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-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java141
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpHeaders.java34
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpMethod.java48
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpRequest.java59
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpResponse.java77
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/NettyHttpResponse.java73
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RequestBody.java74
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClient.java111
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientFactory.java59
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/exceptions/HttpException.java45
-rw-r--r--rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/test/DummyHttpServer.java99
11 files changed, 820 insertions, 0 deletions
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java
new file mode 100644
index 00000000..77f3811e
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java
@@ -0,0 +1,141 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import com.google.gson.Gson;
+import io.netty.handler.ssl.SslContext;
+import io.vavr.collection.HashMap;
+import java.util.Collections;
+import java.util.Map;
+import org.onap.dcaegen2.services.sdk.rest.services.model.ClientModel;
+import org.onap.dcaegen2.services.sdk.rest.services.model.JsonBodyBuilder;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import reactor.core.publisher.Mono;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 11/15/18
+ * @deprecated use {@link RxHttpClient} instead
+ */
+@Deprecated
+public class CloudHttpClient {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(CloudHttpClient.class);
+ private final Gson gson = new Gson();
+ private final RxHttpClient httpClient;
+
+ CloudHttpClient(RxHttpClient httpClient) {
+ this.httpClient = httpClient;
+ }
+
+ public CloudHttpClient() {
+ this(RxHttpClientFactory.create());
+ }
+
+ public CloudHttpClient(SslContext sslContext) {
+ this(RxHttpClientFactory.create(sslContext));
+ }
+
+ public <T> Mono<T> get(String url, Class<T> bodyClass) {
+ return get(url, RequestDiagnosticContext.create(), bodyClass);
+ }
+
+ public <T> Mono<T> get(String url, RequestDiagnosticContext context, Class<T> bodyClass) {
+ return get(url, context, Collections.emptyMap(), bodyClass);
+ }
+
+ public Mono<HttpResponse> get(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders) {
+ return httpClient.call(
+ ImmutableHttpRequest.builder()
+ .method(HttpMethod.GET)
+ .url(url)
+ .customHeaders(HashMap.ofAll(customHeaders))
+ .diagnosticContext(context)
+ .build());
+ }
+
+ public <T> Mono<T> get(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders,
+ Class<T> bodyClass) {
+ return get(url, context, customHeaders)
+ .doOnNext(HttpResponse::throwIfUnsuccessful)
+ .map(HttpResponse::bodyAsString)
+ .map(body -> gson.fromJson(body, bodyClass));
+ }
+
+
+ public Mono<HttpResponse> post(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders,
+ JsonBodyBuilder jsonBodyBuilder,
+ ClientModel clientModel) {
+ return callForRawResponse(url, context, customHeaders, jsonBodyBuilder, clientModel, HttpMethod.POST);
+ }
+
+ public Mono<HttpResponse> patch(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders,
+ JsonBodyBuilder jsonBodyBuilder,
+ ClientModel clientModel) {
+ return callForRawResponse(url, context, customHeaders, jsonBodyBuilder, clientModel, HttpMethod.PATCH);
+ }
+
+ public Mono<HttpResponse> put(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders,
+ JsonBodyBuilder jsonBodyBuilder,
+ ClientModel clientModel) {
+ return callForRawResponse(url, context, customHeaders, jsonBodyBuilder, clientModel, HttpMethod.PUT);
+ }
+
+ private Mono<HttpResponse> callForRawResponse(
+ String url,
+ RequestDiagnosticContext context,
+ Map<String, String> customHeaders,
+ JsonBodyBuilder jsonBodyBuilder,
+ ClientModel clientModel,
+ HttpMethod method) {
+
+ String jsonBody = jsonBodyBuilder.createJsonBody(clientModel);
+ LOGGER.debug("CloudHttpClient JSon body:: {}", jsonBody);
+ LOGGER.debug("CloudHttpClient url: {}", url);
+ LOGGER.debug("CloudHttpClient customHeaders: {}", customHeaders);
+
+ return httpClient.call(
+ ImmutableHttpRequest.builder()
+ .url(url)
+ .customHeaders(HashMap.ofAll(customHeaders))
+ .diagnosticContext(context)
+ .body(RequestBody.fromString(jsonBody))
+ .method(method)
+ .build());
+ }
+}
+
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpHeaders.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpHeaders.java
new file mode 100644
index 00000000..4ef43a59
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpHeaders.java
@@ -0,0 +1,34 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since April 2019
+ */
+public final class HttpHeaders {
+
+ private HttpHeaders() {
+ }
+
+ public static final String CONTENT_TYPE = "Content-Type";
+ public static final String CONTENT_LENGTH = "Content-Length";
