File	Doc	Category	Size	Date	Package
CallerInfo.java	API Doc	Glassfish v2 API	11361	Fri May 04 22:32:14 BST 2007	com.sun.enterprise.util.diagnostics

CallerInfo

• java.lang.Object

Fields Summary
static Logger	_logger
private String	className
private String	fileName
private String	methodName
private int	lineNumber
private final String	badFormat
private Vector	ignoreVec
private static Vector	globalIgnoreVec

Constructors Summary
public CallerInfo() //Bug 4677074 end this(null);
public CallerInfo(Object[] ignoreUsToo) // STUPID PROGRAMMER TRICKS -- create an Exception and make it print a stack trace to an // output stream that we can convert to a String -- then look for the first line that does *not* have // our classname in it for the needed information... // ByteArrayOutputStream baos = new ByteArrayOutputStream(); PrintWriter pw = new PrintWriter(baos); Throwable t = new Throwable(); String me = getClass().getName() + ".";//NOI18N ignoreVec.addElement(me); if(ignoreUsToo != null) { for(int i = 0; i < ignoreUsToo.length; i++) ignoreVec.addElement(ignoreUsToo[i].getClass().getName() + ".");//NOI18N } if(globalIgnoreVec.size() > 0) { for(Enumeration e = globalIgnoreVec.elements(); e.hasMoreElements(); ) ignoreVec.addElement(e.nextElement().getClass().getName() + ".");//NOI18N } /* System.out.println("**** Ignore List Dump...*****"); //Bug 4677074 begin _logger.log(Level.FINE,"**** Ignore List Dump...*****"); //Bug 4677074 end for(Enumeration e = ignoreVec.elements(); e.hasMoreElements(); ) { System.out.println(e.nextElement().toString()); //Bug 4677074 begin _logger.log(Level.FINE,e.nextElement().toString()); //Bug 4677074 end } */ // create the stack trace t.printStackTrace(pw); pw.flush(); // parse it... StringTokenizer st = new StringTokenizer(baos.toString(), "\n\r\t");//NOI18N if(st.countTokens() < 3) { // minimum: // 1. java.lang.Throwable: // 2. this method // 3. The method from who-knows-where that is calling a Reporter method... throw new CallerInfoException("Expected at least 3 lines from the stack dump -- only saw " + st.countTokens() + " lines");//NOI18N } st.nextToken(); // throw away first line ("java.lang.Throwable")//NOI18N while(st.hasMoreTokens()) { String s = st.nextToken(); if(!ignoreVec(s)) { parseCallerInfo(s); return; } } throw new CallerInfoException("Couldn't find a caller method");//NOI18N

Methods Summary
public static void	addToGlobalIgnore(java.lang.Object o) // check for dupes... for(Enumeration e = globalIgnoreVec.elements(); e.hasMoreElements(); ) if(o == e.nextElement()) return; globalIgnoreVec.addElement(o);
public java.lang.String	getClassName() Assertion.check(className); return className;
public java.lang.String	getFileName() Assertion.check(fileName != null); return fileName;
public int	getLineNumber() return lineNumber;
public java.lang.String	getMethodName() Assertion.check(methodName); return methodName;
private boolean	ignoreVec(java.lang.String s) Assertion.check(ignoreVec); final int size = ignoreVec.size(); Assertion.check(size > 0); for(int i = 0; i < size; i++) if(s.indexOf((String)(ignoreVec.elementAt(i))) >= 0) return true; return false;
private java.lang.String	parseAndRemoveLineInfo(java.lang.String s) // lineInfo --> debug build: "(ReporterTester.java:26)" // release build: "(Unknown Source)" // I think this is a possibility: (foo.java) or (foo.java:) -- but can't reproduce... fileName = "";//NOI18N lineNumber = -1; int left = s.indexOf('("); int right = s.indexOf(')"); if(left < 0 || right < 0 || right <= left) throw new CallerInfoException(badFormat + " -- no parenthesis in line:" + s);//NOI18N String lineInfo = s.substring(left + 1, right); s = s.substring(0, left); if(lineInfo.length() <= 0) return s; //() if(lineInfo.equals("Unknown Source"))//NOI18N return s; int colon = lineInfo.indexOf(':"); if(colon < 0) { // (foo.java) fileName = lineInfo; return s; } if(colon == lineInfo.length() - 1) { // (foo.java:) fileName = lineInfo.substring(0, colon); return s; } // (foo.java:125) fileName = lineInfo.substring(0, colon); try { lineNumber = Integer.parseInt(lineInfo.substring(colon + 1)); } catch(NumberFormatException e) { // it's already set to -1 } return s;
void	parseCallerInfo(java.lang.String stackDumpLine) /* format of line: // "at netscape.blizzard.util.ReporterTester.goo(ReporterTester.java:26)" // "at netscape.blizzard.util.ReporterTester.goo(ReporterTester.java:)" // "at netscape.blizzard.util.ReporterTester.goo(ReporterTester.java)" // "at netscape.blizzard.util.ReporterTester.goo(Unknown Source)"*/ if(!stackDumpLine.startsWith("at "))//NOI18N throw new CallerInfoException(badFormat + " -- no \"at \" at start of line (" + stackDumpLine +")");//NOI18N stackDumpLine = stackDumpLine.substring(3); String classInfo = parseAndRemoveLineInfo(stackDumpLine); parseClassInfo(classInfo);
private void	parseClassInfo(java.lang.String s) // format: netscape.blizzard.foo.goo.aMethod if(s.indexOf('.") < 0) throw new CallerInfoException(badFormat + " -- no \".\" in the fully-qualified method name");//NOI18N if(s.indexOf('.") == 0) throw new CallerInfoException(badFormat + " fully-qualified method name starts with a dot");//NOI18N int index = s.lastIndexOf('."); className = s.substring(0, index); methodName = s.substring(index + 1);
public java.lang.String	toString() Assertion.check(className); Assertion.check(methodName); Assertion.check(fileName != null); StringBuffer sb = new StringBuffer(); sb.append(className); sb.append(".");//NOI18N sb.append(methodName); if(fileName.length() > 0) sb.append("(" + fileName + ":" + lineNumber + ")");//NOI18N else sb.append("(Unknown Source");//NOI18N return sb.toString();
public java.lang.String	toStringDebug() Assertion.check(className); Assertion.check(methodName); Assertion.check(fileName != null); StringBuffer sb = new StringBuffer(getClass().getName()); sb.append(" dump:");//NOI18N sb.append("\nClass Name: ");//NOI18N sb.append(className); sb.append("\nMethod Name: ");//NOI18N sb.append(methodName); sb.append("\nFile Name: ");//NOI18N if(fileName.length() > 0) { sb.append(fileName); sb.append("\nLine Number: ");//NOI18N sb.append(lineNumber); } else sb.append("unknown");//NOI18N return sb.toString();