initial version of REST web server for TCPTimeCounter

VerteilteSysteme-Examples/build/build-server-jars.xml

@@ -7,7 +7,7 @@
 	<property name="dir.workspace" value=".." />
 	<property name="dir.jarfile" value="." />
 
-	<target name="all" depends="create_run_jar_tcpserver, create_run_jar_udpserver, create_run_jar_tcpservermulti, create_run_jar_udpservermulti, create_run_jar_udptimecounterserver, create_run_jar_tcpperfserver, create_run_jar_rmiechoserver, create_run_jar_rmimandelbrotcalculationsserver, create_run_jar_tcptimecounterserver">
+	<target name="all" depends="create_run_jar_tcpserver, create_run_jar_udpserver, create_run_jar_tcpservermulti, create_run_jar_udpservermulti, create_run_jar_udptimecounterserver, create_run_jar_tcpperfserver, create_run_jar_rmiechoserver, create_run_jar_rmimandelbrotcalculationsserver, create_run_jar_tcptimecounterserver, create_run_jar_tcptimecounterrestserver">
 	</target>
 
 	<target name="create_run_jar_tcpserver">
@@ -91,33 +91,25 @@
 	</target>
 
 	<target name="create_run_jar_tcptimecounterserver">
-<!--
-		<path id="build.classpath">
-			<fileset dir="${dir.buildfile}/lib-aws">
-				<include name="*.jar" />
-			</fileset>
-		</path>
-
-		<pathconvert property="mf.classpath" pathsep=" ">
-			<path refid="build.classpath" />
-			<flattenmapper />
-		</pathconvert>
--->
 		<jar destfile="${dir.jarfile}/TCPTimeCounterServer.jar" filesetmanifest="mergewithoutmain">
 			<manifest>
 				<attribute name="Main-Class" value="verteiltesysteme.aws.TCPTimeCounterServer" />
-<!--
-				<attribute name="Class-Path" value="${mf.classpath}" />
--->
 			</manifest>
 			<fileset dir="${dir.buildfile}/bin" />
-<!--
-			<fileset dir="${dir.buildfile}/lib-aws">
-				<include name="*.jar" />
-			</fileset>
--->
 			<zipgroupfileset dir="${dir.buildfile}/lib-aws" includes="*.jar" />
 		</jar>
 	</target>
 
+	<target name="create_run_jar_tcptimecounterrestserver">
+		<jar destfile="${dir.jarfile}/TCPTimeCounterRESTServer.jar" filesetmanifest="mergewithoutmain">
+			<manifest>
+				<attribute name="Main-Class" value="verteiltesysteme.aws.TCPTimeCounterRESTServer" />
+			</manifest>
+			<fileset dir="${dir.buildfile}/bin" />
+			<zipgroupfileset dir="${dir.buildfile}/lib-aws" includes="*.jar" />
+			<zipgroupfileset dir="${dir.buildfile}/lib" includes="*.jar" />
+		</jar>
+	</target>
+	
+	
 </project>

VerteilteSysteme-Examples/src/verteiltesysteme/aws/TCPTimeCounterRESTServer.java

@@ -0,0 +1,32 @@
+/* Beispiel angelehnt an http://www.torsten-horn.de/techdocs/jee-rest.htm */
+package verteiltesysteme.aws;
+
+import java.io.IOException;
+import java.net.URI;
+import org.glassfish.grizzly.http.server.HttpServer;
+import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory;
+import org.glassfish.jersey.server.ResourceConfig;
+
+public class TCPTimeCounterRESTServer
+{
+   public static void main( String[] args ) throws IOException, InterruptedException 
+   {
+      String baseUrl = ( args.length > 0 ) ? args[0] : "http://localhost:36042";
+
+      final HttpServer server = GrizzlyHttpServerFactory.createHttpServer(
+            URI.create( baseUrl ), new ResourceConfig( TCPTimeCounterRESTService.class ), false );
+      Runtime.getRuntime().addShutdownHook( new Thread( new Runnable() {
+         @Override
+         public void run() {
+            server.shutdownNow();
+         }
+      } ) );
+      server.start();
+
+      System.out.println("Grizzly-HTTP-Server gestartet");
+      System.out.println("Stoppen des Grizzly-HTTP-Servers mit: Strg+C\n");
+      System.out.println("RESTful Web Service URL: " + baseUrl + TCPTimeCounterRESTService.webContextPath);
+
+      Thread.currentThread().join();
+   }
+}

VerteilteSysteme-Examples/src/verteiltesysteme/aws/TCPTimeCounterRESTService.java

