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DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript.
It gets rid of almost all the boilerplate code between the web browser and your Java code.
This version 4.0.2 works with Jakarta Servlet 4.0.2.
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/* Generated By:JavaCC: Do not edit this line. JavaccJsonParser.java */
package org.directwebremoting.json.parse.javacc;
import java.io.Reader;
import java.io.StringReader;
import org.directwebremoting.json.parse.JsonDecoder;
import org.directwebremoting.json.parse.JsonParseException;
import org.directwebremoting.json.parse.JsonParser;
/**
* Produced by JavaCC from JavaccJsonParser.jj
* @author Joe Walker [joe at getahead dot org]
*/
@SuppressWarnings("all")
public class JavaccJsonParser implements JsonParser, JavaccJsonParserConstants
{
/**
* This constructor does not create a ready-to-roll parser. One of the
* {@link #ReInit} methods should be called first.
*/
public JavaccJsonParser()
{
this(new StringReader(""));
}
/* (non-Javadoc)
* @see org.directwebremoting.json.parse.JsonParser#parse(java.io.Reader, org.directwebremoting.json.parse.JsonDecoder)
*/
public Object parse(Reader reader, JsonDecoder decoder) throws JsonParseException
{
ReInit(reader);
try
{
top(decoder);
}
catch (TokenMgrError ex)
{
throw new JsonParseException(ex.getMessage());
}
return decoder.getRoot();
}
final public void top(JsonDecoder decoder) throws ParseException, JsonParseException
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 12:
object(decoder, null);
break;
case 16:
array(decoder, null);
break;
default:
jj_la1[0] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
final public void object(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
decoder.beginObject(propertyName);
jj_consume_token(12);
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case QUOTE:
pair(decoder);
label_1: while (true)
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 13:
;
break;
default:
jj_la1[1] = jj_gen;
break label_1;
}
jj_consume_token(13);
pair(decoder);
}
break;
default:
jj_la1[2] = jj_gen;
;
}
jj_consume_token(14);
decoder.endObject(propertyName);
}
final public void pair(JsonDecoder decoder) throws ParseException, JsonParseException
{
String propertyName;
propertyName = propertyName();
jj_consume_token(15);
value(decoder, propertyName);
}
final public void array(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
decoder.beginArray(propertyName);
jj_consume_token(16);
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case DIGITS:
case QUOTE:
case 12:
case 16:
case 18:
case 19:
case 20:
case 21:
value(decoder, null);
label_2: while (true)
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 13:
;
break;
default:
jj_la1[3] = jj_gen;
break label_2;
}
jj_consume_token(13);
value(decoder, null);
}
break;
default:
jj_la1[4] = jj_gen;
;
}
jj_consume_token(17);
decoder.endArray(propertyName);
}
final public void value(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case QUOTE:
string(decoder, propertyName);
break;
case DIGITS:
case 21:
number(decoder, propertyName);
break;
case 12:
object(decoder, propertyName);
break;
case 16:
array(decoder, propertyName);
break;
case 18:
case 19:
case 20:
literal(decoder, propertyName);
break;
default:
jj_la1[5] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
final public void literal(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 18:
jj_consume_token(18);
decoder.addBoolean(propertyName, true);
break;
case 19:
jj_consume_token(19);
decoder.addBoolean(propertyName, false);
break;
case 20:
jj_consume_token(20);
decoder.addNull(propertyName);
break;
default:
jj_la1[6] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
final public void number(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
String intPart = null;
String floatPart = null;
String expPart = null;
intPart = getIntPart();
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 22:
floatPart = getFloatPart();
break;
default:
jj_la1[7] = jj_gen;
;
}
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case E:
expPart = getExpPart();
break;
default:
jj_la1[8] = jj_gen;
;
}
decoder.addNumber(propertyName, intPart, floatPart, expPart);
// This is can help to reduce memory consumption
intPart = null;
floatPart = null;
expPart = null;
}
final public String getIntPart() throws ParseException, JsonParseException
{
String digits;
boolean negative = false;
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case 21:
jj_consume_token(21);
negative = true;
break;
default:
jj_la1[9] = jj_gen;
;
}
digits = getDigits();
if (negative)
{
{
if (true)
{
return "-" + digits;
}
}
}
{
if (true)
{
return digits;
}
}
throw new Error("Missing return statement in function");
}
final public String getFloatPart() throws ParseException, JsonParseException
{
String digits;
jj_consume_token(22);
digits = getDigits();
{
if (true)
{
return "." + digits;
}
}
throw new Error("Missing return statement in function");
}
final public String getExpPart() throws ParseException, JsonParseException
{
Token t;
String digits;
t = jj_consume_token(E);
digits = getDigits();
{
if (true)
{
return t.image + digits;
}
}
throw new Error("Missing return statement in function");
}
final public String getDigits() throws ParseException, JsonParseException
{
Token t;
t = jj_consume_token(DIGITS);
{
if (true)
{
return t.image;
}
}
throw new Error("Missing return statement in function");