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpMethod.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpMethod.java
new file mode 100644
index 00000000..78e6789e
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpMethod.java
@@ -0,0 +1,48 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+public enum HttpMethod {
+
+ CONNECT(io.netty.handler.codec.http.HttpMethod.CONNECT),
+ DELETE(io.netty.handler.codec.http.HttpMethod.DELETE),
+ GET(io.netty.handler.codec.http.HttpMethod.GET),
+ HEAD(io.netty.handler.codec.http.HttpMethod.HEAD),
+ OPTIONS(io.netty.handler.codec.http.HttpMethod.OPTIONS),
+ POST(io.netty.handler.codec.http.HttpMethod.POST),
+ PATCH(io.netty.handler.codec.http.HttpMethod.PATCH),
+ PUT(io.netty.handler.codec.http.HttpMethod.PUT),
+ TRACE(io.netty.handler.codec.http.HttpMethod.TRACE);
+
+ private final io.netty.handler.codec.http.HttpMethod nettyMethod;
+
+ HttpMethod(io.netty.handler.codec.http.HttpMethod nettyMethod) {
+ this.nettyMethod = nettyMethod;
+ }
+
+ io.netty.handler.codec.http.HttpMethod asNetty() {
+ return nettyMethod;
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpRequest.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpRequest.java
new file mode 100644
index 00000000..33060c9f
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpRequest.java
@@ -0,0 +1,59 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import io.vavr.collection.HashMap;
+import io.vavr.collection.Map;
+import org.immutables.value.Value;
+import org.jetbrains.annotations.Nullable;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+@Value.Immutable
+public interface HttpRequest {
+
+ String url();
+
+ HttpMethod method();
+
+ @Nullable RequestBody body();
+
+ @Value.Default
+ default RequestDiagnosticContext diagnosticContext() {
+ return RequestDiagnosticContext.create();
+ }
+
+ @Value.Default
+ default Map<String, String> customHeaders() {
+ return HashMap.empty();
+ }
+
+ @Value.Derived
+ default Map<String, String> headers() {
+ final RequestDiagnosticContext ctx = diagnosticContext();
+ return ctx == null
+ ? customHeaders()
+ : customHeaders().merge(ctx.remoteCallHttpHeaders());
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpResponse.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpResponse.java
new file mode 100644
index 00000000..ce100478
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/HttpResponse.java
@@ -0,0 +1,77 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import com.google.gson.Gson;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.exceptions.HttpException;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+@Value.Immutable
+public interface HttpResponse {
+
+ String url();
+
+ int statusCode();
+
+ byte[] rawBody();
+
+ @Value.Default
+ default String statusReason() {
+ return "";
+ }
+
+ @Value.Derived
+ default boolean successful() {
+ return statusCode() >= 200 && statusCode() < 300;
+ }
+
+ @Value.Derived
+ default String bodyAsString() {
+ return bodyAsString(StandardCharsets.UTF_8);
+ }
+
+ @Value.Derived
+ default String bodyAsString(Charset charset) {
+ return new String(rawBody(), charset);
+ }
+
+ @Value.Derived
+ default <T> T bodyAsJson(Class<T> clazz) {
+ return bodyAsJson(StandardCharsets.UTF_8, new Gson(), clazz);
+ }
+
+ @Value.Derived
+ default <T> T bodyAsJson(Charset charset, Gson gson, Class<T> clazz) {
+ return gson.fromJson(bodyAsString(charset), clazz);
+ }
+
+ default void throwIfUnsuccessful() {
+ if (!successful()) {
+ throw new HttpException(url(), statusCode(), statusReason());
+ }
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/NettyHttpResponse.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/NettyHttpResponse.java
new file mode 100644
index 00000000..3dcd7098
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/NettyHttpResponse.java
@@ -0,0 +1,73 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.netty.handler.codec.http.HttpStatusClass;
+import java.nio.charset.Charset;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+class NettyHttpResponse implements HttpResponse {
+
+ private final String url;
+ private final HttpResponseStatus status;
+ private final byte[] body;
+
+ NettyHttpResponse(String url, HttpResponseStatus status, byte[] body) {
+ this.url = url;
+ this.status = status;
+ this.body = body;
+ }
+
+ @Override
+ public String url() {
+ return url;
+ }
+
+ @Override
+ public boolean successful() {
+ return status.codeClass() == HttpStatusClass.SUCCESS;
+ }
+
+ @Override
+ public int statusCode() {
+ return status.code();
+ }
+
+ @Override
+ public String statusReason() {
+ return status.reasonPhrase();
+ }
+
+ @Override
+ public byte[] rawBody() {
+ return new byte[0];
+ }
+
+ @Override
+ public String bodyAsString(Charset charset) {
+ return new String(body, charset);
+ }
+
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RequestBody.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RequestBody.java
