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Java > Open Source Codes > com > jcorporate > expresso > core > security > AbstractRandomNumber


1 /* ====================================================================
2  * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
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59  * <http://www.jcorporate.com/>.
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61  * Portions of this software are based upon other open source
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63  */
64
65 package com.jcorporate.expresso.core.security;
66
67 /**
68  * AbstractRandomNumber.java
69  *
70  * Copyright 2000, 2001 Jcorporate Ltd.
71  */
72
73 import com.jcorporate.expresso.kernel.exception.ChainedException;
74
75
76 /**
77  * @author Michael Rimov
78  */
79 public abstract class AbstractRandomNumber {
80     /**
81      * @throws ChainedException
82      */
83     private CryptoManager cryptoManager;
84
85     public AbstractRandomNumber()
86             throws ChainedException {
87     } /* AbstractRandomNumber() */
88
89     /**
90      * getRandomBytes - Returns a byte array of random bytes. The derived
91      * class determines the actual method used for getting the random data.
92      *
93      * @param numBytes The number of bytes to retrieve
94      * @return a byte array of random bytes
95      */
96     abstract public byte[] getRandomBytes(int numBytes);
97
98     public void init() throws ChainedException {
99     }
100
101     public void setCryptoManager(CryptoManager cryptoManager) {
102         this.cryptoManager = cryptoManager;
103     }
104
105     public CryptoManager getCryptoManager() {
106         return cryptoManager;
107     }
108
109
110     /* getRandomBytes(int) */
111 } /* AbstractRandomNumber */
112
113 /* AbstractRandomNumber */
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