ai.heavy.jdbc.HeavyAIEscapeParser Class Reference

Classes
enum	EscapeFunctions
class	Pair
class	Parser_return

Static Public Member Functions
static String	parse (String sql)

Static Private Member Functions
static String	process_sql (String sql, Pair index)
static Parser_return	parse (String sql, int bracket_cnt)

Static Private Attributes
static final char[]	QUOTE_OR_ALPHABETIC_MARKER = {'\"', '0'}
static final char[]	SINGLE_QUOTE = {'\''}

Detailed Description

Definition at line 10 of file HeavyAIEscapeParser.java.

Member Function Documentation

static String ai.heavy.jdbc.HeavyAIEscapeParser.parse ( String  sql )

inlinestatic

Definition at line 127 of file HeavyAIEscapeParser.java.

References ai.heavy.jdbc.HeavyAIEscapeParser.Parser_return.bracket_cnt.

Referenced by ai.heavy.jdbc.HeavyAIEscapeParser.parse().

                                         {
    Parser_return pR = parse(sql, 0);
    if (pR.bracket_cnt != 0) {
      throw new RuntimeException("Invalid java escape syntax - badly matched '}'");
    }
    return pR.sql_value;
  }

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static Parser_return ai.heavy.jdbc.HeavyAIEscapeParser.parse ( String  sql, int  bracket_cnt  )

inlinestaticprivate

Definition at line 139 of file HeavyAIEscapeParser.java.

References ai.heavy.jdbc.HeavyAIEscapeParser.parse(), and ai.heavy.jdbc.HeavyAIEscapeParser.process_sql().

                                                                  {
    int index = 0;
    boolean in_quote = false;

    do {
      if (sql.charAt(index) == '\'') {
        in_quote = !in_quote;
      } else if (sql.charAt(index) == '{' && !in_quote) {
        if (index + 1 == sql.length()) {
          // What ever string we get should have had limit nnn
          // added to the end and this test is veru unlikely
          throw new RuntimeException("Invalid java escape syntax - badly matched '{'");
        }
        Parser_return pR = parse(sql.substring(index + 1), ++bracket_cnt);
        bracket_cnt = pR.bracket_cnt;
        String sql_snippet = pR.sql_value;
        sql = sql.substring(0, index) + " " + sql_snippet;
        index += pR.end_idx;
      } else if (sql.charAt(index) == '}' && !in_quote) {
        Pair ptr = new Pair(0);
        ptr.end = index;
        Parser_return pR = new Parser_return();
        pR.sql_value = process_sql(sql, ptr);
        pR.bracket_cnt = --bracket_cnt;
        pR.end_idx = ptr.end + 1;
        return pR;
      }
      index++;
    } while (index < sql.length());
    if (in_quote) {
      throw new RuntimeException("Invalid java escape syntax - badly matched '''");
    }

    Parser_return pR = new Parser_return();
    pR.sql_value = sql;
    pR.bracket_cnt = bracket_cnt;
    pR.end_idx = sql.length();
    return pR;
  }

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static String ai.heavy.jdbc.HeavyAIEscapeParser.process_sql ( String  sql, Pair  index  )

inlinestaticprivate

Definition at line 105 of file HeavyAIEscapeParser.java.

References ai.heavy.jdbc.HeavyAIEscapeParser.Pair.end, and ai.heavy.jdbc.HeavyAIEscapeParser.Pair.start.

Referenced by ai.heavy.jdbc.HeavyAIEscapeParser.parse().

                                                            {
    String value = sql.substring(index.start, index.end);

    boolean found_match = false;
    for (EscapeFunctions xx : EscapeFunctions.values()) {
      String newsql = xx.makeMatch(value);
      if (newsql != null) {
        sql = sql.substring(0, index.start) + newsql + " "
                + sql.substring(index.end + 1, sql.length());
        int x = newsql.length();
        index.end = index.start + newsql.length();
        found_match = true;
        break;
      }
    }
    if (!found_match) {
      // it's an array. Prepend '{' here, because parser will remove the original brace.
      sql = sql.substring(0, index.start) + "{" + sql.substring(index.start);
      index.end += 1;
    }
    return sql;
  }

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Member Data Documentation

final char [] ai.heavy.jdbc.HeavyAIEscapeParser.QUOTE_OR_ALPHABETIC_MARKER = {'\"', '0'}

staticprivate

Definition at line 11 of file HeavyAIEscapeParser.java.

final char [] ai.heavy.jdbc.HeavyAIEscapeParser.SINGLE_QUOTE = {'\''}

staticprivate

Definition at line 14 of file HeavyAIEscapeParser.java.

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/java/heavyaijdbc/src/main/java/ai/heavy/jdbc/HeavyAIEscapeParser.java