocketHandler webSocketHandler; + + @Override + public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { + registry.addHandler(webSocketHandler, "/api/ws-signal"); + } +} diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties new file mode 100644 index 0000000..0275ce5 --- /dev/null +++ b/src/main/resources/application.properties @@ -0,0 +1,11 @@ +spring.datasource.url=jdbc:h2:file:./rail-signal-api-db +spring.jpa.hibernate.ddl-auto=update +spring.jpa.open-in-view=false + +spring.datasource.hikari.maximum-pool-size=5 +spring.datasource.hikari.minimum-idle=1 + +server.port=8080 +server.tomcat.threads.max=10 +server.tomcat.threads.min-spare=2 +server.tomcat.processor-cache=50 diff --git a/src/test/java/nl/andrewl/railsignalapi/RailSignalApiApplicationTests.java b/src/test/java/nl/andrewl/railsignalapi/RailSignalApiApplicationTests.java new file mode 100644 index 0000000..ddedc15 --- /dev/null +++ b/src/test/java/nl/andrewl/railsignalapi/RailSignalApiApplicationTests.java @@ -0,0 +1,13 @@ +package nl.andrewl.railsignalapi; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class RailSignalApiApplicationTests { + + @Test + void contextLoads() { + } + +}