sql92scanner.java

java开源的企业总线.xmlBlaster

/* The following code was generated by JFlex 1.4 on 5/25/04 8:43 PM */

/*------------------------------------------------------------------------------
Name:      Sql92Scanner.flex
Project:   xmlBlaster.org
Copyright: xmlBlaster.org, see xmlBlaster-LICENSE file
------------------------------------------------------------------------------*/

/*
  To manually create it (without ant): > jflex Sql92Scanner.flex
  and then after the CUP parser has been created 
  > javac Sql92Scanner.java
*/
   
/* ----------------------------- Usercode Section ---------------------------- */
   
package org.xmlBlaster.util.lexical;

import java_cup.runtime.*;
import java_cup.sym;


import org.xmlBlaster.util.qos.ClientProperty;
import org.xmlBlaster.util.Global;
import java.util.logging.Logger;
import java.util.logging.Level;
      

/**
 * This class is a scanner generated by 
 * <a href="http://www.jflex.de/">JFlex</a> 1.4
 * on 5/25/04 8:43 PM from the specification file
 * <tt>./src/java/org/xmlBlaster/util/lexical/Sql92Scanner.flex</tt>
 */
class Sql92Scanner implements java_cup.runtime.Scanner {

  /** This character denotes the end of file */
  public static final int YYEOF = -1;

  /** initial size of the lookahead buffer */
  private static final int ZZ_BUFFERSIZE = 16384;

  /** lexical states */
  public static final int CONST_STRING = 1;
  public static final int YYINITIAL = 0;

  /** 
   * Translates characters to character classes
   */
  private static final char [] ZZ_CMAP = {
     0,  0,  0,  0,  0,  0,  0,  0,  0,  3,  2,  0,  3,  1,  0,  0, 
     0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 
     3, 24,  0,  0,  0,  0,  0,  6, 13, 14, 11, 10, 15,  9,  7, 12, 
     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  0, 38, 22, 21, 23,  0, 
     0, 16, 26, 33, 18, 27,  4, 36,  4, 29,  4, 32, 31,  4, 17, 19, 
    34,  4, 20, 30, 25, 35,  4, 28, 37,  4,  4,  0,  0,  0, 24,  4, 
     0,  4,  4,  4,  4,  8,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4, 
     4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  0,  0,  0,  0,  0
  };

  /** 
   * Translates DFA states to action switch labels.
   */
  private static final int [] ZZ_ACTION = zzUnpackAction();

  private static final String ZZ_ACTION_PACKED_0 =
    "\2\0\1\1\2\2\1\3\1\4\1\5\1\1\1\6"+
    "\1\7\1\10\1\11\1\12\1\13\1\14\4\3\1\15"+
    "\1\16\1\17\1\1\4\3\1\20\1\21\1\22\1\4"+
    "\1\0\3\3\1\23\1\3\1\24\1\25\1\26\2\3"+
    "\1\27\1\30\1\3\1\4\1\0\1\31\1\32\5\3"+
    "\1\33\3\3\1\34\1\35\3\3\1\36\1\37";

  private static int [] zzUnpackAction() {
    int [] result = new int[66];
    int offset = 0;
    offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAction(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /** 
   * Translates a state to a row index in the transition table
   */
  private static final int [] ZZ_ROWMAP = zzUnpackRowMap();

  private static final String ZZ_ROWMAP_PACKED_0 =
    "\0\0\0\47\0\116\0\165\0\116\0\234\0\303\0\116"+
    "\0\352\0\116\0\116\0\116\0\116\0\116\0\116\0\116"+
    "\0\u0111\0\u0138\0\u015f\0\u0186\0\u01ad\0\u01d4\0\116\0\u01fb"+
    "\0\u0222\0\u0249\0\u0270\0\u0297\0\116\0\u02be\0\116\0\u02e5"+
    "\0\u030c\0\u0333\0\u035a\0\u0381\0\234\0\u03a8\0\116\0\116"+
    "\0\116\0\u03cf\0\u03f6\0\234\0\234\0\u041d\0\u0444\0\u0444"+
    "\0\234\0\234\0\u046b\0\u0492\0\u04b9\0\u04e0\0\u0507\0\234"+
    "\0\u052e\0\u0555\0\u057c\0\234\0\234\0\u05a3\0\u05ca\0\u05f1"+
    "\0\234\0\234";

  private static int [] zzUnpackRowMap() {
    int [] result = new int[66];
    int offset = 0;
    offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackRowMap(String packed, int offset, int [] result) {
    int i = 0;  /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int high = packed.charAt(i++) << 16;
      result[j++] = high | packed.charAt(i++);
    }
    return j;
  }

