Clover coverage report - gsbase - 2.0.1
Coverage timestamp: Sat Jan 1 2005 12:30:02 EST
file stats: LOC: 121   Methods: 6
NCLOC: 39   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
ThrowablePanel.java 0% 0% 0% 0%
coverage
 1    /*
 2    * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved.
 3    *
 4    * Redistribution and use in source and binary forms, with or without
 5    * modification, are permitted provided that the following conditions are met:
 6    *
 7    * 1. Redistributions of source code must retain the above copyright notice,
 8    * this list of conditions and the following disclaimer.
 9    * 2. Redistributions in binary form must reproduce the above copyright notice,
 10    * this list of conditions and the following disclaimer in the documentation
 11    * and/or other materials provided with the distribution.
 12    * 3. The end-user documentation included with the redistribution, if any, must
 13    * include the following acknowledgment:
 14    *
 15    * "This product includes software developed by Gargoyle Software Inc.
 16    * (http://www.GargoyleSoftware.com/)."
 17    *
 18    * Alternately, this acknowledgment may appear in the software itself, if
 19    * and wherever such third-party acknowledgments normally appear.
 20    * 4. The name "Gargoyle Software" must not be used to endorse or promote
 21    * products derived from this software without prior written permission.
 22    * For written permission, please contact info@GargoyleSoftware.com.
 23    * 5. Products derived from this software may not be called "GSBase", nor may
 24    * "GSBase" appear in their name, without prior written permission of
 25    * Gargoyle Software Inc.
 26    *
 27    * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 28    * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 29    * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
 30    * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 31    * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 32    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 33    * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 34    * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 35    * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 36    * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 37    */
 38    package com.gargoylesoftware.base.gui;
 39   
 40    import com.gargoylesoftware.base.util.DetailedNullPointerException;
 41    import javax.swing.JScrollPane;
 42    import javax.swing.JTextArea;
 43    import java.io.PrintWriter;
 44    import java.io.StringWriter;
 45   
 46    /**
 47    * A panel that can display an exception stack trace.
 48    *
 49    * @version $Revision: 1.6 $
 50    * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
 51    */
 52    public class ThrowablePanel extends JScrollPane {
 53    private static final long serialVersionUID = 1;
 54    private Throwable throwable_ = null;
 55    private final JTextArea textArea_;
 56   
 57    /**
 58    * Create a new panel.
 59    */
 60  0 public ThrowablePanel() {
 61  0 super( new JTextArea() );
 62  0 textArea_ = (JTextArea)getViewport().getView();
 63    }
 64   
 65    /**
 66    * Create a new panel.
 67    * @param t The exception to display.
 68    */
 69  0 public ThrowablePanel( final Throwable t ) {
 70  0 this();
 71  0 setException(t);
 72    }
 73   
 74    /**
 75    * Set the exception that is being displayed.
 76    * @param t The new exception.
 77    */
 78  0 public void setException( final Throwable t ) {
 79  0 assertNotNull("t", t);
 80  0 throwable_ = t;
 81  0 textArea_.setText( makeString(t) );
 82    }
 83   
 84    /**
 85    * Return the exception that is being displayed.
 86    * @return The exception.
 87    */
 88  0 public Throwable getException() {
 89  0 return throwable_;
 90    }
 91   
 92    /**
 93    * Make a string from the exception.
 94    * @param t The throwable object
 95    * @return A string containing the stack trace
 96    */
 97  0 private static String makeString( final Throwable t ) {
 98  0 final StringWriter stringWriter = new StringWriter();
 99  0 final PrintWriter printWriter = new PrintWriter(stringWriter);
 100  0 t.printStackTrace(printWriter);
 101   
 102  0 return stringWriter.toString();
 103    }
 104   
 105   
 106    /**
 107    * Verify that the specified value is not null. If it is then throw an exception
 108    *
 109    * @param fieldName The name of the field to check
 110    * @param fieldValue The value of the field to check
 111    * @exception DetailedNullPointerException If fieldValue is null
 112    */
 113  0 protected final void assertNotNull( final String fieldName, final Object fieldValue )
 114    throws DetailedNullPointerException {
 115   
 116  0 if( fieldValue == null ) {
 117  0 throw new DetailedNullPointerException(fieldName);
 118    }
 119    }
 120    }
 121