Examples with BerEncoder com.sun.jmx.snmp.BerEncoder used on opensource projects

Example 1 with BerEncoder

use of com.sun.jmx.snmp.BerEncoder in project jdk8u_jdk by JetBrains.

the class SnmpV3Message method encodeSnmpPdu.

/**
     * Initializes this message with the specified <CODE>pdu</CODE>.
     * <P>
     * This method initializes the data field with an array of
     * <CODE>maxDataLength</CODE> bytes. It encodes the <CODE>pdu</CODE>.
     * The resulting encoding is stored in the data field
     * and the length of the encoding is stored in <CODE>dataLength</CODE>.
     * <p>
     * If the encoding length exceeds <CODE>maxDataLength</CODE>,
     * the method throws an exception.
     *
     * @param p The PDU to be encoded.
     * @param maxDataLength The maximum length permitted for the data field.
     *
     * @exception SnmpStatusException If the specified <CODE>pdu</CODE>
     *   is not valid.
     * @exception SnmpTooBigException If the resulting encoding does not fit
     * into <CODE>maxDataLength</CODE> bytes.
     * @exception ArrayIndexOutOfBoundsException If the encoding exceeds
     *    <CODE>maxDataLength</CODE>.
     */
public void encodeSnmpPdu(SnmpPdu p, int maxDataLength) throws SnmpStatusException, SnmpTooBigException {
    SnmpScopedPduPacket pdu = (SnmpScopedPduPacket) p;
    if (SNMP_LOGGER.isLoggable(Level.FINER)) {
        final StringBuilder strb = new StringBuilder().append("PDU to marshall: \n").append("security parameters : ").append(pdu.securityParameters).append("\n").append("type : ").append(pdu.type).append("\n").append("version : ").append(pdu.version).append("\n").append("requestId : ").append(pdu.requestId).append("\n").append("msgId : ").append(pdu.msgId).append("\n").append("msgMaxSize : ").append(pdu.msgMaxSize).append("\n").append("msgFlags : ").append(pdu.msgFlags).append("\n").append("msgSecurityModel : ").append(pdu.msgSecurityModel).append("\n").append("contextEngineId : ").append(pdu.contextEngineId).append("\n").append("contextName : ").append(pdu.contextName).append("\n");
        SNMP_LOGGER.logp(Level.FINER, SnmpV3Message.class.getName(), "encodeSnmpPdu", strb.toString());
    }
    version = pdu.version;
    address = pdu.address;
    port = pdu.port;
    msgId = pdu.msgId;
    msgMaxSize = pdu.msgMaxSize;
    msgFlags = pdu.msgFlags;
    msgSecurityModel = pdu.msgSecurityModel;
    contextEngineId = pdu.contextEngineId;
    contextName = pdu.contextName;
    securityParameters = pdu.securityParameters;
    //
    // Allocate the array to receive the encoding.
    //
    data = new byte[maxDataLength];
    try {
        BerEncoder benc = new BerEncoder(data);
        benc.openSequence();
        encodeVarBindList(benc, pdu.varBindList);
        switch(pdu.type) {
            case pduGetRequestPdu:
            case pduGetNextRequestPdu:
            case pduInformRequestPdu:
            case pduGetResponsePdu:
            case pduSetRequestPdu:
            case pduV2TrapPdu:
            case pduReportPdu:
                SnmpPduRequestType reqPdu = (SnmpPduRequestType) pdu;
                benc.putInteger(reqPdu.getErrorIndex());
                benc.putInteger(reqPdu.getErrorStatus());
                benc.putInteger(pdu.requestId);
                break;
            case pduGetBulkRequestPdu:
                SnmpPduBulkType bulkPdu = (SnmpPduBulkType) pdu;
                benc.putInteger(bulkPdu.getMaxRepetitions());
                benc.putInteger(bulkPdu.getNonRepeaters());
                benc.putInteger(pdu.requestId);
                break;
            default:
                throw new SnmpStatusException("Invalid pdu type " + String.valueOf(pdu.type));
        }
        benc.closeSequence(pdu.type);
        dataLength = benc.trim();
    } catch (ArrayIndexOutOfBoundsException x) {
        throw new SnmpTooBigException();
    }
}