svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / DefaultGrammarSet.java @ 44154
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1 | 44139 | jjdelcerro | package org.gvsig.expressionevaluator.impl; |
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2 | |||
3 | import java.util.ArrayList; |
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4 | import java.util.Collections; |
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5 | import java.util.Iterator; |
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6 | import java.util.List; |
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7 | import org.apache.commons.lang3.StringUtils; |
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8 | import org.gvsig.expressionevaluator.Grammar; |
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9 | import org.gvsig.expressionevaluator.GrammarSet; |
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10 | import org.gvsig.expressionevaluator.Statement; |
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11 | import org.gvsig.expressionevaluator.Statement.StatementContext; |
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12 | |||
13 | /**
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14 | *
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15 | * @author jjdelcerro
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16 | */
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17 | public class DefaultGrammarSet implements GrammarSet { |
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18 | |||
19 | private final List<Grammar> grammars; |
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20 | |||
21 | public DefaultGrammarSet() {
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22 | this.grammars = new ArrayList<>(); |
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23 | } |
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24 | |||
25 | @Override
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26 | public Statement getApplicableStatement(StatementContext context) { |
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27 | for (Grammar grammar : this.grammars) { |
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28 | Statement stmt = grammar.getApplicableStatement(context);
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29 | if( stmt != null ) { |
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30 | return stmt;
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31 | } |
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32 | } |
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33 | return null; |
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34 | } |
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35 | |||
36 | @Override
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37 | public boolean isReservedWord(String id) { |
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38 | for (Grammar grammar : this.grammars) { |
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39 | if( grammar.isReservedWord(id) ) {
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40 | return true; |
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41 | } |
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42 | } |
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43 | return false; |
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44 | } |
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45 | |||
46 | public boolean contains(Grammar grammar) { |
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47 | if( grammar == null ) { |
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48 | return false; |
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49 | } |
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50 | for (Grammar theGrammar : this.grammars) { |
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51 | if( StringUtils.equalsIgnoreCase(theGrammar.getName(), grammar.getName()) ) {
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52 | return true; |
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53 | } |
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54 | } |
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55 | return false; |
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56 | } |
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57 | |||
58 | @Override
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59 | public void add(Grammar grammar) { |
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60 | if( grammar == null ) { |
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61 | return;
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62 | } |
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63 | if( this.contains(grammar) ) { |
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64 | throw new IllegalArgumentException("The grammar set already contains the grammar '"+grammar+"'."); |
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65 | } |
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66 | this.grammars.add(grammar);
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67 | } |
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68 | |||
69 | @Override
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70 | public Grammar get(int i) { |
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71 | return this.grammars.get(i); |
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72 | } |
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73 | |||
74 | @Override
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75 | public int size() { |
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76 | return this.grammars.size(); |
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77 | } |
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78 | |||
79 | @Override
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80 | public boolean isEmpty() { |
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81 | return this.grammars.isEmpty(); |
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82 | } |
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83 | |||
84 | @Override
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85 | public List<Grammar> toList() { |
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86 | return Collections.unmodifiableList(this.grammars); |
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87 | } |
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88 | |||
89 | @Override
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90 | public Iterator<Grammar> iterator() { |
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91 | return this.grammars.iterator(); |
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92 | } |
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93 | |||
94 | } |