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org.apache.commons.jexl.util.GetExecutor |
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1 | /* |
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2 | * Copyright 2000-2001,2004 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 | ||
17 | package org.apache.commons.jexl.util; |
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18 | ||
19 | import java.lang.reflect.InvocationTargetException; |
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20 | ||
21 | import org.apache.commons.logging.Log; |
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22 | ||
23 | ||
24 | /** |
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25 | * Executor that simply tries to execute a get(key) |
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26 | * operation. This will try to find a get(key) method |
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27 | * for any type of object, not just objects that |
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28 | * implement the Map interface as was previously |
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29 | * the case. |
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30 | * |
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31 | * @since 1.0 |
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32 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> |
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33 | * @version $Id: GetExecutor.java 398171 2006-04-29 14:57:29Z dion $ |
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34 | */ |
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35 | public class GetExecutor extends AbstractExecutor { |
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36 | /** |
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37 | * Container to hold the 'key' part of |
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38 | * get(key). |
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39 | */ |
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40 | 1 | private final Object[] args = new Object[1]; |
41 | ||
42 | /** |
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43 | * Default constructor. |
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44 | * |
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45 | * @param r The instance log. |
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46 | * @param ispect The JEXL introspector. |
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47 | * @param c The class being examined. |
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48 | * @param key The key for the get(key) operation. |
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49 | * @throws Exception Failure while trying to obtain the pertinent method. |
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50 | */ |
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51 | public GetExecutor(Log r, |
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52 | org.apache.commons.jexl.util.introspection.Introspector ispect, |
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53 | 1 | Class c, String key) throws Exception { |
54 | 1 | rlog = r; |
55 | 1 | args[0] = key; |
56 | 1 | method = ispect.getMethod(c, "get", args); |
57 | 1 | } |
58 | ||
59 | /** |
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60 | * {@inheritDoc} |
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61 | */ |
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62 | public Object execute(Object o) |
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63 | throws IllegalAccessException, InvocationTargetException { |
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64 | 1 | if (method == null) { |
65 | 1 | return null; |
66 | } |
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67 | ||
68 | 0 | return method.invoke(o, args); |
69 | } |
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70 | ||
71 | } |
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72 |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |