X - Fixes for API changes

src/main/java/com/r35157/nenjim/hubd/impl/ref/ContextManagerImpl.java

@@ -0,0 +1,30 @@
+package com.r35157.nenjim.hubd.impl.ref;
+
+import com.r35157.nenjim.hubd.ctx.Context;
+import com.r35157.nenjim.hubd.ctx.ContextManager;
+import com.r35157.nenjim.valuetypes.ctx.ContextId;
+
+import java.util.Set;
+
+public class ContextManagerImpl implements ContextManager {
+    public ContextManagerImpl() {
+        this.defaultContext = new Context();
+    }
+
+    @Override
+    public Context getDefault() {
+        return defaultContext;
+    }
+
+    @Override
+    public Context get(ContextId contextId) {
+        return null;
+    }
+
+    @Override
+    public Set<ContextId> getList() {
+        return Set.of();
+    }
+
+    private Context defaultContext;
+}

src/main/java/com/r35157/nenjim/hubd/impl/ref/JournalManagerImpl.java

@@ -0,0 +1,11 @@
+package com.r35157.nenjim.hubd.impl.ref;
+
+import com.r35157.nenjim.hubd.journal.Journal;
+import com.r35157.nenjim.hubd.journal.JournalManager;
+
+public class JournalManagerImpl implements JournalManager {
+    @Override
+    public Journal getJournal(String s) {
+        return new Journal(null, null, null);
+    }
+}

src/main/java/com/r35157/nenjim/hubd/impl/ref/Main.java

@@ -1,31 +1,55 @@
 package com.r35157.nenjim.hubd.impl.ref;
 
+import com.r35157.nenjim.hubd.ctx.Context;
 import com.r35157.nenjim.hubd.NenjimHub;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
+//import org.apache.logging.log4j.LogManager;
+//import org.apache.logging.log4j.Logger;
+import java.lang.management.ClassLoadingMXBean;
+import java.lang.management.ManagementFactory;
+
+import com.r35157.nenjim.hubd.ctx.ContextManager;
+import com.r35157.nenjim.hubd.journal.JournalManager;
+import com.r35157.nenjim.hubd.impl.ref.JournalManagerImpl;
+import java.nio.file.Files;
+import java.nio.file.Path;
 
 public class Main {
     static void main(String[] args) throws Exception {
-        try {
-            new Main(args).service();
-        } catch(Throwable t) {
-            log.error("Error initializing NenjimHub - " + t.getMessage());
-        }
+        new Main(args).start();
     }
 
     public Main(String[] args) throws Exception {
-        hub = new NenjimHubImpl();
+        /*hub = new NenjimHubImpl();
         log.info("Initializing NenjimHub...");
-        log.info("Ready!");
 
-        hub.noop();
-        Thread.sleep(Long.MAX_VALUE);
+        String classesCacheDirRaw = "~/.config/nenjim/cache/classes";
+        String classesCacheDir = (classesCacheDirRaw.startsWith("~/"))
+                ? System.getProperty("user.home") + classesCacheDirRaw.substring(1)
+                : classesCacheDirRaw;
+        Path pathToClassesCache = Path.of(classesCacheDir);
+
+        if(Files.exists(pathToClassesCache) == false) {
+            System.err.println("Cannot find '" + classesCacheDirRaw + "'");
+            System.exit(-1);
+        }*/
+
+        //System.out.println("Initializing initial NenjimClassLoader with default context...");
+        JournalManager journalManager = new JournalManagerImpl();
+        ContextManager contextManager = new ContextManagerImpl();
+        Context defaultContext = contextManager.getDefault();
+
+        NenjimClassLoader nenjimClassLoader = new NenjimClassLoader(journalManager, defaultContext);
+        Class<?> clazz = nenjimClassLoader.findClass("com.r35157.nenjim.hubd.impl.ref.NenjimHubImpl");
+
+        /*NenjimHub nenjimHub = null;
+        Context defaultContext = new Context();
+
+        Object instance = clazz.getDeclaredConstructor().newInstance();
+        NenjimKicker kicker = (NenjimKicker)instance;
+        */
+        int a = 0;
     }
 
-    private void service() throws Exception {
+    private void start() {
     }
-
-    private static final Logger log = LogManager.getLogger(Main.class);
-
-    private final NenjimHub hub;
 }

src/main/java/com/r35157/nenjim/hubd/impl/ref/NenjimClassLoader.java

@@ -0,0 +1,63 @@
+package com.r35157.nenjim.hubd.impl.ref;
+
+import com.r35157.libs.valuetypes.basic.SemanticVersion;
+import com.r35157.nenjim.hubd.ctx.Context;
+import com.r35157.nenjim.hubd.journal.Journal;
+import com.r35157.nenjim.hubd.journal.JournalManager;
+import com.r35157.nenjim.hubd.module.Release;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public final class NenjimClassLoader extends ClassLoader {
+    // TODO: Check protection - it is only main that can create a 'half' initialized classloader (and set the rest with setters afterwards)
+    NenjimClassLoader(JournalManager journalManager, Context context) {
+        this.journalManager = journalManager;
+        this.context = context;
+        //moduleVersion = new SemanticVersion(0, 1, 0);
+    }
+
+    private String getModuleName(String className) {
+        return className.substring(0, className.lastIndexOf("."));
+    }
+
+    @Override
+    protected Class<?> findClass(String className) throws ClassNotFoundException {
+        System.out.println("NenjimClassLoader asked to load '" + className + "'...");
+
+        // Check if we have any local version preferences configured for the associated Context.
+        SemanticVersion version = context.getVersion(className);
+
+        if(version == null) {
+            // No local configurations for a specific version has been configured for this package
+            // in this Context. Use the version the developer do recommend in the Journal.
+            String moduleName = getModuleName(className);
+            System.out.println("   Context (" + context.getName() + ") does NOT have any special version requirements for the module '" + moduleName + "' - use vendor recommendation from journal...");
+            Journal journal = journalManager.getJournal(moduleName);
+            Release release = journal.getRelease(version);
+            System.out.println("   Journal did recommend version '" + version + "' for the module '" + moduleName + "'");
+        }
+        System.out.println("Searching for class '" + className + "' in local Nenjim class cache...");
+        String relativePath = className.replace('.', '/') + ".class";
+        int a = 0;
+/*
+        Path classFile = classCacheRoot.resolve(relativePath);
+
+        if (!Files.exists(classFile)) {
+            throw new ClassNotFoundException("Class not found: " + className + " at " + classFile);
+        }
+
+        try {
+            byte[] classBytes = Files.readAllBytes(classFile);
+            return defineClass(className, classBytes, 0, classBytes.length);
+        } catch (IOException e) {
+            throw new ClassNotFoundException("Failed to load class: " + className, e);
+        }
+    */
+        return null;
+    }
+
+    private JournalManager journalManager;
+    private Context context;
+}

src/main/java/com/r35157/nenjim/hubd/impl/ref/NenjimHubImpl.java

@@ -1,7 +1,7 @@
 package com.r35157.nenjim.hubd.impl.ref;
 
 import com.r35157.nenjim.hubd.NenjimHub;
-import com.r35157.nenjim.hubd.NenjimJournal;
+import com.r35157.nenjim.hubd.journal.Journal;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.jetbrains.annotations.NotNull;
@@ -13,7 +13,7 @@ public class NenjimHubImpl implements NenjimHub {
     }
 
     @Override
-    public void monitorJournal(@NotNull NenjimJournal nenjimJournal) {
+    public void monitorJournal(@NotNull Journal journal) {
         log.warn("monitorJournal IS NOT IMPLEMENTED!");
     }