ScfIDImpl.java example

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jss7-master
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 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
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 *
 * This software is distributed in the hope that it will be useful,
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.cap.primitives;

import java.io.IOException;

import javolution.xml.XMLFormat;
import javolution.xml.stream.XMLStreamException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.cap.api.CAPException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.cap.api.primitives.ScfID;

/**
 *
 * @author sergey vetyutnev
 *
 */
public class ScfIDImpl implements ScfID, CAPAsnPrimitive {

    public static final String _DATA = "data";

    public static final String _PrimitiveName = "ScfID";

    private byte[] data;

    public ScfIDImpl() {
    }

    public ScfIDImpl(byte[] data) {
        this.data = data;
    }

    @Override
    public byte[] getData() {
        return this.data;
    }

    @Override
    public int getTag() throws CAPException {
        return Tag.STRING_OCTET;
    }

    @Override
    public int getTagClass() {
        return Tag.CLASS_UNIVERSAL;
    }

    @Override
    public boolean getIsPrimitive() {
        return true;
    }

    @Override
    public void decodeAll(AsnInputStream ansIS) throws CAPParsingComponentException {

        try {
            int length = ansIS.readLength();
            this._decode(ansIS, length);
        } catch (IOException e) {
            throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
                    CAPParsingComponentExceptionReason.MistypedParameter);
        } catch (AsnException e) {
            throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
                    CAPParsingComponentExceptionReason.MistypedParameter);
        }
    }

    @Override
    public void decodeData(AsnInputStream ansIS, int length) throws CAPParsingComponentException {

        try {
            this._decode(ansIS, length);
        } catch (IOException e) {
            throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
                    CAPParsingComponentExceptionReason.MistypedParameter);
        } catch (AsnException e) {
            throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
                    CAPParsingComponentExceptionReason.MistypedParameter);
        }
    }

    private void _decode(AsnInputStream ansIS, int length) throws CAPParsingComponentException, IOException, AsnException {

        this.data = ansIS.readOctetStringData(length);
        if (this.data.length < 2 || this.data.length > 10)
            throw new CAPParsingComponentException("Error decoding " + _PrimitiveName
                    + ": length must be from 2 to 10, real length = " + length,
                    CAPParsingComponentExceptionReason.MistypedParameter);
    }

    @Override
    public void encodeAll(AsnOutputStream asnOs) throws CAPException {
        this.encodeAll(asnOs, this.getTagClass(), this.getTag());
    }

    @Override
    public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws CAPException {

        try {
            asnOs.writeTag(tagClass, this.getIsPrimitive(), tag);
            int pos = asnOs.StartContentDefiniteLength();
            this.encodeData(asnOs);
            asnOs.FinalizeContent(pos);
        } catch (AsnException e) {
            throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
        }
    }

    @Override
    public void encodeData(AsnOutputStream asnOs) throws CAPException {

        if (this.data == null)
            throw new CAPException("Error while encoding " + _PrimitiveName + ": data field must not be null");
        if (this.data.length < 2 || this.data.length > 10)
            throw new CAPException("Error while encoding " + _PrimitiveName + ": data field length must be from 2 to 10");

        asnOs.writeOctetStringData(data);
    }

    protected static final XMLFormat<ScfIDImpl> SCF_ID_XML = new XMLFormat<ScfIDImpl>(ScfIDImpl.class) {

        @Override
        public void read(javolution.xml.XMLFormat.InputElement xml, ScfIDImpl scfID) throws XMLStreamException {
            scfID.data = OctetStringBase.hexToBytes(xml.get(_DATA, String.class));
        }

        @Override
        public void write(ScfIDImpl scfID, javolution.xml.XMLFormat.OutputElement xml) throws XMLStreamException {
            xml.add(OctetStringBase.bytesToHex(scfID.data), _DATA, String.class);
        }
    };

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append(_PrimitiveName);
        sb.append(" [");

        if (this.data != null) {
            sb.append("data=[");
            sb.append(printDataArr(this.data));
            sb.append("]");
        }

        sb.append("]");

        return sb.toString();
    }

    private String printDataArr(byte[] arr) {
        StringBuilder sb = new StringBuilder();
        for (int b : arr) {
            sb.append(b);
            sb.append(", ");
        }

        return sb.toString();
    }
}