private Match createMatch()

in gateway-util-urltemplate/src/main/java/org/apache/knox/gateway/util/urltemplate/Matcher.java [278:330]
43 lines of code
16 McCabe index (conditional complexity)

  private Match createMatch( MatchSegment bestMatchSegment, PathNode bestPath, QueryNode bestQuery, Template input ) {
    Match match = null;

    if( bestPath != null ) { //&& ( bestQuery != null || !bestPath.hasQueries() ) ) {

      if( bestQuery != null ) {
        match = new Match( bestQuery.template, bestQuery.value );
      } else {
        match = new Match( bestPath.template, bestPath.value );
      }

      MatchParams matchParams = new MatchParams();

      // Add the matching query segments to the end of the list.
      if( bestQuery != null ) {
        Map<String,Query> inputQuery = input.getQuery();
        for( Query templateSegment : bestQuery.template.getQuery().values() ) {
          Query inputSegment = inputQuery.get( templateSegment.getQueryName() );
          if( inputSegment != null && templateSegment.matches( inputSegment ) ) {
            extractSegmentParams( templateSegment, inputSegment, matchParams );
          }
        }
      }

      // If the template has the "extra" query queryParam then collect query params that were
      // not already matched.
      if( bestQuery != null ) {
        Query extra = bestQuery.template.getExtra();
        if( extra != null ) {
          String paramName = extra.getParamName();
          if( paramName != null && !paramName.isEmpty()) {
            for( Query query: input.getQuery().values() ) {
              String queryName = query.getQueryName();
              if( matchParams.resolve( queryName ) == null ) {
                for( Segment.Value value: query.getValues() ) {
                  matchParams.addValue( queryName, value.getEffectivePattern() );
                }
              }
            }
          }
        }
      }

      // Walk back up the matching segment tree.
      MatchSegment matchSegment = bestMatchSegment;
      while( matchSegment != null && matchSegment.pathNode.depth > 0 ) {
        extractSegmentParams( matchSegment.templateSegment, matchSegment.inputSegment, matchParams );
        matchSegment = matchSegment.parentMatch;
      }
      match.params = matchParams;
    }
    return match;
  }