TrackerImpl.java

/*
 * Copyright 2011 the original author or authors.
 *
 * 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 io.vertx.ext.amqp.impl.protocol;

import io.vertx.ext.amqp.DeliveryState;
import io.vertx.ext.amqp.ErrorCode;
import io.vertx.ext.amqp.MessagingException;
import org.apache.qpid.proton.amqp.messaging.Accepted;
import org.apache.qpid.proton.amqp.messaging.Rejected;
import org.apache.qpid.proton.amqp.messaging.Released;

import java.util.concurrent.TimeUnit;

class TrackerImpl implements Tracker {
  private MessageDisposition _disposition = MessageDisposition.UNKNOWN;

  private DeliveryState _state = DeliveryState.UNKNOWN;

  private ConditionManager _pending = new ConditionManager(true);

  private boolean _settled = false;

  private Session _ssn;

  private Object _ctx;

  TrackerImpl(Session ssn) {
    _ssn = ssn;
  }

  @Override
  public DeliveryState getState() {
    return _state;
  }

  @Override
  public MessageDisposition getDisposition() {
    return _disposition;
  }

  public void awaitSettlement(int... flags) throws MessagingException {
    _pending.waitUntilFalse();
    if (_state == DeliveryState.LINK_FAILED) {
      throw new MessagingException(
        "The link has failed due to the underlying network connection failure. The message associated with this delivery is in-doubt",
        ErrorCode.LINK_FAILED);
    }
  }

  public void awaitSettlement(long timeout, TimeUnit unit, int... flags) throws MessagingException, TimeoutException {
    try {
      _pending.waitUntilFalse(unit.toMillis(timeout));
      if (_state == DeliveryState.LINK_FAILED) {
        throw new MessagingException(
          "The link has failed due to the underlying network connection failure. The message associated with this delivery is in-doubt",
          ErrorCode.LINK_FAILED);
      }
    } catch (ConditionManagerTimeoutException e) {
      throw new TimeoutException("The delivery was not settled within the given time period", e);
    }
  }

  @Override
  public boolean isSettled() {
    return _settled;
  }

  void markSettled() {
    _settled = true;
    _state = DeliveryState.SETTLED;
    _pending.setValueAndNotify(false);
  }

  void setDisposition(MessageDisposition disp) {
    _disposition = disp;
  }

  void setDisposition(org.apache.qpid.proton.amqp.transport.DeliveryState state) {
    if (state instanceof Accepted) {
      _disposition = MessageDisposition.ACCEPTED;
    } else if (state instanceof Released) {
      _disposition = MessageDisposition.RELEASED;
    } else if (state instanceof Rejected) {
      _disposition = MessageDisposition.REJECTED;
    }
  }

  void markLinkFailed() {
    _state = DeliveryState.LINK_FAILED;
    _pending.setValueAndNotify(false);
  }

  Object getContext() {
    return _ctx;
  }

  void setContext(Object ctx) {
    _ctx = ctx;
  }
}