JsonParser (Vert.x Stack - Docs 3.9.16 API)

java.lang.Object
- io.vertx.reactivex.core.parsetools.JsonParser

All Implemented Interfaces:

Handler<Buffer>, ReadStream<JsonEvent>, StreamBase
```
public class JsonParser
extends Object
implements ReadStream<JsonEvent>, Handler<Buffer>
```
A parser class which allows to incrementally parse json elements and emit json parse events instead of parsing a json element fully. This parser is convenient for parsing large json structures.
The parser also parses concatenated json streams or line delimited json streams.
The parser can also parse entire object or array when it is convenient, for instance a very large array of small objects can be parsed efficiently by handling array start/end and object events.
Whenever the parser fails to parse or process the stream, the exceptionHandler(io.vertx.core.Handler<java.lang.Throwable>) is called with the cause of the failure and the current handling stops. After such event, the parser should not handle data anymore.
NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.

Field Summary

Fields
Modifier and Type Field and Description

static io.vertx.lang.rx.TypeArg<JsonParser> __TYPE_ARG

Fields
Modifier and Type	Field and Description
`static io.vertx.lang.rx.TypeArg<JsonParser>`	`__TYPE_ARG`

Constructor Summary

Constructors
Constructor and Description

JsonParser(JsonParser delegate)

JsonParser(Object delegate)

Constructors
Constructor and Description
`JsonParser(JsonParser delegate)`
`JsonParser(Object delegate)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`JsonParser`	`arrayEventMode()` Flip the parser to emit a stream of events for each new json array.
`JsonParser`	`arrayValueMode()` Flip the parser to emit a single value event for each new json array.
`void`	`end()` End the stream, this must be called after all the json stream has been processed.
`JsonParser`	`endHandler(Handler<Void> endHandler)` Set an end handler.
`boolean`	`equals(Object o)`
`JsonParser`	`exceptionHandler(Handler<Throwable> handler)` Set an exception handler on the read stream.
`JsonParser`	`fetch(long amount)` Fetch the specified `amount` of elements.
`JsonParser`	`getDelegate()`
`void`	`handle(Buffer event)` Something has happened, so handle it.
`JsonParser`	`handler(Handler<JsonEvent> handler)` Set a data handler.
`int`	`hashCode()`
`static JsonParser`	`newInstance(JsonParser arg)`
`static JsonParser`	`newParser()` Create a new `JsonParser` instance.
`static JsonParser`	`newParser(Flowable<Buffer> stream)` Create a new `JsonParser` instance.
`static JsonParser`	`newParser(Observable<Buffer> stream)` Create a new `JsonParser` instance.
`static JsonParser`	`newParser(ReadStream<Buffer> stream)` Create a new `JsonParser` instance.
`JsonParser`	`objectEventMode()` Flip the parser to emit a stream of events for each new json object.
`JsonParser`	`objectValueMode()` Flip the parser to emit a single value event for each new json object.
`JsonParser`	`pause()` Pause the `ReadStream`, it sets the buffer in `fetch` mode and clears the actual demand.
`Pipe<JsonEvent>`	`pipe()` Pause this stream and return a to transfer the elements of this stream to a destination .
`void`	`pipeTo(WriteStream<JsonEvent> dst)` Like `ReadStream.pipeTo(io.vertx.reactivex.core.streams.WriteStream<T>)` but with no completion handler.
`void`	`pipeTo(WriteStream<JsonEvent> dst, Handler<AsyncResult<Void>> handler)` Pipe this `ReadStream` to the `WriteStream`.
`JsonParser`	`resume()` Resume reading, and sets the buffer in `flowing` mode.
`Completable`	`rxPipeTo(WriteStream<JsonEvent> dst)` Pipe this `ReadStream` to the `WriteStream`.
`Flowable<JsonEvent>`	`toFlowable()`
`Observable<JsonEvent>`	`toObservable()`
`String`	`toString()`
`JsonParser`	`write(Buffer buffer)` Handle a `Buffer`, pretty much like calling `Handler`.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.vertx.reactivex.core.streams.ReadStream
newInstance, newInstance

Methods inherited from interface io.vertx.reactivex.core.streams.StreamBase
newInstance

