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;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.HashSet;
28 import java.util.List;
31 import com.att.eelf.configuration.EELFLogger;
32 import com.att.eelf.configuration.EELFManager;
34 import org.apache.http.client.methods.CloseableHttpResponse;
35 import org.apache.http.client.methods.HttpPost;
36 import org.apache.http.entity.StringEntity;
38 public class DmaapProducer extends CommonHttpClient implements Producer {
40 private static final EELFLogger LOG = EELFManager.getInstance().getLogger(DmaapProducer.class);
42 private static final String CONTENT_TYPE = "application/cambria";
43 private static final String URL_TEMPLATE = "%s/events/%s";
45 private List<String> hosts;
46 private Set<String> topics;
48 private boolean useHttps = false;
50 public DmaapProducer(Collection<String> urls, String topicName) {
51 hosts = new ArrayList<String>();
52 topics = new HashSet<String>();
53 topics.add(topicName);
55 for (String host : urls) {
56 hosts.add(formatHostString(host));
60 public DmaapProducer(Collection<String> urls, Set<String> topicNames) {
61 hosts = new ArrayList<String>();
64 for (String host : urls) {
65 hosts.add(formatHostString(host));
70 public void updateCredentials(String user, String pass) {
71 LOG.debug(String.format("Setting auth to %s for %s", user, this.toString()));
72 this.setBasicAuth(user, pass);
76 public boolean post(String partition, String data) {
79 HttpPost request = postReq(null);
80 request.setHeader("Content-Type", CONTENT_TYPE);
81 request.setEntity(new StringEntity(bodyLine(partition, data)));
83 for (String topic : topics) {
84 String uriStr = String.format(URL_TEMPLATE, hosts.get(0), topic);
86 request.setURI(new URI(uriStr));
87 CloseableHttpResponse response = getClient().execute(request);
88 if (response.getStatusLine().getStatusCode() == 200) {
92 } catch (Exception sendEx) {
93 LOG.error(String.format("Failed to send message to %s. Reason: %s", uriStr, sendEx.getMessage()),
95 if (hosts.size() > 1) {
96 String failedUrl = hosts.remove(0);
98 LOG.debug(String.format("Moving host %s to the end of the pool. New primary host is %s",
99 failedUrl, hosts.get(0)));
103 } catch (Exception buildEx) {
105 String.format("Failed to build request with string [%s]. Message not sent to any topic. Reason: %s",
106 data, buildEx.getMessage()),
109 return sent == topics.size();
113 public void useHttps(boolean yes) {
118 * Format the body for the application/cambria content type with no partitioning.
121 * The message body to format
122 * @return A string in the application/cambria content type
124 private String bodyLine(String partition, String msg) {
125 String p = (partition == null) ? "" : partition;
126 String m = (msg == null) ? "" : msg;
127 return String.format("%d.%d.%s%s", p.length(), m.length(), p, m);