Package org.apache.iceberg.util

Class JsonUtil

java.lang.Object

org.apache.iceberg.util.JsonUtil

public class JsonUtil
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	JsonUtil.FromJson<T>
static interface	JsonUtil.ToJson

Method Summary

Modifier and Type	Method	Description
static com.fasterxml.jackson.core.JsonFactory	factory()
static java.lang.String	generate(JsonUtil.ToJson toJson, boolean pretty)	Helper for writing JSON with a JsonGenerator.
static boolean	getBool(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static int	getInt(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.List<java.lang.Integer>	getIntegerList(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.Set<java.lang.Integer>	getIntegerSet(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.Set<java.lang.Integer>	getIntegerSetOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.lang.Integer	getIntOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static long	getLong(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.lang.Long	getLongOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.Set<java.lang.Long>	getLongSetOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.lang.String	getString(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.lang.String[]	getStringArray(com.fasterxml.jackson.databind.JsonNode node)
static java.util.List<java.lang.String>	getStringList(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.List<java.lang.String>	getStringListOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.Map<java.lang.String,java.lang.String>	getStringMap(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.lang.String	getStringOrNull(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static java.util.Set<java.lang.String>	getStringSet(java.lang.String property, com.fasterxml.jackson.databind.JsonNode node)
static com.fasterxml.jackson.databind.ObjectMapper	mapper()
static <T> T	parse(java.lang.String json, JsonUtil.FromJson<T> parser)	Helper for parsing JSON from a String.
static void	writeIntegerFieldIf(boolean condition, java.lang.String key, java.lang.Integer value, com.fasterxml.jackson.core.JsonGenerator generator)
static void	writeLongFieldIf(boolean condition, java.lang.String key, java.lang.Long value, com.fasterxml.jackson.core.JsonGenerator generator)

Methods inherited from class java.lang.Object

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

Method Detail

factory

public static com.fasterxml.jackson.core.JsonFactory factory()

mapper

public static com.fasterxml.jackson.databind.ObjectMapper mapper()

generate

public static java.lang.String generate(JsonUtil.ToJson toJson,
                                        boolean pretty)

Helper for writing JSON with a JsonGenerator.

Parameters:

toJson - a function to produce JSON using a JsonGenerator

pretty - whether to pretty-print JSON for readability

Returns:

a JSON string produced from the generator

parse

public static <T> T parse(java.lang.String json,
                          JsonUtil.FromJson<T> parser)

Helper for parsing JSON from a String.

Type Parameters:

T - type of objects created by the parser

Parameters:

json - a JSON string

parser - a function that converts a JsonNode to a Java object

Returns:

the parsed Java object

getInt

public static int getInt(java.lang.String property,
                         com.fasterxml.jackson.databind.JsonNode node)

getIntOrNull

public static java.lang.Integer getIntOrNull(java.lang.String property,
                                             com.fasterxml.jackson.databind.JsonNode node)

getLongOrNull

public static java.lang.Long getLongOrNull(java.lang.String property,
                                           com.fasterxml.jackson.databind.JsonNode node)

getLong

public static long getLong(java.lang.String property,
                           com.fasterxml.jackson.databind.JsonNode node)

getBool

public static boolean getBool(java.lang.String property,
                              com.fasterxml.jackson.databind.JsonNode node)

getString

public static java.lang.String getString(java.lang.String property,
                                         com.fasterxml.jackson.databind.JsonNode node)

getStringOrNull

public static java.lang.String getStringOrNull(java.lang.String property,
                                               com.fasterxml.jackson.databind.JsonNode node)

getStringMap

public static java.util.Map<java.lang.String,java.lang.String> getStringMap(java.lang.String property,
                                                                                  com.fasterxml.jackson.databind.JsonNode node)

getStringArray

public static java.lang.String[] getStringArray(com.fasterxml.jackson.databind.JsonNode node)

getStringList

public static java.util.List<java.lang.String> getStringList(java.lang.String property,
                                                             com.fasterxml.jackson.databind.JsonNode node)

getStringSet

public static java.util.Set<java.lang.String> getStringSet(java.lang.String property,
                                                           com.fasterxml.jackson.databind.JsonNode node)

getStringListOrNull

public static java.util.List<java.lang.String> getStringListOrNull(java.lang.String property,
                                                                   com.fasterxml.jackson.databind.JsonNode node)

getIntegerList

public static java.util.List<java.lang.Integer> getIntegerList(java.lang.String property,
                                                               com.fasterxml.jackson.databind.JsonNode node)

getIntegerSetOrNull

public static java.util.Set<java.lang.Integer> getIntegerSetOrNull(java.lang.String property,
                                                                   com.fasterxml.jackson.databind.JsonNode node)

getIntegerSet

public static java.util.Set<java.lang.Integer> getIntegerSet(java.lang.String property,
                                                             com.fasterxml.jackson.databind.JsonNode node)

getLongSetOrNull

public static java.util.Set<java.lang.Long> getLongSetOrNull(java.lang.String property,
                                                             com.fasterxml.jackson.databind.JsonNode node)

writeIntegerFieldIf

public static void writeIntegerFieldIf(boolean condition,
                                       java.lang.String key,
                                       java.lang.Integer value,
                                       com.fasterxml.jackson.core.JsonGenerator generator)
                                throws java.io.IOException

Throws:

java.io.IOException

writeLongFieldIf

public static void writeLongFieldIf(boolean condition,
                                    java.lang.String key,
                                    java.lang.Long value,
                                    com.fasterxml.jackson.core.JsonGenerator generator)
                             throws java.io.IOException

Throws:

java.io.IOException