Defined structure of DMaaP Consumer

*Added Response Type

Change-Id: Id53217db932e345dfe16a7e7035c160f70287ef0
Issue-ID: DCAEGEN2-450
Signed-off-by: wasala <przemyslaw.wasala@nokia.com>

7 files changed, 268 insertions, 1 deletions

diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/config/DmaapPublisherConfiguration.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/config/DmaapPublisherConfiguration.java
index 50a79dd6..525e1326 100644
--- a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/config/DmaapPublisherConfiguration.java
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/config/DmaapPublisherConfiguration.java
@@ -1,4 +1,4 @@
-/*-
+/*
  * ============LICENSE_START=======================================================
  * PNF-REGISTRATION-HANDLER
  * ================================================================================
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumer.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumer.java
new file mode 100644
index 00000000..5e9705ae
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumer.java
@@ -0,0 +1,33 @@
+/*
+ * ============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.consumer;
+
+import java.util.Date;
+import org.onap.dcaegen2.services.response.DMaaPConsumerResponse;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public interface DMaaPConsumer extends AutoCloseable {
+
+    DMaaPConsumerResponse fetchMessages();
+
+    Date getSubscriberCreationTime();
+}
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerFactory.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerFactory.java
new file mode 100644
index 00000000..4864d679
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerFactory.java
@@ -0,0 +1,30 @@
+/*
+ * ============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.consumer;
+
+import org.onap.dcaegen2.services.config.DmaapConsumerConfiguration;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public interface DMaaPConsumerFactory {
+
+    DMaaPConsumer create(DmaapConsumerConfiguration dmaapConsumerConfiguration);
+}
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerImpl.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerImpl.java
new file mode 100644
index 00000000..e9511ce3
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/consumer/DMaaPConsumerImpl.java
@@ -0,0 +1,68 @@
+/*
+ * ============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.consumer;
+
+import java.net.URI;
+import java.time.Instant;
+import java.time.LocalTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.onap.dcaegen2.services.config.DmaapConsumerConfiguration;
+import org.onap.dcaegen2.services.response.DMaaPConsumerResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public class DMaaPConsumerImpl implements DMaaPConsumer {
+
+    private static final Logger logger = LoggerFactory.getLogger(DMaaPConsumerImpl.class);
+    private static final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("HH:mm:ss");
+
+    private final DmaapConsumerConfiguration dmaapConsumerConfiguration;
+    private final CloseableHttpClient closeableHttpClient;
+    private final URI subscriberUri;
+    private final Date subscriberCreationTime;
+
+    public DMaaPConsumerImpl(DmaapConsumerConfiguration dmaapConsumerConfiguration,
+        CloseableHttpClient closeableHttpClient, URI subscriberUri) {
+        this.dmaapConsumerConfiguration = dmaapConsumerConfiguration;
+        this.closeableHttpClient = closeableHttpClient;
+        this.subscriberUri = subscriberUri;
+        this.subscriberCreationTime = Date.from(Instant.from(LocalTime.now()));
+    }
+
+    @Override
+    public DMaaPConsumerResponse fetchMessages() {
+        return null;
+    }
+
+    @Override
+    public Date getSubscriberCreationTime() {
+        return null;
+    }
+
+    @Override
+    public void close() throws Exception {
+
+    }
+}
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponse.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponse.java
new file mode 100644
index 00000000..a9e5c526
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponse.java
@@ -0,0 +1,32 @@
+/*
+ * ============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.response;
+
+import java.util.List;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public interface DMaaPConsumerResponse extends DMaaPResponse {
+
+
+    List<String> getFetchedMessages();
+
+}
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponseImpl.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponseImpl.java
new file mode 100644
index 00000000..f3565edf
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPConsumerResponseImpl.java
@@ -0,0 +1,72 @@
+/*
+ * ============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.response;
+
+import static java.util.Collections.unmodifiableList;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+import java.util.StringJoiner;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public class DMaaPConsumerResponseImpl implements DMaaPConsumerResponse {
+
+
+    private final Integer responseCode;
+    private final String responseMessage;
+    private final List<String> fetchedMessage;
+
+    public DMaaPConsumerResponseImpl(@NonNull Integer responseCode, @NonNull String responseMessage,
+        @Nullable List<String> fetchedMessage) {
+        this.responseCode = responseCode;
+        this.responseMessage = responseMessage;
+        this.fetchedMessage = Optional.ofNullable(fetchedMessage).orElse(Collections.emptyList());
+    }
+
+
+    @Override
+    public String getResponseMessage() {
+        return responseMessage;
+    }
+
+    @Override
+    public Integer getResponseCode() {
+        return responseCode;
+    }
+
+    @Override
+    public List<String> getFetchedMessages() {
+        return unmodifiableList(fetchedMessage);
+    }
+
+    @Override
+    public String toString() {
+        return new StringJoiner(", ", this.getClass().getSimpleName() + "[", "]")
+            .add("responseCode=" + responseCode)
+            .add("responseMessage=" + responseMessage)
+            .add("fetchedMessage=" + fetchedMessage)
+            .toString();
+    }
+}
diff --git a/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPResponse.java b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPResponse.java
new file mode 100644
index 00000000..6528eec8
--- /dev/null
+++ b/prh-dmaap-client/src/main/java/org/onap/dcaegen2/services/response/DMaaPResponse.java
@@ -0,0 +1,32 @@
+/*
+ * ============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.response;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 4/17/18
+ */
+public interface DMaaPResponse {
+
+    Integer getResponseCode();
+
+
+    String getResponseMessage();
+}