Java SMIConstants.SYNTAX_NULL属性代码示例

/**
 * TODO: Merge this logic with {@link Snmp4JWalker.Snmp4JResponseListener#processResponse(PDU response)}
 */
private static SnmpValue[] processResponse(Snmp4JAgentConfig agentConfig, ResponseEvent responseEvent) throws IOException {
    SnmpValue[] retvalues = { null };

    if (responseEvent.getResponse() == null) {
        log().warn("processResponse: Timeout.  Agent: "+agentConfig);
    } else if (responseEvent.getError() != null) {
        log().warn("processResponse: Error during get operation.  Error: "+responseEvent.getError().getLocalizedMessage(), responseEvent.getError());
    } else if (responseEvent.getResponse().getType() == PDU.REPORT) {
        log().warn("processResponse: Error during get operation.  Report returned with varbinds: "+responseEvent.getResponse().getVariableBindings());
    } else if (responseEvent.getResponse().getVariableBindings().size() < 1) {
        log().warn("processResponse: Received PDU with 0 varbinds.");
    } else if (responseEvent.getResponse().get(0).getSyntax() == SMIConstants.SYNTAX_NULL) {
        log().info("processResponse: Null value returned in varbind: " + responseEvent.getResponse().get(0));
    } else {
        retvalues = convertResponseToValues(responseEvent);

        if (log().isDebugEnabled()) {
            log().debug("processResponse: SNMP operation successful, value: "+Arrays.toString(retvalues));
        }
    }

    return retvalues;
}
 

public byte[] getBytes() {
    switch (m_value.getSyntax()) {
    case SMIConstants.SYNTAX_INTEGER:
    case SMIConstants.SYNTAX_COUNTER32:
    case SMIConstants.SYNTAX_COUNTER64:
    case SMIConstants.SYNTAX_TIMETICKS:
    case SMIConstants.SYNTAX_UNSIGNED_INTEGER32:
        return toBigInteger().toByteArray();
    case SMIConstants.SYNTAX_IPADDRESS:
        return toInetAddress().getAddress();
    case SMIConstants.SYNTAX_OBJECT_IDENTIFIER:
        return toSnmpObjId().toString().getBytes();
    case SMIConstants.SYNTAX_OCTET_STRING:
        return ((OctetString)m_value).getValue();
    case SMIConstants.SYNTAX_OPAQUE:
        return((Opaque)m_value).getValue();
    case SMIConstants.EXCEPTION_END_OF_MIB_VIEW:
    case SMIConstants.EXCEPTION_NO_SUCH_INSTANCE:
    case SMIConstants.EXCEPTION_NO_SUCH_OBJECT:
    case SMIConstants.SYNTAX_NULL:
        return new byte[0];
    default:
        throw new IllegalArgumentException("cannot convert "+m_value+" to a byte array");
    }
}
 

public byte[] getBytes() {
    switch (m_value.getSyntax()) {
    case SMIConstants.SYNTAX_INTEGER:
    case SMIConstants.SYNTAX_COUNTER32:
    case SMIConstants.SYNTAX_COUNTER64:
    case SMIConstants.SYNTAX_TIMETICKS:
    case SMIConstants.SYNTAX_UNSIGNED_INTEGER32:
        return toBigInteger().toByteArray();
    case SMIConstants.SYNTAX_IPADDRESS:
        return toInetAddress().getAddress();
    case SMIConstants.SYNTAX_OBJECT_IDENTIFIER:
        return toSnmpObjId().toString().getBytes();
    case SMIConstants.SYNTAX_OCTET_STRING:
        return ((OctetString)m_value).getValue();
    case SMIConstants.SYNTAX_OPAQUE:
        return((Opaque)m_value).getValue();
    case SMIConstants.SYNTAX_NULL:
        return new byte[0];
    default:
        throw new IllegalArgumentException("cannot convert "+m_value+" to a byte array");
    }
}
 

public String toDisplayString() {
    switch (m_value.getSyntax()) {
    case SMIConstants.SYNTAX_OBJECT_IDENTIFIER :
        return SnmpObjId.get(((OID)m_value).getValue()).toString();
    case SMIConstants.SYNTAX_TIMETICKS :
        return Long.toString(toLong());
    case SMIConstants.SYNTAX_OCTET_STRING :
        return toStringDottingCntrlChars(((OctetString)m_value).getValue());
    case SMIConstants.SYNTAX_NULL:
    	return "";
    default :
        return m_value.toString();
    }
}
 

/**
 * This operation is not supported by {@link NetSnmpVariableTextFormat}.
 *
 * @param smiSyntax the SMI syntax identifier identifying the target
 *   <code>Variable</code>.
 * @param text a textual representation of the variable.
 * @return the new <code>Variable</code> instance.
 * @throws ParseException if the variable cannot be parsed successfully.
 */
public Variable parse(int syntax, String value) {
  Variable v = AbstractVariable.createFromSyntax(syntax);
  if (v instanceof AssignableFromString) {
    ((AssignableFromString)v).setValue(value);
  }
  else if (syntax == SMIConstants.SYNTAX_NULL) {
    // Do nothing
  }
  else {
    throw new AssertionError("Never get here.");
  }
  return v;
}
 

protected String getSmiSyntax(int syntax) {
		String s = null;
		
		switch(syntax) {
		case SMIConstants.EXCEPTION_NO_SUCH_INSTANCE:
			s = "EXCEPTION_NO_SUCH_INSTANCE";
			break;
		case SMIConstants.EXCEPTION_END_OF_MIB_VIEW:
			s = "EXCEPTION_END_OF_MIB_VIEW";
			break;
			
		case SMIConstants.EXCEPTION_NO_SUCH_OBJECT:
			s = "EXCEPTION_NO_SUCH_OBJECT";
			break;
//		case SMIConstants.SYNTAX_BITS:
//			s = "SYNTAX_BITS";
//			break;
		case SMIConstants.SYNTAX_COUNTER32:
			s = "SYNTAX_COUNTER32";
			break;
		case SMIConstants.SYNTAX_COUNTER64:
			s = "SYNTAX_COUNTER64";
			break;
		case SMIConstants.SYNTAX_GAUGE32:
			s = "SYNTAX_GAUGE32";
			break;
		case SMIConstants.SYNTAX_INTEGER32:
			s = "SYNTAX_INTEGER32";
			break;
		case SMIConstants.SYNTAX_IPADDRESS:
			s = "SYNTAX_IPADDRESS";
			break;
		case SMIConstants.SYNTAX_NULL:
			s = "SYNTAX_NULL";
			break;
		case SMIConstants.SYNTAX_OBJECT_IDENTIFIER:
			s = "SYNTAX_OBJECT_IDENTIFIER";
			break;
		case SMIConstants.SYNTAX_OCTET_STRING:
			s = "SYNTAX_OCTET_STRING";
			break;
		case SMIConstants.SYNTAX_OPAQUE:
			s = "SYNTAX_OPAQUE";
			break;
		case SMIConstants.SYNTAX_TIMETICKS:
			s = "";
			break;
//		case SMIConstants.SYNTAX_UNSIGNED_INTEGER32:
//			s = "";
//			break;
		}
		
		return s;
	}