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/*
 * Copyright (c) 2011-2017 Pivotal Software Inc, All Rights Reserved.
 *
 * Licensed 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 reactor.core.publisher;

import java.util.Iterator;
import java.util.Objects;
import java.util.stream.Stream;

import reactor.core.CoreSubscriber;
import reactor.core.Fuseable;

/**
 * Emits the contents of a Stream source.
 *
 * @param  the value type
 *
 * @see Reactive-Streams-Commons
 */
final class FluxStream extends Flux implements Fuseable {

	final Stream stream;

	FluxStream(Stream iterable) {
		this.stream = Objects.requireNonNull(iterable, "stream");
	}

	@Override
	public void subscribe(CoreSubscriber actual) {
		Iterator it;

		try {
			it = Objects.requireNonNull(stream.iterator(),
			"The stream returned a null Iterator");
		}
		catch (Throwable e) {
			Operators.error(actual, Operators.onOperatorError(e, actual.currentContext()));
			return;
		}

		FluxIterable.subscribe(actual, it);
	}

}