org.kaizen4j.common.httpclient.HttpClientProxyFactoryBean Maven / Gradle / Ivy

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package org.kaizen4j.common.httpclient;

import org.apache.http.client.HttpRequestRetryHandler;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.client.StandardHttpRequestRetryHandler;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.kaizen4j.common.httpclient.interceptor.GZIPHttpResponseInterceptor;
import org.springframework.beans.factory.FactoryBean;

import com.google.common.base.Preconditions;

/**
 * HttpClientProxy 的工厂 Bean。使用示例：
 *
 *  * {@code
 *  
 * 		
 * 		
 * 		
 * 		
 * 	
 * }
 * 
 */
public final class HttpClientProxyFactoryBean implements FactoryBean {

    private int maxPerRoute;

    // 单位毫秒
    private int timeoutMills;

    private int requestRetryCount;

    public int getMaxPerRoute() {
        return maxPerRoute;
    }

    public void setMaxPerRoute(int maxPerRoute) {
        this.maxPerRoute = maxPerRoute;
    }

    public int getTimeoutMills() {
        return timeoutMills;
    }

    public void setTimeoutMills(int timeoutMills) {
        this.timeoutMills = timeoutMills;
    }

    public int getRequestRetryCount() {
        return requestRetryCount;
    }

    public void setRequestRetryCount(int requestRetryCount) {
        this.requestRetryCount = requestRetryCount;
    }

    /*
     * @throws Exception
     *
     * @see org.springframework.beans.factory.FactoryBean#getObject()
     */
    @Override
    public HttpClientProxy getObject() throws Exception {
        Preconditions.checkArgument(0 != maxPerRoute && 0 != timeoutMills);

        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
        connectionManager.setDefaultMaxPerRoute(maxPerRoute);

        RequestConfig requestConfig =
                        RequestConfig.custom().setConnectionRequestTimeout(timeoutMills).setConnectTimeout(timeoutMills)
                                        .setSocketTimeout(timeoutMills).setContentCompressionEnabled(true).build();

        boolean requestSentRetryEnabled = (0 != requestRetryCount) ? true : false;
        HttpRequestRetryHandler httpRequestRetryHandler =
                        new StandardHttpRequestRetryHandler(requestRetryCount, requestSentRetryEnabled);

        CloseableHttpClient httpClient = HttpClients.custom().setDefaultRequestConfig(requestConfig)
                        .setConnectionManager(connectionManager).setRetryHandler(httpRequestRetryHandler)
                        .addInterceptorFirst(new GZIPHttpResponseInterceptor()).build();

        return new HttpClientProxy(httpClient);
    }

    /*
     * @see org.springframework.beans.factory.FactoryBean#getObjectType()
     */
    @Override
    public Class getObjectType() {
        return HttpClientProxy.class;
    }

    /*
     * @see org.springframework.beans.factory.FactoryBean#isSingleton()
     */
    @Override
    public boolean isSingleton() {
        return true;
    }

}