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 @ 44397
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package org.gvsig.expressionevaluator.impl; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Grammar; |
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import org.gvsig.expressionevaluator.GrammarSet; |
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import org.gvsig.expressionevaluator.Statement; |
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import org.gvsig.expressionevaluator.Statement.StatementContext; |
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/**
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*
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* @author jjdelcerro
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*/
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public class DefaultGrammarSet implements GrammarSet { |
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private final List<Grammar> grammars; |
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public DefaultGrammarSet() {
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this.grammars = new ArrayList<>(); |
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} |
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@Override
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public Statement getApplicableStatement(StatementContext context) { |
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for (Grammar grammar : this.grammars) { |
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Statement stmt = grammar.getApplicableStatement(context);
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if( stmt != null ) { |
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return stmt;
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} |
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} |
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return null; |
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} |
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@Override
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public boolean isReservedWord(String id) { |
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for (Grammar grammar : this.grammars) { |
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if( grammar.isReservedWord(id) ) {
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return true; |
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} |
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} |
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return false; |
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} |
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public boolean contains(Grammar grammar) { |
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if( grammar == null ) { |
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return false; |
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} |
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for (Grammar theGrammar : this.grammars) { |
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if( StringUtils.equalsIgnoreCase(theGrammar.getName(), grammar.getName()) ) {
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return true; |
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} |
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} |
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return false; |
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} |
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@Override
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public void add(Grammar grammar) { |
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if( grammar == null ) { |
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return;
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} |
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if( this.contains(grammar) ) { |
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throw new IllegalArgumentException("The grammar set already contains the grammar '"+grammar+"'."); |
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} |
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this.grammars.add(grammar);
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} |
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@Override
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public Grammar get(int i) { |
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return this.grammars.get(i); |
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} |
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@Override
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public int size() { |
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return this.grammars.size(); |
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} |
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@Override
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public boolean isEmpty() { |
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return this.grammars.isEmpty(); |
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} |
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@Override
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public List<Grammar> toList() { |
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return Collections.unmodifiableList(this.grammars); |
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} |
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@Override
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public Iterator<Grammar> iterator() { |
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return this.grammars.iterator(); |
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} |
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} |