Package io.debezium.document

Class JacksonReader

java.lang.Object

io.debezium.document.JacksonReader

All Implemented Interfaces:

ArrayReader, DocumentReader

@ThreadSafe
final class JacksonReader
extends Object
implements DocumentReader, ArrayReader

A DocumentReader and ArrayReader that uses the Jackson library to read JSON.

Author:

Randall Hauch

Field Summary

Fields

Modifier and Type	Field	Description
static JacksonReader	DEFAULT_INSTANCE
private static com.fasterxml.jackson.core.JsonFactory	factory
static JacksonReader	FLOAT_NUMBERS_AS_TEXT_INSTANCE
private boolean	handleFloatNumbersAsText

Constructor Summary

Constructors

Modifier	Constructor	Description
private	JacksonReader(boolean handleFloatNumbersAsText)

Method Summary

Modifier and Type	Method	Description
private Document	parse(com.fasterxml.jackson.core.JsonParser parser)
private Array	parseArray(com.fasterxml.jackson.core.JsonParser parser, boolean nested)
private Document	parseDocument(com.fasterxml.jackson.core.JsonParser parser, boolean nested)
Document	read(byte[] rawBytes)	Read a document from the supplied bytes.
Document	read(File jsonFile)	Read a document from the supplied file.
Document	read(InputStream jsonStream)	Read a document from the supplied stream.
Document	read(Reader jsonReader)	Read a document from the supplied Reader.
Document	read(String json)	Read a document from the supplied JSON-formatted string.
Document	read(URL jsonUrl)	Read a document from the content at the given URL.
Array	readArray(File jsonFile)	Read an array from the supplied file.
Array	readArray(InputStream jsonStream)	Read an array from the supplied stream.
Array	readArray(Reader jsonReader)	Read an array from the supplied Reader.
Array	readArray(String jsonArray)	Read an array from the supplied JSON-formatted string.
Array	readArray(URL jsonUrl)	Read an array from the content at the given URL.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.debezium.document.ArrayReader

readArray

Field Detail

DEFAULT_INSTANCE

public static final JacksonReader DEFAULT_INSTANCE

FLOAT_NUMBERS_AS_TEXT_INSTANCE

public static final JacksonReader FLOAT_NUMBERS_AS_TEXT_INSTANCE

factory

private static final com.fasterxml.jackson.core.JsonFactory factory

handleFloatNumbersAsText

private final boolean handleFloatNumbersAsText

Constructor Detail

JacksonReader

private JacksonReader(boolean handleFloatNumbersAsText)

Method Detail

read

public Document read(InputStream jsonStream)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the supplied stream.

Specified by:

read in interface DocumentReader

Parameters:

jsonStream - the input stream to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied stream

read

public Document read(Reader jsonReader)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the supplied Reader.

Specified by:

read in interface DocumentReader

Parameters:

jsonReader - the reader to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied reader

read

public Document read(String json)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the supplied JSON-formatted string.

Specified by:

read in interface DocumentReader

Parameters:

json - the JSON string representation to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied string

read

public Document read(File jsonFile)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the supplied file.

Specified by:

read in interface DocumentReader

Parameters:

jsonFile - the file to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied file

read

public Document read(URL jsonUrl)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the content at the given URL.

Specified by:

read in interface DocumentReader

Parameters:

jsonUrl - the URL to the content that is to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied content

read

public Document read(byte[] rawBytes)
              throws IOException

Description copied from interface: DocumentReader

Read a document from the supplied bytes.

Specified by:

read in interface DocumentReader

Parameters:

rawBytes - the UTF-8 bytes to be read; may not be null

Returns:

the document instance; never null

Throws:

IOException - if a document could not be read from the supplied bytes

readArray

public Array readArray(InputStream jsonStream)
                throws IOException

Description copied from interface: ArrayReader

Read an array from the supplied stream.

Specified by:

readArray in interface ArrayReader

Parameters:

jsonStream - the input stream to be read; may not be null

Returns:

the array instance; never null

Throws:

IOException - if an array could not be read from the supplied stream

readArray

public Array readArray(Reader jsonReader)
                throws IOException

Description copied from interface: ArrayReader

Read an array from the supplied Reader.

Specified by:

readArray in interface ArrayReader

Parameters:

jsonReader - the reader to be read; may not be null

Returns:

the array instance; never null

Throws:

IOException - if an array could not be read from the supplied reader

readArray

public Array readArray(URL jsonUrl)
                throws IOException

Description copied from interface: ArrayReader

Read an array from the content at the given URL.

Specified by:

readArray in interface ArrayReader

Parameters:

jsonUrl - the URL to the content that is to be read; may not be null

Returns:

the array instance; never null

Throws:

IOException - if an array could not be read from the supplied content

readArray

public Array readArray(File jsonFile)
                throws IOException

Description copied from interface: ArrayReader

Read an array from the supplied file.

Specified by:

readArray in interface ArrayReader

Parameters:

jsonFile - the file to be read; may not be null

Returns:

the array instance; never null

Throws:

IOException - if an array could not be read from the supplied file

readArray

public Array readArray(String jsonArray)
                throws IOException

Description copied from interface: ArrayReader

Read an array from the supplied JSON-formatted string.

Specified by:

readArray in interface ArrayReader

Parameters:

jsonArray - the JSON string representation to be read; may not be null

Returns:

the array instance; never null

Throws:

IOException - if an array could not be read from the supplied string

parse

private Document parse(com.fasterxml.jackson.core.JsonParser parser)
                throws IOException

Throws:

IOException

parseDocument

private Document parseDocument(com.fasterxml.jackson.core.JsonParser parser,
                               boolean nested)
                        throws IOException

Throws:

IOException

parseArray

private Array parseArray(com.fasterxml.jackson.core.JsonParser parser,
                         boolean nested)
                  throws IOException

Throws:

IOException