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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.custom.conversation;
20  
21  import javax.faces.application.FacesMessage;
22  import javax.faces.context.FacesContext;
23  import java.io.PrintWriter;
24  import java.io.StringWriter;
25  
26  /**
27   * methods required to inform the user about some anomalies
28   * 
29   * @author imario@apache.org
30   */
31  public class DefaultConversationMessager implements ConversationMessager
32  {
33      public void setConversationException(FacesContext context, Throwable t)
34      {
35          context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL, t.getLocalizedMessage(), getThrowableText(t)));
36      }
37  
38      public void setConversationNotActive(FacesContext context, String name)
39      {
40          String message = "Conversation not active";
41          String messageDtl = "Conversation not active. Please start over. (Conversation Name:" + name + ")";
42          
43          context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL, message, messageDtl));
44      }
45  
46      protected String getThrowableText(Throwable t)
47      {
48          StringWriter sw = new StringWriter();
49          PrintWriter pw = new PrintWriter(sw);
50          t.printStackTrace(pw);
51          pw.close();
52          return sw.toString();
53      }
54  }