Engine.java, [...]: New files from classpath.
2003-04-30 Michael Koch <konqueror@gmx.de> * gnu/java/security/Engine.java, gnu/java/security/OID.java, gnu/java/security/der/BitString.java, gnu/java/security/der/DER.java, gnu/java/security/der/DERReader.java, gnu/java/security/der/DERValue.java, gnu/java/security/der/DERWriter.java, gnu/java/security/provider/DSAKeyFactory.java, gnu/java/security/provider/X509CertificateFactory.java, gnu/java/security/x509/X500DistinguishedName.java, gnu/java/security/x509/X509CRL.java, gnu/java/security/x509/X509CRLEntry.java, gnu/java/security/x509/X509Certificate.java, java/security/cert/CRLSelector.java, java/security/cert/CertPathBuilder.java, java/security/cert/CertPathBuilderResult.java, java/security/cert/CertPathBuilderSpi.java, java/security/cert/CertPathParameters.java, java/security/cert/CertPathValidator.java, java/security/cert/CertPathValidatorResult.java, java/security/cert/CertPathValidatorSpi.java, java/security/cert/CertSelector.java, java/security/cert/CertStore.java, java/security/cert/CertStoreParameters.java, java/security/cert/CertStoreSpi.java, java/security/cert/CollectionCertStoreParameters.java, java/security/cert/LDAPCertStoreParameters.java, java/security/cert/PKIXBuilderParameters.java, java/security/cert/PKIXCertPathBuilderResult.java, java/security/cert/PKIXCertPathChecker.java, java/security/cert/PKIXCertPathValidatorResult.java, java/security/cert/PKIXParameters.java, java/security/cert/PolicyNode.java, java/security/cert/PolicyQualifierInfo.java, java/security/cert/TrustAnchor.java, javax/security/auth/x500/X500Principal.java: New files from classpath. * gnu/java/io/ASN1ParsingException.java, gnu/java/io/Base64InputStream.java, gnu/java/security/der/DEREncodingException.java, gnu/java/security/provider/DSAParameters.java, gnu/java/security/provider/DSASignature.java, gnu/java/security/provider/Gnu.java, gnu/java/security/provider/GnuDSAPrivateKey.java, gnu/java/security/provider/GnuDSAPublicKey.java, java/security/AlgorithmParameterGenerator.java, java/security/AlgorithmParameters.java, java/security/KeyFactory.java, java/security/KeyPairGenerator.java, java/security/KeyStore.java, java/security/MessageDigest.java, java/security/SecureClassLoader.java, java/security/SecureRandom.java, java/security/Security.java, java/security/Signature.java, java/security/cert/Certificate.java, java/security/cert/CertificateFactory.java, java/security/cert/CertificateFactorySpi.java, java/security/cert/X509CRL.java, java/security/cert/X509Certificate.java, java/security/spec/DSAPublicKeySpec.java: New versions from classpath. * gnu/java/security/provider/DERReader.java, gnu/java/security/provider/DERWriter.java, java/security/Engine.java: Removed. * Makefile.am (java_source_files, javax_source_files): Added new files. * Makefile.in: Regenerated. From-SVN: r66283
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65 changed files with 9043 additions and 642 deletions
317
libjava/gnu/java/security/der/BitString.java
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317
libjava/gnu/java/security/der/BitString.java
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@ -0,0 +1,317 @@
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/* BitString.java -- Java representation of the BIT STRING type.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.security.der;
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import java.math.BigInteger;
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import java.util.Arrays;
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/**
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* Immutable representation of a bit string, which is equivalent to a
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* byte array except some number of the rightmost bits are ignored. For
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* example, this could be the bit string:
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*
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* <pre> 00010101 11101101 11010xxx</pre>
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*
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* <p>Where the "xxx" represents three bits that should be ignored, and
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* can have any value.
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*
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* @author Casey Marshall (rsdio@metastatic.org)
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*/
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public class BitString implements Cloneable, Comparable, java.io.Serializable
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{
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// Fields.
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// ------------------------------------------------------------------------
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/** The bits themselves. */
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private final byte[] bytes;
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/**
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* The exportable byte array. This array has the ignored bits
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* removed.
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*/
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private transient byte[] externBytes;
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/** The number of bits ignored at the end of the byte array. */
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private final int ignoredBits;
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/** This bit string as a boolean array. */
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private transient boolean[] boolVal;
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// Constructors.
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// ------------------------------------------------------------------------
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/**
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* Create a new bit string, shifting the given byte array if needed.
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*
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* @param bytes The byte array holding the bit string.
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* @param ignoredBits The number of bits to ignore.
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* @param doShift Pass true in this parameter if the byte array has
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* not yet been shifted left by <i>ignoredBits</i>.
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* @throws IllegalArgumentException If <i>ignoredBits</i> is negative
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* or greater than 7.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes, int ignoredBits, boolean doShift)
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{
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this(bytes, 0, bytes.length, ignoredBits, doShift);
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}
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/**
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* Create a new bit string, shifting the given byte array if needed.
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*
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* @param bytes The byte array holding the bit string.
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* @param offset The offset where the meaningful bytes begin.
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* @param length The number of meaningful bytes.
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* @param ignoredBits The number of bits to ignore.
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* @param doShift Pass true in this parameter if the byte array has
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* not yet been shifted left by <i>ignoredBits</i>.
