Add seed code.

First version based on PRH micro service.

Change-Id: Iea1673a8a1961006b1ea98ef245e213e3652eb82
Issue-ID: DCAEGEN2-638
Signed-off-by: elinuxhenrik <henrik.b.andersson@est.tech>

6 files changed, 470 insertions, 0 deletions

diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapConsumerConfiguration.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapConsumerConfiguration.java
new file mode 100644
index 00000000..57b11127
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapConsumerConfiguration.java
@@ -0,0 +1,68 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.config;
+
+import org.immutables.gson.Gson;
+import org.immutables.value.Value;
+import org.onap.dcaegen2.collectors.datafile.config.ImmutableDmaapConsumerConfiguration;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 3/23/18
+ */
+@Component
+@Value.Immutable(prehash = true)
+@Value.Style(builder = "new")
+@Gson.TypeAdapters
+public abstract class DmaapConsumerConfiguration implements DmaapCustomConfig {
+
+    private static final long serialVersionUID = 1L;
+
+    @Value.Parameter
+    public abstract String consumerId();
+
+    @Value.Parameter
+    public abstract String consumerGroup();
+
+    @Value.Parameter
+    public abstract Integer timeoutMs();
+
+    @Value.Parameter
+    public abstract Integer messageLimit();
+
+
+    public interface Builder extends
+        DmaapCustomConfig.Builder<DmaapConsumerConfiguration, DmaapConsumerConfiguration.Builder> {
+
+        Builder consumerId(String consumerId);
+
+        Builder consumerGroup(String consumerGroup);
+
+        Builder timeoutMs(Integer timeoutMs);
+
+        Builder messageLimit(Integer messageLimit);
+    }
+
+    public static DmaapConsumerConfiguration.Builder builder() {
+        return ImmutableDmaapConsumerConfiguration.builder();
+    }
+
+}
\ No newline at end of file
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapCustomConfig.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapCustomConfig.java
new file mode 100644
index 00000000..31bbfc0e
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapCustomConfig.java
@@ -0,0 +1,72 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.config;
+
+import java.io.Serializable;
+
+import org.immutables.value.Value;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 3/28/18
+ */
+public interface DmaapCustomConfig extends Serializable {
+
+    @Value.Parameter
+    String dmaapHostName();
+
+    @Value.Parameter
+    Integer dmaapPortNumber();
+
+    @Value.Parameter
+    String dmaapTopicName();
+
+    @Value.Parameter
+    String dmaapProtocol();
+
+    @Value.Parameter
+    String dmaapUserName();
+
+    @Value.Parameter
+    String dmaapUserPassword();
+
+    @Value.Parameter
+    String dmaapContentType();
+
+
+    interface Builder<T extends DmaapCustomConfig, B extends Builder<T, B>> {
+
+        B dmaapHostName(String dmaapHostName);
+
+        B dmaapPortNumber(Integer dmaapPortNumber);
+
+        B dmaapTopicName(String dmaapTopicName);
+
+        B dmaapProtocol(String dmaapProtocol);
+
+        B dmaapUserName(String dmaapUserName);
+
+        B dmaapUserPassword(String dmaapUserPassword);
+
+        B dmaapContentType(String dmaapContentType);
+
+        T build();
+    }
+}
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapPublisherConfiguration.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapPublisherConfiguration.java
new file mode 100644
index 00000000..cd520569
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/config/DmaapPublisherConfiguration.java
@@ -0,0 +1,47 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.config;
+
+import org.immutables.gson.Gson;
+import org.immutables.value.Value;
+import org.onap.dcaegen2.collectors.datafile.config.DmaapCustomConfig;
+import org.onap.dcaegen2.collectors.datafile.config.DmaapPublisherConfiguration;
+import org.onap.dcaegen2.collectors.datafile.config.ImmutableDmaapPublisherConfiguration;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 3/23/18
+ */
+@Value.Immutable(prehash = true)
+@Value.Style(builder = "new")
+@Gson.TypeAdapters
+public abstract class DmaapPublisherConfiguration implements DmaapCustomConfig {
+
+    private static final long serialVersionUID = 1L;
+
+    interface Builder extends
+        DmaapCustomConfig.Builder<DmaapPublisherConfiguration, DmaapPublisherConfiguration.Builder> {
+
+    }
+
+    public static DmaapPublisherConfiguration.Builder builder() {
+        return ImmutableDmaapPublisherConfiguration.builder();
+    }
+}
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/DMaaPReactiveWebClient.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/DMaaPReactiveWebClient.java
new file mode 100644
index 00000000..b4cbfeea
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/DMaaPReactiveWebClient.java
@@ -0,0 +1,88 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.service;
+
+import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication;
+
+import org.onap.dcaegen2.collectors.datafile.config.DmaapCustomConfig;
+import org.onap.dcaegen2.collectors.datafile.service.DMaaPReactiveWebClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
+ */
+public class DMaaPReactiveWebClient {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    private String dmaaPContentType;
+    private String dmaaPUserName;
+    private String dmaaPUserPassword;
+
+    /**
+     * Creating DMaaPReactiveWebClient passing to them basic DMaaPConfig.
