| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| LayoutLoader |
|
| 1.0;1 |
| 1 | package org.apache.turbine.modules; | |
| 2 | ||
| 3 | /* | |
| 4 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 5 | * or more contributor license agreements. See the NOTICE file | |
| 6 | * distributed with this work for additional information | |
| 7 | * regarding copyright ownership. The ASF licenses this file | |
| 8 | * to you under the Apache License, Version 2.0 (the | |
| 9 | * "License"); you may not use this file except in compliance | |
| 10 | * with the License. You may obtain a copy of the License at | |
| 11 | * | |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 13 | * | |
| 14 | * Unless required by applicable law or agreed to in writing, | |
| 15 | * software distributed under the License is distributed on an | |
| 16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 17 | * KIND, either express or implied. See the License for the | |
| 18 | * specific language governing permissions and limitations | |
| 19 | * under the License. | |
| 20 | */ | |
| 21 | ||
| 22 | import org.apache.turbine.Turbine; | |
| 23 | import org.apache.turbine.pipeline.PipelineData; | |
| 24 | ||
| 25 | /** | |
| 26 | * The purpose of this class is to allow one to load and execute | |
| 27 | * Layout modules. | |
| 28 | * | |
| 29 | * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> | |
| 30 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
| 31 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
| 32 | * @version $Id: LayoutLoader.java 1773378 2016-12-09 13:19:59Z tv $ | |
| 33 | */ | |
| 34 | 21 | public class LayoutLoader |
| 35 | extends GenericLoader<Layout> | |
| 36 | implements Loader<Layout> | |
| 37 | { | |
| 38 | /** The single instance of this class. */ | |
| 39 | 32 | private static LayoutLoader instance = new LayoutLoader(); |
| 40 | ||
| 41 | /** | |
| 42 | * These ctor's are private to force clients to use getInstance() | |
| 43 | * to access this class. | |
| 44 | */ | |
| 45 | private LayoutLoader() | |
| 46 | { | |
| 47 | 32 | super(); |
| 48 | 32 | } |
| 49 | ||
| 50 | /** | |
| 51 | * Attempts to load and execute the external layout. | |
| 52 | * | |
| 53 | * @param pipelineData Turbine information. | |
| 54 | * @param name Name of object that will execute the layout. | |
| 55 | * @throws Exception a generic exception. | |
| 56 | */ | |
| 57 | @Override | |
| 58 | public void exec(PipelineData pipelineData, String name) | |
| 59 | throws Exception | |
| 60 | { | |
| 61 | 6 | getAssembler(name).build(pipelineData); |
| 62 | 4 | } |
| 63 | ||
| 64 | /** | |
| 65 | * Pulls out an instance of the object by name. Name is just the | |
| 66 | * single name of the object. | |
| 67 | * | |
| 68 | * @param name Name of object instance. | |
| 69 | * @return A Layout with the specified name, or null. | |
| 70 | * @throws Exception a generic exception. | |
| 71 | */ | |
| 72 | @Override | |
| 73 | public Layout getAssembler(String name) | |
| 74 | throws Exception | |
| 75 | { | |
| 76 | 27 | return getAssembler(Layout.class, name); |
| 77 | } | |
| 78 | ||
| 79 | /** | |
| 80 | * @see org.apache.turbine.modules.Loader#getCacheSize() | |
| 81 | */ | |
| 82 | @Override | |
| 83 | public int getCacheSize() | |
| 84 | { | |
| 85 | 78 | return LayoutLoader.getConfiguredCacheSize(); |
| 86 | } | |
| 87 | ||
| 88 | /** | |
| 89 | * The method through which this class is accessed. | |
| 90 | * | |
| 91 | * @return The single instance of this class. | |
| 92 | */ | |
| 93 | public static LayoutLoader getInstance() | |
| 94 | { | |
| 95 | 72 | return instance; |
| 96 | } | |
| 97 | ||
| 98 | /** | |
| 99 | * Helper method to get the configured cache size for this module | |
| 100 | * | |
| 101 | * @return the configure cache size | |
| 102 | */ | |
| 103 | private static int getConfiguredCacheSize() | |
| 104 | { | |
| 105 | 78 | return Turbine.getConfiguration().getInt(Layout.CACHE_SIZE_KEY, |
| 106 | Layout.CACHE_SIZE_DEFAULT); | |
| 107 | } | |
| 108 | } |