Java tutorial
/** * 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.hadoop.hdfs.protocol; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; import org.apache.hadoop.classification.InterfaceAudience; import org.apache.hadoop.classification.InterfaceStability; import org.apache.hadoop.crypto.CipherSuite; import org.apache.hadoop.crypto.CryptoProtocolVersion; /** * A simple class for representing an encryption zone. Presently an encryption * zone only has a path (the root of the encryption zone), a key name, and a * unique id. The id is used to implement batched listing of encryption zones. */ @InterfaceAudience.Public @InterfaceStability.Evolving public class EncryptionZone { private final long id; private final String path; private final CipherSuite suite; private final CryptoProtocolVersion version; private final String keyName; public EncryptionZone(long id, String path, CipherSuite suite, CryptoProtocolVersion version, String keyName) { this.id = id; this.path = path; this.suite = suite; this.version = version; this.keyName = keyName; } public long getId() { return id; } public String getPath() { return path; } public CipherSuite getSuite() { return suite; } public CryptoProtocolVersion getVersion() { return version; } public String getKeyName() { return keyName; } @Override public int hashCode() { return new HashCodeBuilder(13, 31).append(id).append(path).append(suite).append(version).append(keyName) .toHashCode(); } @Override public boolean equals(Object obj) { if (obj == null) { return false; } if (obj == this) { return true; } if (obj.getClass() != getClass()) { return false; } EncryptionZone rhs = (EncryptionZone) obj; return new EqualsBuilder().append(id, rhs.id).append(path, rhs.path).append(suite, rhs.suite) .append(version, rhs.version).append(keyName, rhs.keyName).isEquals(); } @Override public String toString() { return "EncryptionZone [id=" + id + ", path=" + path + ", suite=" + suite + ", version=" + version + ", keyName=" + keyName + "]"; } }