added magic annotation for 3rd party deps

Author: Achal1607

nbcode/notebooks/src/org/netbeans/modules/nbcode/java/notebook/CodeEval.java

@@ -15,6 +15,7 @@
  */
 package org.netbeans.modules.nbcode.java.notebook;
 
+import java.io.File;
 import java.io.PrintWriter;
 import java.io.Writer;
 import java.util.ArrayList;
@@ -24,6 +25,7 @@
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.regex.Matcher;
@@ -43,6 +45,7 @@
 import org.netbeans.modules.java.lsp.server.notebook.NotebookCellExecutionProgressResultParams.Builder;
 import org.netbeans.modules.java.lsp.server.notebook.NotebookCellExecutionProgressResultParams.EXECUTION_STATUS;
 import org.netbeans.modules.java.lsp.server.protocol.NbCodeLanguageClient;
+import org.openide.util.Exceptions;
 import org.openide.util.NbBundle;
 import org.openide.util.RequestProcessor;
 
@@ -79,7 +82,10 @@ public class CodeEval {
     private final Map<String, RequestProcessor> codeExecMap = new ConcurrentHashMap<>();
     private final Map<String, List<CompletableFuture<Boolean>>> pendingTasks = new ConcurrentHashMap<>();
     private final Map<String, String> activeCellExecutionMapping = new ConcurrentHashMap<>();
-
+    // Define the pattern for @MavenGrab("g", "a", "v")
+    private static final Pattern MAVEN_GRAB_PATTERN = 
+        Pattern.compile("@MavenGrab\\s*\\(\\s*\"([^\"]+)\"\\s*,\\s*\"([^\"]+)\"\\s*,\\s*\"([^\"]+)\"\\s*\\)");
+    
     public static CodeEval getInstance() {
         return Singleton.instance;
     }
@@ -215,8 +221,9 @@ public void runCode(JShell jshell, String code) {
 
     public void runCode(JShell jshell, String code, String notebookId) {
         try {
+            String cleanCode = processMavenGrab(jshell, code, notebookId);
             SourceCodeAnalysis analysis = jshell.sourceCodeAnalysis();
-            List<String> snippets = NotebookUtils.getCodeSnippets(analysis, code);
+            List<String> snippets = NotebookUtils.getCodeSnippets(analysis, cleanCode);
 
             for (String snippet : snippets) {
                 for (SnippetEvent event : jshell.eval(snippet)) {
@@ -235,6 +242,41 @@ public void runCode(JShell jshell, String code, String notebookId) {
             throw new IllegalStateException(e);
         }
     }
+    
+    private String processMavenGrab(JShell jshell, String code, String notebookId) {
+        Matcher matcher = MAVEN_GRAB_PATTERN.matcher(code);
+        StringBuffer sb = new StringBuffer();
+
+        while (matcher.find()) {
+            try {
+                String groupId = matcher.group(1);
+                String artifactId = matcher.group(2);
+                String version = matcher.group(3);
+                String coords = String.format("%s:%s:%s", groupId, artifactId, version);
+                
+                Consumer<String> progressCallback = (msg) -> {
+                    if (notebookId != null) {
+                        sendNotification(notebookId, msg.getBytes(), EXECUTION_STATUS.EXECUTING, false);
+                    }
+                };
+                
+                List<File> jars = MagicCommandHandler.handler(coords, progressCallback);
+                
+                for (File jar : jars) {
+                    jshell.addToClasspath(jar.getAbsolutePath());
+                    String msg = "Jar added to classpath: " + jar.getName() + "\n";
+                    sendNotification(notebookId, msg.getBytes(), EXECUTION_STATUS.EXECUTING, false);
+                }
+                
+                matcher.appendReplacement(sb, "");
+            } catch (Exception ex) {
+                LOG.severe(() -> "Some error occurred while downloading artifacts" + ex.getMessage());
+                sendNotification(notebookId, "Some error occurred while downloading artifacts".getBytes(), EXECUTION_STATUS.EXECUTING, true);
+            }
+        }
+        matcher.appendTail(sb);
+        return sb.toString();
+    }
 
     private RequestProcessor getCodeExec(String notebookId) {
         return codeExecMap.computeIfAbsent(notebookId, (id) -> {

nbcode/notebooks/src/org/netbeans/modules/nbcode/java/notebook/MagicCommandHandler.java

@@ -0,0 +1,55 @@
+/*
+/*
+ * Copyright (c) 2025, Oracle and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.netbeans.modules.nbcode.java.notebook;
+
+import java.io.File;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.logging.Logger;
+import org.netbeans.modules.java.lsp.server.notebook.NotebookDependencyHandler;
+
+/**
+ *
+ * @author atalati
+ */
+public class MagicCommandHandler {
+
+    private static final Logger LOG = Logger.getLogger(MagicCommandHandler.class.getName());
+
+    public static List<File> handler(String coords, Consumer<String> progressCallback) throws Exception {
+        NotebookDependencyHandler handler = NotebookDependencyHandler.getInstance();
+        List<File> files;
+        if (progressCallback == null) {
+            files = handler.resolveTransitiveDependencies(coords);
+        } else {
+            files = handler.resolveTransitiveDependencies(coords, progressCallback);
+        }
+        
+        if (progressCallback == null) {
+            for (File f : files) {
+                LOG.info(() -> "Jar added to classpath: " + f.getName());
+            }
+        }
+
+        return files;
+    }
+
+    public static List<File> handler(String coords) throws Exception {
+        return handler(coords, null);
+    }
+
+}

nbcode/notebooks/src/org/netbeans/modules/nbcode/java/notebook/NotebookConfigs.java

@@ -154,7 +154,7 @@ private CompletableFuture<Void> initializeConfigs() {
     }
 
     public String getJdkVersion() {
-        return System.getProperty("java.version").split("\\.")[0];
+        return System.getProperty("java.version").split("[\\.\\-]")[0];
     }
 
     public void notebookConfigsChangeListener(JsonObject settings) {