/* * Copyright 2005-2013 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.ldap.core; import org.springframework.ldap.support.LdapUtils; import javax.naming.NameClassPair; import javax.naming.directory.Attributes; import javax.naming.directory.SearchResult; /** * A CollectingNameClassPairCallbackHandler to wrap an {@link AttributesMapper}. * That is, the found object is extracted from the {@link Attributes} of each * {@link SearchResult}, and then passed to the specified * {@link AttributesMapper} for translation. * * @author Mattias Hellborg Arthursson * @author Ulrik Sandberg * @since 1.2 */ public class AttributesMapperCallbackHandler<T> extends CollectingNameClassPairCallbackHandler<T> { private AttributesMapper<T> mapper; /** * Constructs a new instance around the specified {@link AttributesMapper}. * * @param mapper the target mapper. */ public AttributesMapperCallbackHandler(AttributesMapper<T> mapper) { this.mapper = mapper; } /** * Cast the NameClassPair to a SearchResult and pass its attributes to the * {@link AttributesMapper}. * * @param nameClassPair a <code> SearchResult</code> instance. * @return the Object returned from the mapper. */ public T getObjectFromNameClassPair(NameClassPair nameClassPair) { if (!(nameClassPair instanceof SearchResult)) { throw new IllegalArgumentException("Parameter must be an instance of SearchResult"); } SearchResult searchResult = (SearchResult) nameClassPair; Attributes attributes = searchResult.getAttributes(); try { return mapper.mapFromAttributes(attributes); } catch (javax.naming.NamingException e) { throw LdapUtils.convertLdapException(e); } } }