| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 |
| * |
| * http://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.apache.xml.security.stax.config; |
| |
| import org.apache.xml.security.exceptions.XMLSecurityException; |
| import org.apache.xml.security.stax.ext.XMLSecurityConstants; |
| import org.apache.xml.security.utils.ClassLoaderUtils; |
| import org.apache.xml.security.configuration.TransformAlgorithmType; |
| import org.apache.xml.security.configuration.TransformAlgorithmsType; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Mapping between JCE id and xmlsec uri's for algorithms |
| * |
| */ |
| public final class TransformerAlgorithmMapper { |
| |
| private static Map<String, Class<?>> algorithmsClassMapInOut; |
| private static Map<String, Class<?>> algorithmsClassMapIn; |
| private static Map<String, Class<?>> algorithmsClassMapOut; |
| |
| private TransformerAlgorithmMapper() { |
| } |
| |
| protected static synchronized void init(TransformAlgorithmsType transformAlgorithms, |
| Class<?> callingClass) throws Exception { |
| List<TransformAlgorithmType> algorithms = transformAlgorithms.getTransformAlgorithm(); |
| algorithmsClassMapInOut = new HashMap<>(); |
| algorithmsClassMapIn = new HashMap<>(); |
| algorithmsClassMapOut = new HashMap<>(); |
| |
| for (int i = 0; i < algorithms.size(); i++) { |
| TransformAlgorithmType algorithmType = algorithms.get(i); |
| if (algorithmType.getINOUT() == null) { |
| algorithmsClassMapInOut.put(algorithmType.getURI(), |
| ClassLoaderUtils.loadClass(algorithmType.getJAVACLASS(), callingClass)); |
| } else if ("IN".equals(algorithmType.getINOUT().value())) { |
| algorithmsClassMapIn.put(algorithmType.getURI(), |
| ClassLoaderUtils.loadClass(algorithmType.getJAVACLASS(), callingClass)); |
| } else if ("OUT".equals(algorithmType.getINOUT().value())) { |
| algorithmsClassMapOut.put(algorithmType.getURI(), |
| ClassLoaderUtils.loadClass(algorithmType.getJAVACLASS(), callingClass)); |
| } else { |
| throw new IllegalArgumentException("INOUT parameter " + algorithmType.getINOUT().value() + " unsupported"); |
| } |
| } |
| } |
| |
| public static Class<?> getTransformerClass(String algoURI, XMLSecurityConstants.DIRECTION direction) throws XMLSecurityException { |
| Class<?> clazz = null; |
| |
| if (XMLSecurityConstants.DIRECTION.IN == direction) { |
| clazz = algorithmsClassMapIn.get(algoURI); |
| } else if (XMLSecurityConstants.DIRECTION.OUT == direction) { |
| clazz = algorithmsClassMapOut.get(algoURI); |
| } |
| |
| if (clazz == null) { |
| clazz = algorithmsClassMapInOut.get(algoURI); |
| } |
| if (clazz == null) { |
| throw new XMLSecurityException("signature.Transform.UnknownTransform", |
| new Object[] {algoURI}); |
| } |
| return clazz; |
| } |
| } |