StructuredDataMessage (Apache Log4j API 2.20.0 API)

java.lang.Object
- org.apache.logging.log4j.message.MapMessage<StructuredDataMessage,String>
- - org.apache.logging.log4j.message.StructuredDataMessage

All Implemented Interfaces:

Serializable, Message, MultiformatMessage, MultiFormatStringBuilderFormattable, StringBuilderFormattable
```
@AsynchronouslyFormattable
public class StructuredDataMessage
extends MapMessage<StructuredDataMessage,String>
```
Represents a Message that conforms to an RFC 5424 StructuredData element along with the syslog message.
Thread-safety note: the contents of this message can be modified after construction. When using asynchronous loggers and appenders it is not recommended to modify this message after the message is logged, because it is undefined whether the logged message string will contain the old values or the modified values.

See Also:

RFC 5424, Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class StructuredDataMessage.Format
Supported formats.
- Nested classes/interfaces inherited from class org.apache.logging.log4j.message.MapMessage
  MapMessage.MapFormat

Nested Classes
Modifier and Type	Class and Description
`static class`	`StructuredDataMessage.Format` Supported formats.

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`StructuredDataMessage()` Basic constructor.
	`StructuredDataMessage(String id, String msg, String type)` Creates a StructuredDataMessage using an ID (max 32 characters), message, and type (max 32 characters).
	`StructuredDataMessage(String id, String msg, String type, int maxLength)` Creates a StructuredDataMessage using an ID (user specified max characters), message, and type (user specified maximum number of characters).
	`StructuredDataMessage(String id, String msg, String type, Map<String,String> data)` Creates a StructuredDataMessage using an ID (max 32 characters), message, type (max 32 characters), and an initial map of structured data to include.
	`StructuredDataMessage(String id, String msg, String type, Map<String,String> data, int maxLength)` Creates a StructuredDataMessage using an (user specified max characters), message, and type (user specified maximum number of characters, and an initial map of structured data to include.
	`StructuredDataMessage(StructuredDataId id, String msg, String type)` Creates a StructuredDataMessage using a StructuredDataId, message, and type (max 32 characters).
	`StructuredDataMessage(StructuredDataId id, String msg, String type, int maxLength)` Creates a StructuredDataMessage using a StructuredDataId, message, and type (max 32 characters).
	`StructuredDataMessage(StructuredDataId id, String msg, String type, Map<String,String> data)` Creates a StructuredDataMessage using a StructuredDataId, message, type (max 32 characters), and an initial map of structured data to include.
	`StructuredDataMessage(StructuredDataId id, String msg, String type, Map<String,String> data, int maxLength)` Creates a StructuredDataMessage using a StructuredDataId, message, type (max 32 characters), and an initial map of structured data to include.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`asString()` Formats the structured data as described in RFC 5424.
`String`	`asString(String format)` Formats the structured data as described in RFC 5424.
`String`	`asString(StructuredDataMessage.Format format, StructuredDataId structuredDataId)` Formats the structured data as described in RFC 5424.
`void`	`asString(StructuredDataMessage.Format format, StructuredDataId structuredDataId, StringBuilder sb)` Formats the structured data as described in RFC 5424.
`boolean`	`equals(Object o)`
`void`	`formatTo(String[] formats, StringBuilder buffer)` Writes a text representation of this object into the specified `StringBuilder`, ideally without allocating temporary objects.
`void`	`formatTo(StringBuilder buffer)` Writes a text representation of this object into the specified `StringBuilder`, ideally without allocating temporary objects.
`String`	`getFormat()` Returns the message.
`String[]`	`getFormats()` Returns the supported formats.
`String`	`getFormattedMessage()` Formats the message and return it.
`String`	`getFormattedMessage(String[] formats)` Formats the message according to the specified format.
`StructuredDataId`	`getId()` Returns this message id.
`String`	`getType()` Returns this message type.
`int`	`hashCode()`
`StructuredDataMessage`	`newInstance(Map<String,String> map)` Constructs a new instance based on an existing Map.
`protected void`	`setId(String id)` Sets the id from a String.
`protected void`	`setId(StructuredDataId id)` Sets the id.
`protected void`	`setMessageFormat(String msg)`
`protected void`	`setType(String type)`
`String`	`toString()`
`protected void`	`validate(String key, boolean value)` Default implementation does nothing.
`protected void`	`validate(String key, byte value)` Default implementation does nothing.
`protected void`	`validate(String key, char value)` Default implementation does nothing.
`protected void`	`validate(String key, double value)` Default implementation does nothing.
`protected void`	`validate(String key, float value)` Default implementation does nothing.
`protected void`	`validate(String key, int value)` Default implementation does nothing.
`protected void`	`validate(String key, long value)` Default implementation does nothing.
`protected void`	`validate(String key, Object value)` Default implementation does nothing.
`protected void`	`validate(String key, short value)` Default implementation does nothing.
`protected void`	`validate(String key, String value)` Default implementation does nothing.
`protected void`	`validateKey(String key)`

Methods inherited from class org.apache.logging.log4j.message.MapMessage
appendMap, asJava, asJavaUnquoted, asJson, asXml, clear, containsKey, forEach, forEach, get, getData, getIndexedReadOnlyStringMap, getParameters, getThrowable, put, putAll, remove, toKey, with, with, with, with, with, with, with, with, with, with

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - StructuredDataMessage
```
public StructuredDataMessage(String id,
                             String msg,
                             String type)
```
    Creates a StructuredDataMessage using an ID (max 32 characters), message, and type (max 32 characters).
    
