Mercurial > projects > dwt-linux
annotate dwt/DWTError.d @ 361:4bffbf81e2d6
redirect direct prints to DwtLogger
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Fri, 20 Mar 2009 21:00:06 +0100 |
| parents | c0d810de7093 |
| children |
| rev | line source |
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| 72 | 1 /******************************************************************************* |
| 259 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 0 | 3 * All rights reserved. This program and the accompanying materials |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 72 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 0 | 12 *******************************************************************************/ |
| 71 | 13 module dwt.DWTError; |
| 0 | 14 |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 71 | 17 import dwt.DWT; |
| 0 | 18 |
| 19 import tango.core.Exception; | |
| 20 | |
| 21 /** | |
| 22 * This error is thrown whenever an unrecoverable error | |
| 71 | 23 * occurs internally in DWT. The message text and error code |
| 0 | 24 * provide a further description of the problem. The exception |
| 25 * has a <code>throwable</code> field which holds the underlying | |
| 26 * throwable that caused the problem (if this information is | |
| 27 * available (i.e. it may be null)). | |
| 28 * <p> | |
| 29 * SWTErrors are thrown when something fails internally which | |
| 71 | 30 * either leaves DWT in an unknown state (eg. the o/s call to |
| 31 * remove an item from a list returns an error code) or when DWT | |
| 0 | 32 * is left in a known-to-be-unrecoverable state (eg. it runs out |
| 33 * of callback resources). SWTErrors should not occur in typical | |
| 34 * programs, although "high reliability" applications should | |
| 35 * still catch them. | |
| 36 * </p><p> | |
| 71 | 37 * This class also provides support methods used by DWT to match |
| 38 * error codes to the appropriate exception class (DWTError, | |
| 39 * DWTException, or IllegalArgumentException) and to provide | |
| 40 * human readable strings for DWT error codes. | |
| 0 | 41 * </p> |
| 42 * | |
| 71 | 43 * @see DWTException |
| 44 * @see DWT#error(int) | |
| 259 | 45 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| 0 | 46 */ |
| 47 | |
| 71 | 48 public class DWTError : PlatformException { |
| 0 | 49 /** |
| 71 | 50 * The DWT error code, one of DWT.ERROR_*. |
| 0 | 51 */ |
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52 public int code; |
| 0 | 53 |
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54 /** |
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55 * The underlying throwable that caused the problem, |
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56 * or null if this information is not available. |
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57 */ |
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58 public Exception throwable( Exception e ){ |
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59 this.next = e; |
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60 return this.next; |
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61 } |
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62 public Exception throwable(){ |
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63 return this.next; |
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64 } |
| 0 | 65 |
| 66 //static final long serialVersionUID = 3833467327105808433L; | |
| 67 | |
| 68 /** | |
| 69 * Constructs a new instance of this class with its | |
| 70 * stack trace filled in. The error code is set to an | |
| 71 * unspecified value. | |
| 72 */ | |
| 73 public this () { | |
| 71 | 74 this (DWT.ERROR_UNSPECIFIED); |
| 0 | 75 } |
| 76 | |
| 77 /** | |
| 78 * Constructs a new instance of this class with its | |
| 79 * stack trace and message filled in. The error code is | |
| 80 * set to an unspecified value. Specifying <code>null</code> | |
| 81 * as the message is equivalent to specifying an empty string. | |
| 82 * | |
| 83 * @param message the detail message for the exception | |
| 84 */ | |
| 238 | 85 public this (String message) { |
| 71 | 86 this (DWT.ERROR_UNSPECIFIED, message); |
| 0 | 87 } |
| 88 | |
| 89 /** | |
| 90 * Constructs a new instance of this class with its | |
| 91 * stack trace and error code filled in. | |
| 92 * | |
| 71 | 93 * @param code the DWT error code |
| 0 | 94 */ |
| 95 public this (int code) { | |
| 71 | 96 this (code, DWT.findErrorText (code)); |
| 0 | 97 } |
| 98 | |
| 99 /** | |
| 100 * Constructs a new instance of this class with its | |
| 101 * stack trace, error code and message filled in. | |
| 102 * Specifying <code>null</code> as the message is | |
| 103 * equivalent to specifying an empty string. | |
| 104 * | |
| 71 | 105 * @param code the DWT error code |
| 0 | 106 * @param message the detail message for the exception |
| 107 */ | |
| 238 | 108 public this (int code, String message) { |
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109 super (message); |
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parents:
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110 this.code = code; |
| 0 | 111 } |
| 112 | |
| 113 /** | |
| 114 * Returns the underlying throwable that caused the problem, | |
| 115 * or null if this information is not available. | |
| 116 * <p> | |
| 117 * NOTE: This method overrides Throwable.getCause() that was | |
| 118 * added to JDK1.4. It is necessary to override this method | |
| 119 * in order for inherited printStackTrace() methods to work. | |
| 120 * </p> | |
| 121 * @return the underlying throwable | |
| 122 * | |
| 123 * @since 3.1 | |
| 124 */ | |
| 125 public Exception getCause() { | |
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126 return throwable; |
| 0 | 127 } |
| 128 | |
| 129 /** | |
| 71 | 130 * Returns the string describing this DWTError object. |
| 0 | 131 * <p> |
| 132 * It is combined with the message string of the Throwable | |
| 71 | 133 * which caused this DWTError (if this information is available). |
| 0 | 134 * </p> |
| 71 | 135 * @return the error message string of this DWTError object |
| 0 | 136 */ |
| 238 | 137 public String getMessage () { |
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138 if (throwable is null) |
| 0 | 139 return super.toString(); |
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8cec8f536af3
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Frank Benoit <benoit@tionex.de>
parents:
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140 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 0 | 141 } |
| 142 | |
| 143 /** | |
| 144 * Outputs a printable representation of this error's | |
| 145 * stack trace on the standard error stream. | |
| 146 * <p> | |
| 147 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) | |
| 148 * are not provided in order to maintain compatibility with CLDC. | |
| 149 * </p> | |
| 150 */ | |
| 151 public void printStackTrace () { | |
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152 getDwtLogger().error( "stacktrace follows (if feature compiled in)" ); |
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de2578a843a7
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153 foreach( msg; info ){ |
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154 getDwtLogger().error( "{}", msg ); |
| 0 | 155 } |
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8cec8f536af3
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Frank Benoit <benoit@tionex.de>
parents:
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156 if ( throwable !is null) { |
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157 getDwtLogger().error ("*** Stack trace of contained error ***"); //$NON-NLS-1$ |
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de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
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parents:
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158 foreach( msg; throwable.info ){ |
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159 getDwtLogger().error( "{}", msg ); |
| 0 | 160 } |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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161 } |
| 0 | 162 } |
| 163 | |
| 164 } |