Source Code Cross Referenced for JSONParser.java in  » J2EE » Pustefix » de » schlund » pfixcore » webservice » json » parser » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Pustefix » de.schlund.pfixcore.webservice.json.parser 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* Generated By:JavaCC: Do not edit this line. JSONParser.java */
002:        package de.schlund.pfixcore.webservice.json.parser;
003:
004:        import java.io.File;
005:        import java.io.FileInputStream;
006:        import java.io.IOException;
007:        import java.io.InputStreamReader;
008:        import java.io.StringReader;
009:
010:        import de.schlund.pfixcore.webservice.json.JSONArray;
011:        import de.schlund.pfixcore.webservice.json.JSONObject;
012:        import de.schlund.pfixcore.webservice.json.ParserUtils;
013:
014:        public class JSONParser implements  JSONParserConstants {
015:
016:            Object jsonValue;
017:            String memberName;
018:
019:            public static void main(String[] args) {
020:                try {
021:                    String query = args[0];
022:                    query = load(new File(query), "UTF-8");
023:                    JSONParser parser = new JSONParser(new StringReader(query));
024:                    Object val = parser.getJSONValue();
025:                    System.out.println(ParserUtils.javaToJson(val));
026:                } catch (Exception x) {
027:                    x.printStackTrace();
028:                }
029:            }
030:
031:            public Object getJSONValue() throws Exception {
032:                if (jsonValue == null) {
033:                    value();
034:                }
035:                return jsonValue;
036:            }
037:
038:            public static String load(File file, String encoding)
039:                    throws IOException {
040:                FileInputStream fis = new FileInputStream(file);
041:                InputStreamReader reader = new InputStreamReader(fis, encoding);
042:                StringBuffer strBuf = new StringBuffer();
043:                char[] buffer = new char[4096];
044:                int i = 0;
045:                try {
046:                    while ((i = reader.read(buffer)) != -1)
047:                        strBuf.append(buffer, 0, i);
048:                } finally {
049:                    fis.close();
050:                }
051:                return strBuf.toString();
052:            }
053:
054:            final public void value() throws ParseException {
055:                Token valueToken;
056:                switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
057:                case LCB:
058:                    object();
059:                    break;
060:                case LSB:
061:                    array();
062:                    break;
063:                case QSTR:
064:                    valueToken = jj_consume_token(QSTR);
065:                    jsonValue = ParserUtils.jsonToJava(valueToken.image);
066:                    break;
067:                case NUM:
068:                    valueToken = jj_consume_token(NUM);
069:                    jsonValue = ParserUtils.parseNumber(valueToken.image);
070:                    break;
071:                case TRUE:
072:                    jj_consume_token(TRUE);
073:                    jsonValue = Boolean.TRUE;
074:                    break;
075:                case FALSE:
076:                    jj_consume_token(FALSE);
077:                    jsonValue = Boolean.FALSE;
078:                    break;
079:                case NULL:
080:                    jj_consume_token(NULL);
081:                    jsonValue = null;
082:                    break;
083:                case DATE:
084:                    valueToken = jj_consume_token(DATE);
085:                    jsonValue = ParserUtils.parseDate(valueToken.image);
086:                    break;
087:                default:
088:                    jj_la1[0] = jj_gen;
089:                    jj_consume_token(-1);
090:                    throw new ParseException();
091:                }
092:            }
093:
094:            final public void member() throws ParseException {
095:                Token memberNameToken;
096:                memberNameToken = jj_consume_token(QSTR);
097:                jj_consume_token(COL);
098:                value();
099:                memberName = ParserUtils.jsonToJava(memberNameToken.image);
100:            }
101:
102:            final public void object() throws ParseException {
103:                JSONObject jsonObject;
104:                jsonObject = new JSONObject();
105:                jj_consume_token(LCB);
106:                member();
107:                jsonObject.putMember(memberName, jsonValue);
108:                label_1: while (true) {
109:                    switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
110:                    case COM:
111:                        ;
112:                        break;
113:                    default:
114:                        jj_la1[1] = jj_gen;
115:                        break label_1;
116:                    }
117:                    jj_consume_token(COM);
118:                    member();
119:                    jsonObject.putMember(memberName, jsonValue);
120:                }
121:                jj_consume_token(RCB);
122:                jsonValue = jsonObject;
123:            }
124:
125:            final public void array() throws ParseException {
126:                JSONArray jsonArray;
127:                jsonArray = new JSONArray();
128:                jj_consume_token(LSB);
129:                switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
130:                case LCB:
131:                case LSB:
132:                case TRUE:
133:                case FALSE:
134:                case NULL:
135:                case QSTR:
136:                case NUM:
137:                case DATE:
138:                    value();
139:                    jsonArray.add(jsonValue);
140:                    label_2: while (true) {
141:                        switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
142:                        case COM:
143:                            ;
144:                            break;
145:                        default:
146:                            jj_la1[2] = jj_gen;
147:                            break label_2;
148:                        }
149:                        jj_consume_token(COM);
150:                        value();
151:                        jsonArray.add(jsonValue);
152:                    }
153:                    break;
154:                default:
155:                    jj_la1[3] = jj_gen;
156:                    ;
157:                }
158:                jj_consume_token(RSB);
159:                jsonValue = jsonArray;
160:            }
161:
162:            public JSONParserTokenManager token_source;
