/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.catalina.tribes;
import java.io.Serial;
import java.io.Serializable;
import org.apache.catalina.tribes.util.Arrays;
/**
* Represents a globally unique Id.
*/
public final class UniqueId implements Serializable {
@Serial
private static final long serialVersionUID = 1L;
final byte[] id;
public UniqueId() {
this(null);
}
public UniqueId(byte[] id) {
this.id = id;
}
public UniqueId(byte[] id, int offset, int length) {
this.id = new byte[length];
System.arraycopy(id, offset, this.id, 0, length);
}
@Override
public int hashCode() {
if (id == null) {
return 0;
}
return Arrays.hashCode(id);
}
@Override
public boolean equals(Object other) {
boolean result = (other instanceof UniqueId);
if (result) {
UniqueId uid = (UniqueId) other;
if (this.id == null && uid.id == null) {
// Nothing to do
} else if (this.id == null) {
result = false;
} else if (uid.id == null) {
result = false;
} else {
result = Arrays.equals(this.id, uid.id);
}
}
return result;
}
public byte[] getBytes() {
return id;
}
@Override
public String toString() {
return "UniqueId" + Arrays.toString(id);
}
}