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build.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="ChatApplication" default="default" basedir=".">
+    <description>Builds, tests, and runs the project ChatApplication.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar:                  JAR building
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="ChatApplication-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+</project>

manifest.mf

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+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

nbproject/genfiles.properties

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+build.xml.data.CRC32=aa54c487
+build.xml.script.CRC32=fa8e3906
+build.xml.stylesheet.CRC32=f85dc8f2@1.97.0.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=aa54c487
+nbproject/build-impl.xml.script.CRC32=b6dc6de5
+nbproject/build-impl.xml.stylesheet.CRC32=d549e5cc@1.97.0.48

nbproject/project.properties

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+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processor.options=
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/ChatApplication.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+dist.jlink.dir=${dist.dir}/jlink
+dist.jlink.output=${dist.jlink.dir}/ChatApplication
+excludes=
+includes=**
+jar.compress=false
+javac.classpath=
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=11
+javac.target=11
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+# The jlink additional root modules to resolve
+jlink.additionalmodules=
+# The jlink additional command line parameters
+jlink.additionalparam=
+jlink.launcher=true
+jlink.launcher.name=ChatApplication
+main.class=server.MainServer
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=default_platform
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+src.dir=src
+test.src.dir=test

nbproject/project.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>ChatApplication</name>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

src/client/MainClient.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package client;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Hauptklasse des Clients
+ * @version 0.0.1
+ * @author eichehome
+ */
+public class MainClient {
+
+    static Socket server = null;
+    static PrintWriter pr = null;
+    static BufferedReader bf = null;
+    static InputStreamReader in = null;
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        try {
+            server = new Socket("localhost", 1236);
+
+            pr = new PrintWriter(server.getOutputStream());
+            pr.println("is it working?");
+            pr.flush();
+
+            in = new InputStreamReader(server.getInputStream());
+            bf = new BufferedReader(in);
+            String str = bf.readLine();
+            System.out.println("server: " + str);
+            try {
+                System.out.println("Sleepin for 5 seconds");
+                Thread.sleep(10000);
+            } catch (InterruptedException e) {
+                System.out.println("Thread is interrupted");
+            }
+        } catch (IOException e) {
+            System.err.println("Fehler: " + e);
+        } finally {
+            if (in != null) {
+                try {
+                    in.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+            if (bf != null) {
+                try {
+                    bf.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+            if (pr != null) {
+                pr.close();
+            }
+            if (server != null) {
+                try {
+                    server.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+        }
+    }
+}

src/client/MainClient1.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package client;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Hauptklasse des Clients
+ * @version 0.0.1
+ * @author eichehome
+ */
+public class MainClient1 {
+
+    static Socket server = null;
+    static PrintWriter pr = null;
+    static BufferedReader bf = null;
+    static InputStreamReader in = null;
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        try {
+            server = new Socket("localhost", 1236);
+
+            pr = new PrintWriter(server.getOutputStream());
+            pr.println("is it working?");
+            pr.flush();
+
+            in = new InputStreamReader(server.getInputStream());
+            bf = new BufferedReader(in);
+            String str = bf.readLine();
+            System.out.println("server: " + str);
+        } catch (IOException e) {
+            System.err.println("Fehler: " + e);
+        } finally {
+            if (in != null) {
+                try {
+                    in.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+            if (bf != null) {
+                try {
+                    bf.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+            if (pr != null) {
+                pr.close();
+            }
+            if (server != null) {
+                try {
+                    server.close();
+                } catch (IOException e) {
+                    System.err.println("Fehler: " + e);
+                }
+            }
+        }
+    }
+}

src/server/ClientMessageDistributorThread.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package server;
+
+import java.net.Socket;
+
+/**
+ *
+ * @author eichehome
+ */
+public class ClientMessageDistributorThread implements Runnable {
+
+    /**
+     * Verzeichniss der Threads, die die Clients überwachen
+     */
+    private Socket[] clientThreads = null;
+    /**
+     * Puffer der Nachrichten
+     */
+    private Object[] messages = null;
+
+    public void run() {
+
+    }
+
+    public void ClientMessageDistributorThread(Socket s) {
+
+    }
+
+    public void pushMessage(Object message) {
+        Object[] temp = new Object[messages.length + 1];
+        temp[temp.length -1] = message;
+        messages = temp;
+    }
+
+    public Object popMessage() {
+        Object[] temp = new Object[messages.length - 1];
+        Object message = messages[0];
+        for (int i = 1; i < messages.length; i++) {
+            temp[i - 1] = messages[i];
+        }
+        messages = temp;
+    }
+}

src/server/FifoPipe.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package server;
+
+/**
+ *
+ * @author eichehome
+ */
+public class FifoPipe {
+    
+    private PipeElement firstElement;
+    private PipeElement lastElement;
+    
+    public FifoPipe() {
+        
+    }
+    
+    public queuElement(Object element) {
+        
+    }
+    
+}

