1 /* 2 * Copyright [2007] [University Corporation for Advanced Internet Development, Inc.] 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.opensaml.xml.security.keyinfo; 18 19 import java.util.Collection; 20 import java.util.Collections; 21 import java.util.HashMap; 22 import java.util.Map; 23 24 import org.opensaml.xml.security.credential.Credential; 25 26 /** 27 * A manager for {@link KeyInfoGeneratorFactory} instances. Factories are uniquely indexed according to the 28 * value returned by {@link KeyInfoGeneratorFactory#getCredentialType()}. 29 */ 30 public class KeyInfoGeneratorManager { 31 32 /** The factories being managed, indexed by credential type. */ 33 private Map<Class<? extends Credential>, KeyInfoGeneratorFactory> factories; 34 35 /** Constructor. */ 36 public KeyInfoGeneratorManager() { 37 factories = new HashMap<Class<? extends Credential>, KeyInfoGeneratorFactory>(5); 38 } 39 40 /** 41 * Register a factory within this manager instance. If a factory already exists 42 * for that credential type, it will be replaced. 43 * 44 * @param factory the factory to register 45 */ 46 public void registerFactory(KeyInfoGeneratorFactory factory) { 47 factories.put(factory.getCredentialType(), factory); 48 } 49 50 /** 51 * De-register a factory within this manager instance. 52 * 53 * @param factory the factory to de-register 54 */ 55 public void deregisterFactory(KeyInfoGeneratorFactory factory) { 56 factories.remove(factory.getCredentialType()); 57 } 58 59 /** 60 * Get the (unmodifiable) collection of all factories managed by this manager. 61 * 62 * @return the collection of managed factories 63 */ 64 public Collection<KeyInfoGeneratorFactory> getFactories() { 65 return Collections.unmodifiableCollection(factories.values()); 66 } 67 68 /** 69 * Get the factory which produces KeyInfoGenerators which can handle 70 * the specified credential. 71 * 72 * @param credential the credential for which to locate a factory 73 * @return a KeyInfoGeneratorFactory instance appropriate for the credential 74 */ 75 public KeyInfoGeneratorFactory getFactory(Credential credential) { 76 return factories.get(credential.getCredentialType()); 77 } 78 79 }