| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.qpid.proton.engine.impl; |
| |
| import org.apache.qpid.proton.amqp.UnsignedInteger; |
| import org.apache.qpid.proton.amqp.transport.Flow; |
| |
| class TransportSender extends TransportLink<SenderImpl> |
| { |
| private boolean _drain; |
| private DeliveryImpl _inProgressDelivery; |
| private static final UnsignedInteger ORIGINAL_DELIVERY_COUNT = UnsignedInteger.ZERO; |
| |
| TransportSender(SenderImpl link) |
| { |
| super(link); |
| setDeliveryCount(ORIGINAL_DELIVERY_COUNT); |
| link.setTransportLink(this); |
| } |
| |
| @Override |
| void handleFlow(Flow flow) |
| { |
| super.handleFlow(flow); |
| _drain = flow.getDrain(); |
| getLink().setDrain(flow.getDrain()); |
| int oldCredit = getLink().getCredit(); |
| UnsignedInteger oldLimit = getLinkCredit().add(getDeliveryCount()); |
| UnsignedInteger transferLimit = flow.getLinkCredit().add(flow.getDeliveryCount() == null |
| ? ORIGINAL_DELIVERY_COUNT |
| : flow.getDeliveryCount()); |
| UnsignedInteger linkCredit = transferLimit.subtract(getDeliveryCount()); |
| |
| setLinkCredit(linkCredit); |
| getLink().setCredit(transferLimit.subtract(oldLimit).intValue() + oldCredit); |
| |
| DeliveryImpl current = getLink().current(); |
| getLink().getConnectionImpl().workUpdate(current); |
| setLinkCredit(linkCredit); |
| } |
| |
| public void setInProgressDelivery(DeliveryImpl inProgressDelivery) |
| { |
| _inProgressDelivery = inProgressDelivery; |
| } |
| |
| public DeliveryImpl getInProgressDelivery() |
| { |
| return _inProgressDelivery; |
| } |
| } |