import java.lang.invoke.MethodHandles;
import java.util.concurrent.atomic.AtomicInteger;
+import org.oransc.enrichment.configuration.WebClientConfig.HttpProxyConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.MediaType;
import reactor.core.publisher.Mono;
import reactor.netty.http.client.HttpClient;
-import reactor.netty.resources.ConnectionProvider;
-import reactor.netty.tcp.TcpClient;
+import reactor.netty.transport.ProxyProvider;
/**
* Generic reactive REST client.
private final String baseUrl;
private static final AtomicInteger sequenceNumber = new AtomicInteger();
private final SslContext sslContext;
+ private final HttpProxyConfig httpProxyConfig;
- /**
- * Note that only http (not https) will work when this constructor is used.
- *
- * @param baseUrl
- */
- public AsyncRestClient(String baseUrl) {
- this(baseUrl, null);
- }
-
- public AsyncRestClient(String baseUrl, SslContext sslContext) {
+ public AsyncRestClient(String baseUrl, @Nullable SslContext sslContext, @Nullable HttpProxyConfig httpProxyConfig) {
this.baseUrl = baseUrl;
this.sslContext = sslContext;
+ this.httpProxyConfig = httpProxyConfig;
}
public Mono<ResponseEntity<String>> postForEntity(String uri, @Nullable String body) {
logger.debug("{} POST uri = '{}{}''", traceTag, baseUrl, uri);
logger.trace("{} POST body: {}", traceTag, body);
Mono<String> bodyProducer = body != null ? Mono.just(body) : Mono.empty();
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.post() //
- .uri(uri) //
- .contentType(MediaType.APPLICATION_JSON) //
- .body(bodyProducer, String.class);
- return retrieve(traceTag, request);
- });
+
+ RequestHeadersSpec<?> request = getWebClient() //
+ .post() //
+ .uri(uri) //
+ .contentType(MediaType.APPLICATION_JSON) //
+ .body(bodyProducer, String.class);
+ return retrieve(traceTag, request);
}
public Mono<String> post(String uri, @Nullable String body) {
return postForEntity(uri, body) //
- .flatMap(this::toBody);
+ .map(this::toBody);
}
public Mono<String> postWithAuthHeader(String uri, String body, String username, String password) {
Object traceTag = createTraceTag();
logger.debug("{} POST (auth) uri = '{}{}''", traceTag, baseUrl, uri);
logger.trace("{} POST body: {}", traceTag, body);
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.post() //
- .uri(uri) //
- .headers(headers -> headers.setBasicAuth(username, password)) //
- .contentType(MediaType.APPLICATION_JSON) //
- .bodyValue(body);
- return retrieve(traceTag, request) //
- .flatMap(this::toBody);
- });
+
+ RequestHeadersSpec<?> request = getWebClient() //
+ .post() //
+ .uri(uri) //
+ .headers(headers -> headers.setBasicAuth(username, password)) //
+ .contentType(MediaType.APPLICATION_JSON) //
+ .bodyValue(body);
+ return retrieve(traceTag, request) //
+ .map(this::toBody);
}
public Mono<ResponseEntity<String>> putForEntity(String uri, String body) {
Object traceTag = createTraceTag();
logger.debug("{} PUT uri = '{}{}''", traceTag, baseUrl, uri);
logger.trace("{} PUT body: {}", traceTag, body);
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.put() //
- .uri(uri) //
- .contentType(MediaType.APPLICATION_JSON) //
- .bodyValue(body);
- return retrieve(traceTag, request);
- });
+
+ RequestHeadersSpec<?> request = getWebClient() //
+ .put() //
+ .uri(uri) //
+ .contentType(MediaType.APPLICATION_JSON) //
+ .bodyValue(body);
+ return retrieve(traceTag, request);
}
public Mono<ResponseEntity<String>> putForEntity(String uri) {
Object traceTag = createTraceTag();
logger.debug("{} PUT uri = '{}{}''", traceTag, baseUrl, uri);
logger.trace("{} PUT body: <empty>", traceTag);
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.put() //
- .uri(uri);
- return retrieve(traceTag, request);
- });
+ RequestHeadersSpec<?> request = getWebClient() //
+ .put() //
+ .uri(uri);
+ return retrieve(traceTag, request);
}
public Mono<String> put(String uri, String body) {
return putForEntity(uri, body) //
- .flatMap(this::toBody);
+ .map(this::toBody);
}
public Mono<ResponseEntity<String>> getForEntity(String uri) {
Object traceTag = createTraceTag();
logger.debug("{} GET uri = '{}{}''", traceTag, baseUrl, uri);
