| package org.bouncycastle.asn1; |
| |
| import org.bouncycastle.util.Strings; |
| |
| import java.io.IOException; |
| |
| /** |
| * DER UTF8String object. |
| */ |
| public class DERUTF8String |
| extends ASN1Object |
| implements DERString |
| { |
| String string; |
| |
| /** |
| * return an UTF8 string from the passed in object. |
| * |
| * @exception IllegalArgumentException |
| * if the object cannot be converted. |
| */ |
| public static DERUTF8String getInstance(Object obj) |
| { |
| if (obj == null || obj instanceof DERUTF8String) |
| { |
| return (DERUTF8String)obj; |
| } |
| |
| if (obj instanceof ASN1OctetString) |
| { |
| return new DERUTF8String(((ASN1OctetString)obj).getOctets()); |
| } |
| |
| if (obj instanceof ASN1TaggedObject) |
| { |
| return getInstance(((ASN1TaggedObject)obj).getObject()); |
| } |
| |
| throw new IllegalArgumentException("illegal object in getInstance: " |
| + obj.getClass().getName()); |
| } |
| |
| /** |
| * return an UTF8 String 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 DERUTF8String getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| return getInstance(obj.getObject()); |
| } |
| |
| /** |
| * basic constructor - byte encoded string. |
| */ |
| DERUTF8String(byte[] string) |
| { |
| this.string = Strings.fromUTF8ByteArray(string); |
| } |
| |
| /** |
| * basic constructor |
| */ |
| public DERUTF8String(String string) |
| { |
| this.string = string; |
| } |
| |
| public String getString() |
| { |
| return string; |
| } |
| |
| public String toString() |
| { |
| return string; |
| } |
| |
| public int hashCode() |
| { |
| return this.getString().hashCode(); |
| } |
| |
| boolean asn1Equals(DERObject o) |
| { |
| if (!(o instanceof DERUTF8String)) |
| { |
| return false; |
| } |
| |
| DERUTF8String s = (DERUTF8String)o; |
| |
| return this.getString().equals(s.getString()); |
| } |
| |
| void encode(DEROutputStream out) |
| throws IOException |
| { |
| out.writeEncoded(UTF8_STRING, Strings.toUTF8ByteArray(string)); |
| } |
| } |