}
final public String propertyName() throws ParseException, JsonParseException
{
StringBuilder builder = new StringBuilder();
jj_consume_token(QUOTE);
label_3: while (true)
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case CHAR:
case CNTRL_ESC:
case HEX_ESC:
;
break;
default:
jj_la1[10] = jj_gen;
break label_3;
}
getChar(builder);
}
jj_consume_token(ENDQUOTE);
{
if (true)
{
return builder.toString();
}
}
throw new Error("Missing return statement in function");
}
final public void string(JsonDecoder decoder, String propertyName) throws ParseException, JsonParseException
{
StringBuilder builder = new StringBuilder();
jj_consume_token(QUOTE);
label_4: while (true)
{
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case CHAR:
case CNTRL_ESC:
case HEX_ESC:
;
break;
default:
jj_la1[11] = jj_gen;
break label_4;
}
getChar(builder);
}
jj_consume_token(ENDQUOTE);
decoder.addString(propertyName, builder.toString());
}
final public void getChar(StringBuilder builder) throws ParseException
{
Token t;
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk)
{
case CHAR:
t = jj_consume_token(CHAR);
break;
case CNTRL_ESC:
t = jj_consume_token(CNTRL_ESC);
break;
case HEX_ESC:
t = jj_consume_token(HEX_ESC);
break;
default:
jj_la1[12] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
if (t.image.length() < 2)
{
builder.append(t.image.charAt(0));
}
else if (t.image.length() < 6)
{
char c = t.image.charAt(1);
switch (c)
{
case 'b':
builder.append((char) 8);
break;
case 'f':
builder.append((char) 12);
break;
case 'n':
builder.append((char) 10);
break;
case 'r':
builder.append((char) 13);
break;
case 't':
builder.append((char) 9);
break;
default:
builder.append(c);
}
}
else
{
// hex escape code
int i = Integer.valueOf(t.image.substring(2, 6), 16).intValue();
builder.append((char) i);
}
}
public JavaccJsonParserTokenManager token_source;
SimpleCharStream jj_input_stream;
public Token token, jj_nt;
private int jj_ntk;
private int jj_gen;
final private int[] jj_la1 = new int[13];
static private int[] jj_la1_0;
static
{
jj_la1_0();
}
private static void jj_la1_0()
{
jj_la1_0 = new int[] { 0x11000, 0x2000, 0x10, 0x2000, 0x3d1018, 0x3d1018, 0x1c0000, 0x400000, 0x4, 0x200000, 0x980, 0x980, 0x980, };
}
public JavaccJsonParser(java.io.InputStream stream)
{
this(stream, null);
}
public JavaccJsonParser(java.io.InputStream stream, String encoding)
{
try
{
jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1);
}
catch (java.io.UnsupportedEncodingException e)
{
throw new RuntimeException(e);
}
token_source = new JavaccJsonParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
public void ReInit(java.io.InputStream stream)
{
ReInit(stream, null);
}
public void ReInit(java.io.InputStream stream, String encoding)
{
try
{
jj_input_stream.ReInit(stream, encoding, 1, 1);
}
catch (java.io.UnsupportedEncodingException e)
{
throw new RuntimeException(e);
}
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
public JavaccJsonParser(java.io.Reader stream)
{
jj_input_stream = new SimpleCharStream(stream, 1, 1);
token_source = new JavaccJsonParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
public void ReInit(java.io.Reader stream)
{
jj_input_stream.ReInit(stream, 1, 1);
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
public JavaccJsonParser(JavaccJsonParserTokenManager tm)
{
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
public void ReInit(JavaccJsonParserTokenManager tm)
{
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 13; i++)
{
jj_la1[i] = -1;
}
}
final private Token jj_consume_token(int kind) throws ParseException
{
Token oldToken;
if ((oldToken = token).next != null)
{
token = token.next;
}
else
{
token = token.next = token_source.getNextToken();
}
jj_ntk = -1;
if (token.kind == kind)
{
jj_gen++;
return token;
}
token = oldToken;
jj_kind = kind;
throw generateParseException();
}
final public Token getNextToken()
{
if (token.next != null)
{
token = token.next;
}
else
{
token = token.next = token_source.getNextToken();
}
jj_ntk = -1;
jj_gen++;
return token;
}
final public Token getToken(int index)
{
Token t = token;
for (int i = 0; i < index; i++)
{
if (t.next != null)
{
t = t.next;
}
else
{
t = t.next = token_source.getNextToken();
}
}
return t;
}
final private int jj_ntk()
{
if ((jj_nt = token.next) == null)
{
return (jj_ntk = (token.next = token_source.getNextToken()).kind);
}
else
{
return (jj_ntk = jj_nt.kind);
}
}
private final java.util.Vector jj_expentries = new java.util.Vector();
private int[] jj_expentry;
private int jj_kind = -1;
public ParseException generateParseException()
{
jj_expentries.removeAllElements();
boolean[] la1tokens = new boolean[23];
for (int i = 0; i < 23; i++)
{
la1tokens[i] = false;
}
if (jj_kind >= 0)
{
la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 13; i++)
{
if (jj_la1[i] == jj_gen)
{
for (int j = 0; j < 32; j++)
{
if ((jj_la1_0[i] & (1 << j)) != 0)
{
la1tokens[j] = true;
}
}
}
}
for (int i = 0; i < 23; i++)
{
if (la1tokens[i])
{
jj_expentry = new int[1];
jj_expentry[0] = i;
jj_expentries.addElement(jj_expentry);
}
}
int[][] exptokseq = new int[jj_expentries.size()][];
for (int i = 0; i < jj_expentries.size(); i++)
{
exptokseq[i] = (int[]) jj_expentries.elementAt(i);
}
return new ParseException(token, exptokseq, tokenImage);
}
final public void enable_tracing()
{
}
final public void disable_tracing()
{
}
}
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