  /** 
   * The transition table of the DFA
   */
  private static final int [] ZZ_TRANS = zzUnpackTrans();

  private static final String ZZ_TRANS_PACKED_0 =
    "\1\3\1\4\2\5\1\6\1\7\1\10\1\11\1\6"+
    "\1\12\1\13\1\14\1\15\1\16\1\17\1\20\1\21"+
    "\1\22\1\6\1\23\1\24\1\25\1\26\1\27\1\30"+
    "\1\6\1\31\1\32\1\6\1\33\1\6\1\34\6\6"+
    "\1\35\1\36\2\3\3\36\1\37\40\36\51\0\1\5"+
    "\50\0\2\6\2\0\1\6\7\0\5\6\4\0\15\6"+
    "\6\0\1\7\1\0\1\40\1\41\22\0\1\41\20\0"+
    "\1\40\45\0\2\6\2\0\1\6\7\0\1\6\1\42"+
    "\3\6\4\0\15\6\5\0\2\6\2\0\1\6\7\0"+
    "\3\6\1\43\1\6\4\0\12\6\1\44\2\6\5\0"+
    "\2\6\2\0\1\6\7\0\4\6\1\45\4\0\15\6"+
    "\5\0\2\6\2\0\1\6\7\0\5\6\4\0\2\6"+
    "\1\46\12\6\30\0\1\47\44\0\1\50\1\0\1\51"+
    "\44\0\1\51\25\0\2\6\2\0\1\6\7\0\5\6"+
    "\4\0\2\6\1\52\12\6\5\0\2\6\2\0\1\6"+
    "\7\0\5\6\4\0\5\6\1\53\7\6\5\0\2\6"+
    "\2\0\1\6\7\0\1\6\1\54\3\6\4\0\5\6"+
    "\1\55\7\6\5\0\2\6\2\0\1\6\7\0\5\6"+
    "\4\0\4\6\1\56\10\6\1\0\1\36\2\0\3\36"+
    "\1\0\40\36\5\0\1\40\2\0\1\41\22\0\1\41"+
    "\20\0\1\57\3\0\2\60\40\0\2\6\2\0\1\6"+
    "\7\0\2\6\1\61\2\6\4\0\15\6\5\0\2\6"+
    "\2\0\1\6\7\0\5\6\4\0\1\62\14\6\5\0"+
    "\2\6\2\0\1\6\7\0\5\6\4\0\6\6\1\63"+
    "\6\6\5\0\2\6\2\0\1\6\7\0\5\6\4\0"+
    "\13\6\1\64\1\6\5\0\2\6\2\0\1\6\7\0"+
    "\5\6\4\0\1\65\14\6\5\0\2\6\2\0\1\6"+
    "\7\0\5\6\4\0\10\6\1\66\4\6\5\0\2\6"+
    "\2\0\1\6\7\0\5\6\4\0\7\6\1\67\5\6"+
    "\6\0\1\57\45\0\2\6\2\0\1\6\7\0\5\6"+
    "\4\0\6\6\1\70\6\6\5\0\2\6\2\0\1\6"+
    "\7\0\5\6\4\0\2\6\1\71\12\6\5\0\2\6"+
    "\2\0\1\6\7\0\5\6\4\0\3\6\1\72\11\6"+
    "\5\0\2\6\2\0\1\6\7\0\1\73\4\6\4\0"+
    "\15\6\5\0\2\6\2\0\1\6\7\0\5\6\4\0"+
    "\2\6\1\74\12\6\5\0\2\6\2\0\1\6\7\0"+
    "\5\6\4\0\14\6\1\75\5\0\2\6\2\0\1\6"+
    "\7\0\5\6\4\0\2\6\1\76\12\6\5\0\2\6"+
    "\2\0\1\6\7\0\5\6\4\0\11\6\1\77\3\6"+
    "\5\0\2\6\2\0\1\6\7\0\5\6\4\0\2\6"+
    "\1\100\12\6\5\0\2\6\2\0\1\6\7\0\5\6"+
    "\4\0\2\6\1\101\12\6\5\0\2\6\2\0\1\6"+
    "\7\0\1\6\1\102\3\6\4\0\15\6\1\0";

  private static int [] zzUnpackTrans() {
    int [] result = new int[1560];
    int offset = 0;
    offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackTrans(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      value--;
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /* error codes */
  private static final int ZZ_UNKNOWN_ERROR = 0;
  private static final int ZZ_NO_MATCH = 1;
  private static final int ZZ_PUSHBACK_2BIG = 2;

  /* error messages for the codes above */
  private static final String ZZ_ERROR_MSG[] = {
    "Unkown internal scanner error",
    "Error: could not match input",
    "Error: pushback value was too large"
  };

  /**
   * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
   */
  private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();

  private static final String ZZ_ATTRIBUTE_PACKED_0 =
    "\2\0\1\11\1\1\1\11\2\1\1\11\1\1\7\11"+
    "\6\1\1\11\5\1\1\11\1\1\1\11\1\1\1\0"+
    "\5\1\3\11\6\1\1\0\22\1";

  private static int [] zzUnpackAttribute() {
    int [] result = new int[66];
    int offset = 0;
    offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAttribute(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }

  /** the input device */
  private java.io.Reader zzReader;

  /** the current state of the DFA */
  private int zzState;

  /** the current lexical state */
  private int zzLexicalState = YYINITIAL;