    Parameters:
    
    id - The String id.
    
    msg - The message.
    
    type - The message type.
  - StructuredDataMessage
```
public StructuredDataMessage(String id,
                             String msg,
                             String type,
                             int maxLength)
```
    Creates a StructuredDataMessage using an ID (user specified max characters), message, and type (user specified maximum number of characters).
    
    Parameters:
    
    id - The String id.
    
    msg - The message.
    
    type - The message type.
    
    maxLength - The maximum length of keys;
    
    Since:
    
    2.9
  - StructuredDataMessage
```
public StructuredDataMessage(String id,
                             String msg,
                             String type,
                             Map<String,String> data)
```
    Creates a StructuredDataMessage using an ID (max 32 characters), message, type (max 32 characters), and an initial map of structured data to include.
    
    Parameters:
    
    id - The String id.
    
    msg - The message.
    
    type - The message type.
    
    data - The StructuredData map.
  - StructuredDataMessage
```
public StructuredDataMessage(String id,
                             String msg,
                             String type,
                             Map<String,String> data,
                             int maxLength)
```
    Creates a StructuredDataMessage using an (user specified max characters), message, and type (user specified maximum number of characters, and an initial map of structured data to include.
    
    Parameters:
    
    id - The String id.
    
    msg - The message.
    
    type - The message type.
    
    data - The StructuredData map.
    
    maxLength - The maximum length of keys;
    
    Since:
    
    2.9
  - StructuredDataMessage
```
public StructuredDataMessage(StructuredDataId id,
                             String msg,
                             String type)
```
    Creates a StructuredDataMessage using a StructuredDataId, message, and type (max 32 characters).
    
    Parameters:
    
    id - The StructuredDataId.
    
    msg - The message.
    
    type - The message type.
  - StructuredDataMessage
```
public StructuredDataMessage(StructuredDataId id,
                             String msg,
                             String type,
                             int maxLength)
```
    Creates a StructuredDataMessage using a StructuredDataId, message, and type (max 32 characters).
    
    Parameters:
    
    id - The StructuredDataId.
    
    msg - The message.
    
    type - The message type.
    
    maxLength - The maximum length of keys;
    
    Since:
    
    2.9
  - StructuredDataMessage
```
public StructuredDataMessage(StructuredDataId id,
                             String msg,
                             String type,
                             Map<String,String> data)
```
    Creates a StructuredDataMessage using a StructuredDataId, message, type (max 32 characters), and an initial map of structured data to include.
    
    Parameters:
    
    id - The StructuredDataId.
    
    msg - The message.
    
    type - The message type.
    
    data - The StructuredData map.
  - StructuredDataMessage
```
public StructuredDataMessage(StructuredDataId id,
                             String msg,
                             String type,
                             Map<String,String> data,
                             int maxLength)
```
    Creates a StructuredDataMessage using a StructuredDataId, message, type (max 32 characters), and an initial map of structured data to include.
    
    Parameters:
    
    id - The StructuredDataId.
    
    msg - The message.
    
    type - The message type.
    
    data - The StructuredData map.
    
    maxLength - The maximum length of keys;
    
    Since:
    
    2.9
  - StructuredDataMessage
```
protected StructuredDataMessage()
```
    Basic constructor.
- Method Detail
  - getFormats
```
public String[] getFormats()
```
    Returns the supported formats.
    
    Specified by:
    
    getFormats in interface MultiformatMessage
    
    Overrides:
    
    getFormats in class MapMessage<StructuredDataMessage,String>
    
    Returns:
    
    An array of the supported format names.
  - getId
```
public StructuredDataId getId()
```
    Returns this message id.
    
    Returns:
    
    the StructuredDataId.
  - setId
```
protected void setId(String id)
```
    Sets the id from a String. This ID can be at most 32 characters long.
    
    Parameters:
    
    id - The String id.
  - setId
```
protected void setId(StructuredDataId id)
```
    Sets the id.
    
    Parameters:
    
    id - The StructuredDataId.
  - getType
```
public String getType()
```
    Returns this message type.
    
    Returns:
    
    the type.
  - setType
```
protected void setType(String type)
```
  - formatTo
```
public void formatTo(StringBuilder buffer)
```
    Description copied from interface: StringBuilderFormattable
    
    Writes a text representation of this object into the specified StringBuilder, ideally without allocating temporary objects.
    
