001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.discovery.resource.names; 018 019 import org.apache.commons.discovery.ResourceDiscover; 020 import org.apache.commons.discovery.ResourceNameDiscover; 021 import org.apache.commons.discovery.resource.ClassLoaders; 022 023 024 /** 025 * Provide JDK 1.3 style service discovery... 026 * 027 * The caller will first configure the discoverer by creating a 028 * root Discoverer for the files. 029 * 030 * @author Richard A. Sitze 031 * @author Craig R. McClanahan 032 * @author Costin Manolache 033 * @author James Strachan 034 */ 035 public class DiscoverServiceNames 036 extends DiscoverNamesInFile 037 implements ResourceNameDiscover 038 { 039 protected static final String SERVICE_HOME = "META-INF/services/"; 040 041 /** Construct a new service discoverer 042 */ 043 public DiscoverServiceNames() { 044 super(SERVICE_HOME, null); 045 } 046 047 /** 048 * Construct a new resource discoverer 049 */ 050 public DiscoverServiceNames(String prefix, String suffix) { 051 super((prefix == null) ? SERVICE_HOME : SERVICE_HOME + prefix, suffix); 052 } 053 054 /** 055 * Construct a new resource discoverer 056 */ 057 public DiscoverServiceNames(ClassLoaders loaders) { 058 super(loaders, SERVICE_HOME, null); 059 } 060 061 /** 062 * Construct a new resource discoverer 063 */ 064 public DiscoverServiceNames(ClassLoaders loaders, String prefix, String suffix) { 065 super(loaders, (prefix == null) ? SERVICE_HOME : SERVICE_HOME + prefix, suffix); 066 } 067 068 /** Construct a new service discoverer 069 */ 070 public DiscoverServiceNames(ResourceDiscover discoverer) { 071 super(discoverer, SERVICE_HOME, null); 072 } 073 074 /** Construct a new service discoverer 075 */ 076 public DiscoverServiceNames(ResourceDiscover discoverer, String prefix, String suffix) { 077 super(discoverer, (prefix == null) ? SERVICE_HOME : SERVICE_HOME + prefix, suffix); 078 } 079 }