com.feilong.net.http.callback.ResponseBodyAsStringResultCallback Maven / Gradle / Ivy

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/*
 * Copyright (C) 2008 feilong
 *
 * 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.feilong.net.http.callback;

import static com.feilong.core.Validator.isNullOrEmpty;
import static com.feilong.core.lang.StringUtil.EMPTY;

import java.util.Date;

import com.feilong.lib.org.apache.http.HttpResponse;
import com.feilong.lib.org.apache.http.client.methods.HttpUriRequest;
import com.feilong.net.http.ConnectionConfig;
import com.feilong.net.http.HttpRequest;

/**
 * 通常用来解析接口返回的字符串 的 {@link ResultCallback}.
 * 
 * @author feilong
 * @since 2.1.0
 */
public class ResponseBodyAsStringResultCallback extends AbstractResultCallback{

    /** Static instance. */
    // the static instance works for all types
    public static final ResponseBodyAsStringResultCallback INSTANCE = new ResponseBodyAsStringResultCallback();

    //---------------------------------------------------------------

    @Override
    public String on(
                    HttpRequest httpRequest,
                    HttpUriRequest httpUriRequest,
                    HttpResponse httpResponse,
                    ConnectionConfig useConnectionConfig,
                    Date beginDate){
        com.feilong.net.http.HttpResponse feilongHttpResponse = buildHttpResponse(
                        httpRequest,
                        httpUriRequest,
                        httpResponse,
                        useConnectionConfig,
                        beginDate);

        if (isNullOrEmpty(feilongHttpResponse)){
            return EMPTY;
        }
        return feilongHttpResponse.getResultString();
    }

}