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-/* PolicyQualifierInfo.java -- policy qualifier info object.
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.security.cert;
-
-import gnu.java.io.ASN1ParsingException;
-import gnu.java.security.OID;
-import gnu.java.security.der.DERReader;
-import gnu.java.security.der.DERValue;
-
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-
-/**
- * The PolicyQualifierInfo X.509 certificate extension.
- * PolicyQualifierInfo objects are represented by the ASN.1 structure:
- *
- * <pre>
- * PolicyQualifierInfo ::= SEQUENCE {
- * policyQualifierId PolicyQualifierId,
- * qualifier ANY DEFINED BY policyQualifierId
- * }
- *
- * PolicyQualifierId ::= OBJECT IDENTIFIER
- * </pre>
- *
- * @since JDK 1.4
- */
-public final class PolicyQualifierInfo
-{
-
- // Fields.
- // ------------------------------------------------------------------------
-
- /** The <code>policyQualifierId</code> field. */
- private OID oid;
-
- /** The DER encoded form of this object. */
- private byte[] encoded;
-
- /** The DER encoded form of the <code>qualifier</code> field. */
- private DERValue qualifier;
-
- // Constructor.
- // ------------------------------------------------------------------------
-
- /**
- * Create a new PolicyQualifierInfo object from the DER encoded form
- * passed in the byte array. The argument is copied.
- *
- * <p>The ASN.1 form of PolicyQualifierInfo is:
-<pre>
-PolicyQualifierInfo ::= SEQUENCE {
- policyQualifierId PolicyQualifierId,
- qualifier ANY DEFINED BY policyQualifierId
-}
-
-PolicyQualifierId ::= OBJECT IDENTIFIER
-</pre>
- *
- * @param encoded The DER encoded form.
- * @throws IOException If the structure cannot be parsed from the
- * encoded bytes.
- */
- public PolicyQualifierInfo(byte[] encoded) throws IOException
- {
- if (encoded == null)
- throw new IOException("null bytes");
- this.encoded = (byte[]) encoded.clone();
- DERReader in = new DERReader(new ByteArrayInputStream(this.encoded));
- DERValue qualInfo = in.read();
- if (!qualInfo.isConstructed())
- throw new ASN1ParsingException("malformed PolicyQualifierInfo");
- DERValue val = in.read();
- if (!(val.getValue() instanceof OID))
- throw new ASN1ParsingException("value read not an OBJECT IDENTIFIER");
- oid = (OID) val.getValue();
- if (val.getEncodedLength() < val.getLength())
- qualifier = in.read();
- }
-
- // Instance methods.
- // ------------------------------------------------------------------------
-
- /**
- * Returns the <code>policyQualifierId</code> field of this structure,
- * as a dotted-decimal representation of the object identifier.
- *
- * @return This structure's OID field.
- */
- public String getPolicyQualifierId()
- {
- return oid.toString();
- }
-
- /**
- * Returns the DER encoded form of this object; the contents of the
- * returned byte array are equivalent to those that were passed to the
- * constructor. The byte array is cloned every time this method is
- * called.
- *
- * @return The encoded form.
- */
- public byte[] getEncoded()
- {
- return (byte[]) encoded.clone();
- }
-
- /**
- * Get the <code>qualifier</code> field of this object, as a DER
- * encoded byte array. The byte array returned is cloned every time
- * this method is called.
- *
- * @return The encoded qualifier.
- */
- public byte[] getPolicyQualifier()
- {
- if (qualifier == null)
- return new byte[0];
- return qualifier.getEncoded();
- }
-
- /**
- * Returns a printable string representation of this object.
- *
- * @return The string representation.
- */
- public String toString()
- {
- return "PolicyQualifierInfo { policyQualifierId ::= " + oid
- + ", qualifier ::= " + qualifier + " }";
- }
-}
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