Merge of new rebased code

[appc.git] / appc-adapters / appc-dmaap-adapter / appc-dmaap-adapter-bundle / src / main / java / org / openecomp / appc / adapter / messaging / dmaap / http / HttpDmaapProducerImpl.java

diff --git a/appc-adapters/appc-dmaap-adapter/appc-dmaap-adapter-bundle/src/main/java/org/openecomp/appc/adapter/messaging/dmaap/http/HttpDmaapProducerImpl.java b/appc-adapters/appc-dmaap-adapter/appc-dmaap-adapter-bundle/src/main/java/org/openecomp/appc/adapter/messaging/dmaap/http/HttpDmaapProducerImpl.java
new file mode 100644 (file)
index 0000000..85e446d
--- /dev/null
+++ b/appc-adapters/appc-dmaap-adapter/appc-dmaap-adapter-bundle/src/main/java/org/openecomp/appc/adapter/messaging/dmaap/http/HttpDmaapProducerImpl.java
@@ -0,0 +1,135 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : APP-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ *                                             reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.appc.adapter.messaging.dmaap.http;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
+import org.openecomp.appc.adapter.message.Producer;
+
+public class HttpDmaapProducerImpl extends CommonHttpClient implements Producer {
+
+    private static final EELFLogger LOG = EELFManager.getInstance().getLogger(HttpDmaapProducerImpl.class);
+
+    private static final String CONTENT_TYPE = "application/cambria";
+    private static final String URL_TEMPLATE = "%s/events/%s";
+
+    private List<String> hosts;
+    private Set<String> topics;
+
+    private boolean useHttps = false;
+
+    public HttpDmaapProducerImpl(Collection<String> urls, String topicName) {
+        hosts = new ArrayList<String>();
+        topics = new HashSet<String>();
+        topics.add(topicName);
+
+        for (String host : urls) {
+            hosts.add(formatHostString(host));
+        }
+    }
+
+    public HttpDmaapProducerImpl(Collection<String> urls, Set<String> topicNames) {
+        hosts = new ArrayList<String>();
+        topics = topicNames;
+
+        for (String host : urls) {
+            hosts.add(formatHostString(host));
+        }
+    }
+
+    @Override
+    public void updateCredentials(String user, String pass) {
+        LOG.debug(String.format("Setting auth to %s for %s", user, this.toString()));
+        this.setBasicAuth(user, pass);
+    }
+
+    @Override
+    public boolean post(String partition, String data) {
+        int sent = 0;
+        try {
+            HttpPost request = postReq(null);
+            request.setHeader("Content-Type", CONTENT_TYPE);
+            request.setEntity(new StringEntity(bodyLine(partition, data)));
+
+            for (String topic : topics) {
+                String uriStr = String.format(URL_TEMPLATE, hosts.get(0), topic);
+                try {
+                    request.setURI(new URI(uriStr));
+                    CloseableHttpResponse response = getClient().execute(request);
+                    if (response.getStatusLine().getStatusCode() == 200) {
+                        sent++;
+                    }
+                    response.close();
+                } catch (Exception sendEx) {
+                    LOG.error(String.format("Failed to send message to %s. Reason: %s", uriStr, sendEx.getMessage()),
+                        sendEx);
+                    if (hosts.size() > 1) {
+                        String failedUrl = hosts.remove(0);
+                        hosts.add(failedUrl);
+                        LOG.debug(String.format("Moving host %s to the end of the pool. New primary host is %s",
+                            failedUrl, hosts.get(0)));
+                    }
+                }
+            }
+        } catch (Exception buildEx) {
+            LOG.error(
+                String.format("Failed to build request with string [%s]. Message not sent to any topic. Reason: %s",
+                    data, buildEx.getMessage()),
+                buildEx);
+        }
+        return sent == topics.size();
+    }
+
+    @Override
+    public void useHttps(boolean yes) {
+        useHttps = yes;
+    }
+
+    /**
+     * Format the body for the application/cambria content type with no partitioning.
+     *
+     * @param msg
+     *            The message body to format
+     * @return A string in the application/cambria content type
+     */
+    private String bodyLine(String partition, String msg) {
+        String p = (partition == null) ? "" : partition;
+        String m = (msg == null) ? "" : msg;
+        return String.format("%d.%d.%s%s", p.length(), m.length(), p, m);
+    }
+
+       @Override
+       public void close() {
+               // Nothing to do                
+       }
+}