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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| DispatchingObjectStore.java | 100% | 87.5% | 100% | 90.9% |
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| 1 | /* | |
| 2 | * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions are met: | |
| 6 | * | |
| 7 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 8 | * this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 10 | * this list of conditions and the following disclaimer in the documentation | |
| 11 | * and/or other materials provided with the distribution. | |
| 12 | * 3. The end-user documentation included with the redistribution, if any, must | |
| 13 | * include the following acknowledgment: | |
| 14 | * | |
| 15 | * "This product includes software developed by Gargoyle Software Inc. | |
| 16 | * (http://www.GargoyleSoftware.com/)." | |
| 17 | * | |
| 18 | * Alternately, this acknowledgment may appear in the software itself, if | |
| 19 | * and wherever such third-party acknowledgments normally appear. | |
| 20 | * 4. The name "Gargoyle Software" must not be used to endorse or promote | |
| 21 | * products derived from this software without prior written permission. | |
| 22 | * For written permission, please contact info@GargoyleSoftware.com. | |
| 23 | * 5. Products derived from this software may not be called "GSBase", nor may | |
| 24 | * "GSBase" appear in their name, without prior written permission of | |
| 25 | * Gargoyle Software Inc. | |
| 26 | * | |
| 27 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
| 28 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 29 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE | |
| 30 | * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 31 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 32 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| 33 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 36 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 37 | */ | |
| 38 | package com.gargoylesoftware.base.objectstore; | |
| 39 | ||
| 40 | import java.util.Collections; | |
| 41 | import java.util.Map; | |
| 42 | ||
| 43 | /** | |
| 44 | * An object store that just dispatches commands to other object stores | |
| 45 | * | |
| 46 | * @version $Revision: 1.6 $ | |
| 47 | * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> | |
| 48 | */ | |
| 49 | public class DispatchingObjectStore extends ObjectStore { | |
| 50 | ||
| 51 | private final Map dispatchMap_; | |
| 52 | private final Map resourceFactoryMap_; | |
| 53 | ||
| 54 | ||
| 55 | /** | |
| 56 | * Create an instance. If you use this constructor then you must | |
| 57 | * override findStoreClass() since the dispatchMap has not been populated | |
| 58 | * | |
| 59 | * @param nameToResourceFactoryMap keys are names, values are the | |
| 60 | * resource factory objects that are represented by the name. This map | |
| 61 | * will be passed into any newly created ObjectStore's via the method | |
| 62 | * setResourceFactoryMap() | |
| 63 | */ | |
| 64 | 1 | protected DispatchingObjectStore(final Map nameToResourceFactoryMap) { |
| 65 | 1 | dispatchMap_ = Collections.EMPTY_MAP; |
| 66 | 1 | resourceFactoryMap_ = nameToResourceFactoryMap; |
| 67 | } | |
| 68 | ||
| 69 | /** | |
| 70 | * Create an instance | |
| 71 | * @param commandToStoreMap A map containing command to store mappings. Keys | |
| 72 | * and values must be class objects. | |
| 73 | * @param nameToResourceFactoryMap keys are names, values are the | |
| 74 | * resource factory objects that are represented by the name. This map | |
| 75 | * will be passed into any newly created ObjectStore's via the method | |
| 76 | * setResourceFactoryMap() | |
| 77 | */ | |
| 78 | 3 | public DispatchingObjectStore( final Map commandToStoreMap, |
| 79 | final Map nameToResourceFactoryMap ) { | |
| 80 | 3 | assertNotNull("commandToStoreMap", commandToStoreMap); |
| 81 | 2 | assertNotNull("nameToResourceFactoryMap", nameToResourceFactoryMap); |
| 82 | ||
| 83 | 2 | dispatchMap_ = commandToStoreMap; |
| 84 | 2 | resourceFactoryMap_ = nameToResourceFactoryMap; |
| 85 | } | |
| 86 | ||
| 87 | ||
| 88 | /** | |
| 89 | * Perform the dispatching. | |
| 90 | * | |
| 91 | * @param command The command to dispatch | |
| 92 | * @return The result of the command after the other store has processed it | |
| 93 | */ | |
| 94 | 3 | protected Object executeImpl( |
| 95 | final ObjectStoreCommand command ) { | |
| 96 | ||
| 97 | 3 | return findStore(command).execute(command); |
| 98 | } | |
| 99 | ||
| 100 | ||
| 101 | /** | |
| 102 | * Find the ObjectStore for the specified command | |
| 103 | * | |
| 104 | * @param command The command for which we are finding the store | |
| 105 | * @return The object store | |
| 106 | * @throws ObjectStoreCommandNotSupportedException If we cannot find a | |
| 107 | * store for the specified command | |
| 108 | * @throws ObjectStoreException if an error occurs when finding or | |
| 109 | * creating an object store | |
| 110 | */ | |
| 111 | 2 | protected ObjectStore findStore( |
| 112 | final ObjectStoreCommand command ) | |
| 113 | throws | |
| 114 | ObjectStoreCommandNotSupportedException, | |
| 115 | ObjectStoreException { | |
| 116 | ||
| 117 | 2 | final Class storeClass = (Class)dispatchMap_.get(command.getClass()); |
| 118 | 2 | if( storeClass == null ) { |
| 119 | 1 | throw new ObjectStoreCommandNotSupportedException(command); |
| 120 | } | |
| 121 | ||
| 122 | 1 | try { |
| 123 | 1 | final ObjectStore store = (ObjectStore)storeClass.newInstance(); |
| 124 | 1 | store.setResourceFactoryMap(resourceFactoryMap_); |
| 125 | 1 | return store; |
| 126 | } | |
| 127 | catch( IllegalAccessException e ) { | |
| 128 | 0 | throw new ObjectStoreException(e); |
| 129 | } | |
| 130 | catch( final InstantiationException e ) { | |
| 131 | 0 | throw new ObjectStoreException(e); |
| 132 | } | |
| 133 | } | |
| 134 | } |
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