/* | |
* 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.types; | |
import java.util.Objects; | |
import org.jboss.netty.buffer.ChannelBuffer; | |
import org.onosproject.pcepio.protocol.PcepVersion; | |
import org.slf4j.Logger; | |
import org.slf4j.LoggerFactory; | |
import com.google.common.base.MoreObjects; | |
/** | |
* LabelSubObject: Provides a LabelSubObject. | |
*/ | |
public class LabelSubObject implements PcepValueType { | |
/* Reference : RFC 3209 | |
* LABEL Sub Object | |
* | |
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 | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| Type | Length | Flags | C-Type | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| Contents of Label Object | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(LabelSubObject.class); | |
public static final short TYPE = 0x03; | |
public static final short LENGTH = 8; | |
private final byte flags; | |
private final byte cType; | |
private final int contents; | |
/** | |
* constructor to initialize parameters for LabelSubObject. | |
* | |
* @param flags flags | |
* @param cType C-Type | |
* @param contents Contents of label object | |
*/ | |
public LabelSubObject(byte flags, byte cType, int contents) { | |
this.flags = flags; | |
this.cType = cType; | |
this.contents = contents; | |
} | |
/** | |
* Return an object of LabelSubObject. | |
* | |
* @param flags flags | |
* @param cType C-type | |
* @param contents contents of label objects | |
* @return object of LabelSubObject | |
*/ | |
public static LabelSubObject of(byte flags, byte cType, int contents) { | |
return new LabelSubObject(flags, cType, contents); | |
} | |
/** | |
* Returns Flags. | |
* | |
* @return flags | |
*/ | |
public byte getFlags() { | |
return flags; | |
} | |
/** | |
* Returns cType. | |
* | |
* @return cType | |
*/ | |
public byte getCtype() { | |
return cType; | |
} | |
/** | |
* Returns contents. | |
* | |
* @return contents | |
*/ | |
public int getContents() { | |
return contents; | |
} | |
@Override | |
public PcepVersion getVersion() { | |
return PcepVersion.PCEP_1; | |
} | |
@Override | |
public short getType() { | |
return TYPE; | |
} | |
@Override | |
public short getLength() { | |
return LENGTH; | |
} | |
@Override | |
public int hashCode() { | |
return Objects.hash(flags, cType, contents); | |
} | |
@Override | |
public boolean equals(Object obj) { | |
if (this == obj) { | |
return true; | |
} | |
if (obj instanceof LabelSubObject) { | |
LabelSubObject other = (LabelSubObject) obj; | |
return Objects.equals(this.flags, other.flags) && Objects.equals(this.cType, other.cType) | |
&& Objects.equals(this.contents, other.contents); | |
} | |
return false; | |
} | |
@Override | |
public int write(ChannelBuffer c) { | |
int iStartIndex = c.writerIndex(); | |
c.writeShort(TYPE); | |
c.writeShort(LENGTH); | |
c.writeByte(flags); | |
c.writeByte(cType); | |
c.writeByte(contents); | |
return c.writerIndex() - iStartIndex; | |
} | |
/** | |
* Reads the channel buffer and returns object of LabelSubObject. | |
* | |
* @param c type of channel buffer | |
* @return object of LabelSubObject | |
*/ | |
public static PcepValueType read(ChannelBuffer c) { | |
byte flags = c.readByte(); | |
byte cType = c.readByte(); | |
int contents = c.readInt(); | |
return new LabelSubObject(flags, cType, contents); | |
} | |
@Override | |
public String toString() { | |
return MoreObjects.toStringHelper(getClass()).add("type", TYPE).add("Length", LENGTH).add("flags", flags) | |
.add("C-type", cType).add("contents", contents).toString(); | |
} | |
} |