From 7a789c5e66fd743cd86353a5772c7d80a2c1f3be Mon Sep 17 00:00:00 2001
From: giomba <giomba@glgprograms.it>
Date: Sat, 16 Nov 2019 16:30:10 +0100
Subject: [PATCH] First draft of client

---
 client/.classpath                           | 20 +++++
 client/.gitignore                           |  2 +
 client/.project                             | 23 ++++++
 client/.settings/org.eclipse.jdt.core.prefs |  8 ++
 client/Californium.properties               | 59 ++++++++++++++
 client/pom.xml                              | 85 +++++++++++++++++++++
 client/src/netpp/client/Main.java           | 59 ++++++++++++++
 7 files changed, 256 insertions(+)
 create mode 100644 client/.classpath
 create mode 100644 client/.gitignore
 create mode 100644 client/.project
 create mode 100644 client/.settings/org.eclipse.jdt.core.prefs
 create mode 100644 client/Californium.properties
 create mode 100644 client/pom.xml
 create mode 100644 client/src/netpp/client/Main.java

diff --git a/client/.classpath b/client/.classpath
new file mode 100644
index 0000000..149cb3c
--- /dev/null
+++ b/client/.classpath
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="target/classes" path="src">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>
diff --git a/client/.gitignore b/client/.gitignore
new file mode 100644
index 0000000..09e3bc9
--- /dev/null
+++ b/client/.gitignore
@@ -0,0 +1,2 @@
+/bin/
+/target/
diff --git a/client/.project b/client/.project
new file mode 100644
index 0000000..3ee038d
--- /dev/null
+++ b/client/.project
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>client</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+	</natures>
+</projectDescription>
diff --git a/client/.settings/org.eclipse.jdt.core.prefs b/client/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000..2f5cc74
--- /dev/null
+++ b/client/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,8 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
+org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.source=1.8
diff --git a/client/Californium.properties b/client/Californium.properties
new file mode 100644
index 0000000..2098388
--- /dev/null
+++ b/client/Californium.properties
@@ -0,0 +1,59 @@
+#Californium CoAP Properties file
+#Sat Nov 16 16:27:06 CET 2019
+HEALTH_STATUS_INTERVAL=0
+ACK_TIMEOUT=2000
+UDP_CONNECTOR_SEND_BUFFER=0
+ACK_TIMEOUT_SCALE=2.0
+HTTP_SERVER_SOCKET_TIMEOUT=100000
+USE_RANDOM_MID_START=true
+BLOCKWISE_STRICT_BLOCK2_OPTION=false
+MAX_ACTIVE_PEERS=150000
+PROTOCOL_STAGE_THREAD_COUNT=4
+BLOCKWISE_STATUS_LIFETIME=300000
+MAX_RESOURCE_BODY_SIZE=8192
+HTTP_CACHE_SIZE=32
+UDP_CONNECTOR_DATAGRAM_SIZE=2048
+UDP_CONNECTOR_RECEIVE_BUFFER=0
+DTLS_CONNECTION_ID_NODE_ID=
+MAX_TRANSMIT_WAIT=93000
+NOTIFICATION_REREGISTRATION_BACKOFF=2000
+DEDUPLICATOR=DEDUPLICATOR_MARK_AND_SWEEP
+COAP_PORT=5683
+MID_TACKER=GROUPED
+COAP_SECURE_PORT=5684
+NETWORK_STAGE_RECEIVER_THREAD_COUNT=1
+HTTP_CACHE_RESPONSE_MAX_AGE=86400
+MULTICAST_BASE_MID=65000
+HTTP_SERVER_SOCKET_BUFFER_SIZE=8192
+EXCHANGE_LIFETIME=247000
+TLS_HANDSHAKE_TIMEOUT=10000
+DEDUPLICATOR_AUTO_REPLACE=true
+TCP_CONNECTION_IDLE_TIMEOUT=10
+LEISURE=5000
+HTTP_PORT=8080
+DTLS_CONNECTION_ID_LENGTH=
+NOTIFICATION_CHECK_INTERVAL=86400000
+CONGESTION_CONTROL_ALGORITHM=Cocoa
+RESPONSE_MATCHING=STRICT
+MID_TRACKER_GROUPS=16
+TOKEN_SIZE_LIMIT=8
+NETWORK_STAGE_SENDER_THREAD_COUNT=1
+TCP_WORKER_THREADS=1
+SECURE_SESSION_TIMEOUT=86400
+TCP_CONNECT_TIMEOUT=10000
+MAX_RETRANSMIT=4
+MAX_MESSAGE_SIZE=1024
+ACK_RANDOM_FACTOR=1.5
+NSTART=1
+MAX_LATENCY=100000
+PROBING_RATE=1.0
+USE_CONGESTION_CONTROL=false
+MAX_SERVER_RESPONSE_DELAY=250000
+CROP_ROTATION_PERIOD=247000
+MAX_PEER_INACTIVITY_PERIOD=600
+UDP_CONNECTOR_OUT_CAPACITY=2147483647
+DTLS_AUTO_RESUME_TIMEOUT=30000
+PREFERRED_BLOCK_SIZE=512
+NON_LIFETIME=145000
+NOTIFICATION_CHECK_INTERVAL_COUNT=100
+MARK_AND_SWEEP_INTERVAL=10000
diff --git a/client/pom.xml b/client/pom.xml
new file mode 100644
index 0000000..ea8d6be
--- /dev/null
+++ b/client/pom.xml
@@ -0,0 +1,85 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>it.unipi.ing.ce.netpp</groupId>
