2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.adapter.message;
27 import java.util.List;
29 public interface Consumer {
32 * Gets a batch of messages from the topic. Defaults to 1000 messages with 15s wait for messages if empty.
34 * @return A list of strings representing the messages pulled from the topic.
36 public List<String> fetch();
39 * Gets a batch of messages from the topic.
42 * The amount of time to wait in milliseconds if the topic is empty for data to be written. Should be no
43 * less than 15000ms to prevent too many requests
45 * The amount of messages to fetch
46 * @return A list of strings representing the messages pulled from the topic.
48 public List<String> fetch(int waitMs, int limit);
51 * Updates the api credentials for making authenticated requests
54 * The public key to authenticate with
56 * The secret key to authenticate with
58 public void updateCredentials(String apiKey, String apiSecret);
61 * Creates a dmaap client using a https connection
64 * True if https should be used, false otherwise
66 public void useHttps(boolean yes);
69 * Closes the dmaap client https connection