Java tutorial
/* * Copyright (c) 2011-2019 Contributors to the Eclipse Foundation * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License 2.0 which is available at * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 * which is available at https://www.apache.org/licenses/LICENSE-2.0. * * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 */ package io.vertx.core.http; import io.netty.handler.codec.http.HttpHeaderNames; import io.netty.handler.codec.http.HttpHeaderValues; import io.netty.util.AsciiString; /** * Contains often used Header names. * <p> * It also contains a utility method to create optimized {@link CharSequence} which can be used as header name and value. * * @author <a href="mailto:nmaurer@redhat.com">Norman Maurer</a> */ public final class HttpHeaders { /** JVM system property that disables HTTP headers validation, don't use this in production. */ private static final String DISABLE_HTTP_HEADERS_VALIDATION_PROP_NAME = "vertx.disableHttpHeadersValidation"; /** Constant that disables HTTP headers validation, this is a constant so the JIT can eliminate validation code. */ public static final boolean DISABLE_HTTP_HEADERS_VALIDATION = Boolean .getBoolean(DISABLE_HTTP_HEADERS_VALIDATION_PROP_NAME); /** * Accept header name */ public static final CharSequence ACCEPT = HttpHeaderNames.ACCEPT; /** * Accept-Charset header name */ public static final CharSequence ACCEPT_CHARSET = HttpHeaderNames.ACCEPT_CHARSET; /** * Accept-Encoding header name */ public static final CharSequence ACCEPT_ENCODING = HttpHeaderNames.ACCEPT_ENCODING; /** * Accept-Language header name */ public static final CharSequence ACCEPT_LANGUAGE = HttpHeaderNames.ACCEPT_LANGUAGE; /** * Accept-Ranges header name */ public static final CharSequence ACCEPT_RANGES = HttpHeaderNames.ACCEPT_RANGES; /** * Accept-Patch header name */ public static final CharSequence ACCEPT_PATCH = HttpHeaderNames.ACCEPT_PATCH; /** * Access-Control-Allow-Credentials header name */ public static final CharSequence ACCESS_CONTROL_ALLOW_CREDENTIALS = HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS; /** * Access-Control-Allow-Headers header name */ public static final CharSequence ACCESS_CONTROL_ALLOW_HEADERS = HttpHeaderNames.ACCESS_CONTROL_ALLOW_HEADERS; /** * Access-Control-Allow-Methods header name */ public static final CharSequence ACCESS_CONTROL_ALLOW_METHODS = HttpHeaderNames.ACCESS_CONTROL_ALLOW_METHODS; /** * Access-Control-Allow-Origin header name */ public static final CharSequence ACCESS_CONTROL_ALLOW_ORIGIN = HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN; /** * Access-Control-Expose-Headers header name */ public static final CharSequence ACCESS_CONTROL_EXPOSE_HEADERS = HttpHeaderNames.ACCESS_CONTROL_EXPOSE_HEADERS; /** * Access-Control-Max-Age header name */ public static final CharSequence ACCESS_CONTROL_MAX_AGE = HttpHeaderNames.ACCESS_CONTROL_MAX_AGE; /** * Access-Control-Request-Headers header name */ public static final CharSequence ACCESS_CONTROL_REQUEST_HEADERS = HttpHeaderNames.ACCESS_CONTROL_REQUEST_HEADERS; /** * Access-Control-Request-Method header name */ public static final CharSequence ACCESS_CONTROL_REQUEST_METHOD = HttpHeaderNames.ACCESS_CONTROL_REQUEST_METHOD; /** * Age header name */ public static final CharSequence AGE = HttpHeaderNames.AGE; /** * Allow header name */ public static final CharSequence ALLOW = HttpHeaderNames.ALLOW; /** * Authorization header name */ public static final CharSequence AUTHORIZATION = HttpHeaderNames.AUTHORIZATION; /** * Cache-Control header name */ public static final CharSequence CACHE_CONTROL = HttpHeaderNames.CACHE_CONTROL; /** * Connection header name */ public static final CharSequence CONNECTION = HttpHeaderNames.CONNECTION; /** * Content-Base header name */ public static final CharSequence CONTENT_BASE = HttpHeaderNames.CONTENT_BASE; /** * Content-Disposition header name */ public static final CharSequence CONTENT_DISPOSITION = HttpHeaderNames.CONTENT_DISPOSITION; /** * Content-Encoding header name */ public static final CharSequence CONTENT_ENCODING = HttpHeaderNames.CONTENT_ENCODING; /** * Content-Language header name */ public static final CharSequence CONTENT_LANGUAGE = HttpHeaderNames.CONTENT_LANGUAGE; /** * Content-Length header name */ public static final CharSequence CONTENT_LENGTH = HttpHeaderNames.CONTENT_LENGTH; /** * Content-Location header name */ public static final CharSequence CONTENT_LOCATION = HttpHeaderNames.CONTENT_LOCATION; /** * Content-Transfer-Encoding header name */ public static final CharSequence CONTENT_TRANSFER_ENCODING = HttpHeaderNames.CONTENT_TRANSFER_ENCODING; /** * Content-MD5 header name */ public static final CharSequence CONTENT_MD5 = HttpHeaderNames.CONTENT_MD5; /** * Content-Rage header name */ public static final CharSequence CONTENT_RANGE = HttpHeaderNames.CONTENT_RANGE; /** * Content-Type header name */ public static final CharSequence CONTENT_TYPE = HttpHeaderNames.CONTENT_TYPE; /** * Content-Cookie header name */ public static final CharSequence COOKIE = HttpHeaderNames.COOKIE; /** * Date header name */ public static final CharSequence DATE = HttpHeaderNames.DATE; /** * Etag header name */ public static final CharSequence ETAG = HttpHeaderNames.ETAG; /** * Expect header name */ public static final CharSequence EXPECT = HttpHeaderNames.EXPECT; /** * Expires header name */ public static final CharSequence EXPIRES = HttpHeaderNames.EXPIRES; /** * From header name */ public static final CharSequence FROM = HttpHeaderNames.FROM; /** * Host header name */ public static final CharSequence HOST = HttpHeaderNames.HOST; /** * If-Match header name */ public static final CharSequence IF_MATCH = HttpHeaderNames.IF_MATCH; /** * If-Modified-Since header name */ public static final CharSequence IF_MODIFIED_SINCE = HttpHeaderNames.IF_MODIFIED_SINCE; /** * If-None-Match header name */ public static final CharSequence IF_NONE_MATCH = HttpHeaderNames.IF_NONE_MATCH; /** * Last-Modified header name */ public static final CharSequence LAST_MODIFIED = HttpHeaderNames.LAST_MODIFIED; /** * Location header name */ public static final CharSequence LOCATION = HttpHeaderNames.LOCATION; /** * Origin header name */ public static final CharSequence ORIGIN = HttpHeaderNames.ORIGIN; /** * Proxy-Authenticate header name */ public static final CharSequence PROXY_AUTHENTICATE = HttpHeaderNames.PROXY_AUTHENTICATE; /** * Proxy-Authorization header name */ public static final CharSequence PROXY_AUTHORIZATION = HttpHeaderNames.PROXY_AUTHORIZATION; /** * Referer header name */ public static final CharSequence REFERER = HttpHeaderNames.REFERER; /** * Retry-After header name */ public static final CharSequence RETRY_AFTER = HttpHeaderNames.RETRY_AFTER; /** * Server header name */ public static final CharSequence SERVER = HttpHeaderNames.SERVER; /** * Transfer-Encoding header name */ public static final CharSequence TRANSFER_ENCODING = HttpHeaderNames.TRANSFER_ENCODING; /** * User-Agent header name */ public static final CharSequence USER_AGENT = HttpHeaderNames.USER_AGENT; /** * Set-Cookie header name */ public static final CharSequence SET_COOKIE = HttpHeaderNames.SET_COOKIE; /** * application/x-www-form-urlencoded header value */ public static final CharSequence APPLICATION_X_WWW_FORM_URLENCODED = HttpHeaderValues.APPLICATION_X_WWW_FORM_URLENCODED; /** * chunked header value */ public static final CharSequence CHUNKED = HttpHeaderValues.CHUNKED; /** * close header value */ public static final CharSequence CLOSE = HttpHeaderValues.CLOSE; /** * 100-continue header value */ public static final CharSequence CONTINUE = HttpHeaderValues.CONTINUE; /** * identity header value */ public static final CharSequence IDENTITY = HttpHeaderValues.IDENTITY; /** * keep-alive header value */ public static final CharSequence KEEP_ALIVE = HttpHeaderValues.KEEP_ALIVE; /** * Upgrade header value */ public static final CharSequence UPGRADE = HttpHeaderValues.UPGRADE; /** * WebSocket header value */ public static final CharSequence WEBSOCKET = HttpHeaderValues.WEBSOCKET; /** * deflate,gzip header value */ public static final CharSequence DEFLATE_GZIP = createOptimized("deflate, gzip"); /** * text/html header value */ public static final CharSequence TEXT_HTML = createOptimized("text/html"); /** * GET header value */ public static final CharSequence GET = createOptimized("GET"); /** * Create an optimized {@link CharSequence} which can be used as header name or value. * This should be used if you expect to use it multiple times liked for example adding the same header name or value * for multiple responses or requests. */ public static CharSequence createOptimized(String value) { return new AsciiString(value); } private HttpHeaders() { } }