Package org.rumbledb.items.parsing

Class ItemParser

java.lang.Object

org.rumbledb.items.parsing.ItemParser

All Implemented Interfaces:

Serializable

public class ItemParser
extends Object
implements Serializable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ItemParser()

Method Summary

Modifier and Type	Method	Description
static Item	convertValueToItem(Object o, org.apache.spark.sql.types.DataType fieldType, ExceptionMetadata metadata, ItemType itemType)
static Item	getItemFromObject(com.google.gson.stream.JsonReader object, ExceptionMetadata metadata)	Parses a JSON string, accessible via a reader, to an item.
static Item	getItemFromRow(org.apache.spark.sql.Row row, ExceptionMetadata metadata, ItemType itemType)	Converts a DataFrame row to an item.
static Item	getItemFromString(String string, ExceptionMetadata metadata)	Parses a JSON string to an item.
static Item	getItemFromXML(Node currentNode, String path, boolean removeParentPointers)	Parses an XML document to an item.
static Item	getItemFromYAML(com.fasterxml.jackson.dataformat.yaml.YAMLParser parser, com.fasterxml.jackson.core.JsonToken lookahead, ExceptionMetadata metadata)	Parses a JSON string, accessible via a reader, to an item.

Methods inherited from class java.lang.Object

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

Constructor Details

ItemParser

public ItemParser()

Method Details

getItemFromString

public static Item getItemFromString(String string,
 ExceptionMetadata metadata)

Parses a JSON string to an item.

Parameters:

string - the JSON string.

metadata - exception metadata is an error is thrown.

Returns:

the parsed item.

getItemFromObject

public static Item getItemFromObject(com.google.gson.stream.JsonReader object,
 ExceptionMetadata metadata)

Parses a JSON string, accessible via a reader, to an item.

Parameters:

object - the JSON reader.

metadata - exception metadata is an error is thrown.

Returns:

the parsed item.

getItemFromYAML

public static Item getItemFromYAML(com.fasterxml.jackson.dataformat.yaml.YAMLParser parser,
 com.fasterxml.jackson.core.JsonToken lookahead,
 ExceptionMetadata metadata)

Parses a JSON string, accessible via a reader, to an item.

Parameters:

parser - the YAML parser.

lookahead - the lookahead token.

metadata - exception metadata is an error is thrown.

Returns:

the parsed item.

getItemFromRow

public static Item getItemFromRow(org.apache.spark.sql.Row row,
 ExceptionMetadata metadata,
 ItemType itemType)

Converts a DataFrame row to an item.

Parameters:

row - the DataFrame row.

metadata - exception metadata is an error is thrown.

itemType - the type to annotate the output item with (for now, it can be null for no annotation).

Returns:

the converted item.

convertValueToItem

public static Item convertValueToItem(Object o,
 org.apache.spark.sql.types.DataType fieldType,
 ExceptionMetadata metadata,
 ItemType itemType)

getItemFromXML

public static Item getItemFromXML(Node currentNode,
 String path,
 boolean removeParentPointers)

Parses an XML document to an item.

Parameters:

currentNode - The current node

path - The path of the original file

Returns:

the parsed item