+     *
+     * @param dmaapCustomConfig - configuration object
+     * @return DMaaPReactiveWebClient
+     */
+    public DMaaPReactiveWebClient fromConfiguration(DmaapCustomConfig dmaapCustomConfig) {
+        this.dmaaPUserName = dmaapCustomConfig.dmaapUserName();
+        this.dmaaPUserPassword = dmaapCustomConfig.dmaapUserPassword();
+        this.dmaaPContentType = dmaapCustomConfig.dmaapContentType();
+        return this;
+    }
+
+    /**
+     * Construct Reactive WebClient with appropriate settings.
+     *
+     * @return WebClient
+     */
+    public WebClient build() {
+        return WebClient.builder()
+            .defaultHeader(HttpHeaders.CONTENT_TYPE, dmaaPContentType)
+            .filter(basicAuthentication(dmaaPUserName, dmaaPUserPassword))
+            .filter(logRequest())
+            .filter(logResponse())
+            .build();
+    }
+
+    private ExchangeFilterFunction logResponse() {
+        return ExchangeFilterFunction.ofResponseProcessor(clientResponse -> {
+            logger.info("Response Status {}", clientResponse.statusCode());
+            return Mono.just(clientResponse);
+        });
+    }
+
+    private ExchangeFilterFunction logRequest() {
+        return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
+            logger.info("Request: {} {}", clientRequest.method(), clientRequest.url());
+            clientRequest.headers()
+                .forEach((name, values) -> values.forEach(value -> logger.info("{}={}", name, value)));
+            return Mono.just(clientRequest);
+        });
+    }
+
+}
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/consumer/DMaaPConsumerReactiveHttpClient.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/consumer/DMaaPConsumerReactiveHttpClient.java
new file mode 100644
index 00000000..1fcebeac
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/consumer/DMaaPConsumerReactiveHttpClient.java
@@ -0,0 +1,99 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.service.consumer;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import org.apache.http.client.utils.URIBuilder;
+import org.onap.dcaegen2.collectors.datafile.config.DmaapConsumerConfiguration;
+import org.onap.dcaegen2.collectors.datafile.service.consumer.DMaaPConsumerReactiveHttpClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 6/26/18
+ */
+public class DMaaPConsumerReactiveHttpClient {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    private WebClient webClient;
+    private final String dmaapHostName;
+    private final String dmaapProtocol;
+    private final Integer dmaapPortNumber;
+    private final String dmaapTopicName;
+    private final String consumerGroup;
+    private final String consumerId;
+
+    /**
+     * Constructor of DMaaPConsumerReactiveHttpClient.
+     *
+     * @param consumerConfiguration - DMaaP consumer configuration object
+     */
+    public DMaaPConsumerReactiveHttpClient(DmaapConsumerConfiguration consumerConfiguration) {
+        this.dmaapHostName = consumerConfiguration.dmaapHostName();
+        this.dmaapProtocol = consumerConfiguration.dmaapProtocol();
+        this.dmaapPortNumber = consumerConfiguration.dmaapPortNumber();
+        this.dmaapTopicName = consumerConfiguration.dmaapTopicName();
+        this.consumerGroup = consumerConfiguration.consumerGroup();
+        this.consumerId = consumerConfiguration.consumerId();
+    }
+
+    /**
+     * Function for calling DMaaP HTTP consumer - consuming messages from Kafka/DMaaP from topic.
