org.eclipse.scada.protocol.iec60870.asdu.message.SetPointCommandScaledValue.java Source code

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Here is the source code for org.eclipse.scada.protocol.iec60870.asdu.message.SetPointCommandScaledValue.java

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/*******************************************************************************
 * Copyright (c) 2014 IBH SYSTEMS GmbH and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/
package org.eclipse.scada.protocol.iec60870.asdu.message;

import io.netty.buffer.ByteBuf;

import org.eclipse.scada.protocol.iec60870.ProtocolOptions;
import org.eclipse.scada.protocol.iec60870.asdu.ASDUHeader;
import org.eclipse.scada.protocol.iec60870.asdu.types.ASDU;
import org.eclipse.scada.protocol.iec60870.asdu.types.Cause;
import org.eclipse.scada.protocol.iec60870.asdu.types.InformationObjectAddress;
import org.eclipse.scada.protocol.iec60870.asdu.types.InformationStructure;

@ASDU(id = 49, name = "C_SE_NB_1", informationStructure = InformationStructure.SINGLE)
public class SetPointCommandScaledValue extends AbstractInformationObjectMessage
        implements MirrorableMessage<SetPointCommandScaledValue> {
    private final byte type;

    private final boolean execute;

    private final short value;

    public SetPointCommandScaledValue(final ASDUHeader header,
            final InformationObjectAddress informationObjectAddress, final short value, final byte type,
            final boolean execute) {
        super(header, informationObjectAddress);
        this.value = value;
        this.type = type;
        this.execute = execute;
    }

    public SetPointCommandScaledValue(final ASDUHeader header,
            final InformationObjectAddress informationObjectAddress, final short value) {
        this(header, informationObjectAddress, value, (byte) 0, true);
    }

    public byte getType() {
        return this.type;
    }

    public short getValue() {
        return this.value;
    }

    public boolean isExecute() {
        return this.execute;
    }

    @Override
    public SetPointCommandScaledValue mirror(final Cause cause, final boolean positive) {
        return new SetPointCommandScaledValue(this.header.clone(cause, positive), this.informationObjectAddress,
                this.value, this.type, this.execute);
    }

    @Override
    public void encode(final ProtocolOptions options, final ByteBuf out) {
        EncodeHelper.encodeHeader(this, options, null, this.header, out);

        this.informationObjectAddress.encode(options, out);

        out.writeShort(this.value);

        byte b = 0;

        b |= this.type & 0b011111111;
        b |= this.execute ? 0 : 0b100000000;

        out.writeByte(b);
    }

    public static SetPointCommandScaledValue parse(final ProtocolOptions options, final byte length,
            final ASDUHeader header, final ByteBuf data) {
        final InformationObjectAddress address = InformationObjectAddress.parse(options, data);

        final short value = data.readShort();

        final byte b = data.readByte();

        final byte type = (byte) (b & 0b011111111);
        final boolean execute = !((b & 0b100000000) > 0);

        return new SetPointCommandScaledValue(header, address, value, type, execute);
    }
}