com.google.maps.OkHttpRequestHandler.java Source code

Introduction

Here is the source code for com.google.maps.OkHttpRequestHandler.java

Source

/*
 * Copyright 2016 Google Inc. All rights reserved.
 *
 *
 * Licensed 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.
 */

package com.google.maps;

import com.google.gson.FieldNamingPolicy;
import com.google.maps.internal.ApiResponse;
import com.google.maps.internal.ExceptionsAllowedToRetry;
import com.google.maps.internal.OkHttpPendingResult;
import com.google.maps.internal.RateLimitExecutorService;
import com.squareup.okhttp.Dispatcher;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.Proxy;
import java.util.concurrent.TimeUnit;

/**
 * A strategy for handling URL requests using OkHttp.
 *
 * @see com.google.maps.GeoApiContext.RequestHandler
 */
public class OkHttpRequestHandler implements GeoApiContext.RequestHandler {
    private static final Logger LOG = LoggerFactory.getLogger(OkHttpRequestHandler.class.getName());
    private static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
    private final OkHttpClient client = new OkHttpClient();
    private final RateLimitExecutorService rateLimitExecutorService;

    public OkHttpRequestHandler() {
        rateLimitExecutorService = new RateLimitExecutorService();
        client.setDispatcher(new Dispatcher(rateLimitExecutorService));
    }

    @Override
    public <T, R extends ApiResponse<T>> PendingResult<T> handle(String hostName, String url, String userAgent,
            Class<R> clazz, FieldNamingPolicy fieldNamingPolicy, long errorTimeout, Integer maxRetries,
            ExceptionsAllowedToRetry exceptionsAllowedToRetry) {
        Request req = new Request.Builder().get().header("User-Agent", userAgent).url(hostName + url).build();

        LOG.info("Request: {}", hostName + url);

        return new OkHttpPendingResult<T, R>(req, client, clazz, fieldNamingPolicy, errorTimeout, maxRetries,
                exceptionsAllowedToRetry);
    }

    @Override
    public <T, R extends ApiResponse<T>> PendingResult<T> handlePost(String hostName, String url, String payload,
            String userAgent, Class<R> clazz, FieldNamingPolicy fieldNamingPolicy, long errorTimeout,
            Integer maxRetries, ExceptionsAllowedToRetry exceptionsAllowedToRetry) {
        RequestBody body = RequestBody.create(JSON, payload);
        Request req = new Request.Builder().post(body).header("User-Agent", userAgent).url(hostName + url).build();

        return new OkHttpPendingResult<T, R>(req, client, clazz, fieldNamingPolicy, errorTimeout, maxRetries,
                exceptionsAllowedToRetry);
    }

    @Override
    public void setConnectTimeout(long timeout, TimeUnit unit) {
        client.setConnectTimeout(timeout, unit);
    }

    @Override
    public void setReadTimeout(long timeout, TimeUnit unit) {
        client.setReadTimeout(timeout, unit);
    }

    @Override
    public void setWriteTimeout(long timeout, TimeUnit unit) {
        client.setWriteTimeout(timeout, unit);
    }

    @Override
    public void setQueriesPerSecond(int maxQps) {
        rateLimitExecutorService.setQueriesPerSecond(maxQps);
    }

    @Override
    public void setQueriesPerSecond(int maxQps, int minimumInterval) {
        rateLimitExecutorService.setQueriesPerSecond(maxQps, minimumInterval);
    }

    @Override
    public void setProxy(Proxy proxy) {
        client.setProxy(proxy);
    }

}