Moving to root below branch label

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/ErrorBean.java

@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.web.bean;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import javax.servlet.ServletException;
+
+/**
+ * Bean used by the error page, holds the last exception to be thrown by the system
+ * 
+ * @author gavinc
+ */
+public class ErrorBean
+{
+   public static final String ERROR_BEAN_NAME = "alfresco.ErrorBean";
+   
+   private String returnPage;
+   private Throwable lastError;
+
+   /**
+    * @return Returns the page to go back to after the error has been displayed
+    */
+   public String getReturnPage()
+   {
+      return returnPage;
+   }
+
+   /**
+    * @param returnPage The page to return to after showing the error
+    */
+   public void setReturnPage(String returnPage)
+   {
+      this.returnPage = returnPage;
+   }
+
+   /**
+    * @return Returns the lastError.
+    */
+   public Throwable getLastError()
+   {
+      return lastError;
+   }
+
+   /**
+    * @param lastError The lastError to set.
+    */
+   public void setLastError(Throwable lastError)
+   {
+      this.lastError = lastError;
+   }
+   
+   /**
+    * @return Returns the last error to occur in string form
+    */
+   public String getLastErrorMessage()
+   {
+      String message = "No error currently stored";
+      
+      if (this.lastError != null)
+      {
+         StringBuilder builder = null;
+         Throwable cause = null;
+         if (this.lastError instanceof ServletException && 
+             ((ServletException)this.lastError).getRootCause() != null)
+         {
+            // servlet exception puts the actual error in root cause!!
+            Throwable actualError = ((ServletException)this.lastError).getRootCause();
+            builder = new StringBuilder(actualError.toString());
+            cause = actualError.getCause();
+         }
+         else
+         {
+            builder = new StringBuilder(this.lastError.toString());
+            cause = this.lastError.getCause(); 
+         }
+         
+         while (cause != null)
+         {
+            builder.append("<br/><br/>caused by:<br/>");
+            builder.append(cause.toString());
+            
+            if (cause instanceof ServletException && 
+             ((ServletException)cause).getRootCause() != null)
+            {
+               cause = ((ServletException)cause).getRootCause();
+            }
+            else
+            {
+               cause = cause.getCause();
+            }  
+         }
+         
+         message = builder.toString();
+      }
+      
+      return message;
+   }
+   
+   /**
+    * @return Returns the stack trace for the last error
+    */
+   public String getStackTrace()
+   {
+      StringWriter stringWriter = new StringWriter();
+      PrintWriter writer = new PrintWriter(stringWriter);
+      
+      if (this.lastError instanceof ServletException && 
+          ((ServletException)this.lastError).getRootCause() != null)
+      {
+         Throwable actualError = ((ServletException)this.lastError).getRootCause();
+         actualError.printStackTrace(writer);
+      }
+      else
+      {
+         this.lastError.printStackTrace(writer);
+      }
+      
+      return stringWriter.toString().replaceAll("\r\n", "<br/>");
+   }
+}