diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv6Ver1.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv6Ver1.java | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv6Ver1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv6Ver1.java new file mode 100644 index 00000000..240a96f7 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv6Ver1.java @@ -0,0 +1,220 @@ +/* + * 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 org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.pcepio.exceptions.PcepParseException; +import org.onosproject.pcepio.protocol.PcepFecObjectIPv6; +import org.onosproject.pcepio.protocol.PcepVersion; +import org.onosproject.pcepio.types.PcepObjectHeader; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides Pcep Fec Object IPv6 object. + */ +public class PcepFecObjectIPv6Ver1 implements PcepFecObjectIPv6 { + + /* + * ref : draft-zhao-pce-pcep-extension-for-pce-controller-01 , section : 7.5 + * + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + // IPv6 Node ID (16 bytes) // + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + FEC Object-Type is 2 IPv6 Node ID + */ + protected static final Logger log = LoggerFactory.getLogger(PcepFecObjectIPv6Ver1.class); + + public static final byte FEC_OBJ_TYPE = 2; + public static final byte FEC_OBJ_CLASS = 63; //to be defined + public static final byte FEC_OBJECT_VERSION = 1; + public static final short FEC_OBJ_MINIMUM_LENGTH = 20; + public static final int MINIMUM_COMMON_HEADER_LENGTH = 4; + public static final int IPV6_ADDRESS_LENGTH = 16; + + static final PcepObjectHeader DEFAULT_FEC_OBJECT_HEADER = new PcepObjectHeader(FEC_OBJ_CLASS, FEC_OBJ_TYPE, + PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, FEC_OBJ_MINIMUM_LENGTH); + + private PcepObjectHeader fecObjHeader; + private byte[] nodeID = new byte[IPV6_ADDRESS_LENGTH]; + + /** + * Constructor to initialize parameters for PCEP fec object. + * + * @param fecObjHeader Fec object header + * @param nodeID node ID + */ + public PcepFecObjectIPv6Ver1(PcepObjectHeader fecObjHeader, byte[] nodeID) { + this.fecObjHeader = fecObjHeader; + this.nodeID = nodeID; + } + + /** + * Sets the Object header. + * + * @param obj object header + */ + public void setFecIpv6ObjHeader(PcepObjectHeader obj) { + this.fecObjHeader = obj; + } + + @Override + public void setNodeID(byte[] nodeID) { + this.nodeID = nodeID; + } + + /** + * Returns object header. + * + * @return fec Object Header + */ + public PcepObjectHeader getFecIpv6ObjHeader() { + return this.fecObjHeader; + } + + @Override + public byte[] getNodeID() { + return this.nodeID; + } + + /** + * reads the channel buffer and returns object of PcepFecObjectIPv6. + * + * @param cb of channel buffer. + * @return object of PcepFecObjectIPv6 + * @throws PcepParseException when fails to read from channel buffer + */ + public static PcepFecObjectIPv6 read(ChannelBuffer cb) throws PcepParseException { + + PcepObjectHeader fecObjHeader; + byte[] nodeID = new byte[IPV6_ADDRESS_LENGTH]; + fecObjHeader = PcepObjectHeader.read(cb); + cb.readBytes(nodeID, 0, IPV6_ADDRESS_LENGTH); + return new PcepFecObjectIPv6Ver1(fecObjHeader, nodeID); + } + + @Override + public int write(ChannelBuffer cb) throws PcepParseException { + + int objStartIndex = cb.writerIndex(); + + //write common header + int objLenIndex = fecObjHeader.write(cb); + cb.writeBytes(nodeID); + + //now write FEC IPv4 Object Length + cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex)); + return cb.writerIndex(); + } + + /** + * Builder class for PCEP fec object IPv6. + */ + public static class Builder implements PcepFecObjectIPv6.Builder { + private boolean bIsHeaderSet = false; + private boolean bIsNodeIdset = false; + + private PcepObjectHeader fecObjHeader; + private byte[] nodeID = new byte[IPV6_ADDRESS_LENGTH]; + + private boolean bIsPFlagSet = false; + private boolean bPFlag; + + private boolean bIsIFlagSet = false; + private boolean bIFlag; + + @Override + public PcepFecObjectIPv6 build() throws PcepParseException { + PcepObjectHeader fecObjHeader = this.bIsHeaderSet ? this.fecObjHeader : DEFAULT_FEC_OBJECT_HEADER; + + if (!this.bIsNodeIdset) { + throw new PcepParseException(" NodeID not set while building PcepFecObjectIPv6 object."); + } + if (bIsPFlagSet) { + fecObjHeader.setPFlag(bPFlag); + } + if (bIsIFlagSet) { + fecObjHeader.setIFlag(bIFlag); + } + return new PcepFecObjectIPv6Ver1(fecObjHeader, this.nodeID); + } + + @Override + public Builder setPFlag(boolean value) { + this.bPFlag = value; + this.bIsPFlagSet = true; + return this; + } + + @Override + public Builder setIFlag(boolean value) { + this.bIFlag = value; + this.bIsIFlagSet = true; + return this; + } + + @Override + public PcepObjectHeader getFecIpv6ObjHeader() { + return this.fecObjHeader; + } + + @Override + public Builder setFecIpv6ObjHeader(PcepObjectHeader obj) { + this.fecObjHeader = obj; + this.bIsHeaderSet = true; + return this; + } + + @Override + public byte[] getNodeID() { + return this.nodeID; + } + + @Override + public Builder setNodeID(byte[] value) { + this.nodeID = value; + this.bIsNodeIdset = true; + return this; + } + + } + + @Override + public PcepVersion getVersion() { + return PcepVersion.PCEP_1; + } + + @Override + public int getType() { + return FEC_OBJ_TYPE; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("fecObjHeader", fecObjHeader) + .add("NodeID: ", nodeID) + .toString(); + } +} |