OkHttp LoggingInterceptor

LoggingInterceptor.java

package io.prestosql.client;

import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

import java.io.IOException;

import static io.airlift.units.Duration.nanosSince;
import static java.lang.String.format;

public class LoggingInterceptor
        implements Interceptor
{
    @Override
    public Response intercept(Interceptor.Chain chain)
            throws IOException
    {
        Request request = chain.request();

        System.err.println(format("Sending request %s on %s%n%s",
                request.url(), chain.connection(), request.headers()));

        long start = System.nanoTime();
        Response response = chain.proceed(request);

        System.err.println(format("Received response for %s in %s%n%s",
                response.request().url(), nanosSince(start), response.headers()));

        return response;
    }
}