Examples of org.apache.oro.text.regex.PatternMatcher

org.apache.oro.text.regex.PatternMatcher
The PatternMatcher interface defines the operations a regular expression matcher must implement. However, the types of the Pattern implementations recognized by a matcher are not restricted. Typically PatternMatcher instances will only recognize a specific type of Pattern. For example, the Perl5Matcher only recognizes Perl5Pattern instances. However, none of the PatternMatcher methods are required to throw an exception in case of the use of an invalid pattern. This is done for efficiency reasons, although usually a CastClassException will be thrown by the Java runtime system if you use the wrong Pattern implementation. It is the responsibility of the programmer to make sure he uses the correct Pattern instance with a given PatternMatcher instance. The current version of this package only contains the Perl5 suite of pattern matching classes, but future ones for other regular expression grammars may be added and users may also create their own implementations of the provided interfaces. Therefore the programmer should be careful not to mismatch classes. @version @version@ @since 1.0 @see Pattern @see PatternCompiler @see MatchResult


        // Since we have no way of knowing the auto-generated variables in the SQL,
        // we simply try to extract it from the SQL
        Pattern             declarePattern     = new Perl5Compiler().compile("DECLARE @([\\S]+) [^@]+@([\\S]+)");
        PatternMatcherInput input              = new PatternMatcherInput(sql);
        PatternMatcher      matcher            = new Perl5Matcher();
        String[]            tableNameVars      = { "tablename", "tablename", "tablename" };
        String[]            constraintNameVars = { "constraintname", "constraintname", "constraintname" };


        for (int idx = 0; (idx < 3) && matcher.contains(input, declarePattern); idx++)
        {
            MatchResult result = matcher.getMatch();


            tableNameVars[idx]      = result.group(1);
            constraintNameVars[idx] = result.group(2);
            input.setCurrentOffset(result.endOffset(2));
        }

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        String sql = createTestDatabase(COLUMN_CHAR_SEQUENCES_TO_ESCAPE);


        // Since we have no way of knowing the auto-generated variables in the SQL,
        // we simply try to extract it from the SQL
        Pattern        declarePattern    = new Perl5Compiler().compile("DECLARE @([\\S]+) [^@]+@([\\S]+)");
        PatternMatcher matcher           = new Perl5Matcher();
        String         tableNameVar      = "tablename";
        String         constraintNameVar = "constraintname";


        if (matcher.contains(sql, declarePattern))
        {
            tableNameVar      = matcher.getMatch().group(1);
            constraintNameVar = matcher.getMatch().group(2);
        }
        assertEqualsIgnoringWhitespaces(
            "SET quoted_identifier on;\n"+
            "SET quoted_identifier on;\n"+
            "IF EXISTS (SELECT 1 FROM sysobjects WHERE type = 'U' AND name = 'escapedcharacters')\n"+

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      if (column.getTypeCode() == Types.TIMESTAMP)
      {
        // Sql Server maintains the default values for DATE/TIME jdbc types, so we have to
        // migrate the default value to TIMESTAMP
        PatternMatcher matcher   = new Perl5Matcher();
        Timestamp      timestamp = null;
  
        if (matcher.matches(defaultValue, _isoDatePattern))
        {
          timestamp = new Timestamp(Date.valueOf(matcher.getMatch().group(1)).getTime());
        }
        else if (matcher.matches(defaultValue, _isoTimePattern))
        {
          timestamp = new Timestamp(Time.valueOf(matcher.getMatch().group(1)).getTime());
        }
        if (timestamp != null)
        {
          defaultValue = timestamp.toString();
        }

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            enteredValue = newEnteredValue;
            validationError = null;
    
            if (enteredValue != null) {
                // try to split it
                PatternMatcher matcher = new Perl5Matcher();
                if (matcher.matches(enteredValue, aggregateDefinition.getSplitPattern())) {
                    MatchResult matchResult = matcher.getMatch();
                    Iterator iterator = aggregateDefinition.getSplitMappingsIterator();
                    while (iterator.hasNext()) {
                        SplitMapping splitMapping = (SplitMapping)iterator.next();
                        String result = matchResult.group(splitMapping.getGroup());
                        // Since we know the fields are guaranteed to have a string datatype, we

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      else
        return hasFailMessage() ? getFailMessage() : new ValidationError(new I18nMessage("validation.string.regexp", new String[] {regexp}, Constants.I18N_CATALOGUE));
    }
    
    private boolean matchesRegExp(String string) {
        PatternMatcher matcher = new Perl5Matcher();
        return matcher.matches(string, pattern);
    }