new file mode 100644
index 00000000..d427ee5e
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RequestBody.java
@@ -0,0 +1,74 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import com.google.gson.JsonElement;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufAllocator;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import org.immutables.value.Value;
+import org.jetbrains.annotations.Nullable;
+import org.reactivestreams.Publisher;
+import reactor.core.publisher.Mono;
+import reactor.netty.ByteBufFlux;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+@Value.Immutable
+public interface RequestBody {
+
+ Publisher<ByteBuf> contents();
+
+ @Nullable Integer length();
+
+ static RequestBody chunkedFromString(Publisher<String> contents) {
+ return chunkedFromString(contents, StandardCharsets.UTF_8);
+ }
+
+ static RequestBody chunkedFromString(Publisher<String> contents, Charset charset) {
+ return ImmutableRequestBody.builder()
+ .length(null)
+ .contents(ByteBufFlux.fromString(contents, charset, ByteBufAllocator.DEFAULT))
+ .build();
+ }
+
+ static RequestBody fromString(String contents) {
+ return fromString(contents, StandardCharsets.UTF_8);
+ }
+
+ static RequestBody fromString(String contents, Charset charset) {
+ ByteBuf encodedContents = ByteBufAllocator.DEFAULT.buffer();
+ encodedContents.writeCharSequence(contents, charset);
+
+ return ImmutableRequestBody.builder()
+ .length(encodedContents.readableBytes())
+ .contents(Mono.just(encodedContents.retain()))
+ .build();
+ }
+
+ static RequestBody fromJson(JsonElement contents) {
+ return fromString(contents.toString());
+ }
+
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClient.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClient.java
new file mode 100644
index 00000000..234a3800
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClient.java
@@ -0,0 +1,111 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import io.vavr.collection.Stream;
+import java.util.stream.Collectors;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import reactor.core.publisher.Mono;
+import reactor.netty.http.client.HttpClient;
+import reactor.netty.http.client.HttpClient.ResponseReceiver;
+import reactor.netty.http.client.HttpClientRequest;
+import reactor.netty.http.client.HttpClientResponse;
+
+/**
+ * @since 1.1.4
+ */
+public class RxHttpClient {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(RxHttpClient.class);
+ private final HttpClient httpClient;
+
+ RxHttpClient(HttpClient httpClient) {
+ this.httpClient = httpClient;
+ }
+
+ public Mono<HttpResponse> call(HttpRequest request) {
+ return prepareRequest(request)
+ .responseSingle((resp, content) ->
+ content.asByteArray()
+ .defaultIfEmpty(new byte[0])
+ .map(bytes -> new NettyHttpResponse(request.url(), resp.status(), bytes)));
+ }
+
+ ResponseReceiver<?> prepareRequest(HttpRequest request) {
+ final HttpClient theClient = httpClient
+ .doOnRequest((req, conn) -> logRequest(request.diagnosticContext(), req))
+ .doOnResponse((rsp, conn) -> logResponse(request.diagnosticContext(), rsp))
+ .headers(hdrs -> request.headers().forEach(hdr -> hdrs.set(hdr._1, hdr._2)));
+
+ return prepareBody(request, theClient);
+ }
+
+ private ResponseReceiver<?> prepareBody(HttpRequest request, HttpClient theClient) {
+ if (request.body() == null) {
+ return prepareBodyWithoutContents(request, theClient);
+ } else {
+ return request.body().length() == null
+ ? prepareBodyChunked(request, theClient)
+ : prepareBodyUnchunked(request, theClient);
+ }
+ }
+
+ private ResponseReceiver<?> prepareBodyChunked(HttpRequest request, HttpClient theClient) {
+ return theClient
+ .chunkedTransfer(true)
+ .request(request.method().asNetty())
+ .send(request.body().contents())
+ .uri(request.url());
+ }
+
+ private ResponseReceiver<?> prepareBodyUnchunked(HttpRequest request, HttpClient theClient) {
+ return theClient
+ .headers(hdrs -> hdrs.set(HttpHeaders.CONTENT_LENGTH, request.body().length().toString()))
+ .request(request.method().asNetty())
+ .send(request.body().contents())
+ .uri(request.url());
+ }
+
+ private ResponseReceiver<?> prepareBodyWithoutContents(HttpRequest request, HttpClient theClient) {
+ return theClient
+ .request(request.method().asNetty())
+ .uri(request.url());
+ }
+
+ private void logRequest(RequestDiagnosticContext context, HttpClientRequest httpClientRequest) {
+ context.withSlf4jMdc(LOGGER.isDebugEnabled(), () -> {
+ LOGGER.debug("Request: {} {} {}", httpClientRequest.method(), httpClientRequest.uri(),
+ httpClientRequest.requestHeaders());
+ if (LOGGER.isTraceEnabled()) {
+ final String headers = Stream.ofAll(httpClientRequest.requestHeaders())
+ .map(entry -> entry.getKey() + "=" + entry.getValue())
+ .collect(Collectors.joining("\n"));
+ LOGGER.trace(headers);
+ }
+ });
+ }
+
+ private void logResponse(RequestDiagnosticContext context, HttpClientResponse httpClientResponse) {
+ context.withSlf4jMdc(LOGGER.isDebugEnabled(),
