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1 package com.daffodilwoods.daffodildb.utils.parser;
2
3 import java.util.ArrayList  ;
4 import com.daffodilwoods.database.utility.P;
5 import java.lang.reflect.Field ;
6 import com.daffodilwoods.daffodildb.utils.DBStack;
7 import com.daffodilwoods.database.resource.*;
8
9 public class StringProductionRules extends ProductionRules{
10
11 public String XYZ = "XYZ";
13 char[] string;
14 String keyWord;
15
16 StringProductionRules(ClassLoader classLoader0){
17 super(classLoader0);
18 }
19
20 public void setString(String result1,String keyWord0){
21 this.result = result1.equalsIgnoreCase("'\\u0020'") ? " " : result1;
22 XYZ = (String )this.result;
23 this.keyWord = keyWord0;
24 ArrayList rules = new ArrayList ();
25 String xyz = nameOfRule == null ? (String )this.result : nameOfRule;
26 if ( keyWord == null ){
27 rules.add(xyz);
28 this.keyWord = nameOfRule;
29 }
30 else
31 rules.add(keyWord);
32 super.setProductionRules(rules);
33 string = ((String )result).toCharArray();
34 }
35
36 Object parsePart(ParseElements pe) throws DException{
37 if(pe.position >= pe.query.length() || pe.recursiveObject != null){
38 pe.parseException.setPosition(pe.getIndexPosition(pe.position));
39 return pe.parseException;
40 }
41
42 Object ob = parseComments(pe);
43 if(ob instanceof ParseException )
44 return ob;
45 pe.position = ((Integer )ob).intValue() ;
46
48
49
50 int cmp = checkString(pe.queryArray,string,pe.position);
51 if ( cmp == 0 ) {
52 pe.position += ((String )result).length();
53 if ( pe.position <= pe.queryArray.length){
54 return getObjectOfClass(result);
55 }
56 }
57 cmp = cmp > 0 ? 1 : cmp < 0 ? -1 : 0;
58 pe.parseException.setReturnType(cmp);
59 pe.parseException.setPosition(pe.getIndexPosition(pe.position));
60 return pe.parseException;
61 }
62
63 public void setProductionRuleName(String nameOfRule1){
64 String name = nameOfRule1.trim();
65 StringBuffer name1 = new StringBuffer ("S");
66 name1.append(name).append(name.hashCode());
67 super.setProductionRuleName(name1.toString());
68 }
69
70 private int checkString(char []source, char[] target,int position){
71 int compare = 0;
72 int i = position;
73 for(int j = 0; i < source.length && j < target.length && compare == 0; ++j,++i)
74 compare = source[i] - target[j];
75 return compare;
76 }
77
78 public Object getComparableObject(){
79 String result1 = (String )this.result;
80 if ( result1.equalsIgnoreCase(">=") || result1.equalsIgnoreCase("<=") ||
81 result1.equalsIgnoreCase("<>") || result1.equalsIgnoreCase("!=") ||
82 result1.equalsIgnoreCase("==") || result1.equalsIgnoreCase("&&") ||
83 result1.equalsIgnoreCase("||") )
84 return null;
85 return result1;
86 }
87
88 public Object getComparableObjectArray(){
89 return new String []{nameOfRule};
90 }
91
92
93 public String toString(){
94 return new StringBuffer ("[").append(nameOfRule).append("] SPR [").append(result).append("]").toString();
95 }
96
97 public Object getRecursiveObject(String nameOfRule,DBStack occuredRules){
98 if ( this.nameOfRule.equalsIgnoreCase(nameOfRule) )
99 return new Object []{this};
100 return null;
101 }
102
103 public Object getNonRecursiveObject(String nameOfRule,DBStack occuredRules){
104 if ( !(this.nameOfRule.equalsIgnoreCase(nameOfRule)) )
105 return new Object []{this};
106 return null;
107 }
108
109 public int hashCode(){
110 return result.hashCode();
111 }
112
113 Object getObjectOfClass(Object parsedObject) throws DException{
114 Object tempObject = null;
115 int i = 0;
116 try{
117 if ( classMaker == null ){
118 try{
119 Class cls = classLoader.loadClass(className);
120
121 loadFields(i,cls);
122 classMaker = cls;
123 }catch(NoClassDefFoundError ne){
124 throw ne;
125 }
126 }
127
128 tempObject = classMaker.newInstance();
129
130 ((Field )fields[0]).set(tempObject,parsedObject);
131 }catch(Exception E){
132 throw new DException("DSE0",new Object []{E.getMessage() });
133
134 }
135 return tempObject;
136 }
137 }
138 |
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