@@ -0,0 +1,78 @@
+/* Beispiel angelehnt an http://www.torsten-horn.de/techdocs/jee-rest.htm */
+package verteiltesysteme.aws;
+
+import javax.ws.rs.*;
+import javax.ws.rs.core.MediaType;
+
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.AmazonS3ClientBuilder;
+
+@Path(TCPTimeCounterRESTService.webContextPath)
+public class TCPTimeCounterRESTService {
+	static final String webContextPath = "/counter";
+	static final String bucketName = "vertsys-counter";
+	
+	private Long getCounter() {
+		// Verbindung zu S3
+		AmazonS3 s3Client = AmazonS3ClientBuilder.defaultClient();
+		String region = s3Client.getRegionName();
+		return new Long(s3Client.getObjectAsString(bucketName, region));
+	}
+	
+	private boolean setCounter(Long counter) {
+		// Verbindung zu S3
+		AmazonS3 s3Client = AmazonS3ClientBuilder.defaultClient();
+		String region = s3Client.getRegionName();
+		s3Client.putObject(bucketName, region, new Long(counter).toString());
+		return true;
+	}
+
+	@GET
+	@Produces(MediaType.TEXT_PLAIN)
+	public String getCounterPlain() {
+		return "Plain-Text: " + getCounter();
+	}
+
+	@GET
+	@Produces(MediaType.TEXT_HTML)
+	public String getCounterHtml() {
+		return "<html><head><title>TCPTimeCounter REST Service</title><meta http-equiv=\"refresh\" content=\"5\"/></head><body><h2>HTML: " + getCounter() + "</h2></body></html>";
+	}
+
+	@GET
+	@Produces(MediaType.APPLICATION_JSON)
+	public String getCounterJson() {
+		return "{\n  \"type\": \"JSON\",\n  \"output\": \"" + getCounter() + "\"\n}";
+	}
+
+	@POST
+	@Consumes(MediaType.TEXT_PLAIN)
+	@Produces(MediaType.TEXT_PLAIN)
+	public String incrCounterPlain(@FormParam("input") String input) {
+		Long currentCounterValue = getCounter();
+		currentCounterValue = currentCounterValue + (new Long(input)).longValue(); 
+		setCounter(currentCounterValue);
+		return "Plain-Text: TCPTimeCounter counter increased by " + input + " to " + currentCounterValue;
+	}
+
+	@POST
+	@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
+	@Produces(MediaType.TEXT_HTML)
+	public String incrCounterHtml(@FormParam("input") String input) {
+		Long currentCounterValue = getCounter();
+		currentCounterValue = currentCounterValue + (new Long(input)).longValue(); 
+		setCounter(currentCounterValue);
+		return "<html><title>TCPTimeCounter counter increased by " + input + " to " + currentCounterValue + "</h2></body></html>";
+	}
+
+	@POST
+	@Consumes(MediaType.TEXT_PLAIN)
+	@Produces(MediaType.APPLICATION_JSON)
+	public String incrCounterJson(@QueryParam("input") String input) {
+		Long currentCounterValue = getCounter();
+		currentCounterValue = currentCounterValue + (new Long(input)).longValue();
+		setCounter(currentCounterValue);
+		return "{\n  \"type\": \"JSON\",\n  \"output\": \"Plain-Text: TCPTimeCounter counter increased by " + input + " to " + currentCounterValue + "\"\n}";
+	}	
+	
+}

VerteilteSysteme-Examples/src/verteiltesysteme/aws/user-data.txt

@@ -11,7 +11,7 @@
 SCRIPT_ROOT_PATH="/tmp/init-script"
 VERTSYS_PATH="$SCRIPT_ROOT_PATH/verteilte-systeme-bsc-ai-examples/VerteilteSysteme-Examples/build/"
 #JARS = "TCPServer.jar TCPServerMulti.jar UDPServer.jar UDPServerMulti.jar UDPTimeCounterServer.jar TCPTimeCounterServer.jar TCPPerfServer.jar"
-JARS="TCPServer.jar TCPPerfServer.jar UDPServer.jar UDPTimeCounterServer.jar TCPTimeCounterServer.jar"
+JARS="TCPServer.jar TCPPerfServer.jar UDPServer.jar UDPTimeCounterServer.jar TCPTimeCounterServer.jar TCPTimeCounterRESTServer.jar"
 REPO="https://gogs.informatik.hs-fulda.de/srieger/verteilte-systeme-bsc-ai-examples.git"
 
 # Create path to run the script