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Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepBandwidthObjectVer1.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepBandwidthObjectVer1.java | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepBandwidthObjectVer1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepBandwidthObjectVer1.java new file mode 100644 index 00000000..1c78d5b4 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepBandwidthObjectVer1.java @@ -0,0 +1,233 @@ +/* + * 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.PcepBandwidthObject; +import org.onosproject.pcepio.types.PcepObjectHeader; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Provides PcepBandwidthObject. + */ +public class PcepBandwidthObjectVer1 implements PcepBandwidthObject { + + /* + * RFC : 5440 , section : 7.7. + 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 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Bandwidth | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + The BANDWIDTH Object format + */ + + protected static final Logger log = LoggerFactory.getLogger(PcepBandwidthObjectVer1.class); + /* + * Requested bandwidth: BANDWIDTH Object-Type is 1. + Bandwidth of an existing TE LSP for which a re-optimization is + requested. BANDWIDTH Object-Type is 2. + */ + //Right now handling type 1 + public static final byte BANDWIDTH_OBJ_TYPE = 1; + public static final byte BANDWIDTH_OBJ_CLASS = 5; + public static final byte BANDWIDTH_OBJECT_VERSION = 1; + public static final short BANDWIDTH_OBJ_MINIMUM_LENGTH = 8; + + static final PcepObjectHeader DEFAULT_BANDWIDTH_OBJECT_HEADER = new PcepObjectHeader(BANDWIDTH_OBJ_CLASS, + BANDWIDTH_OBJ_TYPE, PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, + BANDWIDTH_OBJ_MINIMUM_LENGTH); + + private PcepObjectHeader bandwidthObjHeader; + private int iBandwidth; + + /** + * Constructor to bandwidth object header and bandwidth. + * + * @param bandwidthObjHeader bandwidth object header + * @param iBandwidth bandwidth value + */ + public PcepBandwidthObjectVer1(PcepObjectHeader bandwidthObjHeader, int iBandwidth) { + this.bandwidthObjHeader = bandwidthObjHeader; + this.iBandwidth = iBandwidth; + } + + /** + * Constructor to initialize bandwidth. + * + * @param iBandwidth bandwidth value + */ + public PcepBandwidthObjectVer1(int iBandwidth) { + this.bandwidthObjHeader = DEFAULT_BANDWIDTH_OBJECT_HEADER; + this.iBandwidth = iBandwidth; + } + + /** + * Returns Object Header. + * + * @return bandwidthObjHeader + */ + public PcepObjectHeader getBandwidthObjHeader() { + return this.bandwidthObjHeader; + } + + /** + * Sets Object Header. + * + * @param obj bandwidth object header + */ + public void setBandwidthObjHeader(PcepObjectHeader obj) { + this.bandwidthObjHeader = obj; + } + + @Override + public int getBandwidth() { + return this.iBandwidth; + } + + @Override + public void setBandwidth(int iBandwidth) { + this.iBandwidth = iBandwidth; + } + + /** + * Reads from channel buffer and returns object of PcepBandwidthObject. + * + * @param cb channel buffer to parse + * @return object of PcepBandwidthObject + * @throws PcepParseException while parsing channel buffer + */ + public static PcepBandwidthObject read(ChannelBuffer cb) throws PcepParseException { + + PcepObjectHeader bandwidthObjHeader; + int iBandwidth; + + bandwidthObjHeader = PcepObjectHeader.read(cb); + iBandwidth = cb.readInt(); + + return new PcepBandwidthObjectVer1(bandwidthObjHeader, iBandwidth); + } + + @Override + public int write(ChannelBuffer cb) throws PcepParseException { + + //write Object header + int objStartIndex = cb.writerIndex(); + int objLenIndex = bandwidthObjHeader.write(cb); + + if (objLenIndex <= 0) { + throw new PcepParseException("Failed to write bandwidth object header. Index " + objLenIndex); + } + + cb.writeInt(iBandwidth); + short hLength = (short) (cb.writerIndex() - objStartIndex); + cb.setShort(objLenIndex, hLength); + //will be helpful during print(). + bandwidthObjHeader.setObjLen(hLength); + + return cb.writerIndex() - objStartIndex; + } + + /** + * builder class for PCEP bandwidth object. + */ + public static class Builder implements PcepBandwidthObject.Builder { + + private PcepObjectHeader bandwidthObjHeader; + private boolean bIsHeaderSet = false; + + private int iBandwidth; + private boolean bIsBandwidthSet = false; + + private boolean bPFlag; + private boolean bIsPFlagSet = false; + + private boolean bIFlag; + private boolean bIsIFlagSet = false; + + @Override + public PcepBandwidthObject build() throws PcepParseException { + + PcepObjectHeader bandwidthObjHeader = this.bIsHeaderSet ? this.bandwidthObjHeader + : DEFAULT_BANDWIDTH_OBJECT_HEADER; + + if (bIsPFlagSet) { + bandwidthObjHeader.setPFlag(bPFlag); + } + + if (bIsIFlagSet) { + bandwidthObjHeader.setIFlag(bIFlag); + } + + if (!this.bIsBandwidthSet) { + throw new PcepParseException("bandwidth not Set while building Bandwidth Object."); + } + + return new PcepBandwidthObjectVer1(bandwidthObjHeader, iBandwidth); + } + + @Override + public int getBandwidth() { + return this.iBandwidth; + } + + @Override + public PcepObjectHeader getBandwidthObjHeader() { + return this.bandwidthObjHeader; + } + + @Override + public Builder setBandwidthObjHeader(PcepObjectHeader obj) { + this.bandwidthObjHeader = obj; + return this; + } + + @Override + public Builder setBandwidth(int iBandwidth) { + this.iBandwidth = iBandwidth; + this.bIsBandwidthSet = true; + return this; + } + + @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 String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("BandwidthObjectHeader", bandwidthObjHeader) + .add("Bandwidth", iBandwidth).toString(); + } +} |