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cleaned and made ready task 1

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This commit is contained in:
Tinsae
2025-12-21 18:23:33 +01:00
parent 9687607237
commit dbe0192866
47 changed files with 236 additions and 405 deletions
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8
.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

6
.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

8
.idea/modules.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/DistributedSystems.iml" filepath="$PROJECT_DIR$/.idea/DistributedSystems.iml" />
</modules>
</component>
</project>

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.idea/vcs.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
</component>
</project>

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.vscode/settings.json vendored
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{ {
"java.compile.nullAnalysis.mode": "automatic", "java.compile.nullAnalysis.mode": "automatic",
"java.configuration.updateBuildConfiguration": "automatic" "java.configuration.updateBuildConfiguration": "automatic",
"java.debug.settings.onBuildFailureProceed": true
} }

1
week1_TinsaeGhilay/app/.gitignore vendored
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/build

37
week1_TinsaeGhilay/app/build.gradle
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plugins {
id 'com.android.application'
}
android {
compileSdk 31
defaultConfig {
applicationId "com.tgk.test"
minSdk 21
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

0
week1_TinsaeGhilay/app/libs/.gitkeep
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21
week1_TinsaeGhilay/app/proguard-rules.pro vendored
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# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

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week1_TinsaeGhilay/app/src/androidTest/java/com/tgk/test/ExampleInstrumentedTest.java
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package com.tgk.test;
import android.content.Context;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
assertEquals("com.tgk.test", appContext.getPackageName());
}
}

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week1_TinsaeGhilay/app/src/main/AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.tgk.test">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.Test" />
</manifest>

0
week1_TinsaeGhilay/app/src/main/java/com/tgk/test/.gitkeep
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week1_TinsaeGhilay/app/src/main/java/com/tgk/test/MainActivity.kt
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week1_TinsaeGhilay/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
<aapt:attr name="android:fillColor">
<gradient
android:endX="85.84757"
android:endY="92.4963"
android:startX="42.9492"
android:startY="49.59793"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>

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week1_TinsaeGhilay/app/src/main/res/drawable/ic_launcher_background.xml
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<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#3DDC84"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>

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week1_TinsaeGhilay/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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week1_TinsaeGhilay/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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week1_TinsaeGhilay/app/src/main/res/values-night/themes.xml
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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.Test" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_200</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/black</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_200</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

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week1_TinsaeGhilay/app/src/main/res/values/colors.xml
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@@ -1,10 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="purple_200">#FFBB86FC</color>
<color name="purple_500">#FF6200EE</color>
<color name="purple_700">#FF3700B3</color>
<color name="teal_200">#FF03DAC5</color>
<color name="teal_700">#FF018786</color>
<color name="black">#FF000000</color>
<color name="white">#FFFFFFFF</color>
</resources>

3
week1_TinsaeGhilay/app/src/main/res/values/strings.xml
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@@ -1,3 +0,0 @@
<resources>
<string name="app_name">Test</string>
</resources>

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week1_TinsaeGhilay/app/src/main/res/values/themes.xml
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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.Test" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_500</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

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week1_TinsaeGhilay/app/src/test/java/com/tgk/test/ExampleUnitTest.java
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package com.tgk.test;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* Example local unit test, which will execute on the development machine (host).
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
public class ExampleUnitTest {
@Test
public void addition_isCorrect() {
assertEquals(4, 2 + 2);
}
}

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week1_TinsaeGhilay/gradle/wrapper/gradle-wrapper.properties vendored
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#Mon Oct 18 19:16:13 CEST 2021
distributionBase=GRADLE_USER_HOME
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME

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week3_TinsaeGhilay/Task 1/README.md Normal file
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## Structure
The files are in 3 packages (directories)
1. **compute:** Package contains the interfaces. `Compute.java` and `Task.java`
2. **eingine:** package contains the server class `ComputeEngine.java`
3. **client:** package contains the client classes `Client.java` and `Operation.java`
## How to run
Each of the following commands are to be run in theit own terminal instance.
<br>i.e. open a new terminal and run the neccessary command.
1. First we compile the classeswith the output directory `out` so we have `srs` for source code and `out` for class files using the command
```bash
# this compiles any file in any directory under 'srs' in its oun parent directory under 'out'.
javac -d out $(find src -name "*.java")
```
2. Then we start the rmiregistry. since I am on linux, we do this as such:
```bash
# cd in to 'out' directory
cd out
# and start rmi registry server in the background
rmiregistry &
```
3. Start the server with the command
```bash
# this command runs the Server class 'ComputEngine'
java -cp out engine.ComputeEngine
```
4. And finally we start the client with the following command
```bash
# command runs the client class Client
java -cp out client.Client
```

