diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepUpdateMsgVer1.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepUpdateMsgVer1.java | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepUpdateMsgVer1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepUpdateMsgVer1.java deleted file mode 100644 index 53c66872..00000000 --- a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepUpdateMsgVer1.java +++ /dev/null @@ -1,300 +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.pcepio.protocol.ver1; - -import java.util.LinkedList; -import java.util.ListIterator; - -import org.jboss.netty.buffer.ChannelBuffer; -import org.onosproject.pcepio.exceptions.PcepParseException; -import org.onosproject.pcepio.protocol.PcepLspObject; -import org.onosproject.pcepio.protocol.PcepMessageReader; -import org.onosproject.pcepio.protocol.PcepMessageWriter; -import org.onosproject.pcepio.protocol.PcepMsgPath; -import org.onosproject.pcepio.protocol.PcepSrpObject; -import org.onosproject.pcepio.protocol.PcepType; -import org.onosproject.pcepio.protocol.PcepUpdateMsg; -import org.onosproject.pcepio.protocol.PcepUpdateRequest; -import org.onosproject.pcepio.protocol.PcepVersion; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; - -/** - * Provides PCEP update message. - */ - -class PcepUpdateMsgVer1 implements PcepUpdateMsg { - - // Pcep version: 1 - - /* The format of the PCUpd message is as follows: - * <PCUpd Message> ::= <Common Header> - * <update-request-list> - * Where: - * <update-request-list> ::= <update-request>[<update-request-list>] - * <update-request> ::= <SRP> - * <LSP> - * <path> - * Where: - * <path> ::= <ERO><attribute-list> - * Where: - * <attribute-list> is defined in [RFC5440] and extended by PCEP extensions. - * where: - * <attribute-list> ::=[<LSPA>] - * [<BANDWIDTH>] - * [<metric-list>] - * [<IRO>] - * <metric-list> ::=<METRIC>[<metric-list>] - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Ver | Flags | Message-Type | Message-Length | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | | - * // UPDATE REQUEST LIST // - * | | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * Reference:Internet-Draft-PCEP Extensions-for-Stateful-PCE-10 - */ - - protected static final Logger log = LoggerFactory.getLogger(PcepUpdateMsgVer1.class); - - public static final byte PACKET_VERSION = 1; - // UpdateMsgMinLength = SrpObjMinLentgh(12)+LspObjMinLength(8)+EroObjMinLength(12)+ CommonHeaderLength(4) - public static final short PACKET_MINIMUM_LENGTH = 36; - public static final PcepType MSG_TYPE = PcepType.UPDATE; - //Update Request List - private LinkedList<PcepUpdateRequest> llUpdateRequestList; - - public static final PcepUpdateMsgVer1.Reader READER = new Reader(); - - /** - * Reader reads UpdateMessage from the channel. - */ - static class Reader implements PcepMessageReader<PcepUpdateMsg> { - - LinkedList<PcepUpdateRequest> llUpdateRequestList; - - @Override - public PcepUpdateMsg readFrom(ChannelBuffer cb) throws PcepParseException { - - if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) { - throw new PcepParseException("Readable bytes is less than update message minimum length"); - } - - llUpdateRequestList = new LinkedList<>(); - - // fixed value property version == 1 - byte version = cb.readByte(); - version = (byte) (version >> PcepMessageVer1.SHIFT_FLAG); - if (version != PACKET_VERSION) { - throw new PcepParseException("Wrong version. Expected=PcepVersion.PCEP_1(1), got=" + version); - } - // fixed value property type == 11 - byte type = cb.readByte(); - if (type != MSG_TYPE.getType()) { - throw new PcepParseException("Wrong type. Expected=PcepType.UPDATE(11), got=" + type); - } - short length = cb.readShort(); - if (length < PACKET_MINIMUM_LENGTH) { - throw new PcepParseException("Wrong length. Expected to be >= " + PACKET_MINIMUM_LENGTH + ", was: " - + length); - } - - log.debug("reading update message of length " + length); - - // parse Update Request list - if (!parseUpdateRequestList(cb)) { - throw new PcepParseException("parsing Update Request List Failed."); - } - - return new PcepUpdateMsgVer1(llUpdateRequestList); - } - - /** - * Parse