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package org.webmacro.directive; |
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import org.webmacro.Context; |
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import org.webmacro.FastWriter; |
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import org.webmacro.PropertyException; |
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import org.webmacro.engine.BuildContext; |
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import org.webmacro.engine.BuildException; |
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import org.webmacro.engine.Variable; |
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import java.io.IOException; |
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| 43 | 0 | public class ParamDirective extends Directive |
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{ |
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private static final int PARAM_TARGET = 1; |
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private static final int PARAM_RESULT = 2; |
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private static final ArgDescriptor[] |
| 50 | 2 | myArgs = new ArgDescriptor[]{ |
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new LValueArg(PARAM_TARGET), |
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new AssignmentArg(), |
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new RValueArg(PARAM_RESULT) |
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}; |
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private static final DirectiveDescriptor |
| 57 | 2 | myDescr = new DirectiveDescriptor("param", null, myArgs, null); |
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public static DirectiveDescriptor getDescriptor () |
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{ |
| 61 | 6 | return myDescr; |
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} |
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public Object build (DirectiveBuilder builder, |
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BuildContext bc) |
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throws BuildException |
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{ |
| 68 | 0 | Variable target = null; |
| 69 | 0 | Object result = null; |
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try |
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{ |
| 72 | 0 | target = (Variable) builder.getArg(PARAM_TARGET, bc); |
| 73 | 0 | result = builder.getArg(PARAM_RESULT, bc); |
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} |
| 75 | 0 | catch (ClassCastException e) |
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{ |
| 77 | 0 | throw new NotVariableBuildException(myDescr.name, e); |
| 78 | 0 | } |
| 79 | 0 | if (!target.isSimpleName()) |
| 80 | 0 | throw new NotSimpleVariableBuildException(myDescr.name); |
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try |
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{ |
| 83 | 0 | target.setValue(bc, result); |
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} |
| 85 | 0 | catch (PropertyException e) |
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{ |
| 87 | 0 | throw new BuildException("#param: Exception setting variable " |
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+ target.toString(), e); |
| 89 | 0 | } |
| 90 | 0 | return new SetDirective(target, result); |
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} |
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public void write (FastWriter out, Context context) |
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throws PropertyException, IOException |
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{ |
| 96 | 0 | } |
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} |
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