+  <artifactId>client</artifactId>
+  <version>2019.11.0</version>
+
+  <dependencies>
+
+    <dependency>
+        <groupId>org.eclipse.californium</groupId>
+        <artifactId>californium-core</artifactId>
+        <version>2.0.0-M18</version>
+    </dependency>
+    <dependency>
+        <groupId>javax.json</groupId>
+        <artifactId>javax.json-api</artifactId>
+        <version>1.1.4</version>
+    </dependency>
+
+    <dependency>
+        <groupId>org.glassfish</groupId>
+        <artifactId>javax.json</artifactId>
+        <version>1.1</version>
+    </dependency>
+
+  </dependencies>
+
+  <build>
+      <sourceDirectory>src</sourceDirectory>
+
+    <plugins>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-eclipse-plugin</artifactId>
+            <version>2.9</version>
+            <configuration>
+                <downloadSources>true</downloadSources>
+                <downloadJavadocs>false</downloadJavadocs>
+            </configuration>
+        </plugin>
+
+    <!-- Set a compiler level -->
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.8.0</version>
+            <configuration>
+                <source>1.8</source>
+                <target>1.8</target>
+            </configuration>
+        </plugin>
+
+    <!-- Maven Assembly Plugin -->
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-assembly-plugin</artifactId>
+            <version>2.4.1</version>
+            <configuration>
+                <!-- get all project dependencies -->
+                <descriptorRefs>
+                <descriptorRef>jar-with-dependencies</descriptorRef>
+                </descriptorRefs>
+                <!-- MainClass in mainfest make a executable jar -->
+                <archive>
+                    <manifest>
+                        <mainClass>netpp.client.Main</mainClass>
+                    </manifest>
+                </archive>
+            </configuration>
+            <executions>
+                <execution>
+                    <id>make-assembly</id>
+                        <!-- bind to the packaging phase -->
+                        <phase>package</phase>
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                </execution>
+            </executions>
+        </plugin>
+    </plugins>
+</build>
+
+</project>
+
diff --git a/client/src/netpp/client/Main.java b/client/src/netpp/client/Main.java
new file mode 100644
index 0000000..0811ce5
--- /dev/null
+++ b/client/src/netpp/client/Main.java
@@ -0,0 +1,59 @@
+package netpp.client;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+import javax.json.JsonReader;
+
+import org.eclipse.californium.core.CoapClient;
+import org.eclipse.californium.core.CoapResponse;
+import org.eclipse.californium.elements.exception.ConnectorException;
+
+public class Main {
+
+	public static void main(String[] args) {
+		if (args.length < 1) {
+			System.err.println("[F] Bad parameters");
+			System.err.println("Usage: ");
+			System.err.println("$ exe <url>");
+			System.err.println();
+			System.err.println("Example:");
+			System.err.println("$ exe coap://[2001:db8::0]/urn:it.unipi.ing.ce.netpp:c00000003");
+			System.exit(1);
+		}
+		
+		/* getting parameter from CLI */
+		final String url = args[0];
+		
+		/* subscribe to every node specified */
+		System.err.println("[I] GET " + url);
+		
+		CoapClient client = new CoapClient(url);
+		CoapResponse response = null;
+		try {
+			response = client.get();
+		} catch (ConnectorException | IOException e) {
+			e.printStackTrace();
+			System.exit(1);
+		}
+		
+		/* parse SenML JSON */
+		byte[] payload = response.getPayload();
+		ByteArrayInputStream bis = new ByteArrayInputStream(payload);
+		JsonReader reader = Json.createReader(bis);
+		JsonArray senml = reader.readArray();
+		JsonObject measurement = senml.getJsonObject(0);
+		String resourceName = measurement.getString("n");
+		int resourceValue = measurement.getInt("v");
+		
+		/* output result */
+		System.out.println("Read Resource");
+		System.out.println("name:  " + resourceName);
+		System.out.println("value: " + resourceValue);
+		
+		System.exit(0);
+	}
+}