    Specified by:
    
    formatTo in interface StringBuilderFormattable
    
    Overrides:
    
    formatTo in class MapMessage<StructuredDataMessage,String>
    
    Parameters:
    
    buffer - the StringBuilder to write into
  - formatTo
```
public void formatTo(String[] formats,
                     StringBuilder buffer)
```
    Description copied from interface: MultiFormatStringBuilderFormattable
    
    Writes a text representation of this object into the specified StringBuilder, ideally without allocating temporary objects.
    
    Specified by:
    
    formatTo in interface MultiFormatStringBuilderFormattable
    
    Overrides:
    
    formatTo in class MapMessage<StructuredDataMessage,String>
    
    Parameters:
    
    formats - An array of Strings that provide extra information about how to format the message. Each MultiFormatStringBuilderFormattable implementation is free to use the provided formats however they choose.
    
    buffer - the StringBuilder to write into
  - getFormat
```
public String getFormat()
```
    Returns the message.
    
    Specified by:
    
    getFormat in interface Message
    
    Overrides:
    
    getFormat in class MapMessage<StructuredDataMessage,String>
    
    Returns:
    
    the message.
  - setMessageFormat
```
protected void setMessageFormat(String msg)
```
  - asString
```
public String asString()
```
    Formats the structured data as described in RFC 5424.
    
    Overrides:
    
    asString in class MapMessage<StructuredDataMessage,String>
    
    Returns:
    
    The formatted String.
  - asString
```
public String asString(String format)
```
    Formats the structured data as described in RFC 5424.
    
    Overrides:
    
    asString in class MapMessage<StructuredDataMessage,String>
    
    Parameters:
    
    format - The format identifier. Ignored in this implementation.
    
    Returns:
    
    The formatted String.
  - asString
```
public final String asString(StructuredDataMessage.Format format,
                             StructuredDataId structuredDataId)
```
    Formats the structured data as described in RFC 5424.
    
    Parameters:
    
    format - "full" will include the type and message. null will return only the STRUCTURED-DATA as described in RFC 5424
    
    structuredDataId - The SD-ID as described in RFC 5424. If null the value in the StructuredData will be used.
    
    Returns:
    
    The formatted String.
  - asString
```
public final void asString(StructuredDataMessage.Format format,
                           StructuredDataId structuredDataId,
                           StringBuilder sb)
```
    Formats the structured data as described in RFC 5424.
    
    Parameters:
    
    format - "full" will include the type and message. null will return only the STRUCTURED-DATA as described in RFC 5424
    
    structuredDataId - The SD-ID as described in RFC 5424. If null the value in the StructuredData will be used.
    
    sb - The StringBuilder to append the formatted message to.
  - getFormattedMessage
```
public String getFormattedMessage()
```
    Formats the message and return it.
    
    Specified by:
    
    getFormattedMessage in interface Message
    
    Overrides:
    
    getFormattedMessage in class MapMessage<StructuredDataMessage,String>
    
    Returns:
    
    the formatted message.
  - getFormattedMessage
```
public String getFormattedMessage(String[] formats)
```
    Formats the message according to the specified format.
    
    Specified by:
    
    getFormattedMessage in interface MultiformatMessage
    
    Overrides:
    
    getFormattedMessage in class MapMessage<StructuredDataMessage,String>
    
    Parameters:
    
    formats - An array of Strings that provide extra information about how to format the message. StructuredDataMessage accepts only a format of "FULL" which will cause the event type to be prepended and the event message to be appended. Specifying any other value will cause only the StructuredData to be included. The default is "FULL".
    
    Returns:
    
    the formatted message.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class MapMessage<StructuredDataMessage,String>
  - newInstance
```
public StructuredDataMessage newInstance(Map<String,String> map)
```
    Description copied from class: MapMessage
    
    Constructs a new instance based on an existing Map.
    
    Overrides:
    
    newInstance in class MapMessage<StructuredDataMessage,String>
    
    Parameters:
    
    map - The Map.
    
    Returns:
    
    A new MapMessage
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class MapMessage<StructuredDataMessage,String>
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class MapMessage<StructuredDataMessage,String>
  - validate
```
protected void validate(String key,
                        boolean value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
  - validate
```
protected void validate(String key,
                        byte value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        char value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        double value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        float value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        int value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        long value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        Object value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        short value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
    
    Since:
    
    2.9
  - validate
```
protected void validate(String key,
                        String value)
```
    Description copied from class: MapMessage
    
    Default implementation does nothing.
    
    Overrides:
    
    validate in class MapMessage<StructuredDataMessage,String>
  - validateKey
```
protected void validateKey(String key)
```

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Class StructuredDataMessage

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.logging.log4j.message.MapMessage

Constructor Summary

Method Summary

Methods inherited from class org.apache.logging.log4j.message.MapMessage

Methods inherited from class java.lang.Object

Constructor Detail

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

StructuredDataMessage

Method Detail

getFormats

getId

setId

setId

getType

setType

formatTo

formatTo

getFormat

setMessageFormat

asString

asString

asString

asString

getFormattedMessage

getFormattedMessage

toString

newInstance

equals

hashCode

validate

validate

validate

validate

validate

validate

validate

validate

validate

validate

validateKey