File	Doc	Category	Size	Date	Package
CallerInfo.java	API Doc	Glassfish v2 API	10688	Fri May 04 22:35:54 BST 2007	com.sun.enterprise.tools.common.util.diagnostics

CallerInfo

• java.lang.Object

Fields Summary
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() 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...*****"); for(Enumeration e = ignoreVec.elements(); e.hasMoreElements(); ) { System.out.println(e.nextElement().toString()); } */ // 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();