svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.api / src / main / java / org / gvsig / expressionevaluator / spi / formatter / value / Getattr.java @ 46010
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package org.gvsig.expressionevaluator.spi.formatter.value; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_GETATTR; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Function; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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import org.gvsig.expressionevaluator.Formatter; |
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/**
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*
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* @author jjdelcerro
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*/
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public class Getattr implements Formatter<Value> { |
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private final Formatter<Value> formatter; |
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public Getattr(Formatter<Value> formatter) { |
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this.formatter = formatter;
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} |
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@Override
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public boolean canApply(ExpressionBuilder.Value value) { |
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if (value instanceof ExpressionBuilder.Function) { |
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return StringUtils.equalsIgnoreCase(FUNCTION_GETATTR, ((Function) value).name());
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} |
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return false; |
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} |
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@Override
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public String format(Value function0) { |
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Function function = (Function) function0; |
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Value obj = function.parameters().get(0);
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Value attr = function.parameters().get(1);
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if( attr instanceof ExpressionBuilder.Variable && |
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((ExpressionBuilder.Variable)attr).name()instanceof CharSequence) { |
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return obj.toString(formatter)+".\""+ ((ExpressionBuilder.Variable)attr).name().toString()+"\""; |
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} else if( attr instanceof ExpressionBuilder.Constant && |
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((ExpressionBuilder.Constant)attr).value() instanceof CharSequence) { |
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return obj.toString(formatter)+"."+ ((ExpressionBuilder.Constant)attr).value().toString(); |
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} else {
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return "GETATTR("+obj.toString(formatter)+","+attr.toString(formatter)+")"; |
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} |
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} |
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} |