| /* |
| * Copyright 2016-present 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.bgpio.types; |
| |
| import java.util.LinkedList; |
| import java.util.Objects; |
| import java.util.List; |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.bgpio.exceptions.BgpParseException; |
| import org.onosproject.bgpio.util.Constants; |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Provides implementation of BGP flow specification component. |
| */ |
| public class BgpFsSourcePortNum implements BgpValueType { |
| |
| public static final byte FLOW_SPEC_TYPE = Constants.BGP_FLOWSPEC_SRC_PORT; |
| private List<BgpFsOperatorValue> operatorValue; |
| |
| /** |
| * Constructor to initialize the value. |
| * |
| * @param operatorValue list of operator and value |
| */ |
| public BgpFsSourcePortNum(List<BgpFsOperatorValue> operatorValue) { |
| this.operatorValue = operatorValue; |
| } |
| |
| @Override |
| public short getType() { |
| return this.FLOW_SPEC_TYPE; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(operatorValue); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof BgpFsSourcePortNum) { |
| BgpFsSourcePortNum other = (BgpFsSourcePortNum) obj; |
| return this.operatorValue.equals(other.operatorValue); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer cb) { |
| int iLenStartIndex = cb.writerIndex(); |
| |
| cb.writeByte(FLOW_SPEC_TYPE); |
| |
| for (BgpFsOperatorValue fsOperVal : operatorValue) { |
| cb.writeByte(fsOperVal.option()); |
| cb.writeBytes(fsOperVal.value()); |
| } |
| |
| return cb.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object. |
| * |
| * @param cb channelBuffer |
| * @return object of flow spec source port number |
| * @throws BgpParseException while parsing BgpFsSourcePortNum |
| */ |
| public static BgpFsSourcePortNum read(ChannelBuffer cb) throws BgpParseException { |
| List<BgpFsOperatorValue> operatorValue = new LinkedList<>(); |
| byte option; |
| short port; |
| |
| do { |
| option = (byte) cb.readByte(); |
| int len = (option & Constants.BGP_FLOW_SPEC_LEN_MASK) >> 4; |
| if ((1 << len) == 1) { |
| port = cb.readByte(); |
| operatorValue.add(new BgpFsOperatorValue(option, new byte[] {(byte) port})); |
| } else { |
| port = cb.readShort(); |
| operatorValue.add(new BgpFsOperatorValue(option, new byte[] {(byte) (port >> 8), (byte) port})); |
| } |
| } while ((option & Constants.BGP_FLOW_SPEC_END_OF_LIST_MASK) == 0); |
| |
| return new BgpFsSourcePortNum(operatorValue); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("FLOW_SPEC_TYPE", FLOW_SPEC_TYPE) |
| .add("operatorValue", operatorValue).toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |