--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/provider/certpath/CollectionCertStore.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.security.provider.certpath;
+
+import java.security.InvalidAlgorithmParameterException;
+import java.security.cert.Certificate;
+import java.security.cert.CRL;
+import java.util.Collection;
+import java.util.ConcurrentModificationException;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.security.cert.CertSelector;
+import java.security.cert.CertStore;
+import java.security.cert.CertStoreException;
+import java.security.cert.CertStoreParameters;
+import java.security.cert.CollectionCertStoreParameters;
+import java.security.cert.CRLSelector;
+import java.security.cert.CertStoreSpi;
+
+/**
+ * A <code>CertStore</code> that retrieves <code>Certificates</code> and
+ * <code>CRL</code>s from a <code>Collection</code>.
+ * <p>
+ * Before calling the {@link #engineGetCertificates engineGetCertificates} or
+ * {@link #engineGetCRLs engineGetCRLs} methods, the
+ * {@link #CollectionCertStore(CertStoreParameters)
+ * CollectionCertStore(CertStoreParameters)} constructor is called to
+ * create the <code>CertStore</code> and establish the
+ * <code>Collection</code> from which <code>Certificate</code>s and
+ * <code>CRL</code>s will be retrieved. If the specified
+ * <code>Collection</code> contains an object that is not a
+ * <code>Certificate</code> or <code>CRL</code>, that object will be
+ * ignored.
+ * <p>
+ * <b>Concurrent Access</b>
+ * <p>
+ * As described in the javadoc for <code>CertStoreSpi</code>, the
+ * <code>engineGetCertificates</code> and <code>engineGetCRLs</code> methods
+ * must be thread-safe. That is, multiple threads may concurrently
+ * invoke these methods on a single <code>CollectionCertStore</code>
+ * object (or more than one) with no ill effects.
+ * <p>
+ * This is achieved by requiring that the <code>Collection</code> passed to
+ * the {@link #CollectionCertStore(CertStoreParameters)
+ * CollectionCertStore(CertStoreParameters)} constructor (via the
+ * <code>CollectionCertStoreParameters</code> object) must have fail-fast
+ * iterators. Simultaneous modifications to the <code>Collection</code> can thus be
+ * detected and certificate or CRL retrieval can be retried. The fact that
+ * <code>Certificate</code>s and <code>CRL</code>s must be thread-safe is also
+ * essential.
+ *
+ * @see java.security.cert.CertStore
+ *
+ * @since 1.4
+ * @author Steve Hanna
+ */
+public class CollectionCertStore extends CertStoreSpi {
+
+ private Collection<?> coll;
+
+ /**
+ * Creates a <code>CertStore</code> with the specified parameters.
+ * For this class, the parameters object must be an instance of
+ * <code>CollectionCertStoreParameters</code>. The <code>Collection</code>
+ * included in the <code>CollectionCertStoreParameters</code> object
+ * must be thread-safe.
+ *
+ * @param params the algorithm parameters
+ * @exception InvalidAlgorithmParameterException if params is not an
+ * instance of <code>CollectionCertStoreParameters</code>
+ */
+ public CollectionCertStore(CertStoreParameters params)
+ throws InvalidAlgorithmParameterException
+ {
+ super(params);
+ if (!(params instanceof CollectionCertStoreParameters))
+ throw new InvalidAlgorithmParameterException(
+ "parameters must be CollectionCertStoreParameters");
+ coll = ((CollectionCertStoreParameters) params).getCollection();
+ }
+
+ /**
+ * Returns a <code>Collection</code> of <code>Certificate</code>s that
+ * match the specified selector. If no <code>Certificate</code>s
+ * match the selector, an empty <code>Collection</code> will be returned.
+ *
+ * @param selector a <code>CertSelector</code> used to select which
+ * <code>Certificate</code>s should be returned. Specify <code>null</code>
+ * to return all <code>Certificate</code>s.
+ * @return a <code>Collection</code> of <code>Certificate</code>s that
+ * match the specified selector
+ * @throws CertStoreException if an exception occurs
+ */
+ public Collection<Certificate> engineGetCertificates
+ (CertSelector selector) throws CertStoreException {
+ if (coll == null) {
+ throw new CertStoreException("Collection is null");
+ }
+ // Tolerate a few ConcurrentModificationExceptions
+ for (int c = 0; c < 10; c++) {
+ try {
+ HashSet<Certificate> result = new HashSet<Certificate>();
+ Iterator<?> i = coll.iterator();
+ if (selector != null) {
+ while (i.hasNext()) {
+ Object o = i.next();
+ if ((o instanceof Certificate) &&
+ selector.match((Certificate) o))
+ result.add((Certificate)o);
+ }
+ } else {
+ while (i.hasNext()) {
+ Object o = i.next();
+ if (o instanceof Certificate)
+ result.add((Certificate)o);
+ }
+ }
+ return(result);
+ } catch (ConcurrentModificationException e) { }
+ }
+ throw new ConcurrentModificationException("Too many "
+ + "ConcurrentModificationExceptions");
+ }
+
+ /**
+ * Returns a <code>Collection</code> of <code>CRL</code>s that
+ * match the specified selector. If no <code>CRL</code>s
+ * match the selector, an empty <code>Collection</code> will be returned.
+ *
+ * @param selector a <code>CRLSelector</code> used to select which
+ * <code>CRL</code>s should be returned. Specify <code>null</code>
+ * to return all <code>CRL</code>s.
+ * @return a <code>Collection</code> of <code>CRL</code>s that
+ * match the specified selector
+ * @throws CertStoreException if an exception occurs
+ */
+ public Collection<CRL> engineGetCRLs(CRLSelector selector)
+ throws CertStoreException
+ {
+ if (coll == null)
+ throw new CertStoreException("Collection is null");
+
+ // Tolerate a few ConcurrentModificationExceptions
+ for (int c = 0; c < 10; c++) {
+ try {
+ HashSet<CRL> result = new HashSet<CRL>();
+ Iterator<?> i = coll.iterator();
+ if (selector != null) {
+ while (i.hasNext()) {
+ Object o = i.next();
+ if ((o instanceof CRL) && selector.match((CRL) o))
+ result.add((CRL)o);
+ }
+ } else {
+ while (i.hasNext()) {
+ Object o = i.next();
+ if (o instanceof CRL)
+ result.add((CRL)o);
+ }
+ }
+ return(result);
+ } catch (ConcurrentModificationException e) { }
+ }
+ throw new ConcurrentModificationException("Too many "
+ + "ConcurrentModificationExceptions");
+ }
+}