1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.util;
24  
25  import com.liferay.portal.kernel.io.unsync.UnsyncBufferedWriter;
26  import com.liferay.portal.kernel.io.unsync.UnsyncStringWriter;
27  
28  import java.io.PrintWriter;
29  
30  /**
31   * <a href="StackTraceUtil.java.html"><b><i>View Source</i></b></a>
32   *
33   * @author Brian Wing Shun Chan
34   */
35  public class StackTraceUtil {
36  
37      public static String getStackTrace(Throwable t) {
38          String stackTrace = null;
39  
40          PrintWriter printWriter = null;
41  
42          try {
43              UnsyncStringWriter unsyncStringWriter = new UnsyncStringWriter(
44                  true);
45  
46              printWriter = new PrintWriter(
47                  new UnsyncBufferedWriter(unsyncStringWriter));
48  
49              t.printStackTrace(printWriter);
50  
51              printWriter.flush();
52  
53              stackTrace = unsyncStringWriter.toString();
54          }
55          finally {
56              if (printWriter != null) {
57                  printWriter.flush();
58                  printWriter.close();
59              }
60          }
61  
62          return stackTrace;
63      }
64  
65  }