001package org.apache.commons.ssl.asn1;
002
003import java.io.IOException;
004
005public class DERGeneralString
006    extends ASN1Object implements DERString {
007    private String string;
008
009    public static DERGeneralString getInstance(
010        Object obj) {
011        if (obj == null || obj instanceof DERGeneralString) {
012            return (DERGeneralString) obj;
013        }
014        if (obj instanceof ASN1OctetString) {
015            return new DERGeneralString(((ASN1OctetString) obj).getOctets());
016        }
017        if (obj instanceof ASN1TaggedObject) {
018            return getInstance(((ASN1TaggedObject) obj).getObject());
019        }
020        throw new IllegalArgumentException("illegal object in getInstance: "
021                                           + obj.getClass().getName());
022    }
023
024    public static DERGeneralString getInstance(
025        ASN1TaggedObject obj,
026        boolean explicit) {
027        return getInstance(obj.getObject());
028    }
029
030    public DERGeneralString(byte[] string) {
031        char[] cs = new char[string.length];
032        for (int i = 0; i != cs.length; i++) {
033            cs[i] = (char) (string[i] & 0xff);
034        }
035        this.string = new String(cs);
036    }
037
038    public DERGeneralString(String string) {
039        this.string = string;
040    }
041
042    public String getString() {
043        return string;
044    }
045
046    public String toString() {
047        return string;
048    }
049
050    public byte[] getOctets() {
051        char[] cs = string.toCharArray();
052        byte[] bs = new byte[cs.length];
053        for (int i = 0; i != cs.length; i++) {
054            bs[i] = (byte) cs[i];
055        }
056        return bs;
057    }
058
059    void encode(DEROutputStream out)
060        throws IOException {
061        out.writeEncoded(GENERAL_STRING, this.getOctets());
062    }
063
064    public int hashCode() {
065        return this.getString().hashCode();
066    }
067
068    boolean asn1Equals(DERObject o) {
069        if (!(o instanceof DERGeneralString)) {
070            return false;
071        }
072        DERGeneralString s = (DERGeneralString) o;
073        return this.getString().equals(s.getString());
074    }
075}