Engine.java revision f33eae7e84eb6d3b0f4e86b59605bb3de73009f3
1adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/* 2adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * this work for additional information regarding copyright ownership. 5adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * (the "License"); you may not use this file except in compliance with 7adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the License. You may obtain a copy of the License at 8adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 9adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 11adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * See the License for the specific language governing permissions and 15adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * limitations under the License. 16adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 17adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 18adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 19adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project* @author Boris V. Kuznetsov 20adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project* @version $Revision$ 21adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project*/ 22adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 23adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpackage org.apache.harmony.security.fortress; 24adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 25adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.security.NoSuchAlgorithmException; 26adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.security.Provider; 27adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 282f9e468ed4985edfd5e351faf2089d91e561e41dElliott Hughesimport org.apache.harmony.security.Util; 29adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport org.apache.harmony.security.internal.nls.Messages; 30adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 31adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 32adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 33f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 34adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This class implements common functionality for all engine classes 35f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 36adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 37adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpublic class Engine { 38adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 39adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // Service name 40adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private String serviceName; 41adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 42adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // for getInstance(String algorithm, Object param) optimization: 43adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // previous result 44adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private Provider.Service returnedService; 45adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 46adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // previous parameter 47adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private String lastAlgorithm; 48adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 49adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private int refreshNumber; 50adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 51adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 52adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Provider 53adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 54adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public Provider provider; 55adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 56adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 57adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * SPI instance 58adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 59adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public Object spi; 60adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 61adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 62adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Access to package visible api in java.security 63adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 64adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public static SecurityAccess door; 65adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 66adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 67adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Creates a Engine object 68f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 69adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param service 70adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 71adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public Engine(String service) { 72adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project this.serviceName = service; 73adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 74adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 75adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 76f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 77adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Finds the appropriate service implementation and creates instance of the 78adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * class that implements corresponding Service Provider Interface. 79f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 80adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param algorithm 81adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param service 82adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws NoSuchAlgorithmException 83adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 84adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized void getInstance(String algorithm, Object param) 85adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throws NoSuchAlgorithmException { 86adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Provider.Service serv; 87adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 88adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (algorithm == null) { 89f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes throw new NoSuchAlgorithmException(Messages.getString("security.149")); 90adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 91adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Services.refresh(); 92adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (returnedService != null 932f9e468ed4985edfd5e351faf2089d91e561e41dElliott Hughes && Util.equalsIgnoreCase(algorithm, lastAlgorithm) 94adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project && refreshNumber == Services.refreshNumber) { 95adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project serv = returnedService; 96adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } else { 97adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (Services.isEmpty()) { 98f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes throw new NoSuchAlgorithmException(Messages.getString("security.14A", 99adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project serviceName, algorithm)); 100adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 1012f9e468ed4985edfd5e351faf2089d91e561e41dElliott Hughes serv = Services.getService(new StringBuilder(128) 102f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(serviceName).append(".").append( 1032f9e468ed4985edfd5e351faf2089d91e561e41dElliott Hughes Util.toUpperCase(algorithm)).toString()); 104adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (serv == null) { 105f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes throw new NoSuchAlgorithmException(Messages.getString("security.14A", 106adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project serviceName, algorithm)); 107adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 108adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project returnedService = serv; 109adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project lastAlgorithm = algorithm; 110adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project refreshNumber = Services.refreshNumber; 111adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 112adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project spi = serv.newInstance(param); 113adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project this.provider = serv.getProvider(); 114adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 115adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 116adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 117f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 118adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Finds the appropriate service implementation and creates instance of the 119adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * class that implements corresponding Service Provider Interface. 120f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes * 121adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param algorithm 122adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param service 123adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param provider 124adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws NoSuchAlgorithmException 125adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 126adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized void getInstance(String algorithm, Provider provider, 127adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Object param) throws NoSuchAlgorithmException { 128adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 129adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Provider.Service serv = null; 130adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (algorithm == null) { 131adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw new NoSuchAlgorithmException( 132f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes Messages.getString("security.14B", serviceName)); 133adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 134adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project serv = provider.getService(serviceName, algorithm); 135adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (serv == null) { 136f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes throw new NoSuchAlgorithmException(Messages.getString("security.14A", 137adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project serviceName, algorithm)); 138adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 139adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project spi = serv.newInstance(param); 140adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project this.provider = provider; 141adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 142adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 143adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project}