| package org.bouncycastle.asn1; |
| |
| import java.io.IOException; |
| |
| public class DERBoolean |
| extends ASN1Object |
| { |
| // BEGIN android-changed |
| private final byte value; |
| // END android-changed |
| |
| public static final DERBoolean FALSE = new DERBoolean(false); |
| public static final DERBoolean TRUE = new DERBoolean(true); |
| |
| /** |
| * return a boolean from the passed in object. |
| * |
| * @exception IllegalArgumentException if the object cannot be converted. |
| */ |
| public static DERBoolean getInstance( |
| Object obj) |
| { |
| if (obj == null || obj instanceof DERBoolean) |
| { |
| return (DERBoolean)obj; |
| } |
| |
| if (obj instanceof ASN1OctetString) |
| { |
| // BEGIN android-changed |
| return getInstance(((ASN1OctetString)obj).getOctets()); |
| // END android-changed |
| } |
| |
| if (obj instanceof ASN1TaggedObject) |
| { |
| return getInstance(((ASN1TaggedObject)obj).getObject()); |
| } |
| |
| throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName()); |
| } |
| |
| /** |
| * return a DERBoolean from the passed in boolean. |
| */ |
| public static DERBoolean getInstance( |
| boolean value) |
| { |
| return (value ? TRUE : FALSE); |
| } |
| |
| // BEGIN android-added |
| /** |
| * return a DERBoolean from the passed in array. |
| */ |
| public static DERBoolean getInstance( |
| byte[] octets) |
| { |
| return (octets[0] != 0) ? TRUE : FALSE; |
| } |
| // END android-added |
| |
| /** |
| * return a Boolean 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 DERBoolean getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| return getInstance(obj.getObject()); |
| } |
| |
| // BEGIN android-removed |
| //private DERBoolean( |
| // byte[] value) |
| //{ |
| // this.value = value[0]; |
| //} |
| // END android-removed |
| |
| // BEGIN android-changed |
| private DERBoolean( |
| boolean value) |
| { |
| this.value = (value) ? (byte)0xff : (byte)0; |
| } |
| // END android-changed |
| |
| public boolean isTrue() |
| { |
| return (value != 0); |
| } |
| |
| void encode( |
| DEROutputStream out) |
| throws IOException |
| { |
| byte[] bytes = new byte[1]; |
| |
| bytes[0] = value; |
| |
| out.writeEncoded(BOOLEAN, bytes); |
| } |
| |
| protected boolean asn1Equals( |
| DERObject o) |
| { |
| if ((o == null) || !(o instanceof DERBoolean)) |
| { |
| return false; |
| } |
| |
| return (value == ((DERBoolean)o).value); |
| } |
| |
| public int hashCode() |
| { |
| return value; |
| } |
| |
| |
| public String toString() |
| { |
| return (value != 0) ? "TRUE" : "FALSE"; |
| } |
| } |