-
Notifications
You must be signed in to change notification settings - Fork 166
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #749 from spelletier/add_uuid_support
Add uuid support
- Loading branch information
Showing
10 changed files
with
257 additions
and
14 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
131 changes: 131 additions & 0 deletions
131
Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/UUIDUtilities.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| package er.extensions.foundation; | ||
|
|
||
| import java.security.SecureRandom; | ||
|
|
||
| import com.webobjects.foundation.NSData; | ||
|
|
||
| /** | ||
| * Helper functions for UUID | ||
| * | ||
| */ | ||
| public class UUIDUtilities { | ||
| private static final String validHexCharacters = "ABCDEF0123456789abcdef"; | ||
| static final SecureRandom randomGenerator = new SecureRandom(); | ||
|
|
||
| public final static int typeByteOffset = 6; | ||
| public final static int variationByteOffset = 8; | ||
|
|
||
|
|
||
| /** | ||
| * Generate a type 4 UUID from a secure random source like the java UUID class. | ||
| * @return a new UUID in a NSData | ||
| */ | ||
| public static NSData generateAsNSData() { | ||
| return new NSData(generateAsByteArray()); | ||
| } | ||
|
|
||
| /** | ||
| * Generate a type 4 UUID from a secure random source like the java UUID class. | ||
| * @return a new UUID in a byte[] | ||
| */ | ||
| private static byte[] generateAsByteArray() { | ||
| byte[] value = new byte[16]; | ||
| randomGenerator.nextBytes(value); | ||
|
|
||
| value[typeByteOffset] &= 0xF; // Clear the type part of the byte | ||
| value[typeByteOffset] |= 0x40; // Set the type part of the byte to random | ||
| value[variationByteOffset] &= 0x3F; // Clear the variant part of the byte | ||
| value[variationByteOffset] |= 0x80; // set to IETF variant | ||
|
|
||
| return value; | ||
| } | ||
|
|
||
| /** | ||
| * Decode a string representing a UUID in hex. | ||
| * All non hex char are filtered before the decoding, any formats are accepted. | ||
| * @param uuid the string representing a UUID | ||
| * @return the decoded UUID in a NSData | ||
| */ | ||
| static public NSData decodeStringAsNSData(String uuid) { | ||
| return new NSData(decodeStringAsByteArray(uuid)); | ||
| } | ||
|
|
||
| /** | ||
| * Decode a string representing a UUID in hex. | ||
| * All non hex char are filtered before the decoding, any formats are accepted. | ||
| * @param uuid the string representing a UUID | ||
| * @return the decoded UUID in a byte[] | ||
| */ | ||
| static public byte[] decodeStringAsByteArray(String uuid) { | ||
| if (uuid == null) { | ||
| throw new IllegalArgumentException("Null is not a valid UUID value."); | ||
| } | ||
| String cleannedUuid = ERXStringUtilities.removeExceptCharacters(uuid, validHexCharacters); | ||
| if (cleannedUuid.length() != 32) { | ||
| throw new IllegalArgumentException("\""+uuid+"\" is not a valid hex string representing a byte[16]."); | ||
| } | ||
|
|
||
| try { | ||
| return ERXStringUtilities.hexStringToByteArray(cleannedUuid); | ||
| } | ||
| catch (IllegalArgumentException e) { | ||
| throw new IllegalArgumentException("\""+uuid+"\" is not a valid hex string representing a byte[16].", e); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Encode a UUID in a String using the usual format 12345678-1234-1234-1234-123456789ABC | ||
| * @param uuid a NSData containing a UUID | ||
| * @return the encoded UUID | ||
| */ | ||
| static public String encodeAsPrettyString(NSData uuid) { | ||
| return encodeAsPrettyString(uuid.bytes()); | ||
| } | ||
|
|
||
| /** | ||
| * Encode a UUID in a String using the usual format 12345678-1234-1234-1234-123456789ABC | ||
| * @param uuid a byte[] containing a UUID | ||
| * @return the encoded UUID | ||
| */ | ||
| static public String encodeAsPrettyString(byte[] uuid) { | ||
| String rawString = encodeAsString(uuid); | ||
|
|
||
| StringBuilder formattedString = new StringBuilder(); | ||
| formattedString.append(rawString.substring(0, 8)); | ||
| formattedString.append("-"); | ||
| formattedString.append(rawString.substring(8, 12)); | ||
| formattedString.append("-"); | ||
| formattedString.append(rawString.substring(12, 16)); | ||
| formattedString.append("-"); | ||
| formattedString.append(rawString.substring(16, 20)); | ||
| formattedString.append("-"); | ||
| formattedString.append(rawString.substring(20, 32)); | ||
| return formattedString.toString(); | ||
| } | ||
|
|
||
| /** | ||
| * Encode a UUID in a String in hex | ||
| * @param uuid a NSData containing a UUID | ||
| * @return the encoded UUID | ||
| */ | ||
| static public String encodeAsString(NSData uuid) { | ||
| return encodeAsString(uuid.bytes()); | ||
| } | ||
|
|
||
| /** | ||
| * Encode a UUID in a String in hex | ||
| * @param uuid a byte[] containing a UUID | ||
| * @return the encoded UUID | ||
| */ | ||
| static public String encodeAsString(byte[] uuid) { | ||
| if (uuid == null) { | ||
| throw new IllegalArgumentException("Null is not a valid UUID value."); | ||
| } | ||
|
|
||
| String rawString = ERXStringUtilities.byteArrayToHexString(uuid); | ||
| if (uuid.length != 16) { | ||
| throw new IllegalArgumentException("\""+rawString+"\" is not a byte[16]."); | ||
| } | ||
| return rawString; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.