org.snmp4j.agent.mo.snmp.EnumeratedScalar Maven / Gradle / Ivy
/*_############################################################################
_##
_## SNMP4J-Agent 2 - EnumeratedScalar.java
_##
_## Copyright (C) 2005-2014 Frank Fock (SNMP4J.org)
_##
_## Licensed under the Apache License, Version 2.0 (the "License");
_## you may not use this file except in compliance with the License.
_## You may obtain a copy of the License at
_##
_## http://www.apache.org/licenses/LICENSE-2.0
_##
_## Unless required by applicable law or agreed to in writing, software
_## distributed under the License is distributed on an "AS IS" BASIS,
_## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
_## See the License for the specific language governing permissions and
_## limitations under the License.
_##
_##########################################################################*/
package org.snmp4j.agent.mo.snmp;
import org.snmp4j.agent.mo.MOScalar;
import org.snmp4j.smi.Integer32;
import org.snmp4j.agent.MOAccess;
import org.snmp4j.smi.OID;
import org.snmp4j.agent.request.SubRequest;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.agent.mo.snmp.smi.EnumerationConstraint;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.Variable;
/**
* The EnumeratedScalar class represents enumerated SMI INTEGER
* (={@link Integer32}) or an OCTET STRING with enumerated named bits for
* scalar objects. The latter represents the SMI construct BITS.
*
* @author Frank Fock
* @version 2.0.5
*/
public class EnumeratedScalar extends MOScalar {
private EnumerationConstraint constraint;
/**
* Creates an enumerated Integer32 or BITS (OctetString) scalar with
* specifying a set of possible values. To constraint the possible values
* assignable to this object, you will have to set the corresponding
* {@link EnumerationConstraint} with {@link #setConstraint} or use an
* appropriate value validation listener.
* @param oid
* the instance oid (with ".0" suffix) of the scalar.
* @param access
* the maximum access for this column.
* @param value
* the initial value.
*/
public EnumeratedScalar(OID oid,
MOAccess access,
V value) {
super(oid, access, value);
}
/**
* Creates an enumerated scalar with specifying a set of possible
* values.
* @param oid
* the instance oid (with ".0" suffix) of the scalar.
* @param access
* the maximum access for this column.
* @param value
* the initial value.
* @param allowedValues
* an array of possible values for this object.
*/
public EnumeratedScalar(OID oid,
MOAccess access,
V value,
int[] allowedValues) {
super(oid, access, value);
this.constraint = new EnumerationConstraint(allowedValues);
}
public int isValueOK(SubRequest request) {
int result = super.isValueOK(request);
if ((constraint != null) && (result == SnmpConstants.SNMP_ERROR_SUCCESS)) {
return constraint.validate(request.getVariableBinding().getVariable());
}
return result;
}
protected void setConstraint(EnumerationConstraint constraint) {
this.constraint = constraint;
}
}