2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
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=========================================================
22 package org.openecomp.appc.adapter.dmaap;
24 import java.util.List;
26 public interface Consumer {
29 * Gets a batch of messages from the topic. Defaults to 1000 messages with 15s wait for messages if empty.
31 * @return A list of strings representing the messages pulled from the topic.
33 public List<String> fetch();
36 * Gets a batch of messages from the topic.
39 * The amount of time to wait in milliseconds if the topic is empty for data to be written. Should be no
40 * less than 15000ms to prevent too many requests
42 * The amount of messages to fetch
43 * @return A list of strings representing the messages pulled from the topic.
45 public List<String> fetch(int waitMs, int limit);
48 * Updates the api credentials for making authenticated requests
51 * The public key to authenticate with
53 * The secret key to authenticate with
55 public void updateCredentials(String apiKey, String apiSecret);
57 // TODO - Implement once Cambria allows you to set outside of constructor
58 // public void setFilter(String filter);
61 * Creates a dmaap client using a https connection
64 * True if https should be used, false otherwise
66 public void useHttps(boolean yes);