Java tutorial
/* * Copyright 2015 Open Networking Laboratory * * 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.onosproject.ipfix; import java.util.List; import org.onlab.packet.Ip6Address; import org.onlab.packet.IpAddress; import org.onosproject.ipfix.packet.DataRecord; import org.onosproject.ipfix.packet.HeaderException; import org.onosproject.ipfix.packet.Ie; import org.onosproject.ipfix.packet.InformationElement; import org.onosproject.ipfix.packet.TemplateRecord; import com.google.common.primitives.Ints; import com.google.common.primitives.Longs; /** * IPFIX Data record for switch port transmit statistics. */ public class DataRecordPortStatsOut extends DataRecord { public static final int TEMPLATE_ID = 342; public static final int FIELD_COUNT = 7; public static final int LENGTH = 56; private IpAddress exporterIPv4Address; private Ip6Address exporterIPv6Address; private int egressInterface; private long octetDeltaCount; private long packetDeltaCount; private long flowStartMilliseconds; private long flowEndMilliseconds; /** * IPFIX Data record for switch port transmit statistics. * * @param exporterIpv4 IPv4 address of the IPFIX exporter * @param exporterIpv6 IPv6 address of the IPFIX exporter, used for DPID * @param intf Egress/trasmiting interface number * @param octets number of bytes trasmitted * @param packets number of packets trasmitted * @param start start timestamp of the flow * @param end end timestamp of the flow */ public DataRecordPortStatsOut(IpAddress exporterIpv4, Ip6Address exporterIpv6, int intf, long octets, long packets, long start, long end) { exporterIPv4Address = exporterIpv4; exporterIPv6Address = exporterIpv6; egressInterface = intf; octetDeltaCount = octets; packetDeltaCount = packets; flowStartMilliseconds = start; flowEndMilliseconds = end; } @Override public int getLength() { return LENGTH; } @Override public byte[] getBytes() throws HeaderException { try { byte[] data = new byte[LENGTH]; System.arraycopy(exporterIPv4Address.toOctets(), 0, data, 0, 4); System.arraycopy(exporterIPv6Address.toOctets(), 0, data, 4, 16); System.arraycopy(Ints.toByteArray(egressInterface), 0, data, 20, 4); System.arraycopy(Longs.toByteArray(octetDeltaCount), 0, data, 24, 8); System.arraycopy(Longs.toByteArray(packetDeltaCount), 0, data, 32, 8); System.arraycopy(Longs.toByteArray(flowStartMilliseconds), 0, data, 40, 8); System.arraycopy(Longs.toByteArray(flowEndMilliseconds), 0, data, 48, 8); return data; } catch (Exception e) { throw new HeaderException("Error while generating the bytes: " + e.getMessage()); } } /** * IPFIX template record for switch port transmit statistics. * * @return TemplateRecord IPFIX Template Record */ public static TemplateRecord portStatsOutTemplateRecord() { TemplateRecord tr = new TemplateRecord(); tr.setTemplateID(TEMPLATE_ID); tr.setFieldCount(FIELD_COUNT); List<InformationElement> ieTemp = tr.getInformationElements(); ieTemp.add(new InformationElement(Ie.exporterIPv4Address)); ieTemp.add(new InformationElement(Ie.exporterIPv6Address)); ieTemp.add(new InformationElement(Ie.egressInterface)); ieTemp.add(new InformationElement(Ie.octetDeltaCount)); ieTemp.add(new InformationElement(Ie.packetDeltaCount)); ieTemp.add(new InformationElement(Ie.flowStartMilliseconds)); ieTemp.add(new InformationElement(Ie.flowEndMilliseconds)); return tr; } }