| /** |
| * 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.security.token.delegation; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import javax.crypto.SecretKey; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.WritableUtils; |
| import org.apache.avro.reflect.Nullable; |
| |
| /** |
| * Key used for generating and verifying delegation tokens |
| */ |
| @InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"}) |
| @InterfaceStability.Evolving |
| public class DelegationKey implements Writable { |
| private int keyId; |
| private long expiryDate; |
| @Nullable |
| private byte[] keyBytes = null; |
| |
| public DelegationKey() { |
| this(0, 0L, null); |
| } |
| |
| public DelegationKey(int keyId, long expiryDate, SecretKey key) { |
| this.keyId = keyId; |
| this.expiryDate = expiryDate; |
| if (key!=null) { |
| this.keyBytes = key.getEncoded(); |
| } |
| } |
| |
| public int getKeyId() { |
| return keyId; |
| } |
| |
| public long getExpiryDate() { |
| return expiryDate; |
| } |
| |
| public SecretKey getKey() { |
| if (keyBytes == null || keyBytes.length == 0) { |
| return null; |
| } else { |
| SecretKey key = AbstractDelegationTokenSecretManager.createSecretKey(keyBytes); |
| return key; |
| } |
| } |
| |
| public void setExpiryDate(long expiryDate) { |
| this.expiryDate = expiryDate; |
| } |
| |
| /** |
| */ |
| public void write(DataOutput out) throws IOException { |
| WritableUtils.writeVInt(out, keyId); |
| WritableUtils.writeVLong(out, expiryDate); |
| if (keyBytes == null) { |
| WritableUtils.writeVInt(out, -1); |
| } else { |
| WritableUtils.writeVInt(out, keyBytes.length); |
| out.write(keyBytes); |
| } |
| } |
| |
| /** |
| */ |
| public void readFields(DataInput in) throws IOException { |
| keyId = WritableUtils.readVInt(in); |
| expiryDate = WritableUtils.readVLong(in); |
| int len = WritableUtils.readVInt(in); |
| if (len == -1) { |
| keyBytes = null; |
| } else { |
| keyBytes = new byte[len]; |
| in.readFully(keyBytes); |
| } |
| } |
| } |