package org.apache.commons.ssl.asn1;
import java.io.IOException;
public class DERBoolean
extends ASN1Object {
byte value;
public static final DERBoolean FALSE = new DERBoolean(false);
public static final DERBoolean TRUE = new DERBoolean(true);
/**
* return a boolean from the passed in object.
*
* @throws 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) {
return new DERBoolean(((ASN1OctetString) obj).getOctets());
}
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);
}
/**
* 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.
* @throws IllegalArgumentException if the tagged object cannot
* be converted.
*/
public static DERBoolean getInstance(
ASN1TaggedObject obj,
boolean explicit) {
return getInstance(obj.getObject());
}
public DERBoolean(
byte[] value) {
this.value = value[0];
}
public DERBoolean(
boolean value) {
this.value = (value) ? (byte) 0xff : (byte) 0;
}
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";
}
}