/*
 * Copyright 2014 Red Hat, Inc.
 *
 * Red Hat licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package io.vertx.reactivex.core.parsetools;

import io.vertx.reactivex.RxHelper;
import io.vertx.reactivex.ObservableHelper;
import io.vertx.reactivex.FlowableHelper;
import io.vertx.reactivex.impl.AsyncResultMaybe;
import io.vertx.reactivex.impl.AsyncResultSingle;
import io.vertx.reactivex.impl.AsyncResultCompletable;
import io.vertx.reactivex.WriteStreamObserver;
import io.vertx.reactivex.WriteStreamSubscriber;
import java.util.Map;
import java.util.Set;
import java.util.List;
import java.util.Iterator;
import java.util.function.Function;
import java.util.stream.Collectors;
import io.vertx.core.Handler;
import io.vertx.core.AsyncResult;
import io.vertx.core.json.JsonObject;
import io.vertx.core.json.JsonArray;
import io.vertx.lang.rx.RxGen;
import io.vertx.lang.rx.TypeArg;
import io.vertx.lang.rx.MappingIterator;

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 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. /**
 * 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.
 * <p/>
 * The parser also parses concatenated json streams or line delimited json streams.
 * <p/>
 * 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 <i>start</i>/<i>end</i> and <i>object</i>
 * events.
 * <p/>
 * Whenever the parser fails to parse or process the stream, the {@link io.vertx.reactivex.core.parsetools.JsonParser#exceptionHandler} is called with
 * the cause of the failure and the current handling stops. After such event, the parser should not handle data
 * anymore.
 *
 * <p/>
 * NOTE: This class has been automatically generated from the {@link io.vertx.core.parsetools.JsonParser original} non RX-ified interface using Vert.x codegen.
 */

@RxGen(io.vertx.core.parsetools.JsonParser.class)
public class JsonParser implements io.vertx.reactivex.core.streams.ReadStream<io.vertx.reactivex.core.parsetools.JsonEvent>, Handler<io.vertx.reactivex.core.buffer.Buffer> {

  @Override
  public String toString() {
    return delegate.toString();
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    JsonParser that = (JsonParser) o;
    return delegate.equals(that.delegate);
  }
  
  @Override
  public int hashCode() {
    return delegate.hashCode();
  }

  public static final TypeArg<JsonParser> __TYPE_ARG = new TypeArg<>(    obj -> new JsonParser((io.vertx.core.parsetools.JsonParser) obj),
    JsonParser::getDelegate
  );

  private final io.vertx.core.parsetools.JsonParser delegate;
  
  public JsonParser(io.vertx.core.parsetools.JsonParser delegate) {
    this.delegate = delegate;
  }

  public JsonParser(Object delegate) {
    this.delegate = (io.vertx.core.parsetools.JsonParser)delegate;
  }

  public io.vertx.core.parsetools.JsonParser getDelegate() {
    return delegate;
  }

  private io.reactivex.Observable<io.vertx.reactivex.core.parsetools.JsonEvent> observable;
  private io.reactivex.Flowable<io.vertx.reactivex.core.parsetools.JsonEvent> flowable;

  public synchronized io.reactivex.Observable<io.vertx.reactivex.core.parsetools.JsonEvent> toObservable() {
    if (observable == null) {
      Function<io.vertx.core.parsetools.JsonEvent, io.vertx.reactivex.core.parsetools.JsonEvent> conv = io.vertx.reactivex.core.parsetools.JsonEvent::newInstance;
      observable = ObservableHelper.toObservable(delegate, conv);
    }
    return observable;
  }

  public synchronized io.reactivex.Flowable<io.vertx.reactivex.core.parsetools.JsonEvent> toFlowable() {
    if (flowable == null) {
      Function<io.vertx.core.parsetools.JsonEvent, io.vertx.reactivex.core.parsetools.JsonEvent> conv = io.vertx.reactivex.core.parsetools.JsonEvent::newInstance;
      flowable = FlowableHelper.toFlowable(delegate, conv);
    }
    return flowable;
  }

  private static final TypeArg<io.vertx.reactivex.core.parsetools.JsonEvent> TYPE_ARG_0 = new TypeArg<io.vertx.reactivex.core.parsetools.JsonEvent>(o1 -> io.vertx.reactivex.core.parsetools.JsonEvent.newInstance((io.vertx.core.parsetools.JsonEvent)o1), o1 -> o1.getDelegate());