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.get().uri(uri);
- return retrieve(traceTag, request);
- });
+ RequestHeadersSpec<?> request = getWebClient().get().uri(uri);
+ return retrieve(traceTag, request);
}
public Mono<String> get(String uri) {
return getForEntity(uri) //
- .flatMap(this::toBody);
+ .map(this::toBody);
}
public Mono<ResponseEntity<String>> deleteForEntity(String uri) {
Object traceTag = createTraceTag();
logger.debug("{} DELETE uri = '{}{}''", traceTag, baseUrl, uri);
- return getWebClient() //
- .flatMap(client -> {
- RequestHeadersSpec<?> request = client.delete().uri(uri);
- return retrieve(traceTag, request);
- });
+ RequestHeadersSpec<?> request = getWebClient().delete().uri(uri);
+ return retrieve(traceTag, request);
}
public Mono<String> delete(String uri) {
return deleteForEntity(uri) //
- .flatMap(this::toBody);
+ .map(this::toBody);
}
private Mono<ResponseEntity<String>> retrieve(Object traceTag, RequestHeadersSpec<?> request) {
logger.debug("{} HTTP error status = '{}', body '{}'", traceTag, exception.getStatusCode(),
exception.getResponseBodyAsString());
} else {
- logger.debug("{} HTTP error", traceTag, t);
+ logger.debug("{} HTTP error {}", traceTag, t.getMessage());
}
}
- private Mono<String> toBody(ResponseEntity<String> entity) {
+ private String toBody(ResponseEntity<String> entity) {
if (entity.getBody() == null) {
- return Mono.just("");
+ return "";
} else {
- return Mono.just(entity.getBody());
+ return entity.getBody();
}
}
- private TcpClient createTcpClientSecure(SslContext sslContext) {
- return TcpClient.create(ConnectionProvider.newConnection()) //
- .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10_000) //
- .secure(c -> c.sslContext(sslContext)) //
- .doOnConnected(connection -> {
- connection.addHandlerLast(new ReadTimeoutHandler(30));
- connection.addHandlerLast(new WriteTimeoutHandler(30));
- });
+ private boolean isHttpProxyConfigured() {
+ return httpProxyConfig != null && httpProxyConfig.httpProxyPort() > 0
+ && !httpProxyConfig.httpProxyHost().isEmpty();
}
- private TcpClient createTcpClientInsecure() {
- return TcpClient.create(ConnectionProvider.newConnection()) //
+ private HttpClient buildHttpClient() {
+ HttpClient httpClient = HttpClient.create() //
.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10_000) //
.doOnConnected(connection -> {
connection.addHandlerLast(new ReadTimeoutHandler(30));
connection.addHandlerLast(new WriteTimeoutHandler(30));
});
+
+ if (this.sslContext != null) {
+ httpClient = httpClient.secure(ssl -> ssl.sslContext(sslContext));
+ }
+
+ if (isHttpProxyConfigured()) {
+ httpClient = httpClient.proxy(proxy -> proxy.type(ProxyProvider.Proxy.HTTP)
+ .host(httpProxyConfig.httpProxyHost()).port(httpProxyConfig.httpProxyPort()));
+ }
+ return httpClient;
}
- private WebClient createWebClient(String baseUrl, TcpClient tcpClient) {
- HttpClient httpClient = HttpClient.from(tcpClient);
- ReactorClientHttpConnector connector = new ReactorClientHttpConnector(httpClient);
+ private WebClient buildWebClient(String baseUrl) {
+ final HttpClient httpClient = buildHttpClient();
ExchangeStrategies exchangeStrategies = ExchangeStrategies.builder() //
.codecs(configurer -> configurer.defaultCodecs().maxInMemorySize(-1)) //
.build();
return WebClient.builder() //
- .clientConnector(connector) //
+ .clientConnector(new ReactorClientHttpConnector(httpClient)) //
.baseUrl(baseUrl) //
.exchangeStrategies(exchangeStrategies) //
.build();
}
- private Mono<WebClient> getWebClient() {
+ private WebClient getWebClient() {
if (this.webClient == null) {
- try {
- if (this.sslContext != null) {
- TcpClient tcpClient = createTcpClientSecure(sslContext);
- this.webClient = createWebClient(this.baseUrl, tcpClient);
- } else {
- TcpClient tcpClient = createTcpClientInsecure();
- this.webClient = createWebClient(this.baseUrl, tcpClient);
- }
- } catch (Exception e) {
- logger.error("Could not create WebClient {}", e.getMessage());
- return Mono.error(e);
- }
+ this.webClient = buildWebClient(baseUrl);
}
- return Mono.just(this.webClient);
+ return this.webClient;
}
-
}
Code Review / nonrtric.git / blobdiff