new plugin structure

scm-webapp/src/main/java/sonia/scm/plugin/EmptyWebResourceLoader.java

@@ -0,0 +1,61 @@
+/**
+ * Copyright (c) 2014, Sebastian Sdorra All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer. 2. Redistributions in
+ * binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution. 3. Neither the name of SCM-Manager;
+ * nor the names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.plugin;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.net.URL;
+
+/**
+ * This {@link WebResourceLoader} is used, if the plugin does not contain a
+ * webapp directory.
+ *
+ * @author Sebastian Sdorra
+ * @since 2.0.0
+ */
+public class EmptyWebResourceLoader implements WebResourceLoader
+{
+
+  /**
+   * Returns always {@code null}.
+   *
+   *
+   * @param path resource path
+   *
+   * @return {@code null}
+   */
+  @Override
+  public URL getResource(String path)
+  {
+    return null;
+  }
+}

scm-webapp/src/main/java/sonia/scm/plugin/PluginProcessor.java

@@ -86,14 +86,11 @@ public final class PluginProcessor
   /** Field description */
   private static final String DIRECTORY_INSTALLED = ".installed";
 
-  /** Field description */
-  private static final String DIRECTORY_LINK = ".link";
-
   /** Field description */
   private static final String DIRECTORY_METAINF = "META-INF";
 
   /** Field description */
-  private static final String DIRECTORY_WEBINF = "WEB-INF";
+  private static final String DIRECTORY_WEBAPP = "webapp";
 
   /** Field description */
   private static final String EXTENSION_PLUGIN = ".smp";
@@ -350,32 +347,29 @@ public final class PluginProcessor
   {
     List<URL> urls = new ArrayList<>();
 
-    Path metaDir = smp.getPath().resolve(DIRECTORY_METAINF);
+    Path directory = smp.getPath();
+
+    Path metaDir = directory.resolve(DIRECTORY_METAINF);
 
     if (!Files.exists(metaDir))
     {
       throw new FileNotFoundException("could not find META-INF directory");
     }
 
-    Path webinfDir = smp.getPath().resolve(DIRECTORY_WEBINF);
+    Path classesDir = directory.resolve(DIRECTORY_CLASSES);
 
-    if (Files.exists(webinfDir))
+    if (Files.exists(classesDir))
     {
-      Path classesDir = webinfDir.resolve(DIRECTORY_CLASSES);
+      urls.add(classesDir.toUri().toURL());
+    }
 
-      if (Files.exists(classesDir))
+    Path libDir = directory.resolve(DIRECTORY_DEPENDENCIES);
+
+    if (Files.exists(libDir))
+    {
+      for (Path f : Files.newDirectoryStream(libDir, GLOB_JAR))
       {
-        urls.add(classesDir.toUri().toURL());
-      }
-
-      Path libDir = webinfDir.resolve(DIRECTORY_DEPENDENCIES);
-
-      if (Files.exists(libDir))
-      {
-        for (Path f : Files.newDirectoryStream(libDir, GLOB_JAR))
-        {
-          urls.add(f.toUri().toURL());
-        }
+        urls.add(f.toUri().toURL());
       }
     }
 
@@ -500,8 +494,9 @@ public final class PluginProcessor
 
       Plugin plugin = createPlugin(cl, descriptor);
 
-      wrapper = new PluginWrapper(plugin, cl,
-        new PathWebResourceLoader(directory), directory);
+      WebResourceLoader resourceLoader = createWebResourceLoader(directory);
+
+      wrapper = new PluginWrapper(plugin, cl, resourceLoader, directory);
     }
     else
     {
@@ -535,6 +530,33 @@ public final class PluginProcessor
     return plugins;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param directory
+   *
+   * @return
+   */
+  private WebResourceLoader createWebResourceLoader(Path directory)
+  {
+    WebResourceLoader resourceLoader;
+    Path webapp = directory.resolve(DIRECTORY_WEBAPP);
+
+    if (Files.exists(webapp))
+    {
+      logger.debug("create WebResourceLoader for path {}", webapp);
+      resourceLoader = new PathWebResourceLoader(webapp);
+    }
+    else
+    {
+      logger.debug("create empty WebResourceLoader");
+      resourceLoader = new EmptyWebResourceLoader();
+    }
+
+    return resourceLoader;
+  }
+
   /**
    * Method description
    *