diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/MplsLabel.java')
-rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/MplsLabel.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/MplsLabel.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/MplsLabel.java new file mode 100644 index 00000000..09a939fc --- /dev/null +++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/MplsLabel.java @@ -0,0 +1,74 @@ +package org.onlab.packet; + +/* + * Copyright 2014-2015 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. + */ + +/** + * Representation of a MPLS label. + */ +public class MplsLabel { + + private final int mplsLabel; + + // An MPLS Label maximum 20 bits. + public static final int MAX_MPLS = 0xFFFFF; + + protected MplsLabel(int value) { + this.mplsLabel = value; + } + + public static MplsLabel mplsLabel(int value) { + + if (value < 0 || value > MAX_MPLS) { + String errorMsg = "MPLS label value " + value + + " is not in the interval [0, 0xFFFFF]"; + throw new IllegalArgumentException(errorMsg); + } + return new MplsLabel(value); + } + + public int toInt() { + return this.mplsLabel; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof MplsLabel) { + + MplsLabel other = (MplsLabel) obj; + + if (this.mplsLabel == other.mplsLabel) { + return true; + } + } + + return false; + } + + @Override + public int hashCode() { + return this.mplsLabel; + } + + @Override + public String toString() { + return String.valueOf(this.mplsLabel); + } +} |