org.apache.flink.table.runtime.util

类 JsonUtils

java.lang.Object

org.apache.flink.table.runtime.util.JsonUtils

public class JsonUtils
extends Object

Json scalar function util.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	JsonUtils.HashCache<K,V> An LRU cache using a linked hash map.
static class	JsonUtils.ThreadLocalHashCache<K,V> An ThreadLocal cache using a linked hash map.

字段概要

字段

限定符和类型	字段和说明
static JsonUtils.ThreadLocalHashCache<String,Object>	extractObjectCache
static JsonUtils.ThreadLocalHashCache<String,ArrayList<String>>	indexListCache
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonFactory	JSON_FACTORY
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JavaType	LIST_TYPE
static org.slf4j.Logger	LOG
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JavaType	MAP_TYPE
static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper	MAPPER
static JsonUtils.ThreadLocalHashCache<String,String>	mKeyGroup1Cache
static JsonUtils.ThreadLocalHashCache<String,Boolean>	mKeyMatchesCache
static JsonUtils.ThreadLocalHashCache<String,String[]>	pathExprCache
Pattern	patternIndex
Pattern	patternKey

构造器概要

构造器

构造器和说明
JsonUtils()

方法概要

限定符和类型	方法和说明
protected Object	extract(Object json, String path, boolean skipMapProc)
protected Object	extractJsonWithIndex(Object json, ArrayList<String> indexList)
protected Object	extractJsonWithkey(Object json, String path)
static JsonUtils	getInstance()
String	getJsonObject(String jsonString, String pathString)
String[]	getJsonObjectsWithoutDollar(String jsonString, String[] pathStrings)
static void	remove()

从类继承的方法 java.lang.Object

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

字段详细资料

LOG

public static final org.slf4j.Logger LOG

patternKey

public final Pattern patternKey

patternIndex

public final Pattern patternIndex

JSON_FACTORY

public static final org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonFactory JSON_FACTORY

MAPPER

public static final org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper MAPPER

MAP_TYPE

public static final org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JavaType MAP_TYPE

LIST_TYPE

public static final org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JavaType LIST_TYPE

extractObjectCache

public static JsonUtils.ThreadLocalHashCache<String,Object> extractObjectCache

pathExprCache

public static JsonUtils.ThreadLocalHashCache<String,String[]> pathExprCache

indexListCache

public static JsonUtils.ThreadLocalHashCache<String,ArrayList<String>> indexListCache

mKeyGroup1Cache

public static JsonUtils.ThreadLocalHashCache<String,String> mKeyGroup1Cache

mKeyMatchesCache

public static JsonUtils.ThreadLocalHashCache<String,Boolean> mKeyMatchesCache

构造器详细资料

JsonUtils

public JsonUtils()

方法详细资料

remove

public static void remove()

getInstance

public static JsonUtils getInstance()

getJsonObject

public String getJsonObject(String jsonString,
                            String pathString)

getJsonObjectsWithoutDollar

public String[] getJsonObjectsWithoutDollar(String jsonString,
                                            String[] pathStrings)

extract

protected Object extract(Object json,
                         String path,
                         boolean skipMapProc)

extractJsonWithIndex

protected Object extractJsonWithIndex(Object json,
                                      ArrayList<String> indexList)

extractJsonWithkey

protected Object extractJsonWithkey(Object json,
                                    String path)