1 files changed, 149 insertions, 0 deletions
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/prh/service/producer/ExtendedDmaapProducerHttpClientImpl.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/prh/service/producer/ExtendedDmaapProducerHttpClientImpl.java
new file mode 100644
index 00000000..156c1891
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/prh/service/producer/ExtendedDmaapProducerHttpClientImpl.java
@@ -0,0 +1,149 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA 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.onap.dcaegen2.services.prh.service.producer;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.client.ResponseHandler;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.client.methods.HttpRequestBase;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.util.EntityUtils;
+import org.onap.dcaegen2.services.prh.config.DmaapPublisherConfiguration;
+import org.onap.dcaegen2.services.prh.model.CommonFunctions;
+import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModel;
+import org.onap.dcaegen2.services.prh.service.DmaapHttpClientImpl;
+import org.onap.dcaegen2.services.prh.service.HttpUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Optional;
+
+public class ExtendedDmaapProducerHttpClientImpl {
+
+    private static Logger logger = LoggerFactory.getLogger(ExtendedDmaapProducerHttpClientImpl.class);
+
+    private final CloseableHttpClient closeableHttpClient;
+    private final String dmaapHostName;
+    private final String dmaapProtocol;
+    private final Integer dmaapPortNumber;
+    private final String dmaapTopicName;
+    private final String dmaapContentType;
+
+
+    public ExtendedDmaapProducerHttpClientImpl(DmaapPublisherConfiguration configuration) {
+        this.closeableHttpClient = new DmaapHttpClientImpl(configuration).getHttpClient();
+        this.dmaapHostName = configuration.dmaapHostName();
+        this.dmaapProtocol = configuration.dmaapProtocol();
+        this.dmaapPortNumber = configuration.dmaapPortNumber();
+        this.dmaapTopicName = configuration.dmaapTopicName();
+        this.dmaapContentType = configuration.dmaapContentType();
+    }
+
+    public Optional<String> getHttpProducerResponse(ConsumerDmaapModel consumerDmaapModel) {
+        Optional<String> extendedDetails = Optional.empty();
+        Optional<HttpRequestBase> request = createRequest(consumerDmaapModel);
+        try {
+            extendedDetails = closeableHttpClient.execute(request.get(), dmaapProducerResponseHandler());
+        } catch (IOException | NullPointerException e) {
+            logger.warn("Exception while executing HTTP request: ", e);
+        }
+        return extendedDetails;
+    }
+    
+    private Optional<StringEntity> createStringEntity(Optional<String> jsonBody) {
+        return Optional.of(parseJson(jsonBody).get());
+    }
+
+    private Optional<StringEntity> parseJson(Optional<String> jsonBody) {
+        Optional<StringEntity> stringEntity = Optional.empty();
+        try {
+            stringEntity = Optional.of(new StringEntity(jsonBody.get()));
+        } catch (UnsupportedEncodingException e) {
+            logger.warn("Exception while parsing JSON: ", e);
+        }
+        return stringEntity;
+    }
+
+    private Optional<HttpRequestBase> createRequest(ConsumerDmaapModel consumerDmaapModel) {
+        Optional<HttpRequestBase> request = Optional.empty();
+        final URI extendedURI = createDmaapPublisherExtendedURI();
+
+        if ("application/json".equals(dmaapContentType)) {
+            request = Optional.ofNullable(createRequest(extendedURI, consumerDmaapModel));
+            request.get().addHeader("Content-type", dmaapContentType);
+        }
+
+        return request;
+    }
+
+    private URI createDmaapPublisherExtendedURI() {
+        URI extendedURI = null;
+        final URIBuilder uriBuilder = new URIBuilder()
+            .setScheme(dmaapProtocol)
+            .setHost(dmaapHostName)
+            .setPort(dmaapPortNumber)
+            .setPath(dmaapTopicName);
+        try {
+            extendedURI = uriBuilder.build();
+            logger.trace("Building extended URI: {}", extendedURI);
+        } catch (URISyntaxException e) {
+            logger.warn("Exception while building extended URI: ", e);
+        }
+        return extendedURI;
+    }
+
+    private HttpRequestBase createRequest(URI extendedURI, ConsumerDmaapModel consumerDmaapModel) {
+        if (extendedURI != null) {
+            return createHttpPost(extendedURI, Optional.ofNullable(CommonFunctions.createJsonBody(consumerDmaapModel)));
+        } else {
+            return null;
+        }
+    }
+
+    private HttpPost createHttpPost(URI extendedURI, Optional<String> jsonBody) {
+        HttpPost post = new HttpPost(extendedURI);
+        Optional<StringEntity> stringEntity = createStringEntity(jsonBody);
+        post.setEntity(stringEntity.get());
+        return post;
+    }
+
+    private ResponseHandler<Optional<String>> dmaapProducerResponseHandler() {
+        return httpResponse -> {
+            final int responseCode = httpResponse.getStatusLine().getStatusCode();
+            final HttpEntity responseEntity = httpResponse.getEntity();
+
+            if (HttpUtils.isSuccessfulResponseCode(responseCode)) {
+                logger.trace("HTTP response successful.");
+                return Optional.of("" + responseCode);
+            } else {
+                String response = responseEntity != null ? EntityUtils.toString(responseEntity) : "";
+                logger.warn("HTTP response not successful : {}", response);
+                return Optional.of("" + responseCode);
+            }
+        };
+    }
+}