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1   package org.apache.turbine.modules.screens;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.turbine.Turbine;
23  import org.apache.turbine.TurbineConstants;
24  
25  import org.apache.turbine.util.RunData;
26  
27  import org.apache.velocity.context.Context;
28  
29  /***
30   * VelocityErrorScreen screen - directs errors at the velocity
31   * error template defined in template.error.
32   *
33   * @author <a href="mailto:gonzalo.diethelm@sonda.com">Gonzalo Diethelm</a>
34   * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
35   * @version $Id: VelocityErrorScreen.java 534527 2007-05-02 16:10:59Z tv $
36   */
37  public class VelocityErrorScreen
38      extends VelocityScreen
39  {
40      /***
41       * Implement this to add information to the context.
42       *
43       * @param data Turbine information.
44       * @param context Context for web pages.
45       * @exception Exception a generic exception.
46       */
47      protected void doBuildTemplate(RunData data, Context context)
48              throws Exception
49      {
50          context.put (TurbineConstants.PROCESSING_EXCEPTION_PLACEHOLDER,
51                       data.getStackTraceException().toString());
52          context.put (TurbineConstants.STACK_TRACE_PLACEHOLDER,
53                       data.getStackTrace());
54  
55          String errorTemplate = Turbine.getConfiguration()
56              .getString(TurbineConstants.TEMPLATE_ERROR_KEY,
57                         TurbineConstants.TEMPLATE_ERROR_VM);
58  
59          setTemplate(data, errorTemplate);
60      }
61  }