private Map<String, com.sun.jdi.connect.Connector.Argument> parseConnectorArgs(
Connector connector, String argString) {
Map<String, com.sun.jdi.connect.Connector.Argument> arguments = connector.defaultArguments();
/*
* We are parsing strings of the form:
* name1=value1,[name2=value2,...]
* However, the value1...valuen substrings may contain
* embedded comma(s), so make provision for quoting inside
* the value substrings. (Bug ID 4285874)
*/
String regexPattern =
"(quote=[^,]+,)|"
+ // special case for quote=.,
"(\\w+=)"
+ // name=
"(((\"[^\"]*\")|"
+ // ( "l , ue"
"('[^']*')|"
+ // 'l , ue'
"([^,'\"]+))+,)"; // v a l u e )+ ,
Pattern p = Pattern.compile(regexPattern);
Matcher m = p.matcher(argString);
while (m.find()) {
int startPosition = m.start();
int endPosition = m.end();
if (startPosition > 0) {
/*
* It is an error if parsing skips over any part of argString.
*/
throw new IllegalArgumentException(
MessageOutput.format("Illegal connector argument", argString));
}
String token = argString.substring(startPosition, endPosition);
int index = token.indexOf('=');
String name = token.substring(0, index);
String value = token.substring(index + 1, token.length() - 1); // Remove comma delimiter
/*
* for values enclosed in quotes (single and/or double quotes)
* strip off enclosing quote chars
* needed for quote enclosed delimited substrings
*/
if (name.equals("options")) {
StringBuilder sb = new StringBuilder();
for (String s : splitStringAtNonEnclosedWhiteSpace(value)) {
while (isEnclosed(s, "\"") || isEnclosed(s, "'")) {
s = s.substring(1, s.length() - 1);
}
sb.append(s);
sb.append(" ");
}
value = sb.toString();
}
Connector.Argument argument = arguments.get(name);
if (argument == null) {
throw new IllegalArgumentException(
MessageOutput.format(
"Argument is not defined for connector:", new Object[] {name, connector.name()}));
}
argument.setValue(value);
argString = argString.substring(endPosition); // Remove what was just parsed...
m = p.matcher(argString); // and parse again on what is left.
}
if ((!argString.equals(",")) && (argString.length() > 0)) {
/*
* It is an error if any part of argString is left over,
* unless it was empty to begin with.
*/
throw new IllegalArgumentException(
MessageOutput.format("Illegal connector argument", argString));
}
return arguments;
}
private String anonymousBaseName(String name) {
Matcher mat = ANONYMOUS_TAIL.matcher(name);
if (mat.find()) return name.substring(0, mat.start());
else return null;
}
class PatternReferenceTypeSpec implements ReferenceTypeSpec {
final String classId, transClassId;
boolean anonymous;
boolean checkJavaLang;
String stem;
static final Pattern ANONYMOUS_TAIL = Pattern.compile("[.$]\\d+$"),
ANONYMOUS_SEGMENT = Pattern.compile("^\\d+$");
PatternReferenceTypeSpec(String classId, boolean checkJavaLang) throws ClassNotFoundException {
if (classId.endsWith(".0")) {
classId = classId.substring(0, classId.length() - 2);
anonymous = true;
} else anonymous = false;
this.classId = classId;
stem = transClassId = classId.replace('$', '.');
if (classId.startsWith("*")) {
stem = stem.substring(1);
checkJavaLang = false;
} else if (classId.endsWith("*")) {
stem = stem.substring(0, classId.length() - 1);
checkJavaLang = false;
}
checkClassName(stem);
this.checkJavaLang = checkJavaLang && stem.indexOf('.') == -1;
}
PatternReferenceTypeSpec(String classId) throws ClassNotFoundException {
this(classId, false);
}
/** Does the specified ReferenceType match this spec. */
public boolean matches(ReferenceType refType) {
String refName = refType.name().replace('$', '.');
String compName;
compName = refName;
if (anonymous) {
String anonymousBase = anonymousBaseName(refName);
if (anonymousBase != null) compName = anonymousBase;
else return false;
}
if (classId.startsWith("*")) {
return compName.endsWith(stem);
} else if (classId.endsWith("*")) {
return compName.startsWith(stem);
} else if (checkJavaLang
&& compName.startsWith("java.lang.")
&& compName.substring(10).equals(stem)) {
return true;
} else {
return compName.equals(transClassId);
}
}
public boolean isAnyAnonymous() {
return anonymous;
}
public int hashCode() {
return classId.hashCode();
}
public boolean equals(Object obj) {
if (obj instanceof PatternReferenceTypeSpec) {
PatternReferenceTypeSpec spec = (PatternReferenceTypeSpec) obj;
return transClassId.equals(spec.transClassId);
} else {
return false;
}
}
private void checkClassName(String className) throws ClassNotFoundException {
// Do stricter checking of class name validity on deferred
// because if the name is invalid, it will
// never match a future loaded class, and we'll be silent
// about it.
StringTokenizer tokenizer = new StringTokenizer(className, ".");
while (tokenizer.hasMoreTokens()) {
String token = tokenizer.nextToken();
// Each dot-separated piece must be a valid identifier
// and the first token can also be "*".
if (!isJavaIdentifier(token)
&& (tokenizer.hasMoreTokens() || !isAnonymousClassSuffix(token))) {
throw new ClassNotFoundException();
}
}
if (!classIsPlausible()) Env.noticeln("Warning: class %s does not seem to exist.", classId);
}
private boolean isJavaIdentifier(String s) {
if (s.length() == 0) {
return false;
}
if (!Character.isJavaIdentifierStart(s.charAt(0))) {
return false;
}
for (int i = 1; i < s.length(); i++) {
if (!Character.isJavaIdentifierPart(s.charAt(i))) {
return false;
}
}
return true;
}
private boolean isAnonymousClassSuffix(String suffix) {
return ANONYMOUS_SEGMENT.matcher(suffix).find();
}
private String anonymousBaseName(String name) {
Matcher mat = ANONYMOUS_TAIL.matcher(name);
if (mat.find()) return name.substring(0, mat.start());
else return null;
}
public String toString() {
return classId + (isAnyAnonymous() ? ".0" : "");
}
/**
* False iff there is some evidence that no class described by this pattern exists in the
* classpath. Conservatively returns true for patterns containing "*", for cases where the virtual
* machine is not a PathSearchingVirtualMachine, and for anonymous classes for a parent class
* exists.
*/
boolean classIsPlausible() {
if (classId.startsWith("*")
|| classId.endsWith("*")
|| !(Env.vm() instanceof PathSearchingVirtualMachine)) return true;
else return Env.classMayExist(transClassId);
}
}
private boolean isAnonymousClassSuffix(String suffix) {
return ANONYMOUS_SEGMENT.matcher(suffix).find();
}