org.openmuc.josistack.internal.presentation.asn1.DefaultContextName Maven / Gradle / Ivy

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OpenIEC61850 is a library implementing the IEC 61850 MMS communication standard (client and server).
There is a newer version: 1.7.0
/**
 * This class file was automatically generated by jASN1 v1.7.2-SNAPSHOT (http://www.openmuc.org)
 */

package org.openmuc.josistack.internal.presentation.asn1;

import java.io.IOException;
import java.io.InputStream;

import org.openmuc.jasn1.ber.BerByteArrayOutputStream;
import org.openmuc.jasn1.ber.BerLength;
import org.openmuc.jasn1.ber.BerTag;

public class DefaultContextName {

    public static final BerTag tag = new BerTag(BerTag.UNIVERSAL_CLASS, BerTag.CONSTRUCTED, 16);

    public byte[] code = null;
    private AbstractSyntaxName abstractSyntaxName = null;
    private TransferSyntaxName transferSyntaxName = null;

    public DefaultContextName() {
    }

    public DefaultContextName(byte[] code) {
        this.code = code;
    }

    public void setAbstractSyntaxName(AbstractSyntaxName abstractSyntaxName) {
        this.abstractSyntaxName = abstractSyntaxName;
    }

    public AbstractSyntaxName getAbstractSyntaxName() {
        return abstractSyntaxName;
    }

    public void setTransferSyntaxName(TransferSyntaxName transferSyntaxName) {
        this.transferSyntaxName = transferSyntaxName;
    }

    public TransferSyntaxName getTransferSyntaxName() {
        return transferSyntaxName;
    }

    public int encode(BerByteArrayOutputStream os) throws IOException {
        return encode(os, true);
    }

    public int encode(BerByteArrayOutputStream os, boolean withTag) throws IOException {

        if (code != null) {
            for (int i = code.length - 1; i >= 0; i--) {
                os.write(code[i]);
            }
            if (withTag) {
                return tag.encode(os) + code.length;
            }
            return code.length;
        }

        int codeLength = 0;
        codeLength += transferSyntaxName.encode(os, false);
        // write tag: CONTEXT_CLASS, PRIMITIVE, 1
        os.write(0x81);
        codeLength += 1;

        codeLength += abstractSyntaxName.encode(os, false);
        // write tag: CONTEXT_CLASS, PRIMITIVE, 0
        os.write(0x80);
        codeLength += 1;

        codeLength += BerLength.encodeLength(os, codeLength);

        if (withTag) {
            codeLength += tag.encode(os);
        }

        return codeLength;

    }

    public int decode(InputStream is) throws IOException {
        return decode(is, true);
    }

    public int decode(InputStream is, boolean withTag) throws IOException {
        int codeLength = 0;
        int subCodeLength = 0;
        BerTag berTag = new BerTag();

        if (withTag) {
            codeLength += tag.decodeAndCheck(is);
        }

        BerLength length = new BerLength();
        codeLength += length.decode(is);

        int totalLength = length.val;
        codeLength += totalLength;

        subCodeLength += berTag.decode(is);
        if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0)) {
            abstractSyntaxName = new AbstractSyntaxName();
            subCodeLength += abstractSyntaxName.decode(is, false);
            subCodeLength += berTag.decode(is);
        }
        else {
            throw new IOException("Tag does not match the mandatory sequence element tag.");
        }

        if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 1)) {
            transferSyntaxName = new TransferSyntaxName();
            subCodeLength += transferSyntaxName.decode(is, false);
            if (subCodeLength == totalLength) {
                return codeLength;
            }
        }
        throw new IOException("Unexpected end of sequence, length tag: " + totalLength + ", actual sequence length: "
                + subCodeLength);

    }

    public void encodeAndSave(int encodingSizeGuess) throws IOException {
        BerByteArrayOutputStream os = new BerByteArrayOutputStream(encodingSizeGuess);
        encode(os, false);
        code = os.getArray();
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder("SEQUENCE{");
        sb.append("abstractSyntaxName: ").append(abstractSyntaxName);

        sb.append(", ");
        sb.append("transferSyntaxName: ").append(transferSyntaxName);

        sb.append("}");
        return sb.toString();
    }

}