Package jakarta.websocket
Enum CloseReason.CloseCodes
- java.lang.Object
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- java.lang.Enum<CloseReason.CloseCodes>
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- jakarta.websocket.CloseReason.CloseCodes
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- All Implemented Interfaces:
CloseReason.CloseCode
,java.io.Serializable
,java.lang.Comparable<CloseReason.CloseCodes>
- Enclosing class:
- CloseReason
public static enum CloseReason.CloseCodes extends java.lang.Enum<CloseReason.CloseCodes> implements CloseReason.CloseCode
An Enumeration of status codes for a web socket close that are defined in the specification.
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Enum Constant Summary
Enum Constants Enum Constant Description CANNOT_ACCEPT
1003 indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).CLOSED_ABNORMALLY
1006 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint.GOING_AWAY
1001 indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.NO_EXTENSION
1010 indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake.NO_STATUS_CODE
1005 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint.NORMAL_CLOSURE
1000 indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.NOT_CONSISTENT
1007 indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 data within a text message).PROTOCOL_ERROR
1002 indicates that an endpoint is terminating the connection due to a protocol error.RESERVED
Reserved.SERVICE_RESTART
1012 indicates that the service will be restarted.TLS_HANDSHAKE_FAILURE
1015 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint.TOO_BIG
1009 indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.TRY_AGAIN_LATER
1013 indicates that the service is experiencing overloadUNEXPECTED_CONDITION
1011 indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.VIOLATED_POLICY
1008 indicates that an endpoint is terminating the connection because it has received a message that violates its policy.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static CloseReason.CloseCode
getCloseCode(int code)
Creates a CloseCode from the given int code number.int
getCode()
Return the code number of this status code.static CloseReason.CloseCodes
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static CloseReason.CloseCodes[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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NORMAL_CLOSURE
public static final CloseReason.CloseCodes NORMAL_CLOSURE
1000 indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.
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GOING_AWAY
public static final CloseReason.CloseCodes GOING_AWAY
1001 indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.
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PROTOCOL_ERROR
public static final CloseReason.CloseCodes PROTOCOL_ERROR
1002 indicates that an endpoint is terminating the connection due to a protocol error.
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CANNOT_ACCEPT
public static final CloseReason.CloseCodes CANNOT_ACCEPT
1003 indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).
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RESERVED
public static final CloseReason.CloseCodes RESERVED
Reserved. The specific meaning might be defined in the future.
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NO_STATUS_CODE
public static final CloseReason.CloseCodes NO_STATUS_CODE
1005 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that no status code was actually present.
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CLOSED_ABNORMALLY
public static final CloseReason.CloseCodes CLOSED_ABNORMALLY
1006 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed abnormally, e.g., without sending or receiving a Close control frame.
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NOT_CONSISTENT
public static final CloseReason.CloseCodes NOT_CONSISTENT
1007 indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 data within a text message).
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VIOLATED_POLICY
public static final CloseReason.CloseCodes VIOLATED_POLICY
1008 indicates that an endpoint is terminating the connection because it has received a message that violates its policy. This is a generic status code that can be returned when there is no other more suitable status code (e.g., 1003 or 1009) or if there is a need to hide specific details about the policy.
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TOO_BIG
public static final CloseReason.CloseCodes TOO_BIG
1009 indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.
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NO_EXTENSION
public static final CloseReason.CloseCodes NO_EXTENSION
1010 indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. The list of extensions that are needed SHOULD appear in the /reason/ part of the Close frame. Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
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UNEXPECTED_CONDITION
public static final CloseReason.CloseCodes UNEXPECTED_CONDITION
1011 indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.
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SERVICE_RESTART
public static final CloseReason.CloseCodes SERVICE_RESTART
1012 indicates that the service will be restarted.
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TRY_AGAIN_LATER
public static final CloseReason.CloseCodes TRY_AGAIN_LATER
1013 indicates that the service is experiencing overload
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TLS_HANDSHAKE_FAILURE
public static final CloseReason.CloseCodes TLS_HANDSHAKE_FAILURE
1015 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).
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Method Detail
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values
public static CloseReason.CloseCodes[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (CloseReason.CloseCodes c : CloseReason.CloseCodes.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static CloseReason.CloseCodes valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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getCloseCode
public static CloseReason.CloseCode getCloseCode(int code)
Creates a CloseCode from the given int code number. This method throws an IllegalArgumentException if the int is not one of the- Parameters:
code
- the integer code number- Returns:
- a new CloseCode with the given code number
- Throws:
java.lang.IllegalArgumentException
- if the code is not a valid close code
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getCode
public int getCode()
Return the code number of this status code.- Specified by:
getCode
in interfaceCloseReason.CloseCode
- Returns:
- the code.
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