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| org.apache.commons.jelly.tags.beanshell.BeanShellExpression |
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| 1 | /* |
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| 2 | * Copyright 2002,2004 The Apache Software Foundation. |
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| 3 | * |
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | * you may not use this file except in compliance with the License. |
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| 6 | * You may obtain a copy of the License at |
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| 7 | * |
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | * |
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| 10 | * Unless required by applicable law or agreed to in writing, software |
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 13 | * See the License for the specific language governing permissions and |
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| 14 | * limitations under the License. |
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| 15 | */ |
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| 16 | package org.apache.commons.jelly.tags.beanshell; |
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| 17 | ||
| 18 | import org.apache.commons.jelly.JellyContext; |
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| 19 | import org.apache.commons.jelly.expression.ExpressionSupport; |
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| 20 | ||
| 21 | import org.apache.commons.logging.Log; |
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| 22 | import org.apache.commons.logging.LogFactory; |
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| 23 | ||
| 24 | ||
| 25 | /** Represents a <a href="http://www.beanshell.org">beanshell</a> expression |
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| 26 | * |
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| 27 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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| 28 | * @version $Revision: 155420 $ |
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| 29 | */ |
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| 30 | public class BeanShellExpression extends ExpressionSupport { |
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| 31 | ||
| 32 | /** The Log to which logging calls will be made. */ |
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| 33 | 6 | private static final Log log = LogFactory.getLog( BeanShellExpression.class ); |
| 34 | ||
| 35 | /** The expression */ |
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| 36 | private String text; |
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| 37 | ||
| 38 | 18 | public BeanShellExpression(String text) { |
| 39 | 18 | this.text = text; |
| 40 | 18 | } |
| 41 | ||
| 42 | // Expression interface |
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| 43 | //------------------------------------------------------------------------- |
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| 44 | public String getExpressionText() { |
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| 45 | 0 | return "${" + text + "}"; |
| 46 | } |
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| 47 | ||
| 48 | public Object evaluate(JellyContext context) { |
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| 49 | try { |
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| 50 | 18 | JellyInterpreter interpreter = new JellyInterpreter(); |
| 51 | 18 | interpreter.setJellyContext(context); |
| 52 | ||
| 53 | 18 | if ( log.isDebugEnabled() ) { |
| 54 | 0 | log.debug( "Evaluating beanshell: " + text ); |
| 55 | } |
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| 56 | ||
| 57 | 18 | return interpreter.eval( text ); |
| 58 | } |
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| 59 | 0 | catch (Exception e) { |
| 60 | 0 | log.warn( "Caught exception evaluating: " + text + ". Reason: " + e, e ); |
| 61 | 0 | return null; |
| 62 | } |
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| 63 | } |
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| 64 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |