/** Performs the subsequent ReTrace operations. */
public void execute() throws IOException {
// Read the mapping file.
MappingReader mappingReader = new MappingReader(mappingFile);
mappingReader.pump(this);
StringBuffer expressionBuffer = new StringBuffer(regularExpression.length() + 32);
char[] expressionTypes = new char[32];
int expressionTypeCount = 0;
int index = 0;
while (true) {
int nextIndex = regularExpression.indexOf('%', index);
if (nextIndex < 0
|| nextIndex == regularExpression.length() - 1
|| expressionTypeCount == expressionTypes.length) {
break;
}
expressionBuffer.append(regularExpression.substring(index, nextIndex));
expressionBuffer.append('(');
char expressionType = regularExpression.charAt(nextIndex + 1);
switch (expressionType) {
case 'c':
expressionBuffer.append(REGEX_CLASS);
break;
case 'C':
expressionBuffer.append(REGEX_CLASS_SLASH);
break;
case 'l':
expressionBuffer.append(REGEX_LINE_NUMBER);
break;
case 't':
expressionBuffer.append(REGEX_TYPE);
break;
case 'f':
expressionBuffer.append(REGEX_MEMBER);
break;
case 'm':
expressionBuffer.append(REGEX_MEMBER);
break;
case 'a':
expressionBuffer.append(REGEX_ARGUMENTS);
break;
}
expressionBuffer.append(')');
expressionTypes[expressionTypeCount++] = expressionType;
index = nextIndex + 2;
}
expressionBuffer.append(regularExpression.substring(index));
Pattern pattern = Pattern.compile(expressionBuffer.toString());
// Read the stack trace file.
LineNumberReader reader =
new LineNumberReader(
stackTraceFile == null
? (Reader) new InputStreamReader(System.in)
: (Reader) new BufferedReader(new FileReader(stackTraceFile)));
try {
StringBuffer outLine = new StringBuffer(256);
List extraOutLines = new ArrayList();
String className = null;
// Read the line in the stack trace.
while (true) {
String line = reader.readLine();
if (line == null) {
break;
}
Matcher matcher = pattern.matcher(line);
if (matcher.matches()) {
int lineNumber = 0;
String type = null;
String arguments = null;
// Figure out a class name, line number, type, and
// arguments beforehand.
for (int expressionTypeIndex = 0;
expressionTypeIndex < expressionTypeCount;
expressionTypeIndex++) {
int startIndex = matcher.start(expressionTypeIndex + 1);
if (startIndex >= 0) {
String match = matcher.group(expressionTypeIndex + 1);
char expressionType = expressionTypes[expressionTypeIndex];
switch (expressionType) {
case 'c':
className = originalClassName(match);
break;
case 'C':
className = originalClassName(ClassUtil.externalClassName(match));
break;
case 'l':
lineNumber = Integer.parseInt(match);
break;
case 't':
type = originalType(match);
break;
case 'a':
arguments = originalArguments(match);
break;
}
}
}
// Actually construct the output line.
int lineIndex = 0;
outLine.setLength(0);
extraOutLines.clear();
for (int expressionTypeIndex = 0;
expressionTypeIndex < expressionTypeCount;
expressionTypeIndex++) {
int startIndex = matcher.start(expressionTypeIndex + 1);
if (startIndex >= 0) {
int endIndex = matcher.end(expressionTypeIndex + 1);
String match = matcher.group(expressionTypeIndex + 1);
// Copy a literal piece of input line.
outLine.append(line.substring(lineIndex, startIndex));
char expressionType = expressionTypes[expressionTypeIndex];
switch (expressionType) {
case 'c':
className = originalClassName(match);
outLine.append(className);
break;
case 'C':
className = originalClassName(ClassUtil.externalClassName(match));
outLine.append(ClassUtil.internalClassName(className));
break;
case 'l':
lineNumber = Integer.parseInt(match);
outLine.append(match);
break;
case 't':
type = originalType(match);
outLine.append(type);
break;
case 'f':
originalFieldName(className, match, type, outLine, extraOutLines);
break;
case 'm':
originalMethodName(
className, match, lineNumber, type, arguments, outLine, extraOutLines);
break;
case 'a':
arguments = originalArguments(match);
outLine.append(arguments);
break;
}
// Skip the original element whose processed version
// has just been appended.
lineIndex = endIndex;
}
}
// Copy the last literal piece of input line.
outLine.append(line.substring(lineIndex));
// Print out the main line.
System.out.println(outLine);
// Print out any additional lines.
for (int extraLineIndex = 0; extraLineIndex < extraOutLines.size(); extraLineIndex++) {
System.out.println(extraOutLines.get(extraLineIndex));
}
} else {
// Print out the original line.
System.out.println(line);
}
}
} catch (IOException ex) {
throw new IOException("Can't read stack trace (" + ex.getMessage() + ")");
} finally {
if (stackTraceFile != null) {
try {
reader.close();
} catch (IOException ex) {
// This shouldn't happen.
}
}
}
}
/** Receive notification of the end of an element. */
@Override
public void endElement(String uri, String l, String q) {
/*
* 1. If current element is a String, update its value from the string buffer.
* 2. Add the element to parent.
*/
ElementInfo element = _stack.remove(_stack.size() - 1);
_logger.fine("endElement " + element);
if (element.type == null) {
_logger.warning("Element " + element.name + " not created ");
return;
} else if (_chars.length() > 0) {
try {
injectProperty(element.data, String.class, _chars.toString(), null, null);
} catch (Exception x) {
if (!_lenient) {
throw new BeanAssemblyException(
"Failed to set characters to object " + element.type.getName(), x);
} else {
_logger.warning("Failed to set characters to parent " + element.data);
}
}
}
_chars.setLength(0);
_logger.fine(
"<<ElementInfo: "
+ element.type.getName()
+ " in "
+ element
+ "\n @as is "
+ element.inst.get("@as")
+ "\n @id is "
+ element.inst.get("@id"));
if (List.class.isAssignableFrom(element.data.getClass()) && element.name.endsWith("...")) {
List<?> list = (List<?>) element.data;
Object array = Array.newInstance(element.type, list.size());
for (int i = 0; i < list.size(); ++i) {
Array.set(array, i, list.get(i));
}
element.data = array;
}
String id = element.inst.get("@id");
if (id != null) {
// locally stored object - not added to the parent
_local.put(id, element);
} else if (!_stack.isEmpty()) {
// inject into the parent as a property
ElementInfo parent = _stack.get(_stack.size() - 1);
_logger.fine("Parent is " + parent.data.getClass().getName());
try {
String as = element.inst.get("@as");
if (as != null) {
injectProperty(
parent.data,
element.type,
element.data,
Strings.toCamelCase(as, '-', false),
element.args.complete());
} else {
injectProperty(parent.data, element.type, element.data, null, element.args.complete());
}
} catch (Exception x) {
if (!_lenient) {
throw new BeanAssemblyException(
"Failed to set value " + element.data + " to parent " + parent.data, x);
} else {
_logger.log(
Level.WARNING,
"Failed to set value " + element.data + " to parent " + parent.data,
x);
}
}
}
_top = element.data;
}