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package io.undertow.server.handlers;

import java.util.Collections;
import java.util.Map;
import java.util.Set;

import org.xnio.conduits.StreamSinkConduit;
import io.undertow.conduits.StoredResponseStreamSinkConduit;
import io.undertow.server.ConduitWrapper;
import io.undertow.server.HandlerWrapper;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.builder.HandlerBuilder;
import io.undertow.util.ConduitFactory;

A handler that buffers the full response and attaches it to the exchange. This makes use of StoredResponseStreamSinkConduit

This will be made available once the response is fully complete, so should generally be read in an ExchangeCompletionListener

Author:Stuart Douglas
/** * A handler that buffers the full response and attaches it to the exchange. This makes use of * {@link StoredResponseStreamSinkConduit} * <p> * This will be made available once the response is fully complete, so should generally * be read in an {@link io.undertow.server.ExchangeCompletionListener} * * @author Stuart Douglas */
public class StoredResponseHandler implements HttpHandler { private final HttpHandler next; public StoredResponseHandler(HttpHandler next) { this.next = next; } @Override public void handleRequest(HttpServerExchange exchange) throws Exception { exchange.addResponseWrapper(new ConduitWrapper<StreamSinkConduit>() { @Override public StreamSinkConduit wrap(ConduitFactory<StreamSinkConduit> factory, HttpServerExchange exchange) { return new StoredResponseStreamSinkConduit(factory.create(), exchange); } }); next.handleRequest(exchange); } @Override public String toString() { return "store-response()"; } public static class Builder implements HandlerBuilder { @Override public String name() { return "store-response"; } @Override public Map<String, Class<?>> parameters() { return Collections.emptyMap(); } @Override public Set<String> requiredParameters() { return Collections.emptySet(); } @Override public String defaultParameter() { return null; } @Override public HandlerWrapper build(Map<String, Object> config) { return new HandlerWrapper() { @Override public HttpHandler wrap(HttpHandler handler) { return new StoredResponseHandler(handler); } }; } } }