+ () -> LOGGER.debug("Response status: {}", httpClientResponse.status()));
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientFactory.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientFactory.java
new file mode 100644
index 00000000..cfa98f22
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/RxHttpClientFactory.java
@@ -0,0 +1,59 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http;
+
+import io.netty.handler.ssl.SslContext;
+import org.jetbrains.annotations.NotNull;
+import org.onap.dcaegen2.services.sdk.security.ssl.SecurityKeys;
+import org.onap.dcaegen2.services.sdk.security.ssl.SslFactory;
+import reactor.netty.http.client.HttpClient;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since May 2019
+ */
+public final class RxHttpClientFactory {
+
+ private static final SslFactory SSL_FACTORY = new SslFactory();
+
+ private RxHttpClientFactory() {
+ }
+
+ public static RxHttpClient create() {
+ return new RxHttpClient(HttpClient.create());
+ }
+
+
+ public static RxHttpClient create(SecurityKeys securityKeys) {
+ final SslContext context = SSL_FACTORY.createSecureClientContext(securityKeys);
+ return create(context);
+ }
+
+ public static RxHttpClient createInsecure() {
+ final SslContext context = SSL_FACTORY.createInsecureClientContext();
+ return create(context);
+ }
+
+ // TODO: make it private after removing CloudHttpClient
+ static RxHttpClient create(@NotNull SslContext sslContext) {
+ return new RxHttpClient(HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)));
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/exceptions/HttpException.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/exceptions/HttpException.java
new file mode 100644
index 00000000..9631f4c5
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/exceptions/HttpException.java
@@ -0,0 +1,45 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http.exceptions;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+public class HttpException extends RuntimeException {
+
+ private final String url;
+ private final int responseCode;
+ private final String reason;
+
+ public HttpException(String url, int responseCode, String reason) {
+ this.url = url;
+ this.responseCode = responseCode;
+ this.reason = reason;
+ }
+
+ @Override
+ public String getMessage() {
+ return String.format("Request failed for URL '%s'. Response code: %d %s",
+ url,
+ responseCode,
+ reason);
+ }
+}
diff --git a/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/test/DummyHttpServer.java b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/test/DummyHttpServer.java
new file mode 100644
index 00000000..2a1ba7a6
--- /dev/null
+++ b/rest-services/http-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/test/DummyHttpServer.java
@@ -0,0 +1,99 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. 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.sdk.rest.services.adapters.http.test;
+
+import io.vavr.CheckedFunction0;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
+import org.reactivestreams.Publisher;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import reactor.core.publisher.Mono;
+import reactor.netty.DisposableServer;
+import reactor.netty.http.server.HttpServer;
+import reactor.netty.http.server.HttpServerResponse;
+import reactor.netty.http.server.HttpServerRoutes;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since February 2019
+ */
+public class DummyHttpServer {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(DummyHttpServer.class);
+ private final DisposableServer server;
+
+ private DummyHttpServer(DisposableServer server) {
+ this.server = server;
+ }
+
+ public static DummyHttpServer start(Consumer<HttpServerRoutes> routes) {
+ LOGGER.info("Starting dummy server");
+ final DisposableServer server = HttpServer.create()
+ .host("127.0.0.1")
+ .route(routes)
+ .bind()
+ .block();
+ LOGGER.info("Server started");
+ return new DummyHttpServer(server);
+ }
+
+ public static Publisher<Void> sendInOrder(AtomicInteger state, Publisher<Void>... responses) {
+ return responses[state.getAndIncrement()];
+ }
+
+ public static Publisher<Void> sendResource(HttpServerResponse httpServerResponse, String resourcePath) {
+ return sendString(httpServerResponse, Mono.fromCallable(() -> readResource(resourcePath)));
+ }
+
+ public static Publisher<Void> sendString(HttpServerResponse httpServerResponse, Publisher<String> content) {
+ return httpServerResponse.sendString(content);
+ }
+
+ public void close() {
+ server.disposeNow();
+ }
+
+ public String host() {
+ return server.host();
+ }
+
+ public int port() {
+ return server.port();
+ }
+
+ private static String readResource(String resourcePath) {
+ try {
+ return CheckedFunction0.constant(resourcePath)
+ .andThen(DummyHttpServer.class::getResource)
+ .andThen(URL::toURI)
+ .andThen(Paths::get)
+ .andThen(Files::readAllBytes)
+ .andThen(String::new)
+ .apply();
+ } catch (Throwable throwable) {
+ throw new RuntimeException(throwable);
+ }
+ }
+}