- Field Detail
  - __TYPE_ARG
```
public static final io.vertx.lang.rx.TypeArg<JsonParser> __TYPE_ARG
```
- Constructor Detail
  - JsonParser
```
public JsonParser(JsonParser delegate)
```
  - JsonParser
```
public JsonParser(Object delegate)
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - getDelegate
```
public JsonParser getDelegate()
```
    Specified by:
    
    getDelegate in interface ReadStream<JsonEvent>
    
    Specified by:
    
    getDelegate in interface StreamBase
  - toObservable
```
public Observable<JsonEvent> toObservable()
```
    Specified by:
    
    toObservable in interface ReadStream<JsonEvent>
  - toFlowable
```
public Flowable<JsonEvent> toFlowable()
```
    Specified by:
    
    toFlowable in interface ReadStream<JsonEvent>
  - handle
```
public void handle(Buffer event)
```
    Something has happened, so handle it.
    
    Specified by:
    
    handle in interface Handler<Buffer>
    
    Parameters:
    
    event - the event to handle
  - pipe
```
public Pipe<JsonEvent> pipe()
```
    Pause this stream and return a to transfer the elements of this stream to a destination .
    The stream will be resumed when the pipe will be wired to a WriteStream.
    
    Specified by:
    
    pipe in interface ReadStream<JsonEvent>
    
    Returns:
    
    a pipe
  - pipeTo
```
public void pipeTo(WriteStream<JsonEvent> dst)
```
    Like ReadStream.pipeTo(io.vertx.reactivex.core.streams.WriteStream<T>) but with no completion handler.
    
    Specified by:
    
    pipeTo in interface ReadStream<JsonEvent>
    
    Parameters:
    
    dst -
  - pipeTo
```
public void pipeTo(WriteStream<JsonEvent> dst,
                   Handler<AsyncResult<Void>> handler)
```
    Pipe this ReadStream to the WriteStream.
    Elements emitted by this stream will be written to the write stream until this stream ends or fails.
    Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.
    
    Specified by:
    
    pipeTo in interface ReadStream<JsonEvent>
    
    Parameters:
    
    dst - the destination write stream
    
    handler -
  - rxPipeTo
```
public Completable rxPipeTo(WriteStream<JsonEvent> dst)
```
    Pipe this ReadStream to the WriteStream.
    Elements emitted by this stream will be written to the write stream until this stream ends or fails.
    Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.
    
    Parameters:
    
    dst - the destination write stream
    
    Returns:
  - newParser
```
public static JsonParser newParser()
```
    Create a new JsonParser instance.
    
    Returns:
  - newParser
```
public static JsonParser newParser(ReadStream<Buffer> stream)
```
    Create a new JsonParser instance.
    
    Parameters:
    
    stream -
    
    Returns:
  - newParser
```
public static JsonParser newParser(Flowable<Buffer> stream)
```
    Create a new JsonParser instance.
    
    Parameters:
    
    stream -
    
    Returns:
  - newParser
```
public static JsonParser newParser(Observable<Buffer> stream)
```
    Create a new JsonParser instance.
    
    Parameters:
    
    stream -
    
    Returns:
  - write
```
public JsonParser write(Buffer buffer)
```
    Handle a Buffer, pretty much like calling Handler.
    
    Parameters:
    
    buffer -
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - end
```
public void end()
```
    End the stream, this must be called after all the json stream has been processed.
  - objectEventMode
```
public JsonParser objectEventMode()
```
    Flip the parser to emit a stream of events for each new json object.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - objectValueMode
```
public JsonParser objectValueMode()
```
    Flip the parser to emit a single value event for each new json object.
    Json object currently streamed won't be affected.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - arrayEventMode
```
public JsonParser arrayEventMode()
```
    Flip the parser to emit a stream of events for each new json array.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - arrayValueMode
```
public JsonParser arrayValueMode()
```
    Flip the parser to emit a single value event for each new json array.
    Json array currently streamed won't be affected.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - pause
```
public JsonParser pause()
```
    Description copied from interface: ReadStream
    
    Pause the ReadStream, it sets the buffer in fetch mode and clears the actual demand.
    While it's paused, no data will be sent to the data handler.
    
    Specified by:
    
    pause in interface ReadStream<JsonEvent>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - resume
```
public JsonParser resume()
```
    Description copied from interface: ReadStream
    
    Resume reading, and sets the buffer in flowing mode.
    If the ReadStream has been paused, reading will recommence on it.
    
    Specified by:
    
    resume in interface ReadStream<JsonEvent>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - fetch
```
public JsonParser fetch(long amount)
```
    Description copied from interface: ReadStream
    
    Fetch the specified amount of elements. If the ReadStream has been paused, reading will recommence with the specified amount of items, otherwise the specified amount will be added to the current stream demand.
    
    Specified by:
    
    fetch in interface ReadStream<JsonEvent>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - endHandler
```
public JsonParser endHandler(Handler<Void> endHandler)
```
    Description copied from interface: ReadStream
    
    Set an end handler. Once the stream has ended, and there is no more data to be read, this handler will be called.
    
    Specified by:
    
    endHandler in interface ReadStream<JsonEvent>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - handler
```
public JsonParser handler(Handler<JsonEvent> handler)
```
    Description copied from interface: ReadStream
    
    Set a data handler. As data is read, the handler will be called with the data.
    
    Specified by:
    
    handler in interface ReadStream<JsonEvent>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - exceptionHandler
```
public JsonParser exceptionHandler(Handler<Throwable> handler)
```
    Description copied from interface: ReadStream
    
    Set an exception handler on the read stream.
    
    Specified by:
    
    exceptionHandler in interface ReadStream<JsonEvent>
    
    Specified by:
    
    exceptionHandler in interface StreamBase
    
    Parameters:
    
    handler - the exception handler
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - newInstance
```
public static JsonParser newInstance(JsonParser arg)
```

Class JsonParser

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface io.vertx.reactivex.core.streams.ReadStream

Methods inherited from interface io.vertx.reactivex.core.streams.StreamBase

Field Detail

__TYPE_ARG

Constructor Detail

JsonParser

JsonParser

Method Detail

toString

equals

hashCode

getDelegate

toObservable

toFlowable

handle

pipe

pipeTo

pipeTo

rxPipeTo

newParser

newParser

newParser

newParser

write

end

objectEventMode

objectValueMode

arrayEventMode

arrayValueMode

pause

resume

fetch

endHandler

handler

exceptionHandler

newInstance