/*_############################################################################
_##
_## SNMP4J-Agent - TestAndIncr.java
_##
_## Copyright (C) 2005-2009 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.agent.mo.MOAccessImpl;
import org.snmp4j.smi.Integer32;
import org.snmp4j.smi.OID;
import org.snmp4j.agent.request.SubRequest;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.agent.request.RequestStatus;
public class TestAndIncr extends MOScalar {
public TestAndIncr(OID oid) {
super(oid, MOAccessImpl.ACCESS_READ_WRITE, new Integer32(0));
}
public void commit(SubRequest request) {
Integer32 requestValue =
(Integer32)request.getVariableBinding().getVariable();
int v = requestValue.getValue();
if (v == Integer.MAX_VALUE) {
v = 0;
}
else {
v++;
}
request.getVariableBinding().setVariable(new Integer32(v));
super.commit(request);
request.getVariableBinding().setVariable(requestValue);
}
public void prepare(SubRequest request) {
super.prepare(request);
if (!request.hasError()) {
Integer32 value = (Integer32) request.getVariableBinding().getVariable();
if (!getValue().equals(value)) {
request.getStatus().
setErrorStatus(SnmpConstants.SNMP_ERROR_INCONSISTENT_VALUE);
}
}
}
public int isValueOK(SubRequest request) {
Integer32 value = (Integer32) request.getVariableBinding().getVariable();
if (value.getValue() < 0) {
return SnmpConstants.SNMP_ERROR_WRONG_VALUE;
}
return SnmpConstants.SNMP_ERROR_SUCCESS;
}
}