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/*
 * Copyright (c) 2011-2020 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 * which is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 */
package io.vertx.core.impl;

import io.netty.channel.EventLoop;
import io.vertx.core.*;
import io.vertx.core.json.JsonObject;
import io.vertx.core.spi.tracing.VertxTracer;

import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executor;

/**
 * A context that forwards most operations to a delegate. This context
 *
 * 
 *   maintains its own ordered task queue, ordered execute blocking are ordered on this
 *  context instead of the delegate.
 *  maintains its own local data instead of the delegate.
 * 
 *
 * @author Julien Viet
 */
final class DuplicatedContext extends ContextBase implements ContextInternal {

  final ContextImpl delegate;

  DuplicatedContext(ContextImpl delegate) {
    super(delegate);
    this.delegate = delegate;
  }

  @Override
  public ThreadingModel threadingModel() {
    return delegate.threadingModel();
  }

  @Override
  public boolean inThread() {
    return delegate.inThread();
  }

  @Override
  public final CloseFuture closeFuture() {
    return delegate.closeFuture();
  }

  @Override
  public final VertxTracer tracer() {
    return delegate.tracer();
  }

  @Override
  public final JsonObject config() {
    return delegate.config();
  }

  @Override
  public final Context exceptionHandler(Handler handler) {
    delegate.exceptionHandler(handler);
    return this;
  }

  @Override
  public Executor executor() {
    return delegate.executor();
  }

  @Override
  public final Handler exceptionHandler() {
    return delegate.exceptionHandler();
  }

  @Override
  public final EventLoop nettyEventLoop() {
    return delegate.nettyEventLoop();
  }

  @Override
  public final Deployment getDeployment() {
    return delegate.getDeployment();
  }

  @Override
  public final VertxInternal owner() {
    return delegate.owner();
  }

  @Override
  public final ClassLoader classLoader() {
    return delegate.classLoader();
  }

  @Override
  public WorkerPool workerPool() {
    return delegate.workerPool();
  }

  @Override
  public final void reportException(Throwable t) {
    delegate.reportException(t);
  }

  @Override
  public final ConcurrentMap contextData() {
    return delegate.contextData();
  }

  @Override
  public final  Future executeBlockingInternal(Handler> action) {
    return ContextImpl.executeBlocking(this, action, delegate.internalWorkerPool, delegate.internalOrderedTasks);
  }

  @Override
  public  Future executeBlockingInternal(Callable action) {
    return ContextImpl.executeBlocking(this, action, delegate.internalWorkerPool, delegate.internalOrderedTasks);
  }

  @Override
  public final  Future executeBlockingInternal(Handler> action, boolean ordered) {
    return ContextImpl.executeBlocking(this, action, delegate.internalWorkerPool, ordered ? delegate.internalOrderedTasks : null);
  }

  @Override
  public  Future executeBlockingInternal(Callable action, boolean ordered) {
    return ContextImpl.executeBlocking(this, action, delegate.internalWorkerPool, ordered ? delegate.internalOrderedTasks : null);
  }

  @Override
  public final  Future executeBlocking(Handler> action, boolean ordered) {
    return ContextImpl.executeBlocking(this, action, delegate.workerPool, ordered ? delegate.orderedTasks : null);
  }

  @Override
  public final  Future executeBlocking(Callable blockingCodeHandler, boolean ordered) {
    return ContextImpl.executeBlocking(this, blockingCodeHandler, delegate.workerPool, ordered ? delegate.orderedTasks : null);
  }

  @Override
  public final  Future executeBlocking(Handler> blockingCodeHandler, TaskQueue queue) {
    return ContextImpl.executeBlocking(this, blockingCodeHandler, delegate.workerPool, queue);
  }

  @Override
  public final  Future executeBlocking(Callable blockingCodeHandler, TaskQueue queue) {
    return ContextImpl.executeBlocking(this, blockingCodeHandler, delegate.workerPool, queue);
  }

  @Override
  public final  void execute(T argument, Handler task) {
    delegate.execute(this, argument, task);
  }

  @Override
  public  void emit(T argument, Handler task) {
    delegate.emit(this, argument, task);
  }

  @Override
  public void execute(Runnable task) {
    delegate.execute(this, task);
  }

  @Override
  public boolean isEventLoopContext() {
    return delegate.isEventLoopContext();
  }

  @Override
  public boolean isWorkerContext() {
    return delegate.isWorkerContext();
  }

  @Override
  public ContextInternal duplicate() {
    return new DuplicatedContext(delegate);
  }

  @Override
  public ContextInternal unwrap() {
    return delegate;
  }

  @Override
  public boolean isDuplicate() {
    return true;
  }
}