arturobernalg commented on code in PR #681: URL: https://github.com/apache/httpcomponents-client/pull/681#discussion_r2250046172
########## httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/ContentCompressionAsyncExec.java: ########## @@ -0,0 +1,171 @@ +/* + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * <http://www.apache.org/>. + * + */ +package org.apache.hc.client5.http.impl.async; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.LinkedHashMap; +import java.util.Locale; +import java.util.function.UnaryOperator; + +import org.apache.hc.client5.http.async.AsyncExecCallback; +import org.apache.hc.client5.http.async.AsyncExecChain; +import org.apache.hc.client5.http.async.AsyncExecChainHandler; +import org.apache.hc.client5.http.async.methods.InflatingAsyncDataConsumer; +import org.apache.hc.client5.http.entity.compress.ContentCoding; +import org.apache.hc.client5.http.protocol.HttpClientContext; +import org.apache.hc.core5.annotation.Contract; +import org.apache.hc.core5.annotation.Internal; +import org.apache.hc.core5.annotation.ThreadingBehavior; +import org.apache.hc.core5.http.EntityDetails; +import org.apache.hc.core5.http.Header; +import org.apache.hc.core5.http.HeaderElement; +import org.apache.hc.core5.http.HttpException; +import org.apache.hc.core5.http.HttpHeaders; +import org.apache.hc.core5.http.HttpRequest; +import org.apache.hc.core5.http.HttpResponse; +import org.apache.hc.core5.http.config.Lookup; +import org.apache.hc.core5.http.config.RegistryBuilder; +import org.apache.hc.core5.http.message.BasicHeaderValueParser; +import org.apache.hc.core5.http.message.MessageSupport; +import org.apache.hc.core5.http.message.ParserCursor; +import org.apache.hc.core5.http.nio.AsyncDataConsumer; +import org.apache.hc.core5.http.nio.AsyncEntityProducer; +import org.apache.hc.core5.util.Args; + +@Contract(threading = ThreadingBehavior.STATELESS) +@Internal +public final class ContentCompressionAsyncExec implements AsyncExecChainHandler { + + private final Lookup<UnaryOperator<AsyncDataConsumer>> decoders; + private final Header acceptEncoding; + private final boolean ignoreUnknown; + + public ContentCompressionAsyncExec( + final LinkedHashMap<String, UnaryOperator<AsyncDataConsumer>> decoderMap, + final boolean ignoreUnknown) { + + Args.notEmpty(decoderMap, "Decoder map"); + + this.acceptEncoding = MessageSupport.headerOfTokens( + HttpHeaders.ACCEPT_ENCODING, new ArrayList<>(decoderMap.keySet())); + + final RegistryBuilder<UnaryOperator<AsyncDataConsumer>> rb = RegistryBuilder.create(); + decoderMap.forEach(rb::register); + this.decoders = rb.build(); + this.ignoreUnknown = ignoreUnknown; + } + + /** + * default = DEFLATE only + */ + public ContentCompressionAsyncExec() { + final LinkedHashMap<String, UnaryOperator<AsyncDataConsumer>> map = new LinkedHashMap<>(); + map.put(ContentCoding.DEFLATE.token(), + d -> new InflatingAsyncDataConsumer(d, null)); + this.acceptEncoding = MessageSupport.headerOfTokens( + HttpHeaders.ACCEPT_ENCODING, Collections.singletonList(ContentCoding.DEFLATE.token())); + this.decoders = RegistryBuilder.<UnaryOperator<AsyncDataConsumer>>create() + .register(ContentCoding.DEFLATE.token(), map.get(ContentCoding.DEFLATE.token())) + .build(); + this.ignoreUnknown = true; + } + + + @Override + public void execute(final HttpRequest request, + final AsyncEntityProducer producer, + final AsyncExecChain.Scope scope, + final AsyncExecChain chain, + final AsyncExecCallback cb) throws IOException, HttpException { + + final HttpClientContext ctx = scope != null ? scope.clientContext : HttpClientContext.create(); + final boolean enabled = ctx.getRequestConfigOrDefault().isContentCompressionEnabled(); + + if (enabled && !request.containsHeader(HttpHeaders.ACCEPT_ENCODING)) { + request.addHeader(acceptEncoding); + } + + chain.proceed(request, producer, scope, new AsyncExecCallback() { + + @Override + public AsyncDataConsumer handleResponse(final HttpResponse rsp, final EntityDetails details) + throws HttpException, IOException { + + if (!enabled) { + return cb.handleResponse(rsp, details); + } + + /* header lookup – unchanged from previous version */ + String raw = details != null ? details.getContentEncoding() : null; + if (raw == null) { + final Header h = rsp.getFirstHeader(HttpHeaders.CONTENT_ENCODING); + if (h != null) raw = h.getValue(); + } + + AsyncDataConsumer downstream = cb.handleResponse(rsp, details); Review Comment: On more time @ok2c -- This is an automated message from the Apache Git Service. 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