示例#1
0
  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();
 }