diff options
Diffstat (limited to 'framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java')
-rw-r--r-- | framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java b/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java new file mode 100644 index 00000000..c927eea5 --- /dev/null +++ b/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrUnRsrvdLinkBandwidth.java @@ -0,0 +1,163 @@ +/* + * 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.attr; + +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.types.BgpErrorType; +import org.onosproject.bgpio.types.BgpValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP unreserved bandwidth attribute. + */ +public class BgpLinkAttrUnRsrvdLinkBandwidth implements BgpValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrUnRsrvdLinkBandwidth.class); + + public static final int MAX_BANDWIDTH_LEN = 4; + public static final int NO_OF_BITS = 8; + public static final int NO_OF_PRIORITY = 8; + + public short sType; + + /* ISIS administrative group */ + private List<Float> maxUnResBandwidth = new ArrayList<Float>(); + + /** + * Constructor to initialize the values. + * + * @param maxUnResBandwidth Maximum Unreserved bandwidth + * @param sType returns the tag value + */ + public BgpLinkAttrUnRsrvdLinkBandwidth(List<Float> maxUnResBandwidth, + short sType) { + this.maxUnResBandwidth = maxUnResBandwidth; + this.sType = sType; + } + + /** + * Returns object of this class with specified values. + * + * @param linkPfxMetric Prefix Metric + * @param sType returns the tag value + * @return object of BgpLinkAttrUnRsrvdLinkBandwidth + */ + public static BgpLinkAttrUnRsrvdLinkBandwidth of(List<Float> linkPfxMetric, short sType) { + return new BgpLinkAttrUnRsrvdLinkBandwidth(linkPfxMetric, sType); + } + + /** + * Reads the BGP link attributes of Maximum link bandwidth. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrMaxLinkBandwidth + * @throws BgpParseException while parsing BgpLinkAttrMaxLinkBandwidth + */ + public static BgpLinkAttrUnRsrvdLinkBandwidth read(ChannelBuffer cb, + short sType) + throws BgpParseException { + ArrayList<Float> maxUnResBandwidth = new ArrayList<Float>(); + float tmp; + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != MAX_BANDWIDTH_LEN * NO_OF_PRIORITY) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < NO_OF_PRIORITY; i++) { + tmp = ieeeToFloatRead(cb.readInt()) * NO_OF_BITS; + maxUnResBandwidth.add(new Float(tmp)); + } + + return BgpLinkAttrUnRsrvdLinkBandwidth.of(maxUnResBandwidth, sType); + } + + /** + * Returns maximum unreserved bandwidth. + * + * @return unreserved bandwidth. + */ + public List<Float> getLinkAttrUnRsrvdLinkBandwidth() { + return maxUnResBandwidth; + } + + /** + * Parse the IEEE floating point notation and returns it in normal float. + * + * @param iVal IEEE floating point number + * @return normal float + */ + static float ieeeToFloatRead(int iVal) { + iVal = (((iVal & 0xFF) << 24) | ((iVal & 0xFF00) << 8) + | ((iVal & 0xFF0000) >> 8) | ((iVal >> 24) & 0xFF)); + + return Float.intBitsToFloat(iVal); + } + + @Override + public short getType() { + return this.sType; + } + + @Override + public int hashCode() { + return Objects.hash(maxUnResBandwidth); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrUnRsrvdLinkBandwidth) { + BgpLinkAttrUnRsrvdLinkBandwidth other = (BgpLinkAttrUnRsrvdLinkBandwidth) obj; + return Objects.equals(maxUnResBandwidth, other.maxUnResBandwidth); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()).omitNullValues() + .add("maxUnResBandwidth", maxUnResBandwidth).toString(); + } + + @Override + public int compareTo(Object o) { + // TODO Auto-generated method stub + return 0; + } +} |