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HttpComponents Core Source Code Files
HttpComponents Core Source Code Files are provided in the source package file, httpcomponents-core-5.2-src.zip.
You can download httpcomponents-core-5.2-src.zip as described in the previous tutorial and go to the "httpcore5/src" sub-folder to view Source Code files.
You can also browse HttpComponents Core Source Code below:
✍: FYIcenter.com
⏎ org/apache/hc/core5/http/nio/support/classic/AbstractClassicServerExchangeHandler.java
/* * ==================================================================== * 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.core5.http.nio.support.classic; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.nio.ByteBuffer; import java.util.List; import java.util.Locale; import java.util.Set; import java.util.concurrent.Executor; import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicReference; import org.apache.hc.core5.http.EntityDetails; import org.apache.hc.core5.http.Header; 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.HttpStatus; import org.apache.hc.core5.http.ProtocolVersion; import org.apache.hc.core5.http.message.BasicHttpResponse; import org.apache.hc.core5.http.message.HttpResponseWrapper; import org.apache.hc.core5.http.nio.AsyncServerExchangeHandler; import org.apache.hc.core5.http.nio.CapacityChannel; import org.apache.hc.core5.http.nio.DataStreamChannel; import org.apache.hc.core5.http.nio.ResponseChannel; import org.apache.hc.core5.http.protocol.HttpContext; import org.apache.hc.core5.io.Closer; import org.apache.hc.core5.util.Args; import org.apache.hc.core5.util.Asserts; /** * {@link AsyncServerExchangeHandler} implementation that acts as a compatibility * layer for classic {@link InputStream} / {@link OutputStream} based interfaces. * Blocking input / output processing is executed through an {@link Executor}. * * @since 5.0 */ public abstract class AbstractClassicServerExchangeHandler implements AsyncServerExchangeHandler { private enum State { IDLE, ACTIVE, COMPLETED } private final int initialBufferSize; private final Executor executor; private final AtomicReference<State> state; private final AtomicReference<Exception> exception; private volatile SharedInputBuffer inputBuffer; private volatile SharedOutputBuffer outputBuffer; public AbstractClassicServerExchangeHandler(final int initialBufferSize, final Executor executor) { this.initialBufferSize = Args.positive(initialBufferSize, "Initial buffer size"); this.executor = Args.notNull(executor, "Executor"); this.exception = new AtomicReference<>(); this.state = new AtomicReference<>(State.IDLE); } /** * Handles an incoming request optionally reading its entity content form the given input stream * and generates a response optionally writing out its entity content into the given output stream. * * @param request the incoming request * @param requestStream the request stream if the request encloses an entity, * {@code null} otherwise. * @param response the outgoing response. * @param responseStream the response entity output stream. * @param context the actual execution context. */ protected abstract void handle( HttpRequest request, InputStream requestStream, HttpResponse response, OutputStream responseStream, HttpContext context) throws IOException, HttpException; public Exception getException() { return exception.get(); } @Override public final void handleRequest( final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException { final AtomicBoolean responseCommitted = new AtomicBoolean(false); final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK); final HttpResponse responseWrapper = new HttpResponseWrapper(response){ private void ensureNotCommitted() { Asserts.check(!responseCommitted.get(), "Response already committed"); } @Override public void addHeader(final String name, final Object value) { ensureNotCommitted(); super.addHeader(name, value); } @Override public void setHeader(final String name, final Object value) { ensureNotCommitted(); super.setHeader(name, value); } @Override public void setVersion(final ProtocolVersion version) { ensureNotCommitted(); super.setVersion(version); } @Override public void setCode(final int code) { ensureNotCommitted(); super.setCode(code); } @Override public void setReasonPhrase(final String reason) { ensureNotCommitted(); super.setReasonPhrase(reason); } @Override public void setLocale(final Locale locale) { ensureNotCommitted(); super.setLocale(locale); } }; final InputStream inputStream; if (entityDetails != null) { inputBuffer = new SharedInputBuffer(initialBufferSize); inputStream = new ContentInputStream(inputBuffer); } else { inputStream = null; } outputBuffer = new SharedOutputBuffer(initialBufferSize); final OutputStream outputStream = new ContentOutputStream(outputBuffer) { private void triggerResponse() throws IOException { try { if (responseCommitted.compareAndSet(false, true)) { responseChannel.sendResponse(response, new EntityDetails() { @Override public long getContentLength() { return -1; } @Override public String getContentType() { final Header h = response.getFirstHeader(HttpHeaders.CONTENT_TYPE); return h != null ? h.getValue() : null; } @Override public String getContentEncoding() { final Header h = response.getFirstHeader(HttpHeaders.CONTENT_ENCODING); return h != null ? h.getValue() : null; } @Override public boolean isChunked() { return false; } @Override public Set<String> getTrailerNames() { return null; } }, context); } } catch (final HttpException ex) { throw new IOException(ex.getMessage(), ex); } } @Override public void close() throws IOException { triggerResponse(); super.close(); } @Override public void write(final byte[] b, final int off, final int len) throws IOException { triggerResponse(); super.write(b, off, len); } @Override public void write(final byte[] b) throws IOException { triggerResponse(); super.write(b); } @Override public void write(final int b) throws IOException { triggerResponse(); super.write(b); } }; if (state.compareAndSet(State.IDLE, State.ACTIVE)) { executor.execute(() -> { try { handle(request, inputStream, responseWrapper, outputStream, context); Closer.close(inputStream); outputStream.close(); } catch (final Exception ex) { exception.compareAndSet(null, ex); if (inputBuffer != null) { inputBuffer.abort(); } outputBuffer.abort(); } finally { state.set(State.COMPLETED); } }); } } @Override public final void updateCapacity(final CapacityChannel capacityChannel) throws IOException { if (inputBuffer != null) { inputBuffer.updateCapacity(capacityChannel); } } @Override public final void consume(final ByteBuffer src) throws IOException { Asserts.notNull(inputBuffer, "Input buffer"); inputBuffer.fill(src); } @Override public final void streamEnd(final List<? extends Header> trailers) throws HttpException, IOException { Asserts.notNull(inputBuffer, "Input buffer"); inputBuffer.markEndStream(); } @Override public final int available() { Asserts.notNull(outputBuffer, "Output buffer"); return outputBuffer.length(); } @Override public final void produce(final DataStreamChannel channel) throws IOException { Asserts.notNull(outputBuffer, "Output buffer"); outputBuffer.flush(channel); } @Override public final void failed(final Exception cause) { exception.compareAndSet(null, cause); releaseResources(); } @Override public void releaseResources() { } }
⏎ org/apache/hc/core5/http/nio/support/classic/AbstractClassicServerExchangeHandler.java
Or download all them as a single archive file:
File name: httpcore5-5.2-fyi.zip File size: 812477 bytes Release date: 2022-11-10 Download
⇒ Donwload httpcomponents-client-4.5.3-bin.zip
⇐ Download and Install HttpComponents Core Source Package
2023-03-07, 17715👍, 0💬
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