163:            SimpleCharStream jj_input_stream;
164:            public Token token, jj_nt;
165:            private int jj_ntk;
166:            private int jj_gen;
167:            final private int[] jj_la1 = new int[4];
168:            final static private int[] jj_la1_0 = new int[] { 0x6f140, 0x800,
169:                    0x800, 0x6f140, };
170:
171:            public JSONParser(java.io.InputStream stream) {
172:                this (stream, null);
173:            }
174:
175:            public JSONParser(java.io.InputStream stream, String encoding) {
176:                try {
177:                    jj_input_stream = new SimpleCharStream(stream, encoding, 1,
178:                            1);
179:                } catch (java.io.UnsupportedEncodingException e) {
180:                    throw new RuntimeException(e);
181:                }
182:                token_source = new JSONParserTokenManager(jj_input_stream);
183:                token = new Token();
184:                jj_ntk = -1;
185:                jj_gen = 0;
186:                for (int i = 0; i < 4; i++)
187:                    jj_la1[i] = -1;
188:            }
189:
190:            public void ReInit(java.io.InputStream stream) {
191:                ReInit(stream, null);
192:            }
193:
194:            public void ReInit(java.io.InputStream stream, String encoding) {
195:                try {
196:                    jj_input_stream.ReInit(stream, encoding, 1, 1);
197:                } catch (java.io.UnsupportedEncodingException e) {
198:                    throw new RuntimeException(e);
199:                }
200:                token_source.ReInit(jj_input_stream);
201:                token = new Token();
202:                jj_ntk = -1;
203:                jj_gen = 0;
204:                for (int i = 0; i < 4; i++)
205:                    jj_la1[i] = -1;
206:            }
207:
208:            public JSONParser(java.io.Reader stream) {
209:                jj_input_stream = new SimpleCharStream(stream, 1, 1);
210:                token_source = new JSONParserTokenManager(jj_input_stream);
211:                token = new Token();
212:                jj_ntk = -1;
213:                jj_gen = 0;
214:                for (int i = 0; i < 4; i++)
215:                    jj_la1[i] = -1;
216:            }
217:
218:            public void ReInit(java.io.Reader stream) {
219:                jj_input_stream.ReInit(stream, 1, 1);
220:                token_source.ReInit(jj_input_stream);
221:                token = new Token();
222:                jj_ntk = -1;
223:                jj_gen = 0;
224:                for (int i = 0; i < 4; i++)
225:                    jj_la1[i] = -1;
226:            }
227:
228:            public JSONParser(JSONParserTokenManager tm) {
229:                token_source = tm;
230:                token = new Token();
231:                jj_ntk = -1;
232:                jj_gen = 0;
233:                for (int i = 0; i < 4; i++)
234:                    jj_la1[i] = -1;
235:            }
236:
237:            public void ReInit(JSONParserTokenManager tm) {
238:                token_source = tm;
239:                token = new Token();
240:                jj_ntk = -1;
241:                jj_gen = 0;
242:                for (int i = 0; i < 4; i++)
243:                    jj_la1[i] = -1;
244:            }
245:
246:            final private Token jj_consume_token(int kind)
247:                    throws ParseException {
248:                Token oldToken;
249:                if ((oldToken = token).next != null)
250:                    token = token.next;
251:                else
252:                    token = token.next = token_source.getNextToken();
253:                jj_ntk = -1;
254:                if (token.kind == kind) {
255:                    jj_gen++;
256:                    return token;
257:                }
258:                token = oldToken;
259:                jj_kind = kind;
260:                throw generateParseException();
261:            }
262:
263:            final public Token getNextToken() {
264:                if (token.next != null)
265:                    token = token.next;
266:                else
267:                    token = token.next = token_source.getNextToken();
268:                jj_ntk = -1;
269:                jj_gen++;
270:                return token;
271:            }
272:
273:            final public Token getToken(int index) {
274:                Token t = token;
275:                for (int i = 0; i < index; i++) {
276:                    if (t.next != null)
277:                        t = t.next;
278:                    else
279:                        t = t.next = token_source.getNextToken();
280:                }
281:                return t;
282:            }
283:
284:            final private int jj_ntk() {
285:                if ((jj_nt = token.next) == null)
286:                    return (jj_ntk = (token.next = token_source.getNextToken()).kind);
287:                else
288:                    return (jj_ntk = jj_nt.kind);
289:            }
290:
291:            private java.util.Vector<int[]> jj_expentries = new java.util.Vector<int[]>();
292:            private int[] jj_expentry;
293:            private int jj_kind = -1;
294:
295:            public ParseException generateParseException() {
296:                jj_expentries.removeAllElements();
297:                boolean[] la1tokens = new boolean[19];
298:                for (int i = 0; i < 19; i++) {
299:                    la1tokens[i] = false;
300:                }
301:                if (jj_kind >= 0) {
302:                    la1tokens[jj_kind] = true;
303:                    jj_kind = -1;
304:                }
305:                for (int i = 0; i < 4; i++) {
306:                    if (jj_la1[i] == jj_gen) {
307:                        for (int j = 0; j < 32; j++) {
308:                            if ((jj_la1_0[i] & (1 << j)) != 0) {
309:                                la1tokens[j] = true;
310:                            }
311:                        }
312:                    }
313:                }
314:                for (int i = 0; i < 19; i++) {
315:                    if (la1tokens[i]) {
316:                        jj_expentry = new int[1];
317:                        jj_expentry[0] = i;
318:                        jj_expentries.addElement(jj_expentry);
319:                    }
320:                }
321:                int[][] exptokseq = new int[jj_expentries.size()][];
322:                for (int i = 0; i < jj_expentries.size(); i++) {
323:                    exptokseq[i] = (int[]) jj_expentries.elementAt(i);
324:                }
325:                return new ParseException(token, exptokseq, tokenImage);
326:            }
327:
328:            final public void enable_tracing() {
329:            }
330:
331:            final public void disable_tracing() {
332:            }
333:
334:        }
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