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        {
        if (column.getTypeCode() == Types.TIMESTAMP)
        {
          // Sybase maintains the default values for DATE/TIME jdbc types, so we have to
          // migrate the default value to TIMESTAMP
          PatternMatcher matcher   = new Perl5Matcher();
          Timestamp      timestamp = null;
    
          if (matcher.matches(column.getDefaultValue(), _isoDatePattern))
          {
            timestamp = new Timestamp(Date.valueOf(matcher.getMatch().group(1)).getTime());
          }
          else if (matcher.matches(column.getDefaultValue(), _isoTimePattern))
          {
            timestamp = new Timestamp(Time.valueOf(matcher.getMatch().group(1)).getTime());
          }
          if (timestamp != null)
          {
            column.setDefaultValue(timestamp.toString());
          }

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      column.setTypeCode(Types.TIMESTAMP);


      // we also reverse the ISO-format adaptation, and adjust the default value to timestamp
      if (column.getDefaultValue() != null)
      {
        PatternMatcher matcher   = new Perl5Matcher();
        Timestamp      timestamp = null;
  
        if (matcher.matches(column.getDefaultValue(), _oracleIsoTimestampPattern))
        {
          String timestampVal = matcher.getMatch().group(1);


          timestamp = Timestamp.valueOf(timestampVal);
        }
        else if (matcher.matches(column.getDefaultValue(), _oracleIsoDatePattern))
        {
          String dateVal = matcher.getMatch().group(1);


          timestamp = new Timestamp(Date.valueOf(dateVal).getTime());
        }
        else if (matcher.matches(column.getDefaultValue(), _oracleIsoTimePattern))
        {
          String timeVal = matcher.getMatch().group(1);


          timestamp = new Timestamp(Time.valueOf(timeVal).getTime());
        }
        if (timestamp != null)
        {

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    if (column.getDefaultValue() != null)
    {
      if (column.getTypeCode() == Types.TIME)
      {
        PatternMatcher matcher = new Perl5Matcher();


        // Db2 returns "HH24.MI.SS"
        if (matcher.matches(column.getDefaultValue(), _db2TimePattern))
        {
          StringBuffer newDefault = new StringBuffer();


          newDefault.append("'");
          // the hour
          newDefault.append(matcher.getMatch().group(1));
          newDefault.append(":");
          // the minute
          newDefault.append(matcher.getMatch().group(2));
          newDefault.append(":");
          // the second
          newDefault.append(matcher.getMatch().group(3));
          newDefault.append("'");


          column.setDefaultValue(newDefault.toString());
        }
      }
      else if (column.getTypeCode() == Types.TIMESTAMP)
      {
        PatternMatcher matcher = new Perl5Matcher();


        // Db2 returns "YYYY-MM-DD-HH24.MI.SS.FF"
        if (matcher.matches(column.getDefaultValue(), _db2TimestampPattern))
        {
          StringBuffer newDefault = new StringBuffer();


          newDefault.append("'");
          // group 1 is the date which has the correct format
          newDefault.append(matcher.getMatch().group(1));
          newDefault.append(" ");
          // the hour
          newDefault.append(matcher.getMatch().group(2));
          newDefault.append(":");
          // the minute
          newDefault.append(matcher.getMatch().group(3));
          newDefault.append(":");
          // the second
          newDefault.append(matcher.getMatch().group(4));
          // optionally, the fraction
          if ((matcher.getMatch().groups() > 4) && (matcher.getMatch().group(4) != null))
          {
            newDefault.append(matcher.getMatch().group(5));
          }
          newDefault.append("'");


          column.setDefaultValue(newDefault.toString());
        }

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  patterns = new Pattern[raw_pat.length];
  substitutions = new String[raw_pat.length];
  int realsize = 0;


  PatternCompiler compiler = new Perl5Compiler();
  PatternMatcher matcher = new Perl5Matcher();
  
  for (int i=0; i<raw_pat.length; i++) {
      try {
    if (matcher.matches(raw_pat[i], dec_pat)) {
        patterns[realsize] = 
      compiler.compile(matcher.getMatch().group(1));
        substitutions[realsize] = matcher.getMatch().group(2);
        realsize++;
    }
      } catch (MalformedPatternException ex) {
    // bad configuration...
      }

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    }


    public ReplyInterface ingoingFilter(RequestInterface request) {
  Request req = (Request) request;
  String  requrl = req.getURL().toExternalForm();
  PatternMatcher matcher = new Perl5Matcher();
  Pattern pat[] = getPatterns();
  if (pat == null || pat.length == 0)
      return null;
  String sub[] = getSubstitutions();
  String result = null;
  for (int i=0; i< pat.length; i++) {
      if (matcher.matches(requrl, pat[i])) {
    Substitution s = new Perl5Substitution(sub[i]);
    result = Util.substitute(matcher, pat[i], s, requrl,
           Util.SUBSTITUTE_ALL);
    break;
      }

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