Added feature about annotation for KissDispatcher.

src/fr/devinsy/kiss4web/dispatcher/KissDispatcher.java

@@ -21,6 +21,8 @@ package fr.devinsy.kiss4web.dispatcher;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import fr.devinsy.kiss4web.dispatcher.annotation.AnnotationHooks;
+import fr.devinsy.kiss4web.dispatcher.annotation.AnnotationUtils;
 import fr.devinsy.kiss4web.dispatcher.hooks.ErrorServlet;
 import fr.devinsy.kiss4web.dispatcher.hooks.Hook;
 import fr.devinsy.kiss4web.dispatcher.hooks.HookRegister;
@@ -49,6 +51,7 @@ public class KissDispatcher
 
     // Pathinfo -> Servlet.
     private ServletCache cache;
+    private AnnotationHooks annotationHooks;
 
     /**
      * Instantiates a new kiss dispatcher.
@@ -57,6 +60,17 @@ public class KissDispatcher
     {
         this.cache = new ServletCache();
         this.hookRegister = new HookRegister("Init").register(new InitHook());
+        this.annotationHooks = AnnotationUtils.getAnnotationHooks();
+    }
+
+    /**
+     * Gets the annotation hooks.
+     *
+     * @return the annotation hooks
+     */
+    public AnnotationHooks getAnnotationHooks()
+    {
+        return this.annotationHooks;
     }
 
     /**

src/fr/devinsy/kiss4web/dispatcher/annotation/AnnotationHook.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2024 Christian Pierre MOMON <christian@momon.org>
+ * 
+ * This file is part of Kiss4web.
+ * 
+ * Kiss4web is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Kiss4web is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Kiss4web.  If not, see <http://www.gnu.org/licenses/>
+ */
+package fr.devinsy.kiss4web.dispatcher.annotation;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import fr.devinsy.kiss4web.dispatcher.hooks.RewriteHook;
+
+/**
+ * The Class AnnotationHook.
+ */
+public class AnnotationHook extends RewriteHook
+{
+    private static Logger logger = LoggerFactory.getLogger(AnnotationHook.class);
+
+    /**
+     * Instantiates a new annotation hook.
+     *
+     * @param regex
+     *            the regex
+     * @param targetClassName
+     *            the target class name
+     */
+    public AnnotationHook(final String regex, final String targetClassName)
+    {
+        super(regex, targetClassName);
+    }
+}

src/fr/devinsy/kiss4web/dispatcher/annotation/AnnotationHooks.java

@@ -0,0 +1,37 @@
+/**
+ * Copyright (C) 2024 Christian Pierre MOMON
+ *
+ * This file is part of Kiss4web.
+ * 
+ * Kiss4web is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Kiss4web is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Kiss4web.  If not, see <http://www.gnu.org/licenses/>
+ */
+package fr.devinsy.kiss4web.dispatcher.annotation;
+
+import java.util.ArrayList;
+
+/**
+ * The Class AnnotationHooks.
+ */
+public class AnnotationHooks extends ArrayList<AnnotationHook>
+{
+    private static final long serialVersionUID = 1979896054785066359L;
+
+    /**
+     * Instantiates a new hook list.
+     */
+    public AnnotationHooks()
+    {
+        super();
+    }
+}

