added exception handler to cgi implementation

scm-core/src/main/java/sonia/scm/web/cgi/CGIExceptionHandler.java

@@ -0,0 +1,61 @@
+/**
+ * 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.web.cgi;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Handles exception thrown by an {@link CGIExecutor}
+ *
+ * @author Sebastian Sdorra
+ * @since 1.8
+ */
+public interface CGIExceptionHandler
+{
+
+  /**
+   * Handles a exception which is ocurred during cgi execution.
+   *
+   *
+   * @param request current http request
+   * @param response current http response
+   * @param exception exception to handle
+   */
+  public void handleException(HttpServletRequest request,
+                              HttpServletResponse response,
+                              Throwable exception);
+}

scm-core/src/main/java/sonia/scm/web/cgi/CGIExecutor.java

@@ -159,6 +159,15 @@ public interface CGIExecutor
    */
   public EnvList getEnvironment();
 
+  /**
+   * Returns the cgi exception handler.
+   *
+   *
+   * @return cgi exception handler
+   * @since 1.8
+   */
+  public CGIExceptionHandler getExceptionHandler();
+
   /**
    * Method description
    *
@@ -209,6 +218,15 @@ public interface CGIExecutor
    */
   public void setEnvironment(EnvList environment);
 
+  /**
+   * Sets the cgi exception handler.
+   *
+   *
+   * @param exceptionHandler cgi exception handler
+   * @since 1.8
+   */
+  public void setExceptionHandler(CGIExceptionHandler exceptionHandler);
+
   /**
    * Method description
    *