setting up the basic logic

.classpath

@@ -13,13 +13,14 @@
 	</classpathentry>
 	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
 		<attributes>
+			<attribute name="test" value="true"/>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="test" 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="module" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
@@ -30,19 +31,19 @@
 	</classpathentry>
 	<classpathentry kind="src" path="target/generated-sources/annotations">
 		<attributes>
+			<attribute name="ignore_optional_problems" value="true"/>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="ignore_optional_problems" value="true"/>
 			<attribute name="m2e-apt" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="src" output="target/test-classes" path="target/generated-test-sources/test-annotations">
 		<attributes>
+			<attribute name="ignore_optional_problems" value="true"/>
+			<attribute name="test" value="true"/>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="ignore_optional_problems" value="true"/>
 			<attribute name="m2e-apt" value="true"/>
-			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>

.gitignore

@@ -0,0 +1 @@
+./*.py

.settings/org.eclipse.jdt.core.prefs

@@ -1,10 +1,13 @@
 eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=generate
 org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
 org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.processAnnotations=enabled
-org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.release=enabled
 org.eclipse.jdt.core.compiler.source=1.8

script.py

@@ -0,0 +1 @@
+print 12+23

src/main/java/com/oracle/challenge/ws/NoteBookWs.java

@@ -1,5 +1,11 @@
 package com.oracle.challenge.ws;
 
+import java.io.BufferedWriter;
+import java.io.ByteArrayOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
 import javax.validation.Valid;
 
 import org.springframework.http.HttpStatus;
@@ -12,15 +18,45 @@
 import com.oracle.challenge.model.NoteBookInput;
 import com.oracle.challenge.model.NoteBookOutput;
 
-
 @Controller
 public class NoteBookWs {
-
-	@RequestMapping(value = "/execute", produces = { "application/json;charset=utf-8" }, consumes = {
-	"application/json;charset=utf-8" }, method = RequestMethod.POST)
+
+	@RequestMapping(value = "/execute", 
+					produces = { "application/json;charset=utf-8" }, 
+					consumes = { "application/json;charset=utf-8" }, 
+					method = RequestMethod.POST)
 	ResponseEntity<NoteBookOutput> executeScript(@Valid @RequestBody NoteBookInput noteBookInput) {
 		NoteBookOutput noteBookOutput = new NoteBookOutput();
-		noteBookOutput.setResult("123"+noteBookInput.getCode());
+		try {
+			//script that will hold all inputs, and gets fed with new input when ever the endpoint is called
+			BufferedWriter out = new BufferedWriter(new FileWriter("script.py"));
+			out.write("print "+noteBookInput.getCode());
+			out.close();
+
+			Process process = null;
+
+			//script execution
+			if(System.getProperty("os.name").toLowerCase().indexOf("windows") >= 0) {
+				process = Runtime.getRuntime().exec(String.format("cmd.exe /c python script.py"));
+			}
+			else {
+				//other os	
+			}
+
+			//preparing result of script execution to be binded in the output
+			ByteArrayOutputStream result = new ByteArrayOutputStream();
+			byte[] buffer = new byte[1024];
+			int length;
+			while ((length = process.getInputStream().read(buffer)) != -1) {
+				result.write(buffer, 0, length);
+			}
+
+			noteBookOutput.setResult(result.toString().replaceAll("(\\r|\\n)", ""));
+		} catch (IOException e) {
+			e.printStackTrace();
+			System.out.println(e.getMessage());
+		}
+
 		return new ResponseEntity<NoteBookOutput>(noteBookOutput, HttpStatus.CREATED);
 	}
 

target/classes/META-INF/MANIFEST.MF

@@ -1,6 +1,6 @@
 Manifest-Version: 1.0
+Build-Jdk-Spec: 11
 Implementation-Title: BackendNoteBookChallenge
 Implementation-Version: 0.0.1-SNAPSHOT
-Build-Jdk-Spec: 1.8
 Created-By: Maven Integration for Eclipse
 

target/classes/META-INF/maven/com.oracle/BackendNoteBookChallenge/pom.properties

@@ -1,7 +1,7 @@
 #Generated by Maven Integration for Eclipse
-#Wed Feb 12 10:17:21 WET 2020
-version=0.0.1-SNAPSHOT
-groupId=com.oracle
+#Wed Feb 12 23:16:14 CET 2020
+m2e.projectLocation=D\:\\shadrunWorks\\oracleChallenge\\BackendNoteBookChallenge
 m2e.projectName=BackendNoteBookChallenge
-m2e.projectLocation=C\:\\Users\\arazik\\Downloads\\AnassGithub\\BackendNoteBookChallenge
+groupId=com.oracle
 artifactId=BackendNoteBookChallenge
+version=0.0.1-SNAPSHOT