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