org.eclipse.che.infrastructure.docker.client.MessagePumper Maven / Gradle / Ivy

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/*
 * Copyright (c) 2012-2018 Red Hat, Inc.
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Red Hat, Inc. - initial API and implementation
 */
package org.eclipse.che.infrastructure.docker.client;

import java.io.IOException;

/**
 * Pumps messages from {@code JsonMessageReader} to {@code MessageProcessor}.
 *
 * @author Alexander Garagatyi
 */
class MessagePumper {
  private final JsonMessageReader messageReader;
  private final MessageProcessor messageProcessor;

  MessagePumper(JsonMessageReader messageReader, MessageProcessor messageProcessor) {
    this.messageReader = messageReader;
    this.messageProcessor = messageProcessor;
  }

  void start() throws IOException {
    T message;
    for (; (message = messageReader.next()) != null; ) {
      messageProcessor.process(message);
    }
  }
}