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 / function / programming / URLFunction.java @ 44207
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1 | 44138 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.programming; |
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2 | 43512 | jjdelcerro | |
3 | 44181 | jjdelcerro | import java.io.File; |
4 | import java.net.URI; |
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5 | import java.net.URL; |
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6 | 43512 | jjdelcerro | import org.apache.commons.lang3.Range; |
7 | 44138 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionRuntimeException; |
8 | 43939 | jjdelcerro | import org.gvsig.expressionevaluator.Function; |
9 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
10 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
11 | 44181 | jjdelcerro | import static org.gvsig.tools.dataTypes.DataTypes.URL; |
12 | 43512 | jjdelcerro | |
13 | 44181 | jjdelcerro | public class URLFunction extends AbstractFunction { |
14 | 43512 | jjdelcerro | |
15 | 44181 | jjdelcerro | public static final String NAME = "URL"; |
16 | 44138 | jjdelcerro | |
17 | 44181 | jjdelcerro | public URLFunction() {
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18 | 44138 | jjdelcerro | super(Function.GROUP_PROGRAMMING,
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19 | NAME, |
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20 | 44181 | jjdelcerro | Range.is(1),
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21 | 44138 | jjdelcerro | null,
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22 | null,
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23 | null,
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24 | 44098 | jjdelcerro | "Object",
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25 | false
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26 | ); |
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27 | 43512 | jjdelcerro | } |
28 | 44138 | jjdelcerro | |
29 | 43512 | jjdelcerro | @Override
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30 | 44138 | jjdelcerro | public boolean allowConstantFolding() { |
31 | return false; |
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32 | } |
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33 | |||
34 | @Override
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35 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) throws Exception { |
36 | 44138 | jjdelcerro | Object value;
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37 | Object obj = getObject(args, 0); |
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38 | if( obj == null ) { |
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39 | 44181 | jjdelcerro | return null; |
40 | } |
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41 | if( obj instanceof URL ) { |
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42 | return obj;
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43 | 44138 | jjdelcerro | } else if( obj instanceof CharSequence ) { |
44 | 44181 | jjdelcerro | value = new URL(((CharSequence)obj).toString()); |
45 | } else if( obj instanceof File ) { |
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46 | value = ((File)obj).toURI().toURL();
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47 | } else if( obj instanceof URI ) { |
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48 | value = ((URI)obj).toURL();
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49 | 43939 | jjdelcerro | } else {
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50 | 44181 | jjdelcerro | throw new ExpressionRuntimeException("The "+NAME+" function require a File, URI or a String and a received a '"+obj.getClass().getSimpleName()+"'."); |
51 | 43939 | jjdelcerro | } |
52 | 44138 | jjdelcerro | return value;
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53 | 43512 | jjdelcerro | } |
54 | |||
55 | } |