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package org.melati.template.webmacro; |
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import org.melati.template.MarkupLanguage; |
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import org.webmacro.PropertyException; |
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import org.webmacro.Context; |
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import org.webmacro.Broker; |
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import org.webmacro.engine.EvaluationExceptionHandler; |
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import org.webmacro.engine.Variable; |
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import org.webmacro.util.Settings; |
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59 | 418 | public class PassbackEvaluationExceptionHandler |
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implements EvaluationExceptionHandler { |
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@Override |
63 | 0 | public void init(Broker b, Settings config) {} |
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@Override |
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public void evaluate(Variable variable, |
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Context context, |
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Exception problem) |
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throws PropertyException { |
70 | 3 | if (problem instanceof PropertyException.NoSuchVariableException |
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|| problem instanceof PropertyException.NullValueException |
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|| problem instanceof PropertyException.NullToStringException) |
73 | 0 | return; |
74 | 3 | throw new PropertyException("Failed to evaluate " + |
75 | 3 | variable.getVariableName() + ": " + problem,problem); |
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} |
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@Override |
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public String expand(Variable variable, |
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Context context, |
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Exception problem) |
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throws PropertyException { |
83 | 3 | MarkupLanguage ml = (MarkupLanguage)context.get("ml"); |
84 | 3 | if (ml == null) throw new PropertyException( |
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"Error, to use the Passback Evaluation Exception Handler, you must " + |
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"place your MarkupLanguage in the context as $ml" + |
87 | 0 | variable.getVariableName() + ": " + problem, problem); |
88 | 3 | Throwable underlying = problem; |
89 | 3 | if (problem instanceof PropertyException) { |
90 | 3 | PropertyException prob = (PropertyException)problem; |
91 | 3 | if (prob.getCause() != null) { |
92 | 3 | if (prob.getCause() instanceof PropertyException) |
93 | 3 | prob = (PropertyException)prob.getCause(); |
94 | 3 | underlying = prob.getCause(); |
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} |
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} |
97 | 3 | return ml.rendered(underlying); |
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} |
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@Override |
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public String warningString(String warningText) throws PropertyException { |
102 | 0 | throw new PropertyException("Evaluation warning: " + warningText); |
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} |
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@Override |
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public String errorString(String errorText) throws PropertyException { |
107 | 0 | throw new PropertyException("Evaluation error: " + errorText); |
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} |
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} |
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|