Utility class for internal use only within the org.apache.tomcat.websocket package.
| 60 | * Utility class for internal use only within the {@link org.apache.tomcat.websocket} package. |
| 61 | */ |
| 62 | public class Util { |
| 63 | |
| 64 | private static final StringManager sm = StringManager.getManager(Util.class); |
| 65 | private static final Queue<SecureRandom> randoms = new ConcurrentLinkedQueue<>(); |
| 66 | |
| 67 | private Util() { |
| 68 | // Hide default constructor |
| 69 | } |
| 70 | |
| 71 | |
| 72 | static boolean isControl(byte opCode) { |
| 73 | return (opCode & 0x08) != 0; |
| 74 | } |
| 75 | |
| 76 | |
| 77 | static boolean isText(byte opCode) { |
| 78 | return opCode == Constants.OPCODE_TEXT; |
| 79 | } |
| 80 | |
| 81 | |
| 82 | static boolean isContinuation(byte opCode) { |
| 83 | return opCode == Constants.OPCODE_CONTINUATION; |
| 84 | } |
| 85 | |
| 86 | |
| 87 | static CloseCode getCloseCode(int code) { |
| 88 | if (code > 2999 && code < 5000) { |
| 89 | return CloseCodes.getCloseCode(code); |
| 90 | } |
| 91 | return switch (code) { |
| 92 | case 1000 -> CloseCodes.NORMAL_CLOSURE; |
| 93 | case 1001 -> CloseCodes.GOING_AWAY; |
| 94 | case 1002 -> CloseCodes.PROTOCOL_ERROR; |
| 95 | case 1003 -> CloseCodes.CANNOT_ACCEPT; |
| 96 | case 1004 -> |
| 97 | // Should not be used in a close frame |
| 98 | // return CloseCodes.RESERVED; |
| 99 | CloseCodes.PROTOCOL_ERROR; |
| 100 | case 1005 -> |
| 101 | // Should not be used in a close frame |
| 102 | // return CloseCodes.NO_STATUS_CODE; |
| 103 | CloseCodes.PROTOCOL_ERROR; |
| 104 | case 1006 -> |
| 105 | // Should not be used in a close frame |
| 106 | // return CloseCodes.CLOSED_ABNORMALLY; |
| 107 | CloseCodes.PROTOCOL_ERROR; |
| 108 | case 1007 -> CloseCodes.NOT_CONSISTENT; |
| 109 | case 1008 -> CloseCodes.VIOLATED_POLICY; |
| 110 | case 1009 -> CloseCodes.TOO_BIG; |
| 111 | case 1010 -> CloseCodes.NO_EXTENSION; |
| 112 | case 1011 -> CloseCodes.UNEXPECTED_CONDITION; |
| 113 | case 1012 -> |
| 114 | // Not in RFC6455 |
| 115 | // return CloseCodes.SERVICE_RESTART; |
| 116 | CloseCodes.PROTOCOL_ERROR; |
| 117 | case 1013 -> |
| 118 | // Not in RFC6455 |
| 119 | // return CloseCodes.TRY_AGAIN_LATER; |
nothing calls this directly
no test coverage detected