diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepInitiateMsgVer1.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepInitiateMsgVer1.java | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepInitiateMsgVer1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepInitiateMsgVer1.java deleted file mode 100644 index 60d14b07..00000000 --- a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepInitiateMsgVer1.java +++ /dev/null @@ -1,332 +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.PcInitiatedLspRequest; -import org.onosproject.pcepio.protocol.PcepAttribute; -import org.onosproject.pcepio.protocol.PcepEndPointsObject; -import org.onosproject.pcepio.protocol.PcepEroObject; -import org.onosproject.pcepio.protocol.PcepInitiateMsg; -import org.onosproject.pcepio.protocol.PcepLspObject; -import org.onosproject.pcepio.protocol.PcepMessageReader; -import org.onosproject.pcepio.protocol.PcepMessageWriter; -import org.onosproject.pcepio.protocol.PcepSrpObject; -import org.onosproject.pcepio.protocol.PcepType; -import org.onosproject.pcepio.protocol.PcepVersion; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; - -/** - * Provides PCEP initiate message. - */ -class PcepInitiateMsgVer1 implements PcepInitiateMsg { - - protected static final Logger log = LoggerFactory.getLogger(PcepInitiateMsgVer1.class); - - // Ref : PCE initiated tunnel setup draft-ietf-pce-pce-initiated-lsp-03, section 5.1 - /* <PCInitiate Message> ::= <Common Header> - * <PCE-initiated-lsp-list> - * Where: - * <PCE-initiated-lsp-list> ::= <PCE-initiated-lsp-request>[<PCE-initiated-lsp-list>] - * <PCE-initiated-lsp-request> ::= (<PCE-initiated-lsp-instantiation>|<PCE-initiated-lsp-deletion>) - * <PCE-initiated-lsp-instantiation> ::= <SRP> - * <LSP> - * <END-POINTS> - * <ERO> - * [<attribute-list>] - * <PCE-initiated-lsp-deletion> ::= <SRP> - * <LSP> - */ - - static final byte PACKET_VERSION = 1; - /* considering LspDelete Request PcInitiate msg will contain - * common header - * srp object - * lsp object - * so min length for this can be - * PACKET_MINIMUM_LENGTH = CommonHeaderLen(4)+SrpObjectMinLen(12)+LspObjectMinLen(8) - */ - public static final short PACKET_MINIMUM_LENGTH = 24; - public static final short MINIMUM_COMMON_HEADER_LENGTH = 4; - public static final PcepType MSG_TYPE = PcepType.INITIATE; - private LinkedList<PcInitiatedLspRequest> llPcInitiatedLspRequestList; - public static final PcepInitiateMsgVer1.Reader READER = new Reader(); - - /** - * Reader class for reading of Pcep initiate message from channel buffer. - */ - static class Reader implements PcepMessageReader<PcepInitiateMsg> { - - LinkedList<PcInitiatedLspRequest> llPcInitiatedLspRequestList; - - @Override - public PcepInitiateMsg readFrom(ChannelBuffer cb) throws PcepParseException { - - if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) { - return null; - } - - llPcInitiatedLspRequestList = new LinkedList<>(); - - byte version = cb.readByte(); - version = (byte) (version >> PcepMessageVer1.SHIFT_FLAG); - if (version != PACKET_VERSION) { - throw new PcepParseException("Wrong version. Expected=PcepVersion.PCEP_1(1), received=" + version); - } - byte type = cb.readByte(); - if (type != MSG_TYPE.getType()) { - throw new PcepParseException("Wrong type. Expected=PcepType.INITIATE(12), recived=" + type); - } - short length = cb.readShort(); - - if (length < PACKET_MINIMUM_LENGTH) { - throw new PcepParseException("Wrong length. Initiate message length expected to be >= " - + PACKET_MINIMUM_LENGTH + ", but received=" + length); - } - - log.debug("reading PcInitiate message of length " + length); - - // parse Start initiate/deletion list - if (!parsePcInitiatedLspRequestList(cb)) { - throw new PcepParseException("Parsing PCE-initiated-lsp-Request-list failed"); - } - - return new PcepInitiateMsgVer1(llPcInitiatedLspRequestList); - } - - /** - * To parse PcInitiatedLspRequestList from PcInitiate Message. - * - * @param cb of type channel buffer - * @return true if parsing PcInitiatedLspRequestList is success, false otherwise - * @throws PcepParseException while parsing from channel buffer - */ - public boolean parsePcInitiatedLspRequestList(ChannelBuffer cb) throws PcepParseException { - - boolean isDelLspRequest = false; - - if (cb == null) { - throw new PcepParseException("Channel buffer is empty"); - } - - while (0 < cb.readableBytes()) { - PcInitiatedLspRequest pceInitLspReq = new PcInitiatedLspRequestVer1(); - - //store SRP object - PcepSrpObject srpObj; - srpObj = PcepSrpObjectVer1.read(cb); - pceInitLspReq.setSrpObject(srpObj); - isDelLspRequest = srpObj.getRFlag(); - - //store LSP object - PcepLspObject lspObj; - lspObj = PcepLspObjectVer1.read(cb); - pceInitLspReq.setLspObject(lspObj); - - /* if R bit will be set then pcInitiate msg will contain only LSp and SRP objects - * so if R bit is not set then we should read for Ero and EndPoint objects also. - */ - if (!isDelLspRequest) { - - //store EndPoint object - PcepEndPointsObject endPointObj; - endPointObj = PcepEndPointsObjectVer1.read(cb); - pceInitLspReq.setEndPointsObject(endPointObj); - - //store ERO object - PcepEroObject eroObj; - eroObj = PcepEroObjectVer1.read(cb); - pceInitLspReq.setEroObject(eroObj); - - if (cb.readableBytes() > MINIMUM_COMMON_HEADER_LENGTH) { - pceInitLspReq.setPcepAttribute(PcepAttributeVer1.read(cb)); - } - } - llPcInitiatedLspRequestList.add(pceInitLspReq); - } - return true; - } - } - - /** - * Constructor to initialize PcInitiatedLspRequest. - * - * @param llPcInitiatedLspRequestList list of PcInitiatedLspRequest - */ - PcepInitiateMsgVer1(LinkedList<PcInitiatedLspRequest> llPcInitiatedLspRequestList) { - - if (llPcInitiatedLspRequestList == null) { - throw new NullPointerException("PcInitiatedLspRequestList cannot be null."); - } - this.llPcInitiatedLspRequestList = llPcInitiatedLspRequestList; - } - - /** - * Builder class for PCEP initiate message. - */ - static class Builder implements PcepInitiateMsg.Builder { - - // Pcep initiate message fields - LinkedList<PcInitiatedLspRequest> llPcInitiatedLspRequestList; - - @Override - public PcepVersion getVersion() { - return PcepVersion.PCEP_1; - } - - @Override - public PcepType getType() { - return PcepType.INITIATE; - } - - @Override - public PcepInitiateMsg build() { - return new PcepInitiateMsgVer1(this.llPcInitiatedLspRequestList); - } - - @Override - public LinkedList<PcInitiatedLspRequest> getPcInitiatedLspRequestList() { - return this.llPcInitiatedLspRequestList; - } - - @Override - public Builder setPcInitiatedLspRequestList(LinkedList<PcInitiatedLspRequest> ll) { - this.llPcInitiatedLspRequestList = ll; - return this; - } - } - - @Override - public void writeTo(ChannelBuffer cb) throws PcepParseException { - WRITER.write(cb, this); - } - - static final Writer WRITER = new Writer(); - - /** - * Writer class for writing pcep initiate message to channel buffer. - */ - static class Writer implements PcepMessageWriter<PcepInitiateMsgVer1> { - - @Override - public void write(ChannelBuffer cb, PcepInitiateMsgVer1 message) throws PcepParseException { - - boolean isDelLspRequest = false; - int startIndex = cb.writerIndex(); - // first 3 bits set to version - cb.writeByte((byte) (PACKET_VERSION << PcepMessageVer1.SHIFT_FLAG)); - // message type 0xC - 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(0); - - ListIterator<PcInitiatedLspRequest> listIterator = message.llPcInitiatedLspRequestList.listIterator(); - - while (listIterator.hasNext()) { - - PcInitiatedLspRequest listReq = listIterator.next(); - - //Srp Object is mandatory - PcepSrpObject srpObj = listReq.getSrpObject(); - if (srpObj != null) { - isDelLspRequest = srpObj.getRFlag(); - srpObj.write(cb); - } else { - throw new PcepParseException("SRP Object is mandatory for PcInitiate message."); - } - - //LSP Object is mandatory - PcepLspObject lspObj = listReq.getLspObject(); - if (lspObj != null) { - lspObj.write(cb); - } else { - throw new PcepParseException("LSP Object is mandatory for PcInitiate message."); - } - - /* if R bit will be set then pcInitiate msg will contain only LSp and SRP objects - * so if R bit is not set then we should read for Ero and EndPoint objects also. - */ - - if (!isDelLspRequest) { - - //EndPoints object is mandatory - PcepEndPointsObject endPointObj = listReq.getEndPointsObject(); - if (endPointObj != null) { - endPointObj.write(cb); - } else { - throw new PcepParseException("End points Object is mandatory for PcInitiate message."); - } - - //Ero object is mandatory - PcepEroObject eroObj = listReq.getEroObject(); - if (eroObj != null) { - eroObj.write(cb); - } else { - throw new PcepParseException("ERO Object is mandatory for PcInitiate message."); - } - - //PcepAttribute is optional - PcepAttribute pcepAttribute = listReq.getPcepAttribute(); - if (pcepAttribute != null) { - pcepAttribute.write(cb); - } - } - } - - // PCInitiate 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<PcInitiatedLspRequest> getPcInitiatedLspRequestList() { - return this.llPcInitiatedLspRequestList; - } - - @Override - public void setPcInitiatedLspRequestList(LinkedList<PcInitiatedLspRequest> ll) { - this.llPcInitiatedLspRequestList = ll; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .add("PcInitiaitedLspRequestList", llPcInitiatedLspRequestList) - .toString(); - } -} |