nosum-support/support-http/src/main/java/cn/nosum/http/SimpleGetRequestExecutor.java

package cn.nosum.http;

import cn.nosum.http.apache.ApacheSimpleGetRequestExecutor;
import cn.nosum.http.exception.HttpErrorException;
import cn.nosum.http.jodd.JoddHttpSimpleGetRequestExecutor;
import cn.nosum.http.okhttp.OkHttpSimpleGetRequestExecutor;

import java.io.IOException;

/**
 * 简单的 GET 请求执行器.
 *
 * @param <H> 请求对象
 * @param <P> 代理对象
 * @param <R> 返回类型
 * @author Young
 */
public abstract class SimpleGetRequestExecutor<H, P, R> extends SimpleRequestExecutor<H, P, String, R> {

    public SimpleGetRequestExecutor(RequestHttp<H, P> requestHttp) {
        super(requestHttp);
    }

    public SimpleGetRequestExecutor(RequestHttp<H, P> requestHttp, ResponseHandler<R,R> responseHandler) {
        super(requestHttp, responseHandler);
    }

    @Override
    public <V> V execute(String uri, String queryParam, ResponseHandler<R,V> handler) throws HttpErrorException, IOException {
        if (queryParam != null) {
            if (uri.indexOf('?') == -1) {
                uri += '?';
            }
            uri += uri.endsWith("?") ? queryParam : '&' + queryParam;
        }
        return handler.handle(doExecute(uri, queryParam));
    }

    public static RequestExecutor<String, String> create(RequestHttp requestHttp) {
        switch (requestHttp.getRequestType()) {
            case APACHE_HTTP:
                return new ApacheSimpleGetRequestExecutor(requestHttp);
            case JODD_HTTP:
                return new JoddHttpSimpleGetRequestExecutor(requestHttp);
            case OK_HTTP:
                return new OkHttpSimpleGetRequestExecutor(requestHttp);
            default:
                throw new IllegalArgumentException("非法请求参数");
        }
    }
}