GlowrootStatusCapturingMiddleware.java

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package dev.rafex.ether.glowroot.jetty12;
 
/*-
 * #%L
 * ether-glowroot-jetty12
 * %%
 * Copyright (C) 2025 - 2026 Raúl Eduardo González Argote
 * %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * #L%
 */
 
import dev.rafex.ether.http.core.HttpHandler;
import dev.rafex.ether.http.core.Middleware;
 
/**
 * Middleware that captures the HTTP response status code into Glowroot.
 *
 * <p>
 * Wraps the {@link dev.rafex.ether.http.core.HttpExchange} with a
 * {@link StatusCapturingHttpExchange} decorator that intercepts every
 * response-writing call ({@code json}, {@code text}, {@code noContent},
 * {@code methodNotAllowed}, {@code options}) and records:
 * </p>
 * <ul>
 * <li>{@code http.status} — numeric status code, e.g. {@code "200"}</li>
 * <li>{@code http.status_class} — status family, e.g. {@code "2xx"}</li>
 * </ul>
 *
 * <p>
 * Usage — register after {@link GlowrootHttpMiddleware} so the transaction name
 * is already set when the status is recorded:
 * </p>
 * 
 * <pre>{@code
 * middlewareRegistry.add(new GlowrootHttpMiddleware());
 * middlewareRegistry.add(new GlowrootStatusCapturingMiddleware());
 * }</pre>
 */
public final class GlowrootStatusCapturingMiddleware implements Middleware {
 
    @Override
    public HttpHandler wrap(final HttpHandler next) {
        return exchange -> next.handle(new StatusCapturingHttpExchange(exchange));
    }
}