| /** |
| * 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.keys.storage; |
| |
| import java.security.KeyStore; |
| import java.security.cert.Certificate; |
| import java.security.cert.X509Certificate; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| |
| import org.apache.xml.security.keys.storage.implementations.KeyStoreResolver; |
| import org.apache.xml.security.keys.storage.implementations.SingleCertificateResolver; |
| |
| /** |
| * This class collects customized resolvers for Certificates. |
| */ |
| public class StorageResolver { |
| |
| private static final org.slf4j.Logger LOG = |
| org.slf4j.LoggerFactory.getLogger(StorageResolver.class); |
| |
| /** Field storageResolvers */ |
| private final List<StorageResolverSpi> storageResolvers = new ArrayList<>(); |
| |
| /** |
| * Constructor StorageResolver |
| * |
| */ |
| public StorageResolver() {} |
| |
| /** |
| * Constructor StorageResolver |
| * |
| * @param resolver |
| */ |
| public StorageResolver(StorageResolverSpi resolver) { |
| this.add(resolver); |
| } |
| |
| /** |
| * Method addResolver |
| * |
| * @param resolver |
| */ |
| public void add(StorageResolverSpi resolver) { |
| this.storageResolvers.add(resolver); |
| } |
| |
| /** |
| * Constructor StorageResolver |
| * |
| * @param keyStore |
| */ |
| public StorageResolver(KeyStore keyStore) { |
| this.add(keyStore); |
| } |
| |
| /** |
| * Method addKeyStore |
| * |
| * @param keyStore |
| */ |
| public void add(KeyStore keyStore) { |
| try { |
| this.add(new KeyStoreResolver(keyStore)); |
| } catch (StorageResolverException ex) { |
| LOG.error("Could not add KeyStore because of: ", ex); |
| } |
| } |
| |
| /** |
| * Constructor StorageResolver |
| * |
| * @param x509certificate |
| */ |
| public StorageResolver(X509Certificate x509certificate) { |
| this.add(x509certificate); |
| } |
| |
| /** |
| * Method addCertificate |
| * |
| * @param x509certificate |
| */ |
| public void add(X509Certificate x509certificate) { |
| this.add(new SingleCertificateResolver(x509certificate)); |
| } |
| |
| /** |
| * Method getIterator |
| * @return the iterator for the resolvers. |
| */ |
| public Iterator<Certificate> getIterator() { |
| return new StorageResolverIterator(this.storageResolvers.iterator()); |
| } |
| |
| /** |
| * Class StorageResolverIterator |
| * This iterates over all the Certificates found in all the resolvers. |
| */ |
| static class StorageResolverIterator implements Iterator<Certificate> { |
| |
| /** Field resolvers */ |
| private final Iterator<StorageResolverSpi> resolvers; |
| |
| /** Field currentResolver */ |
| private Iterator<Certificate> currentResolver; |
| |
| /** |
| * Constructor StorageResolverIterator |
| * |
| * @param resolvers |
| */ |
| public StorageResolverIterator(Iterator<StorageResolverSpi> resolvers) { |
| this.resolvers = resolvers; |
| currentResolver = findNextResolver(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean hasNext() { |
| if (currentResolver == null) { |
| return false; |
| } |
| |
| if (currentResolver.hasNext()) { |
| return true; |
| } |
| |
| currentResolver = findNextResolver(); |
| return currentResolver != null; |
| } |
| |
| /** {@inheritDoc} */ |
| public Certificate next() { |
| if (hasNext()) { |
| return currentResolver.next(); |
| } |
| |
| throw new NoSuchElementException(); |
| } |
| |
| /** |
| * Method remove |
| */ |
| public void remove() { |
| throw new UnsupportedOperationException("Can't remove keys from KeyStore"); |
| } |
| |
| // Find the next storage with at least one element and return its Iterator |
| private Iterator<Certificate> findNextResolver() { |
| while (resolvers.hasNext()) { |
| StorageResolverSpi resolverSpi = resolvers.next(); |
| Iterator<Certificate> iter = resolverSpi.getIterator(); |
| if (iter.hasNext()) { |
| return iter; |
| } |
| } |
| |
| return null; |
| } |
| } |
| } |