diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java deleted file mode 100644 index 2a050c44..00000000 --- a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AsPath.java +++ /dev/null @@ -1,214 +0,0 @@ -/* - * 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.bgpio.types; - -import java.util.ArrayList; -import java.util.List; -import java.util.Objects; - -import org.jboss.netty.buffer.ChannelBuffer; -import org.onosproject.bgpio.exceptions.BgpParseException; -import org.onosproject.bgpio.util.Constants; -import org.onosproject.bgpio.util.Validation; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; - -/** - * Provides Implementation of AsPath mandatory BGP Path Attribute. - */ -public class AsPath implements BgpValueType { - /** - * Enum to provide AS types. - */ - public enum ASTYPE { - AS_SET(1), AS_SEQUENCE(2), AS_CONFED_SEQUENCE(3), AS_CONFED_SET(4); - int value; - - /** - * Assign val with the value as the AS type. - * - * @param val AS type - */ - ASTYPE(int val) { - value = val; - } - - /** - * Returns value of AS type. - * - * @return AS type - */ - public byte type() { - return (byte) value; - } - } - - private static final Logger log = LoggerFactory.getLogger(AsPath.class); - public static final byte ASPATH_TYPE = 2; - public static final byte ASPATH_SET_TYPE = 1; - public static final byte ASPATH_SEQ_TYPE = 2; - public static final byte ASNUM_SIZE = 2; - - private boolean isAsPath = false; - private List<Short> aspathSet; - private List<Short> aspathSeq; - - /** - * Initialize Fields. - */ - public AsPath() { - this.aspathSeq = null; - this.aspathSet = null; - } - - /** - * Constructor to initialize parameters. - * - * @param aspathSet ASpath Set type - * @param aspathSeq ASpath Sequence type - */ - public AsPath(List<Short> aspathSet, List<Short> aspathSeq) { - this.aspathSeq = aspathSeq; - this.aspathSet = aspathSet; - this.isAsPath = true; - } - - /** - * Reads from the channel buffer and parses AsPath. - * - * @param cb ChannelBuffer - * @return object of AsPath - * @throws BgpParseException while parsing AsPath - */ - public static AsPath read(ChannelBuffer cb) throws BgpParseException { - List<Short> aspathSet = new ArrayList<>(); - List<Short> aspathSeq = new ArrayList<>(); - ChannelBuffer tempCb = cb.copy(); - Validation validation = Validation.parseAttributeHeader(cb); - - if (cb.readableBytes() < validation.getLength()) { - Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, - validation.getLength()); - } - //if fourth bit is set, length is read as short otherwise as byte , len includes type, length and value - int len = validation.isShort() ? validation.getLength() + Constants.TYPE_AND_LEN_AS_SHORT : validation - .getLength() + Constants.TYPE_AND_LEN_AS_BYTE; - ChannelBuffer data = tempCb.readBytes(len); - if (validation.getFirstBit() && !validation.getSecondBit() && validation.getThirdBit()) { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_FLAGS_ERROR, data); - } - - ChannelBuffer tempBuf = cb.readBytes(validation.getLength()); - while (tempBuf.readableBytes() > 0) { - byte pathSegType = tempBuf.readByte(); - //no of ASes - byte pathSegLen = tempBuf.readByte(); - int length = pathSegLen * ASNUM_SIZE; - if (tempBuf.readableBytes() < length) { - Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, - BgpErrorType.ATTRIBUTE_LENGTH_ERROR, length); - } - ChannelBuffer aspathBuf = tempBuf.readBytes(length); - while (aspathBuf.readableBytes() > 0) { - short asNum; - asNum = aspathBuf.readShort(); - switch (pathSegType) { - case ASPATH_SET_TYPE: - aspathSet.add(asNum); - break; - case ASPATH_SEQ_TYPE: - aspathSeq.add(asNum); - break; - default: log.debug("Other type Not Supported:" + pathSegType); - } - } - } - return new AsPath(aspathSet, aspathSeq); - } - - @Override - public short getType() { - return ASPATH_TYPE; - } - - /** - * Returns whether ASpath path attribute is present. - * - * @return whether ASpath path attribute is present - */ - public boolean isaspathSet() { - return this.isAsPath; - } - - /** - * Returns list of ASNum in ASpath Sequence. - * - * @return list of ASNum in ASpath Sequence - */ - public List<Short> asPathSeq() { - return this.aspathSeq; - } - - /** - * Returns list of ASNum in ASpath SET. - * - * @return list of ASNum in ASpath SET - */ - public List<Short> asPathSet() { - return this.aspathSet; - } - - @Override - public int hashCode() { - return Objects.hash(aspathSet, aspathSeq); - } - - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } - if (obj instanceof AsPath) { - AsPath other = (AsPath) obj; - return Objects.equals(aspathSet, other.aspathSet) && Objects.equals(aspathSeq, other.aspathSeq); - } - return false; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .omitNullValues() - .add("aspathSet", aspathSet) - .add("aspathSeq", aspathSeq) - .toString(); - } - - @Override - public int write(ChannelBuffer cb) { - //Not required to Implement as of now - return 0; - } - - @Override - public int compareTo(Object o) { - // TODO Auto-generated method stub - return 0; - } -}
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