improve api

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

@@ -0,0 +1,186 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.plugin;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.util.Util;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public abstract class AbstractResourceServlet extends HttpServlet
+{
+
+  /** Field description */
+  public static final String DEFAULT_CHARSET = "UTF-8";
+
+  /** Field description */
+  private static final long serialVersionUID = -7703282364120349053L;
+
+  public AbstractResourceServlet()
+  {
+    System.out.println("CONSTRUCT !!!");
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+
+
+  /**
+   * Method description
+   *
+   *
+   * @param stream
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  protected abstract void appendResources(OutputStream stream)
+          throws ServletException, IOException;
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  protected abstract String getContentType();
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @throws ServletException
+   */
+  @Override
+  public void init() throws ServletException
+  {
+    System.out.println("INIT !!!");
+
+    ByteArrayOutputStream output = new ByteArrayOutputStream();
+
+    try
+    {
+      appendResources(output);
+    }
+    catch (IOException ex)
+    {
+      throw new ServletException(ex);
+    }
+    finally
+    {
+      Util.close(output);
+    }
+
+    this.content = output.toByteArray();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  @Override
+  protected void doGet(HttpServletRequest request, HttpServletResponse response)
+          throws ServletException, IOException
+  {
+    processRequest(request, response);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  @Override
+  protected void doPost(HttpServletRequest request,
+                        HttpServletResponse response)
+          throws ServletException, IOException
+  {
+    processRequest(request, response);
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  protected String getCharacterEncoding()
+  {
+    return DEFAULT_CHARSET;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  private void processRequest(HttpServletRequest request,
+                              HttpServletResponse response)
+          throws ServletException, IOException
+  {
+    System.out.println( "JA !!!" );
+
+    response.setCharacterEncoding(getCharacterEncoding());
+    response.setContentType(getContentType());
+    response.setContentLength(content.length);
+
+    OutputStream output = response.getOutputStream();
+
+    try
+    {
+      output.write(content);
+    }
+    finally
+    {
+      Util.close(output);
+    }
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private byte[] content;
+}

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

@@ -0,0 +1,123 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.plugin;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import sonia.scm.ScmWebPlugin;
+import sonia.scm.ScmWebPluginContext;
+import sonia.scm.util.Util;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import java.util.List;
+
+import javax.servlet.ServletException;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+public class ScriptResourceServlet extends AbstractResourceServlet
+{
+
+  /** Field description */
+  public static final String CONTENT_TYPE = "text/javascript";
+
+  /** Field description */
+  private static final long serialVersionUID = -5769146163848821050L;
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param stream
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  @Override
+  protected void appendResources(OutputStream stream)
+          throws ServletException, IOException
+  {
+    stream.write(
+        "function sayPluginHello(){ alert('Plugin Hello !'); }".concat(
+          System.getProperty("line.separator")).getBytes());
+
+    List<ScmWebPlugin> plugins = webPluginContext.getPlugins();
+
+    if (Util.isNotEmpty(plugins))
+    {
+      for (ScmWebPlugin plugin : plugins)
+      {
+        appendResource(stream, plugin);
+      }
+    }
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  protected String getContentType()
+  {
+    return CONTENT_TYPE;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param stream
+   * @param plugin
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  private void appendResource(OutputStream stream, ScmWebPlugin plugin)
+          throws ServletException, IOException
+  {
+    InputStream input = plugin.getScript();
+
+    if (input != null)
+    {
+      try
+      {
+        Util.copy(input, stream);
+      }
+      finally
+      {
+        Util.close(input);
+      }
+    }
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  @Inject
+  private ScmWebPluginContext webPluginContext;
+}