| package org.bouncycastle.asn1; |
| |
| import java.io.IOException; |
| import java.math.BigInteger; |
| |
| import org.bouncycastle.util.Arrays; |
| |
| public class DEREnumerated |
| extends ASN1Object |
| { |
| byte[] bytes; |
| |
| /** |
| * return an integer from the passed in object |
| * |
| * @exception IllegalArgumentException if the object cannot be converted. |
| */ |
| public static DEREnumerated getInstance( |
| Object obj) |
| { |
| if (obj == null || obj instanceof DEREnumerated) |
| { |
| return (DEREnumerated)obj; |
| } |
| |
| throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName()); |
| } |
| |
| /** |
| * return an Enumerated from a tagged object. |
| * |
| * @param obj the tagged object holding the object we want |
| * @param explicit true if the object is meant to be explicitly |
| * tagged false otherwise. |
| * @exception IllegalArgumentException if the tagged object cannot |
| * be converted. |
| */ |
| public static DEREnumerated getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| DERObject o = obj.getObject(); |
| |
| if (explicit || o instanceof DEREnumerated) |
| { |
| return getInstance(o); |
| } |
| else |
| { |
| return new DEREnumerated(((ASN1OctetString)o).getOctets()); |
| } |
| } |
| |
| public DEREnumerated( |
| int value) |
| { |
| bytes = BigInteger.valueOf(value).toByteArray(); |
| } |
| |
| public DEREnumerated( |
| BigInteger value) |
| { |
| bytes = value.toByteArray(); |
| } |
| |
| public DEREnumerated( |
| byte[] bytes) |
| { |
| this.bytes = bytes; |
| } |
| |
| public BigInteger getValue() |
| { |
| return new BigInteger(bytes); |
| } |
| |
| void encode( |
| DEROutputStream out) |
| throws IOException |
| { |
| out.writeEncoded(ENUMERATED, bytes); |
| } |
| |
| boolean asn1Equals( |
| DERObject o) |
| { |
| if (!(o instanceof DEREnumerated)) |
| { |
| return false; |
| } |
| |
| DEREnumerated other = (DEREnumerated)o; |
| |
| return Arrays.areEqual(this.bytes, other.bytes); |
| } |
| |
| public int hashCode() |
| { |
| return Arrays.hashCode(bytes); |
| } |
| } |