src/server/MainServer.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package server;
+
+import java.io.*;
+import java.net.*;
+import java.util.concurrent.ExecutionException;
+
+/**
+ * Hauptklasse des Servers
+ *
+ * @version 0.0.1
+ * @author eichehome
+ */
+public class MainServer {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        try {
+            ServerSocket serverSocket = new ServerSocket(1236);
+            ClientMessageDistributorThread messageDistributor = new ClientMessageDistributorThread();
+            for (int i = 0; i < 3; i++) {
+                Socket client = serverSocket.accept();
+                System.out.println("client connected");
+                new ServerHandelClientsThread(client, messageDistributor).start();
+
+            }
+        } catch (Exception e) {
+            System.err.println("Fehler: " + e);
+        }
+    }
+
+}

src/server/PipeElement.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package server;
+
+/**
+ *
+ * @author eichehome
+ */
+public class PipeElement {
+    
+    private PipeElement naechster;
+    private Object data;
+    
+    public void setNextElement(Obj)
+    
+}

src/server/ServerHandelClientsThread.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package server;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ *
+ * @author eichehome
+ */
+public class ServerHandelClientsThread extends Thread {
+
+    private Socket clientSocket = null;
+    private ClientMessageDistributorThread messageDistributor = null;
+
+    public void run() {
+        PrintWriter pr = new PrintWriter(clientSocket.getOutputStream(), true);
+        InputStreamReader in = new InputStreamReader(clientSocket.getInputStream());
+        BufferedReader bf = new BufferedReader(in);
+    }
+
+    public ServerHandelClientsThread(Socket socket, ClientMessageDistributorThread distributor) {
+        clientSocket = socket;
+        messageDistributor = distributor;
+    }
+}

src/server/temp

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+https://sql-island.informatik.uni-kl.de
+
+SELECT * FROM BEWOHNER
+SELECT * FROM bewohner WHERE beruf = 'Metzger'
+SELECT * FROM BEWOHNER WHERE status='friedlich'
+SELECT * FROM BEWOHNER WHERE status='friedlich' AND beruf='Waffenschmied'
+SELECT * FROM BEWOHNER WHERE status='friedlich' AND beruf LIKE '%schmied'
+SELECT bewohnernr FROM BEWOHNER WHERE name='Fremder'
+SELECT gold FROM BEWOHNER WHERE name='Fremder'
+SELECT * FROM GEGENSTAND WHERE besitzer IS NULL
+#UPDATE gegenstand SET besitzer = 20 WHERE gegenstand = 'Kaffeetasse'
+UPDATE gegenstand SET besitzer = 20 WHERE besitzer IS NULL
+SELECT * FROM GEGENSTAND WHERE besitzer = 20
+SELECT * FROM BEWOHNER WHERE (beruf = 'Haendler' OR beruf = 'Kaufmann' ) AND status = 'friedlich'
+UPDATE gegenstand SET besitzer = 15 WHERE besitzer = 20 AND (gegenstand = 'Ring' OR gegenstand = 'Teekanne')
+UPDATE BEWOHNER SET name = 'Eiche Home' WHERE bewohnernr = 20
+SELECT * FROM bewohner WHERE beruf = 'Baecker' ORDER BY gold desc
+SELECT * FROM bewohner WHERE beruf = 'Pilot'
+SELECT dorf.name FROM dorf, bewohner WHERE dorf.dorfnr = bewohner.dorfnr AND bewohner.name = 'Dirty Dieter'
+SELECT bewohner.name FROM dorf,bewohner WHERE dorf.name = 'Zwiebelhausen' AND bewohner.bewohnernr = dorf.haeuptling
+#SELECT COUNT(*) FROM bewohner, dorf WHERE dorf.dorfnr = bewohner.dorfnr AND dorf.name = 'Zwiebelhausen'
+SELECT COUNT(*) FROM dorf,bewohner WHERE dorf.name = 'Zwiebelhausen' AND bewohner.dorfnr = dorf.dorfnr AND geschlecht = 'w'
+SELECT bewohner.name FROM dorf,bewohner WHERE dorf.name = 'Zwiebelhausen' AND bewohner.dorfnr = dorf.dorfnr AND geschlecht = 'w'
+#SELECT SUM(bewohner.gold) FROM bewohner, dorf WHERE dorf.dorfnr = bewohner.dorfnr AND dorf.name = 'Gurkendorf'
+SELECT SUM(gold) FROM bewohner WHERE beruf = 'Baecker' OR beruf = 'Haendler' OR beruf = 'Kaufmann'
+#SELECT beruf, SUM(bewohner.gold), AVG(bewohner.gold) FROM bewohner GROUP BY beruf ORDER BY AVG(bewohner.gold)
+SELECT status, AVG(gold) FROM bewohner GROUP BY status ORDER BY AVG(gold)