org.restcomm.protocols.ss7.commonapp.circuitSwitchedCall.VariablePartTimeImpl Maven / Gradle / Ivy

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/*
 * Mobius Software LTD
 * Copyright 2019, Mobius Software LTD and individual contributors
 * by the @authors tag.
 *
 * This program is free software: you can redistribute it and/or modify
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see 
 */

package org.restcomm.protocols.ss7.commonapp.circuitSwitchedCall;

import org.restcomm.protocols.ss7.commonapp.api.circuitSwitchedCall.VariablePartTime;

import com.mobius.software.telco.protocols.ss7.asn.primitives.ASNOctetString;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

/**
 *
 * @author sergey vetyutnev
 * @author yulianoifa
 *
 */
public class VariablePartTimeImpl extends ASNOctetString implements VariablePartTime {
	public VariablePartTimeImpl() {
		super("VariablePartTime",2,2,false);
    }

    public VariablePartTimeImpl(int hour, int minute) {
        super(translate(hour, minute),"VariablePartTime",2,2,false);
    }

    protected static ByteBuf translate(int hour, int minute) {
    	ByteBuf buffer=Unpooled.buffer(2);
        
        buffer.writeByte((byte) encodeByte(hour));
        buffer.writeByte((byte) encodeByte(minute));
        
        return buffer;
    }

    public int getHour() {
    	ByteBuf value=getValue();
        if (value == null || value.readableBytes() != 2)
            return 0;

        return decodeByte(value.readByte());
    }

    public int getMinute() {
    	ByteBuf value=getValue();
        if (value == null || value.readableBytes() != 2)
            return 0;

        value.skipBytes(1);
        return decodeByte(value.readByte());
    }

    private static int decodeByte(int bt) {
        return (bt & 0x0F) * 10 + ((bt & 0xF0) >> 4);
    }

    private static int encodeByte(int val) {
        return (val / 10) | (val % 10) << 4;
    }

    @Override
    public String toString() {

        StringBuilder sb = new StringBuilder();
        sb.append("VariablePartDate [");

        ByteBuf value=getValue();
        if (value != null && value.readableBytes() == 2) {
            sb.append("hour=");
            sb.append(this.getHour());
            sb.append(", minute=");
            sb.append(this.getMinute());
        }

        sb.append("]");

        return sb.toString();
    }
}