  
Something has happened, so handle it.
Params:
event – the event to handle/**
   * Something has happened, so handle it.
   * @param event the event to handle
   */
  public void handle(io.vertx.reactivex.core.buffer.Buffer event) { 
    delegate.handle(event.getDelegate());
  }

  
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.
Returns:
a pipe/**
   * Pause this stream and return a  to transfer the elements of this stream to a destination .
   * <p/>
   * The stream will be resumed when the pipe will be wired to a <code>WriteStream</code>.
   * @return a pipe
   */
  public io.vertx.reactivex.core.streams.Pipe<io.vertx.reactivex.core.parsetools.JsonEvent> pipe() { 
    io.vertx.reactivex.core.streams.Pipe<io.vertx.reactivex.core.parsetools.JsonEvent> ret = io.vertx.reactivex.core.streams.Pipe.newInstance((io.vertx.core.streams.Pipe)delegate.pipe(), TYPE_ARG_0);
    return ret;
  }

  
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.
Params:
dst – the destination write stream
handler – /**
   * Pipe this <code>ReadStream</code> to the <code>WriteStream</code>.
   * <p>
   * Elements emitted by this stream will be written to the write stream until this stream ends or fails.
   * <p>
   * Once this stream has ended or failed, the write stream will be ended and the <code>handler</code> will be
   * called with the result.
   * @param dst the destination write stream
   * @param handler 
   */
  public void pipeTo(io.vertx.reactivex.core.streams.WriteStream<io.vertx.reactivex.core.parsetools.JsonEvent> dst, Handler<AsyncResult<Void>> handler) { 
    delegate.pipeTo(dst.getDelegate(), 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.
Params:
dst – the destination write stream/**
   * Pipe this <code>ReadStream</code> to the <code>WriteStream</code>.
   * <p>
   * Elements emitted by this stream will be written to the write stream until this stream ends or fails.
   * <p>
   * Once this stream has ended or failed, the write stream will be ended and the <code>handler</code> will be
   * called with the result.
   * @param dst the destination write stream
   */
  public void pipeTo(io.vertx.reactivex.core.streams.WriteStream<io.vertx.reactivex.core.parsetools.JsonEvent> dst) {
    pipeTo(dst, ar -> { });
  }

  
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.
Params:
dst – the destination write stream
Returns:
/**
   * Pipe this <code>ReadStream</code> to the <code>WriteStream</code>.
   * <p>
   * Elements emitted by this stream will be written to the write stream until this stream ends or fails.
   * <p>
   * Once this stream has ended or failed, the write stream will be ended and the <code>handler</code> will be
   * called with the result.
   * @param dst the destination write stream
   * @return 
   */
  public io.reactivex.Completable rxPipeTo(io.vertx.reactivex.core.streams.WriteStream<io.vertx.reactivex.core.parsetools.JsonEvent> dst) { 
    return AsyncResultCompletable.toCompletable($handler -> {
      pipeTo(dst, $handler);
    });
  }

  
Create a new JsonParser instance.
Returns:
/**
   * Create a new <code>JsonParser</code> instance.
   * @return 
   */
  public static io.vertx.reactivex.core.parsetools.JsonParser newParser() { 
    io.vertx.reactivex.core.parsetools.JsonParser ret = io.vertx.reactivex.core.parsetools.JsonParser.newInstance((io.vertx.core.parsetools.JsonParser)io.vertx.core.parsetools.JsonParser.newParser());
    return ret;
  }

