using maven aether for plugin installation

scm-webapp/src/main/java/sonia/scm/boot/BootstrapListener.java

@@ -47,12 +47,19 @@ import java.io.File;
 import java.io.FilenameFilter;
 import java.io.IOException;
 
+import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
 
+import java.util.LinkedList;
+import java.util.List;
+import java.util.logging.Level;
+
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;
 
+import javax.xml.bind.JAXB;
+
 /**
  *
  * @author Sebastian Sdorra
@@ -63,6 +70,9 @@ public class BootstrapListener implements ServletContextListener
   /** Field description */
   public static final String LISTENER = "sonia.scm.ScmContextListener";
 
+  /** Field description */
+  public static final String PLUGIN_CLASSPATHFILE = "classpath.xml";
+
   /** Field description */
   public static final String PLUGIN_DIRECTORY = "plugins";
 
@@ -102,32 +112,23 @@ public class BootstrapListener implements ServletContextListener
 
     if (pluginDirectory.exists())
     {
-      try
-      {
-        File[] jarFiles = pluginDirectory.listFiles(new JarFilenameFilter());
+      File classpathFile = new File(pluginDirectory, PLUGIN_CLASSPATHFILE);
 
-        if (Util.isNotEmpty(jarFiles))
+      if (classpathFile.exists())
+      {
+        try
         {
-          int size = jarFiles.length;
-          URL[] urls = new URL[size];
+          Classpath classpath = JAXB.unmarshal(classpathFile, Classpath.class);
 
-          for (int i = 0; i < size; i++)
+          if (classpath != null)
           {
-            urls[i] = jarFiles[i].toURI().toURL();
-
-            if (logger.isDebugEnabled())
-            {
-              logger.debug("added jar {} to classpath",
-                           urls[i].toExternalForm());
-            }
+            classLoader = createClassLoader(pluginDirectory, classpath);
           }
-
-          classLoader = new URLClassLoader(urls, getParentClassLoader());
         }
-      }
-      catch (IOException ex)
-      {
-        logger.error(ex.getMessage(), ex);
+        catch (Exception ex)
+        {
+          logger.error(ex.getMessage(), ex);
+        }
       }
     }
 
@@ -150,6 +151,51 @@ public class BootstrapListener implements ServletContextListener
     scmContextListener.contextInitialized(sce);
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param pluginDirectory
+   * @param classpath
+   *
+   * @return
+   */
+  private ClassLoader createClassLoader(File pluginDirectory,
+          Classpath classpath)
+  {
+    List<URL> classpathURLs = new LinkedList<URL>();
+
+    for (String path : classpath)
+    {
+      if (path.startsWith("/"))
+      {
+        path = path.substring(1);
+      }
+
+      File file = new File(pluginDirectory, path);
+
+      if (file.exists())
+      {
+        try
+        {
+          if (logger.isDebugEnabled())
+          {
+            logger.debug("append {} to classpath", file.getPath());
+          }
+
+          classpathURLs.add(file.toURI().toURL());
+        }
+        catch (MalformedURLException ex)
+        {
+          logger.error(ex.getMessage(), ex);
+        }
+      }
+    }
+
+    return new URLClassLoader(classpathURLs.toArray(new URL[0]),
+                              getParentClassLoader());
+  }
+
   //~--- get methods ----------------------------------------------------------
 
   /**
@@ -170,35 +216,6 @@ public class BootstrapListener implements ServletContextListener
     return classLoader;
   }
 
-  //~--- inner classes --------------------------------------------------------
-
-  /**
-   * Class description
-   *
-   *
-   * @version        Enter version here..., 2010-12-09
-   * @author         Sebastian Sdorra
-   */
-  private static class JarFilenameFilter implements FilenameFilter
-  {
-
-    /**
-     * Method description
-     *
-     *
-     * @param file
-     * @param name
-     *
-     * @return
-     */
-    @Override
-    public boolean accept(File file, String name)
-    {
-      return name.endsWith(".jar");
-    }
-  }
-
-
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */

scm-webapp/src/main/java/sonia/scm/boot/Classpath.java

@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2010, 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.boot;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@XmlRootElement(name = "classpath")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class Classpath implements Iterable<String>
+{
+
+  /**
+   * Constructs ...
+   *
+   */
+  public Classpath() {}
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param path
+   */
+  public void add(String path)
+  {
+    pathSet.add(path);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param file
+   */
+  public void add(File file)
+  {
+    pathSet.add(file.getPath());
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Iterator<String> iterator()
+  {
+    return pathSet.iterator();
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public Set<String> getPathSet()
+  {
+    return pathSet;
+  }
+
+  //~--- set methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param pathSet
+   */
+  public void setPathSet(Set<String> pathSet)
+  {
+    this.pathSet = pathSet;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  @XmlElement(name = "path")
+  private Set<String> pathSet = new LinkedHashSet<String>();
+}