1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.accumulo.core.security.tokens; 18 19 import java.io.DataInput; 20 import java.io.DataOutput; 21 import java.io.IOException; 22 23 import javax.security.auth.DestroyFailedException; 24 25 /** 26 * 27 */ 28 public class NullToken implements SecurityToken { 29 30 @Override 31 public void readFields(DataInput arg0) throws IOException { 32 return; 33 } 34 35 @Override 36 public void write(DataOutput arg0) throws IOException { 37 return; 38 } 39 40 @Override 41 public void destroy() throws DestroyFailedException { 42 return; 43 } 44 45 @Override 46 public boolean isDestroyed() { 47 return false; 48 } 49 50 public NullToken clone() { 51 return new NullToken(); 52 } 53 }