  
Create a new JsonParser instance.
Params:
stream – 
Returns:
/**
   * Create a new <code>JsonParser</code> instance.
   * @param stream 
   * @return 
   */
  public static io.vertx.reactivex.core.parsetools.JsonParser newParser(io.vertx.reactivex.core.streams.ReadStream<io.vertx.reactivex.core.buffer.Buffer> stream) { 
    io.vertx.reactivex.core.parsetools.JsonParser ret = io.vertx.reactivex.core.parsetools.JsonParser.newInstance((io.vertx.core.parsetools.JsonParser)io.vertx.core.parsetools.JsonParser.newParser(stream.getDelegate()));
    return ret;
  }

  
Create a new JsonParser instance.
Params:
stream – 
Returns:
/**
   * Create a new <code>JsonParser</code> instance.
   * @param stream 
   * @return 
   */
  public static io.vertx.reactivex.core.parsetools.JsonParser newParser(io.reactivex.Flowable<io.vertx.reactivex.core.buffer.Buffer> stream) { 
    io.vertx.reactivex.core.parsetools.JsonParser ret = io.vertx.reactivex.core.parsetools.JsonParser.newInstance((io.vertx.core.parsetools.JsonParser)io.vertx.core.parsetools.JsonParser.newParser(io.vertx.reactivex.impl.ReadStreamSubscriber.asReadStream(stream, obj -> obj.getDelegate()).resume()));
    return ret;
  }

  
Handle a Buffer, pretty much like calling Handler. 
Params:
buffer – 
Returns:
a reference to this, so the API can be used fluently/**
   * Handle a <code>Buffer</code>, pretty much like calling {@link io.vertx.core.Handler}.
   * @param buffer 
   * @return a reference to this, so the API can be used fluently
   */
  public io.vertx.reactivex.core.parsetools.JsonParser write(io.vertx.reactivex.core.buffer.Buffer buffer) { 
    delegate.write(buffer.getDelegate());
    return this;
  }

  
End the stream, this must be called after all the json stream has been processed.
/**
   * End the stream, this must be called after all the json stream has been processed.
   */
  public void end() { 
    delegate.end();
  }

  
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/**
   * Flip the parser to emit a stream of events for each new json object.
   * @return a reference to this, so the API can be used fluently
   */
  public io.vertx.reactivex.core.parsetools.JsonParser objectEventMode() { 
    delegate.objectEventMode();
    return this;
  }

  
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/**
   * Flip the parser to emit a single value event for each new json object.
   * </p>
   * Json object currently streamed won't be affected.
   * @return a reference to this, so the API can be used fluently
   */
  public io.vertx.reactivex.core.parsetools.JsonParser objectValueMode() { 
    delegate.objectValueMode();
    return this;
  }

  
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/**
   * Flip the parser to emit a stream of events for each new json array.
   * @return a reference to this, so the API can be used fluently
   */
  public io.vertx.reactivex.core.parsetools.JsonParser arrayEventMode() { 
    delegate.arrayEventMode();
    return this;
  }

  
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/**
   * Flip the parser to emit a single value event for each new json array.
   * </p>
   * Json array currently streamed won't be affected.
   * @return a reference to this, so the API can be used fluently
   */
  public io.vertx.reactivex.core.parsetools.JsonParser arrayValueMode() { 
    delegate.arrayValueMode();
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser pause() { 
    delegate.pause();
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser resume() { 
    delegate.resume();
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser fetch(long amount) { 
    delegate.fetch(amount);
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser endHandler(Handler<Void> endHandler) { 
    delegate.endHandler(endHandler);
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser handler(Handler<io.vertx.reactivex.core.parsetools.JsonEvent> handler) { 
    delegate.handler(new Handler<io.vertx.core.parsetools.JsonEvent>() {
      public void handle(io.vertx.core.parsetools.JsonEvent event) {
        handler.handle(io.vertx.reactivex.core.parsetools.JsonEvent.newInstance((io.vertx.core.parsetools.JsonEvent)event));
      }
    });
    return this;
  }

  public io.vertx.reactivex.core.parsetools.JsonParser exceptionHandler(Handler<java.lang.Throwable> handler) { 
    delegate.exceptionHandler(handler);
    return this;
  }

  public static JsonParser newInstance(io.vertx.core.parsetools.JsonParser arg) {
    return arg != null ? new JsonParser(arg) : null;
  }

}