  /** this buffer contains the current text to be matched and is
      the source of the yytext() string */
  private char zzBuffer[] = new char[ZZ_BUFFERSIZE];

  /** the textposition at the last accepting state */
  private int zzMarkedPos;

  /** the textposition at the last state to be included in yytext */
  private int zzPushbackPos;

  /** the current text position in the buffer */
  private int zzCurrentPos;

  /** startRead marks the beginning of the yytext() string in the buffer */
  private int zzStartRead;

  /** endRead marks the last character in the buffer, that has been read
      from input */
  private int zzEndRead;

  /** number of newlines encountered up to the start of the matched text */
  private int yyline;

  /** the number of characters up to the start of the matched text */
  private int yychar;

  /**
   * the number of characters from the last newline up to the start of the 
   * matched text
   */
  private int yycolumn;

  /** 
   * zzAtBOL == true <=> the scanner is currently at the beginning of a line
   */
  private boolean zzAtBOL = true;

  /** zzAtEOF == true <=> the scanner is at the EOF */
  private boolean zzAtEOF;

  /** denotes if the user-EOF-code has already been executed */
  private boolean zzEOFDone;

  /* user code: */

    /**
     * This must be filled to be determined
     */
    private final static String ME = "Sql92Scanner";
    
    /** The client properties on which to do the query. These are set on each query */
    private java.util.Map properties;

    /** A placeholder for the string constants */
    private StringBuffer stringBf = new StringBuffer();

    private Global global;
   private static Logger log = Logger.getLogger(Sql92Scanner.class.getName());
    
    /** A buffer used only for logging purposes (active only when TRACE is on) */
    private StringBuffer logBuffer = new StringBuffer();

    /**
     * This is the constructor which we need to use in xmlBlaster.
     */
     public Sql92Scanner(Global global) {
        super();
        this.global = global;

        if (log.isLoggable(Level.FINER)) this.log.finer("Constructor");
     }

     /**
      * Sets the client properties for a querty. Note that the code is not threadsafe. 
      * The invoker must ensure threadsafety.
      */
     public void setClientPropertyMap(java.util.Map clientProperties) {
        this.properties = clientProperties;
     }

    /* To create a new java_cup.runtime.Symbol with information about
       the current token, the token will have no value in this
       case. */
    private Symbol symbol(int type) {
        return new Symbol(type, yyline, yycolumn);
    }
    
    /* Also creates a new java_cup.runtime.Symbol with information
       about the current token, but this object has a value. */
    private Symbol symbol(int type, Object value) {
        return new Symbol(type, yyline, yycolumn, value);
    }

    /**
     * Helper method to retrieve a particular client property. If the property has not
     * been found in the map, then a NULL_OBJECT symbol is returned. The type of this
     * object is not determined here. It is handled syntactically in the parser.
     */
    private Symbol symbolFromProperty(String propertyName) {
       ClientProperty clientProperty = null;
       if (properties != null) clientProperty = (ClientProperty)properties.get(propertyName);
       if (clientProperty == null) {
          return symbol(Sql92Symbols.NULL_OBJECT, null);
       }   
       String str = clientProperty.getStringValue();
       if (log.isLoggable(Level.FINE)) this.logBuffer.append(propertyName).append("(").append(str).append(")");
       if (clientProperty.isStringType()) {
          return symbol(Sql92Symbols.STRING, str);
       }
       return symbol(Sql92Symbols.NUMBER, new Double(str));
    }



  /**
   * Creates a new scanner
   * There is also a java.io.InputStream version of this constructor.
   *
   * @param   in  the java.io.Reader to read input from.
   */
  Sql92Scanner(java.io.Reader in) {
    this.zzReader = in;
  }

  /**
   * Creates a new scanner.
   * There is also java.io.Reader version of this constructor.
   *
   * @param   in  the java.io.Inputstream to read input from.
   */
  Sql92Scanner(java.io.InputStream in) {
    this(new java.io.InputStreamReader(in));
  }


  /**
   * Refills the input buffer.
   *
   * @return      <code>false</code>, iff there was new input.
   * 
   * @exception   java.io.IOException  if any I/O-Error occurs
   */
  private boolean zzRefill() throws java.io.IOException {

    /* first: make room (if you can) */
    if (zzStartRead > 0) {
      System.arraycopy(zzBuffer, zzStartRead,
                       zzBuffer, 0,
                       zzEndRead-zzStartRead);

      /* translate stored positions */
      zzEndRead-= zzStartRead;
      zzCurrentPos-= zzStartRead;
      zzMarkedPos-= zzStartRead;
      zzPushbackPos-= zzStartRead;
      zzStartRead = 0;
    }

    /* is the buffer big enough? */
    if (zzCurrentPos >= zzBuffer.length) {
      /* if not: blow it up */
      char newBuffer[] = new char[zzCurrentPos*2];
      System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
      zzBuffer = newBuffer;
    }

    /* finally: fill the buffer with new input */
    int numRead = zzReader.read(zzBuffer, zzEndRead,
                                            zzBuffer.length-zzEndRead);

    if (numRead < 0) {