| /** |
| * 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.utils.resolver; |
| |
| import org.apache.xml.security.signature.XMLSignatureInput; |
| |
| /** |
| * During reference validation, we have to retrieve resources from somewhere. |
| * |
| * Extensions of this class must be thread-safe. |
| */ |
| public abstract class ResourceResolverSpi { |
| |
| /** |
| * This is the workhorse method used to resolve resources. |
| * @param context Context to use to resolve resources. |
| * |
| * @return the resource wrapped around a XMLSignatureInput |
| * |
| * @throws ResourceResolverException |
| */ |
| public abstract XMLSignatureInput engineResolveURI(ResourceResolverContext context) |
| throws ResourceResolverException; |
| |
| /** |
| * This method helps the {@link ResourceResolver} to decide whether a |
| * {@link ResourceResolverSpi} is able to perform the requested action. |
| * |
| * @param context Context in which to do resolution. |
| * @return true if the engine can resolve the uri |
| */ |
| public abstract boolean engineCanResolveURI(ResourceResolverContext context); |
| |
| } |