| /* |
| * Copyright 2015-present 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.net.group; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Default implementation of group key interface. |
| */ |
| public class DefaultGroupKey implements GroupKey { |
| private final byte[] key; |
| protected static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray(); |
| |
| public DefaultGroupKey(byte[] key) { |
| this.key = checkNotNull(key); |
| } |
| |
| @Override |
| public byte[] key() { |
| return key; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (!(o instanceof DefaultGroupKey)) { |
| return false; |
| } |
| DefaultGroupKey that = (DefaultGroupKey) o; |
| return (Arrays.equals(this.key, that.key)); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(this.key); |
| } |
| |
| /** |
| * Returns a hex string representation of the byte array that is used |
| * as a group key. This solution was adapted from |
| * http://stackoverflow.com/questions/9655181/ |
| */ |
| @Override |
| public String toString() { |
| char[] hexChars = new char[key.length * 2]; |
| for (int j = 0; j < key.length; j++) { |
| int v = key[j] & 0xFF; |
| hexChars[j * 2] = HEX_ARRAY[v >>> 4]; |
| hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F]; |
| } |
| return "0x" + new String(hexChars); |
| } |
| } |