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week3_TinsaeGhilay/Task 1/src/client/Client.java Normal file
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package client;
// Client/Client.java class represents the client that has to relay on the compute engine
// to perform tasks remotely.
// it needs the compute interface from compute package
import compute.Compute;
// it also needs those to access the registry,
// so it can get remote object reference of the server
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.util.Scanner;
public class Client {
private Client() {
}
public static void main(String[] args) {
// normally, the address of the server is passed here on the command line as an
// argument
// we get that address from args[0] if provided, else we use null for localhost
String host = (args.length < 1) ? null : args[0];
String name = "Compute";
try (Scanner scanner = new Scanner(System.in);) {
// get the registry from host(server)
Registry registry = LocateRegistry.getRegistry(host);
// look up the remote object by name in the registry
// stub is the a reference to the remote object
Compute stub = (Compute) registry.lookup(name);
// interactive client to perform operations
System.out.println("Connected to ComputeEngine. Type 'exit' to quit.");
while (true) {
// get user input for first number
System.out.println("Enter first number: ");
String input = scanner.next();
if (input.equalsIgnoreCase("exit")) {
System.out.println("Exiting client.");
break;
}
int a = validateNumber(input);
// get user input for second number
System.out.println("Enter second number: ");
input = scanner.next();
if (input.equalsIgnoreCase("exit")) {
System.out.println("Exiting client.");
break;
}
int b = validateNumber(input);
// get user input for operand
System.out.println("Enter operand (+, -, *, /, %): ");
input = scanner.next();
if (input.equalsIgnoreCase("exit")) {
System.out.println("Exiting client.");
break;
}
String operand = validateOperand(input);
// create operation task
Operation op = new Operation(a, b, operand);
// execute task remotely
int result = stub.executeTask(op);
System.out.println("Result: " + a + " " + operand + " " + b + " = " + result);
}
} catch (Exception e) {
System.err.println("Client exception: " + e.getMessage());
}
}
// simple validation methods. Because It is said
// "Be conservative on what you do, be liberal on what you accept from others"
// for int parsing
private static int validateNumber(String a) {
try {
return Integer.parseInt(a);
} catch (NumberFormatException e) {
System.err.println("Invalid number format: " + a + ". Defaulting to 0.");
return 0;
}
}
// For operand validation
private static String validateOperand(String op) {
switch (op) {
case "+":
case "-":
case "*":
case "/":
case "%":
return op;
default:
System.err.println("Invalid operand: " + op + ". Defaulting to '+'.");
return "+";
}
}
}

11
week3_TinsaeGhilay/Task 1/src/main/java/org/distributed/compute/Operation.java → week3_TinsaeGhilay/Task 1/src/client/Operation.java
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@@ -1,6 +1,12 @@
package org.distributed.engine;
public class Operation implements Task<Integer> { package client;
import java.io.Serializable;
import compute.Task;
public class Operation implements Task<Integer>, Serializable {
private static final long serialVersionUID = 1L;
int a, b; int a, b;
String operand; String operand;
@@ -12,6 +18,7 @@ public class Operation implements Task<Integer> {
} }
// do the operation
public Integer execute() { public Integer execute() {
return switch (this.operand) { return switch (this.operand) {
case "+" -> a + b; case "+" -> a + b;

4
week3_TinsaeGhilay/Task 1/src/main/java/org/distributed/compute/Compute.java → week3_TinsaeGhilay/Task 1/src/compute/Compute.java
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@@ -1,4 +1,4 @@
package org.distributed.engine; package compute;
import java.rmi.Remote; import java.rmi.Remote;
import java.rmi.RemoteException; import java.rmi.RemoteException;
@@ -8,5 +8,5 @@ import java.rmi.RemoteException;
public interface Compute extends Remote { public interface Compute extends Remote {
// needs a task interface // needs a task interface
int executeTask(Operation t) throws RemoteException; <T> T executeTask(Task<T> t) throws RemoteException;
} }

2
week3_TinsaeGhilay/Task 1/src/main/java/org/distributed/compute/Task.java → week3_TinsaeGhilay/Task 1/src/compute/Task.java
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@@ -1,4 +1,4 @@
package org.distributed.compute; package compute;
/** /**
* This interface is the type of parameter to the executeTask() method of the * This interface is the type of parameter to the executeTask() method of the

58
week3_TinsaeGhilay/Task 1/src/engine/ComputeEngine.java Normal file
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@@ -0,0 +1,58 @@
package engine;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;
// needs the compute and task interfaces from compute package
// define constructor for each
// and provide an implementation for each remote method in the remote interfaces
import compute.Compute;
import compute.Task;
/**
* The implementation of the Compute interface for the compute engine.
* it has to declare the remote class to be implemented (in this case Compute
* (implements it)
*/
public class ComputeEngine implements Compute {
public ComputeEngine() {
super();
}
@Override
public <T> T executeTask(Task<T> t) throws RemoteException {
return t.execute();
}
// entry
public static void main(String[] args) {
// the code provided on the tutorial was deprecated.
// so google led me to
// [this](https://docs.oracle.com/javase/8/docs/technotes/guides/rmi/hello/hello-world.html#create)
try {
String name = "Compute";
// create remote object that provides service (server).
Compute engine = new ComputeEngine();
// and export remote object to java RMI runtime
// so it may receive remote incoming calls
Compute stub = (Compute) UnicastRemoteObject.exportObject(engine, 0);
// the register the remote object with java RMI registry
// the registry is a name service that allows clients get a reference of remote
// objects
// once a remote object is registered, callers can look up the object by name
// and obtain its remote object reference
Registry registry = LocateRegistry.getRegistry();
registry.rebind(name, stub);
System.out.println("ComputeEngine bound");
} catch (Exception e) {
System.err.println("ComputeEngine exception: " + e.getMessage());
}
}
}

4
week3_TinsaeGhilay/Task 1/src/main/java/org/distributed/client/Client.java
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@@ -1,4 +0,0 @@
package org.distributed.client;
public class Client {
}

17
week3_TinsaeGhilay/Task 1/src/main/java/org/distributed/engine/ComputeEngine.java
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@@ -1,17 +0,0 @@
package org.distributed;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;
public class ComputeEngine implements Compute {
public ComputeEngine() {
super();
}
@Override
public <T> T executeTask(Task<T> t) throws RemoteException {
return t.execute();
}
}