| Clover coverage report - Code Coverage for hivemind release 1.2.1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| InstanceCreationUtils.java | 100% | 100% | 100% | 100% |
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| 1 | // Copyright 2005 The Apache Software Foundation | |
| 2 | // | |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 | // you may not use this file except in compliance with the License. | |
| 5 | // You may obtain a copy of the License at | |
| 6 | // | |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 | // | |
| 9 | // Unless required by applicable law or agreed to in writing, software | |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 | // See the License for the specific language governing permissions and | |
| 13 | // limitations under the License. | |
| 14 | ||
| 15 | package org.apache.hivemind.util; | |
| 16 | ||
| 17 | import org.apache.hivemind.ApplicationRuntimeException; | |
| 18 | import org.apache.hivemind.HiveMind; | |
| 19 | import org.apache.hivemind.Location; | |
| 20 | import org.apache.hivemind.internal.Module; | |
| 21 | ||
| 22 | /** | |
| 23 | * Code for creating an instance, possibly setting its {@link org.apache.hivemind.Location}, and | |
| 24 | * possibly initializing its properties. | |
| 25 | * | |
| 26 | * @author Howard M. Lewis Ship | |
| 27 | * @since 1.1 | |
| 28 | */ | |
| 29 | public class InstanceCreationUtils | |
| 30 | { | |
| 31 | /** | |
| 32 | * Creates an instance. | |
| 33 | * | |
| 34 | * @param module | |
| 35 | * the referencing module, used to resolve partial class names | |
| 36 | * @param initializer | |
| 37 | * The name of the class to instantiate, possibly followed by a list of properties | |
| 38 | * and values. I.e. <code>com.examples.MyBean,property=value</code>. | |
| 39 | * @param location | |
| 40 | * The location to assign to the newly created instance, if it implements | |
| 41 | * {@link org.apache.hivemind.LocationHolder}. Also the location used to report | |
| 42 | * errors creating or configuring the instance. | |
| 43 | */ | |
| 44 | 18783 | public static Object createInstance(Module module, String initializer, Location location) |
| 45 | { | |
| 46 | 18780 | int commax = initializer.indexOf(','); |
| 47 | ||
| 48 | 18787 | String className = (commax < 0) ? initializer : initializer.substring(0, commax); |
| 49 | ||
| 50 | 18787 | Class objectClass = module.resolveType(className); |
| 51 | ||
| 52 | 18787 | try |
| 53 | { | |
| 54 | 18778 | Object result = objectClass.newInstance(); |
| 55 | ||
| 56 | 18784 | HiveMind.setLocation(result, location); |
| 57 | ||
| 58 | 18780 | if (commax > 0) |
| 59 | 6 | PropertyUtils.configureProperties(result, initializer.substring(commax + 1)); |
| 60 | ||
| 61 | 18783 | return result; |
| 62 | } | |
| 63 | catch (Exception ex) | |
| 64 | { | |
| 65 | // JDK 1.4 produces a good message here, but JDK 1.3 does not, so we | |
| 66 | // create our own. | |
| 67 | ||
| 68 | 4 | throw new ApplicationRuntimeException(UtilMessages.unableToInstantiateInstanceOfClass( |
| 69 | objectClass, | |
| 70 | ex), location, ex); | |
| 71 | } | |
| 72 | ||
| 73 | } | |
| 74 | } |
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