src/fr/devinsy/kiss4web/dispatcher/annotation/AnnotationUtils.java

@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2006-2024 Christian Pierre MOMON <christian@momon.org>
+ * 
+ * This file is part of Kiss4web.
+ * 
+ * Kiss4web is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Kiss4web is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Kiss4web.  If not, see <http://www.gnu.org/licenses/>
+ */
+package fr.devinsy.kiss4web.dispatcher.annotation;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import fr.devinsy.kiss4web.Kiss4webException;
+import jakarta.servlet.http.HttpServlet;
+
+/**
+ * The Class AnnotationUtils.
+ */
+public class AnnotationUtils
+{
+    private static final Logger logger = LoggerFactory.getLogger(AnnotationUtils.class);
+
+    /**
+     * Recursive method used to find all classes in a given directory and
+     * subdirs.
+     *
+     * @param directory
+     *            The base directory
+     * @param packageName
+     *            The package name for classes found inside the base directory
+     * @return The classes
+     * @throws ClassNotFoundException
+     */
+    private static List<Class> findClasses(final File directory, final String packageName) throws ClassNotFoundException
+    {
+        List<Class> result;
+
+        result = new ArrayList<Class>();
+        if (directory.exists())
+        {
+            File[] files = directory.listFiles();
+            for (File file : files)
+            {
+                if (file.isDirectory())
+                {
+                    assert !file.getName().contains(".");
+                    result.addAll(findClasses(file, packageName + "." + file.getName()));
+                }
+                else if (file.getName().endsWith(".class"))
+                {
+                    result.add(Class.forName(packageName + '.' + file.getName().substring(0, file.getName().length() - 6)));
+                }
+            }
+        }
+
+        //
+        return result;
+    }
+
+    /**
+     * Gets the annotation hooks.
+     *
+     * @return the annotation hooks
+     * @throws Kiss4webException
+     */
+    public static AnnotationHooks getAnnotationHooks()
+    {
+        AnnotationHooks result;
+
+        try
+        {
+            result = new AnnotationHooks();
+            Class[] classes = getClasses("website");
+            for (Class clazz : classes)
+            {
+                if (clazz.isAnnotationPresent(KissServlet.class))
+                {
+                    // System.out.println("==> " + clazz.getName() + " " +
+                    // clazz.getCanonicalName());
+                    // System.out.println("==> " + ((Class<HttpServlet>)
+                    // clazz).getAnnotation(KissServlet.class).value());
+
+                    String className = clazz.getCanonicalName();
+                    String regexPathInfo = ((Class<HttpServlet>) clazz).getAnnotation(KissServlet.class).value();
+
+                    AnnotationHook hook = new AnnotationHook(regexPathInfo, className);
+                    result.add(hook);
+                }
+            }
+        }
+        catch (ClassNotFoundException | IOException exception)
+        {
+            logger.error("Package website undefined, KissServlet annotations ignored.", exception);
+            result = new AnnotationHooks();
+        }
+
+        //
+        return result;
+    }
+
+    /**
+     * Gets the classes.
+     *
+     * @param packageName
+     *            the package name
+     * @return the classes
+     * @throws ClassNotFoundException
+     *             the class not found exception
+     * @throws IOException
+     *             Signals that an I/O exception has occurred.
+     */
+    private static Class[] getClasses(final String packageName) throws ClassNotFoundException, IOException
+    {
+        Class[] result;
+
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        assert classLoader != null;
+        String path = packageName.replace('.', '/');
+        Enumeration<URL> resources = classLoader.getResources(path);
+        List<File> dirs = new ArrayList<File>();
+        while (resources.hasMoreElements())
+        {
+            URL resource = resources.nextElement();
+            dirs.add(new File(resource.getFile()));
+        }
+        ArrayList<Class> classes = new ArrayList<Class>();
+        for (File directory : dirs)
+        {
+            classes.addAll(findClasses(directory, packageName));
+        }
+        result = classes.toArray(new Class[classes.size()]);
+
+        //
+        return result;
+    }
+}

src/fr/devinsy/kiss4web/dispatcher/annotation/KissServlet.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2024 Christian Pierre MOMON
+ * 
+ * This file is part of Kiss4web.
+ * 
+ * Kiss4web is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Kiss4web is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Kiss4web.  If not, see <http://www.gnu.org/licenses/>
+ */
+package fr.devinsy.kiss4web.dispatcher.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface KissServlet
+{
+    String value();
+}

src/fr/devinsy/kiss4web/dispatcher/annotation/KissServletProcessor.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2024 Christian Pierre MOMON
+ * 
+ * This file is part of Kiss4web.
+ * 
+ * Kiss4web is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Kiss4web is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Kiss4web.  If not, see <http://www.gnu.org/licenses/>
+ */
+package fr.devinsy.kiss4web.dispatcher.annotation;
+
+import java.util.Set;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.ProcessingEnvironment;
+import javax.annotation.processing.RoundEnvironment;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+
+@javax.annotation.processing.SupportedAnnotationTypes("fr.devinsy.kiss4web.dispatcher.annotation.KissServlet")
+@javax.annotation.processing.SupportedSourceVersion(javax.lang.model.SourceVersion.RELEASE_17)
+public class KissServletProcessor extends AbstractProcessor
+{
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public synchronized void init(final ProcessingEnvironment processingEnv)
+    {
+        super.init(processingEnv);
+        // Initialization code, if needed
+        System.out.println("=============== @INIT");
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean process(final Set<? extends TypeElement> annotations, final RoundEnvironment roundEnv)
+    {
+        for (TypeElement annotation : annotations)
+        {
+            // Find elements annotated with MyCustomAnnotation
+            for (Element element : roundEnv.getElementsAnnotatedWith(annotation))
+            {
+                // Process each element
+                this.processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Processing: " + element.getSimpleName());
+
+                // Your processing logic here
+                System.out.println("=============== YOOOOOOOOOOP");
+            }
+        }
+
+        //
+        return true; // No further processing of this annotation type
+    }
+}

src/fr/devinsy/kiss4web/dispatcher/hooks/HookRegister.java

@@ -18,6 +18,7 @@
  */
 package fr.devinsy.kiss4web.dispatcher.hooks;
 
+import java.util.Collection;
 import java.util.Iterator;
 
 import jakarta.servlet.ServletContext;
@@ -119,6 +120,25 @@ public class HookRegister
         return result;
     }
 
+    /**
+     * Register.
+     *
+     * @param hook
+     *            the hook
+     * @return the hook register
+     */
+    public HookRegister register(final Collection<? extends Hook> hooks)
+    {
+        HookRegister result;
+
+        this.hooks.addAll(hooks);
+
+        result = this;
+
+        //
+        return result;
+    }
+
     /**
      * Register.
      *

src/fr/devinsy/kiss4web/dispatcher/hooks/RewriteHook.java

@@ -95,4 +95,20 @@ public class RewriteHook extends HookCore
         //
         return result;
     }
+
+    /**
+     * To string.
+     *
+     * @return the string
+     */
+    @Override
+    public String toString()
+    {
+        String result;
+
+        result = this.pattern.toString() + " -> " + this.targetClassName;
+
+        //
+        return result;
+    }
 }