update request list. - * - * @param cb of type channel buffer - * @return true after parsing Update Request List - * @throws PcepParseException while parsing update request list from channel buffer - */ - public boolean parseUpdateRequestList(ChannelBuffer cb) throws PcepParseException { - - /* <update-request-list> - * Where: - * <update-request-list> ::= <update-request>[<update-request-list>] - * <update-request> ::= <SRP> - * <LSP> - * <path> - * Where: - * <path> ::= <ERO><attribute-list> - * Where: - * <attribute-list> is defined in [RFC5440] and extended by PCEP extensions. - */ - - while (0 < cb.readableBytes()) { - - PcepUpdateRequest pceUpdateReq = new PcepUpdateRequestVer1(); - - //Read SRP Object and Store it. - PcepSrpObject srpObj; - srpObj = PcepSrpObjectVer1.read(cb); - pceUpdateReq.setSrpObject(srpObj); - - //Read LSP object and Store it. - PcepLspObject lspObj; - lspObj = PcepLspObjectVer1.read(cb); - pceUpdateReq.setLspObject(lspObj); - - // Read Msg Path and store it. - PcepMsgPath msgPath = new PcepMsgPathVer1().read(cb); - pceUpdateReq.setMsgPath(msgPath); - - llUpdateRequestList.add(pceUpdateReq); - } - return true; - } - } - - /** - * Constructor to initialize llUpdateRequestList. - * - * @param llUpdateRequestList list of PcepUpdateRequest. - */ - PcepUpdateMsgVer1(LinkedList<PcepUpdateRequest> llUpdateRequestList) { - this.llUpdateRequestList = llUpdateRequestList; - } - - /** - * Builder class for PCPE update message. - */ - static class Builder implements PcepUpdateMsg.Builder { - - // PCEP report message fields - LinkedList<PcepUpdateRequest> llUpdateRequestList; - - @Override - public PcepVersion getVersion() { - return PcepVersion.PCEP_1; - } - - @Override - public PcepType getType() { - return PcepType.UPDATE; - } - - @Override - public PcepUpdateMsg build() { - return new PcepUpdateMsgVer1(this.llUpdateRequestList); - } - - @Override - public LinkedList<PcepUpdateRequest> getUpdateRequestList() { - return this.llUpdateRequestList; - } - - @Override - public Builder setUpdateRequestList(LinkedList<PcepUpdateRequest> llUpdateRequestList) { - this.llUpdateRequestList = llUpdateRequestList; - return this; - } - - } - - @Override - public void writeTo(ChannelBuffer cb) throws PcepParseException { - WRITER.write(cb, this); - } - - static final Writer WRITER = new Writer(); - - /** - * Writer writes UpdateMessage to the channel buffer. - */ - static class Writer implements PcepMessageWriter<PcepUpdateMsgVer1> { - - @Override - public void write(ChannelBuffer cb, PcepUpdateMsgVer1 message) throws PcepParseException { - - int startIndex = cb.writerIndex(); - // first 3 bits set to version - cb.writeByte((byte) (PACKET_VERSION << PcepMessageVer1.SHIFT_FLAG)); - // message type - cb.writeByte(MSG_TYPE.getType()); - /* length is length of variable message, will be updated at the end - * Store the position of message - * length in buffer - */ - int msgLenIndex = cb.writerIndex(); - - cb.writeShort((short) 0); - ListIterator<PcepUpdateRequest> listIterator = message.llUpdateRequestList.listIterator(); - - while (listIterator.hasNext()) { - - PcepUpdateRequest updateReq = listIterator.next(); - - //SRP object is mandatory - PcepSrpObject srpObj = updateReq.getSrpObject(); - srpObj.write(cb); - - //LSP object is mandatory - PcepLspObject lspObj = updateReq.getLspObject(); - lspObj.write(cb); - - //PATH object is mandatory - PcepMsgPath msgPath = updateReq.getMsgPath(); - msgPath.write(cb); - } - - // update message length field - int length = cb.writerIndex() - startIndex; - cb.setShort(msgLenIndex, (short) length); - } - } - - @Override - public PcepVersion getVersion() { - return PcepVersion.PCEP_1; - } - - @Override - public PcepType getType() { - return MSG_TYPE; - } - - @Override - public LinkedList<PcepUpdateRequest> getUpdateRequestList() { - return this.llUpdateRequestList; - } - - @Override - public void setUpdateRequestList(LinkedList<PcepUpdateRequest> llUpdateRequestList) { - this.llUpdateRequestList = llUpdateRequestList; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .add("UpdateRequestList", llUpdateRequestList) - .toString(); - } -} |