2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package com.ericsson.testvnf.server.requestqueue;
23 import java.util.Queue;
24 import java.util.concurrent.LinkedBlockingQueue;
25 import org.apache.commons.logging.Log;
26 import org.apache.commons.logging.LogFactory;
28 import com.ericsson.testvnf.server.models.NetconfMessage;
31 * RequestQueueHandler manages incoming netconf requests from clients
33 * @author Ajith Sreekumar
36 public class RequestQueueHandler {
38 private static final Log log = LogFactory.getLog(RequestQueueHandler.class);
40 private volatile Queue<NetconfMessage> requestQueue;
42 public RequestQueueHandler() {
43 requestQueue = new LinkedBlockingQueue<>();
46 // wait until an element is added to queue, once added return it
47 public NetconfMessage waitAndGetMessageFromQueue() throws InterruptedException {
48 NetconfMessage netconfMessage = null;
49 synchronized (requestQueue) {
51 log.info("Waiting for message to be added to queue..");
52 if (!requestQueue.isEmpty()) {
53 netconfMessage = requestQueue.element();
54 requestQueue.remove(requestQueue.element());
56 if (netconfMessage != null) {
57 log.info("Message received in queue is taken for processing.");
63 return netconfMessage;
66 //add message into the queue
67 public void addToQueue(NetconfMessage netconfMessage) {
68 synchronized (requestQueue) {
69 log.info("Received a new message in queue.");
70 requestQueue.add(netconfMessage);
71 requestQueue.notifyAll();