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* @throws IllegalArgumentException If <i>ignoredBits</i> is negative
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* or greater than 7.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes, int offset, int length,
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int ignoredBits, boolean doShift)
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{
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if (ignoredBits < 0 || ignoredBits > 7)
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throw new IllegalArgumentException();
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if (bytes == null)
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throw new NullPointerException();
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if (doShift && ignoredBits > 0)
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{
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this.externBytes = new byte[length];
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System.arraycopy(bytes, offset, externBytes, 0, length);
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this.bytes = new BigInteger(externBytes).shiftLeft(ignoredBits)
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.toByteArray();
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}
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else
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{
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this.bytes = new byte[length];
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System.arraycopy(bytes, offset, this.bytes, 0, length);
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}
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this.ignoredBits = ignoredBits;
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}
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/**
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* Create a new bit string.
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*
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* @param bytes The byte array holding the bit string.
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* @param offset The offset where the meaningful bytes begin.
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* @param length The number of meaningful bytes.
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* @param ignoredBits The number of bits to ignore.
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* @throws IllegalArgumentException If <i>ignoredBits</i> is negative
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* or greater than 7.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes, int offset, int length, int ignoredBits)
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{
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this(bytes, offset, length, ignoredBits, false);
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}
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/**
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* Create a new bit string.
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*
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* @param bytes The byte array holding the bit string.
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* @param ignoredBits The number of bits to ignore.
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* @throws IllegalArgumentException If <i>ignoredBits</i> is negative
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* or greater than 7.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes, int ignoredBits)
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{
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this(bytes, 0, bytes.length, ignoredBits, false);
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}
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/**
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* Create a new bit string.
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*
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* @param bytes The byte array holding the bit string.
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* @param offset The offset where the meaningful bytes begin.
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* @param length The number of meaningful bytes.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes, int offset, int length)
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{
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this(bytes, offset, length, 0, false);
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}
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/**
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* Create a new bit string.
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*
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* @param bytes The byte array holding the bit string.
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* @throws NullPointerException If <i>bytes</i> is null.
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*/
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public BitString(byte[] bytes)
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{
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this(bytes, 0, bytes.length, 0, false);
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}
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// Instance methods.
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// ------------------------------------------------------------------------
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/**
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* Return this bit string as a byte array, with the ignored bits
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* trimmed off. The byte array is cloned every time this method is
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* called to prevent modification.
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*
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* @return The trimmed byte array.
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*/
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public byte[] toByteArray()
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{
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if (ignoredBits == 0)
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return (byte[]) bytes.clone();
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if (externBytes == null)
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externBytes = new BigInteger(bytes).shiftRight(ignoredBits).toByteArray();
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return (byte[]) externBytes.clone();
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}
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/**
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* Returns this bit string as a byte array, with the ignored bits
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* present. The byte array is cloned every time this method is
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* called to prevent modification.
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*
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* @return The byte array.
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*/
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public byte[] getShiftedByteArray()
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{
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return (byte[]) bytes.clone();
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}
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/**
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* Returns the number of ignored bits.
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*
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* @return The number of ignored bits.
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*/
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public int getIgnoredBits()
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{
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return ignoredBits;
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}
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/**
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* Returns the size, in bits, of this bit string.
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*
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* @return The size of this bit string.
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*/
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public int size()
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{
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return (bytes.length << 3) - ignoredBits;
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}
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/**
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* Return this bit string as a boolean array. The value returned is of
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* size {@link #size()}, and each <code>true</code> value
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* corresponding to each "1" in this bit string. The boolean array is
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* cloned before it is returned.
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*
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* @return The boolean array.
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*/
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public boolean[] toBooleanArray()
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{
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if (boolVal == null)
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{
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boolVal = new boolean[size()];
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for (int i = 0, j = 7, k = 0; i < boolVal.length; i++)
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{
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boolVal[i] = (bytes[k] & 1 << j--) != 0;
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if (j < 0)
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{
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j = 7;
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k++;
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}
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}
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}
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return (boolean[]) boolVal.clone();
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}
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public Object clone()
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{
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try
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{
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return super.clone();
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}
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catch (CloneNotSupportedException cce)
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{
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throw new InternalError(cce.getMessage());
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}
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}
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public int compareTo(Object o)
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{
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BitString that = (BitString) o;
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if (this.equals(that))
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return 0;
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if (this.bytes.length != that.bytes.length)
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return (this.bytes.length < that.bytes.length) ? -1 : 1;
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if (this.ignoredBits != that.ignoredBits)
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return (this.ignoredBits < that.ignoredBits) ? -1 : 1;
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for (int i = 0; i < this.bytes.length; i++)
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if (this.bytes[i] != that.bytes[i])
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return (this.bytes[i] < that.bytes[i]) ? -1 : 1;
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return 0; // not reached.
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}
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public boolean equals(Object o)
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{
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if (this == o)
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return true;
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BitString that = (BitString) o;
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// True for cloned instances.
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if (this.bytes == that.bytes && this.ignoredBits == that.ignoredBits)
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return true;
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if (this.ignoredBits == that.ignoredBits)
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return Arrays.equals(this.bytes, that.bytes);
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return false;
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}
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public String toString()
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{
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StringBuffer sb = new StringBuffer();
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for (int i = 0, j = 7, k = 0; i < size(); i++)
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{
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sb.append((bytes[k] & 1 << j) != 0 ? "1" : "0");
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j--;
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if (j < 0)
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{
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j = 7;
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k++;
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}
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}
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return sb.toString();
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}
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}
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