| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.atmos.domain.internal; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | |
| 23 | import java.util.LinkedHashSet; |
| 24 | |
| 25 | import javax.annotation.Nullable; |
| 26 | |
| 27 | import org.jclouds.atmos.domain.BoundedSet; |
| 28 | |
| 29 | import com.google.common.collect.Iterables; |
| 30 | |
| 31 | /** |
| 32 | * |
| 33 | * @author Adrian Cole |
| 34 | * |
| 35 | */ |
| 36 | public class BoundedLinkedHashSet<T> extends LinkedHashSet<T> implements BoundedSet<T> { |
| 37 | |
| 38 | /** The serialVersionUID */ |
| 39 | private static final long serialVersionUID = -7133632087734650835L; |
| 40 | protected final String token; |
| 41 | |
| 42 | public BoundedLinkedHashSet(Iterable<T> contents, @Nullable String token) { |
| 43 | Iterables.addAll(this, checkNotNull(contents, "contents")); |
| 44 | this.token = token; |
| 45 | } |
| 46 | |
| 47 | @Nullable |
| 48 | public String getToken() { |
| 49 | return token; |
| 50 | } |
| 51 | |
| 52 | @Override |
| 53 | public int hashCode() { |
| 54 | final int prime = 31; |
| 55 | int result = super.hashCode(); |
| 56 | result = prime * result + ((token == null) ? 0 : token.hashCode()); |
| 57 | return result; |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public boolean equals(Object obj) { |
| 62 | if (this == obj) |
| 63 | return true; |
| 64 | if (!super.equals(obj)) |
| 65 | return false; |
| 66 | if (getClass() != obj.getClass()) |
| 67 | return false; |
| 68 | BoundedLinkedHashSet<?> other = (BoundedLinkedHashSet<?>) obj; |
| 69 | if (token == null) { |
| 70 | if (other.token != null) |
| 71 | return false; |
| 72 | } else if (!token.equals(other.token)) |
| 73 | return false; |
| 74 | return true; |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public String toString() { |
| 79 | return "[token=" + token + ", contents=" + super.toString() + "]"; |
| 80 | } |
| 81 | |
| 82 | } |