1 package org.bouncycastle.asn1; 2 3 /** 4 * class for breaking up an OID into it's component tokens, ala 5 * java.util.StringTokenizer. We need this class as some of the 6 * lightweight Java environment don't support classes like 7 * StringTokenizer. 8 */ 9 public class OIDTokenizer 10 { 11 private String oid; 12 private int index; 13 14 public OIDTokenizer( 15 String oid) 16 { 17 this.oid = oid; 18 this.index = 0; 19 } 20 21 public boolean hasMoreTokens() 22 { 23 return (index != -1); 24 } 25 26 public String nextToken() 27 { 28 if (index == -1) 29 { 30 return null; 31 } 32 33 String token; 34 int end = oid.indexOf('.', index); 35 36 if (end == -1) 37 { 38 token = oid.substring(index); 39 index = -1; 40 return token; 41 } 42 43 token = oid.substring(index, end); 44 45 index = end + 1; 46 return token; 47 } 48 } 49