+     *
+     * @return reactive response from DMaaP in string format
+     */
+    public Mono<String> getDMaaPConsumerResponse() {
+        try {
+            return webClient
+                .get()
+                .uri(getUri())
+                .retrieve()
+                .onStatus(HttpStatus::is4xxClientError, clientResponse ->
+                    Mono.error(new Exception("HTTP 400"))
+                )
+                .onStatus(HttpStatus::is5xxServerError, clientResponse ->
+                    Mono.error(new Exception("HTTP 500")))
+                .bodyToMono(String.class);
+        } catch (URISyntaxException e) {
+            logger.warn("Exception while evaluating URI ");
+            return Mono.error(e);
+        }
+    }
+
+    private String createRequestPath() {
+        return dmaapTopicName + "/" + consumerGroup + "/" + consumerId;
+    }
+
+    public DMaaPConsumerReactiveHttpClient createDMaaPWebClient(WebClient webClient) {
+        this.webClient = webClient;
+        return this;
+    }
+
+    URI getUri() throws URISyntaxException {
+        return new URIBuilder().setScheme(dmaapProtocol).setHost(dmaapHostName).setPort(dmaapPortNumber)
+            .setPath(createRequestPath()).build();
+    }
+}
diff --git a/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/producer/DMaaPProducerReactiveHttpClient.java b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/producer/DMaaPProducerReactiveHttpClient.java
new file mode 100644
index 00000000..c6889df4
--- /dev/null
+++ b/datafile-dmaap-client/src/main/java/org/onap/dcaegen2/collectors/datafile/service/producer/DMaaPProducerReactiveHttpClient.java
@@ -0,0 +1,96 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Datafile Collector Service
+ * ================================================================================
+ * 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.collectors.datafile.service.producer;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import org.apache.http.client.utils.URIBuilder;
+import org.onap.dcaegen2.collectors.datafile.config.DmaapPublisherConfiguration;
+import org.onap.dcaegen2.collectors.datafile.model.ConsumerDmaapModel;
+import org.onap.dcaegen2.collectors.datafile.service.producer.DMaaPProducerReactiveHttpClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.reactive.function.BodyInserters;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
+ */
+public class DMaaPProducerReactiveHttpClient {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    private WebClient webClient;
+    private final String dmaapHostName;
+    private final Integer dmaapPortNumber;
+    private final String dmaapProtocol;
+    private final String dmaapTopicName;
+
+    /**
+     * Constructor DMaaPProducerReactiveHttpClient.
+     *
+     * @param dmaapPublisherConfiguration - DMaaP producer configuration object
+     */
+    public DMaaPProducerReactiveHttpClient(DmaapPublisherConfiguration dmaapPublisherConfiguration) {
+        this.dmaapHostName = dmaapPublisherConfiguration.dmaapHostName();
+        this.dmaapProtocol = dmaapPublisherConfiguration.dmaapProtocol();
+        this.dmaapPortNumber = dmaapPublisherConfiguration.dmaapPortNumber();
+        this.dmaapTopicName = dmaapPublisherConfiguration.dmaapTopicName();
+    }
+
+    /**
+     * Function for calling DMaaP HTTP producer - post request to DMaaP.
+     *
+     * @param consumerDmaapModelMono - object which will be sent to DMaaP
+     * @return status code of operation
+     */
+    public Mono<String> getDMaaPProducerResponse(Mono<ConsumerDmaapModel> consumerDmaapModelMono) {
+        try {
+            return webClient
+                .post()
+                .uri(getUri())
+                .body(BodyInserters.fromObject(consumerDmaapModelMono))
+                .retrieve()
+                .onStatus(HttpStatus::is4xxClientError, clientResponse ->
+                    Mono.error(new Exception("HTTP 400"))
+                )
+                .onStatus(HttpStatus::is5xxServerError, clientResponse ->
+                    Mono.error(new Exception("HTTP 500")))
+                .bodyToMono(String.class);
+        } catch (URISyntaxException e) {
+            logger.warn("Exception while evaluating URI");
+            return Mono.error(e);
+        }
+    }
+
+    public DMaaPProducerReactiveHttpClient createDMaaPWebClient(WebClient webClient) {
+        this.webClient = webClient;
+        return this;
+    }
+
+    URI getUri() throws URISyntaxException {
+        return new URIBuilder().setScheme(dmaapProtocol).setHost(dmaapHostName).setPort(dmaapPortNumber)
+            .setPath(dmaapTopicName).build();
+    }
+
+}