diff options
author | 2019-02-27 17:10:03 +0100 | |
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committer | 2019-02-28 15:02:35 +0100 | |
commit | 6493e10bc206313bd92a6b4f760b0a7e3d6ee641 (patch) | |
tree | 87bc12e63eeb9301850d8e443be05ed02f2d6679 /rest-services/common-dependency/src | |
parent | 5e6c996472969e50b3da60a06559c3231218637e (diff) |
Remove Spring stuff from DMaaP
Change-Id: Id441d0dce89fcb24b5558af7bdf996a74eba78e6
Issue-ID: DCAEGEN2-1245
Signed-off-by: Marcin Migdal <marcin.migdal@nokia.com>
Diffstat (limited to 'rest-services/common-dependency/src')
-rw-r--r-- | rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java new file mode 100644 index 00000000..cba5c6af --- /dev/null +++ b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/adapters/http/CloudHttpClient.java @@ -0,0 +1,117 @@ +/* + * ============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.codec.http.HttpStatusClass; +import io.netty.handler.ssl.SslContext; +import io.vavr.collection.Stream; +import java.io.IOException; +import java.util.Collections; +import java.util.Map; +import java.util.function.BiConsumer; +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.HttpClientRequest; +import reactor.netty.http.client.HttpClientResponse; + +/** + * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 11/15/18 + */ + +public class CloudHttpClient { + + private static final Logger LOGGER = LoggerFactory.getLogger(CloudHttpClient.class); + private final Gson gson = new Gson(); + private final HttpClient httpClient; + + public CloudHttpClient() { + this(HttpClient.create()); + } + + public CloudHttpClient(SslContext sslContext) { + this(HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext))); + } + + private CloudHttpClient(HttpClient httpClient) { + this.httpClient = httpClient; + + } + + public <T> Mono<T> get(String url, RequestDiagnosticContext context, Class<T> bodyClass) { + return get(url, context, Collections.EMPTY_MAP, bodyClass); + } + + public <T> Mono<T> get(String url, RequestDiagnosticContext context, Map<String, String> customHeaders, Class<T> bodyClass) { + final HttpClient clientWithHeaders = httpClient + .doOnRequest((req, conn) -> logRequest(context, req)) + .doOnResponse((rsp, conn) -> logResponse(context, rsp)) + .headers(hdrs -> context.remoteCallHttpHeaders().forEach((BiConsumer<String, String>) hdrs::set)) + .headers(hdrs -> customHeaders.forEach(hdrs::set)); + return callHttpGet(clientWithHeaders, url, bodyClass); + } + + public <T> Mono<T> get(String url, Class<T> bodyClass) { + return callHttpGet(httpClient, url, bodyClass); + } + + private <T> Mono<T> callHttpGet(HttpClient client, String url, Class<T> bodyClass) { + return client.get() + .uri(url) + .responseSingle((resp, content) -> HttpStatusClass.SUCCESS.contains(resp.status().code()) + ? content.asString() + : Mono.error(createException(url, resp))) + .map(body -> parseJson(body, bodyClass)); + } + + private Exception createException(String url, HttpClientResponse response) { + return new IOException(String.format("Request failed for URL '%s'. Response code: %s", + url, + response.status())); + } + + private <T> T parseJson(String body, Class<T> bodyClass) { + return gson.fromJson(body, bodyClass); + } + + private void logRequest(RequestDiagnosticContext context, HttpClientRequest httpClientRequest) { + context.withSlf4jMdc(LOGGER.isDebugEnabled(), () -> { + LOGGER.debug("Request: {} {}", httpClientRequest.method(), httpClientRequest.uri()); + 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()); + }); + } +} + |