RoutingLabel.java

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package org.mobicents.media.server.impl.resource.ss7;

/**
 *
 * @author kulikov
 */
public class RoutingLabel {
    private int opc;
    private int dpc;
    private int sls;
    
    private byte[] bin =new byte[4];
    
    public RoutingLabel(int opc, int dpc, int sls) {
        this.opc = opc;
        this.dpc = dpc;
        this.sls = sls;
        
        bin[0] = (byte) dpc;        
        bin[1] = (byte)(((dpc >> 8) & 0x3f) |((opc & 0x03) << 6));
        bin[2] = (byte)(opc >> 2);
        bin[3] = (byte)(((opc >> 10) & 0x0f)| (sls << 4));
    }
    
    public RoutingLabel(byte[] sif) {
        dpc = (sif[0] & 0xff | ((sif[1] & 0x3f) << 8));    
        opc = ((sif[1] & 0x03) >> 6) | ((sif[2] & 0xff) << 2) | ((sif[3] & 0x0f) << 10);
        sls = (sif[3] & 0xf0) >>> 4;
    }
    
    public int getOPC() {
        return opc;
    }
    
    public int getDPC() {
        return dpc;
    }
    
    public int getSLS() {
        return sls;
    }
    
    public byte[] toByteArray() {
        return bin;
    }
}