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
20 package org.apache.myfaces.tobago.example.demo;
21
22 import javax.enterprise.context.RequestScoped;
23 import javax.faces.context.FacesContext;
24 import javax.inject.Named;
25 import java.io.PrintWriter;
26 import java.io.Serializable;
27 import java.io.StringWriter;
28
29 @RequestScoped
30 @Named
31 public class ExceptionController implements Serializable {
32
33 public String getStackTrace() {
34 final Throwable exception = (Throwable) FacesContext.getCurrentInstance().getExternalContext()
35 .getRequestMap().get("javax.servlet.error.exception");
36 final StringWriter stringWriter = new StringWriter();
37 final PrintWriter printWriter = new PrintWriter(stringWriter);
38 if(exception != null) {
39 exception.printStackTrace(printWriter);
40 }
41 return stringWriter.toString();
42 }
43 }