diff options
Diffstat (limited to 'core/src/main/java/org/spongycastle/asn1/OIDTokenizer.java')
-rw-r--r-- | core/src/main/java/org/spongycastle/asn1/OIDTokenizer.java | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/OIDTokenizer.java b/core/src/main/java/org/spongycastle/asn1/OIDTokenizer.java new file mode 100644 index 00000000..e618f4b9 --- /dev/null +++ b/core/src/main/java/org/spongycastle/asn1/OIDTokenizer.java @@ -0,0 +1,48 @@ +package org.spongycastle.asn1; + +/** + * class for breaking up an OID into it's component tokens, ala + * java.util.StringTokenizer. We need this class as some of the + * lightweight Java environment don't support classes like + * StringTokenizer. + */ +public class OIDTokenizer +{ + private String oid; + private int index; + + public OIDTokenizer( + String oid) + { + this.oid = oid; + this.index = 0; + } + + public boolean hasMoreTokens() + { + return (index != -1); + } + + public String nextToken() + { + if (index == -1) + { + return null; + } + + String token; + int end = oid.indexOf('.', index); + + if (end == -1) + { + token = oid.substring(index); + index = -1; + return token; + } + + token = oid.substring(index, end); + + index = end + 1; + return token; + } +} |