net.logstash.logback.composite

Class JsonWritingUtils

java.lang.Object

net.logstash.logback.composite.JsonWritingUtils

public class JsonWritingUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
JsonWritingUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	shouldWriteField(String fieldName)
static void	writeMapEntries(com.fasterxml.jackson.core.JsonGenerator generator, Map<?,?> map) Writes entries of the map as fields.
static void	writeMapStringFields(com.fasterxml.jackson.core.JsonGenerator generator, String fieldName, Map<String,String> map) Writes a map as String fields to the generator if and only if the fieldName and values are not null.
static void	writeMapStringFields(com.fasterxml.jackson.core.JsonGenerator generator, String fieldName, Map<String,String> map, boolean lowerCaseKeys) Writes a map as String fields to the generator if and only if the fieldName and values are not null.
static void	writeNumberField(com.fasterxml.jackson.core.JsonGenerator generator, String fieldName, int fieldValue) Writes the field to the generator if and only if the fieldName is not null.
static void	writeNumberField(com.fasterxml.jackson.core.JsonGenerator generator, String fieldName, long fieldValue) Writes the field to the generator if and only if the fieldName is not null.
static void	writeStringField(com.fasterxml.jackson.core.JsonGenerator generator, String fieldName, String fieldValue) Writes the field to the generator if and only if the fieldName and fieldValue are not null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsonWritingUtils

public JsonWritingUtils()

Method Detail

writeMapEntries

public static void writeMapEntries(com.fasterxml.jackson.core.JsonGenerator generator,
                                   Map<?,?> map)
                            throws IOException,
                                   com.fasterxml.jackson.databind.JsonMappingException

Writes entries of the map as fields.

Throws:

IOException

com.fasterxml.jackson.databind.JsonMappingException

writeMapStringFields

public static void writeMapStringFields(com.fasterxml.jackson.core.JsonGenerator generator,
                                        String fieldName,
                                        Map<String,String> map)
                                 throws IOException,
                                        com.fasterxml.jackson.databind.JsonMappingException

Writes a map as String fields to the generator if and only if the fieldName and values are not null.

Throws:

IOException

com.fasterxml.jackson.databind.JsonMappingException

writeMapStringFields

public static void writeMapStringFields(com.fasterxml.jackson.core.JsonGenerator generator,
                                        String fieldName,
                                        Map<String,String> map,
                                        boolean lowerCaseKeys)
                                 throws IOException,
                                        com.fasterxml.jackson.databind.JsonMappingException

Writes a map as String fields to the generator if and only if the fieldName and values are not null.

Parameters:

lowerCaseKeys - when true, the map keys will be written in lowercase.

Throws:

IOException

com.fasterxml.jackson.databind.JsonMappingException

writeStringField

public static void writeStringField(com.fasterxml.jackson.core.JsonGenerator generator,
                                    String fieldName,
                                    String fieldValue)
                             throws IOException

Writes the field to the generator if and only if the fieldName and fieldValue are not null.

Throws:

IOException

writeNumberField

public static void writeNumberField(com.fasterxml.jackson.core.JsonGenerator generator,
                                    String fieldName,
                                    int fieldValue)
                             throws IOException

Writes the field to the generator if and only if the fieldName is not null.

Throws:

IOException

writeNumberField

public static void writeNumberField(com.fasterxml.jackson.core.JsonGenerator generator,
                                    String fieldName,
                                    long fieldValue)
                             throws IOException

Writes the field to the generator if and only if the fieldName is not null.

Throws:

IOException

shouldWriteField

public static boolean shouldWriteField(String fieldName)