com.feilong.net.http.builder.httpurirequest.HttpEntityBuilder Maven / Gradle / Ivy
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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
/*
* 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.builder.httpurirequest;
import static com.feilong.core.CharsetType.UTF8;
import static com.feilong.core.Validator.isNotNullOrEmpty;
import static com.feilong.core.Validator.isNullOrEmpty;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.entity.StringEntity;
import com.feilong.json.JsonUtil;
import com.feilong.net.UncheckedHttpException;
import com.feilong.net.http.HttpRequest;
import com.feilong.tools.slf4j.Slf4jUtil;
/**
* {@link HttpEntity} 构造器.
*
* @author feilong
* @since 1.10.6
*/
final class HttpEntityBuilder{
/** Don't let anyone instantiate this class. */
private HttpEntityBuilder(){
//AssertionError不是必须的. 但它可以避免不小心在类的内部调用构造器. 保证该类在任何情况下都不会被实例化.
//see 《Effective Java》 2nd
throw new AssertionError("No " + getClass().getName() + " instances for you!");
}
//---------------------------------------------------------------
/**
* Builds the.
*
* @param httpRequest
* the http request
* @return the http entity
*/
static HttpEntity build(HttpRequest httpRequest){
String requestBody = httpRequest.getRequestBody();
if (isNotNullOrEmpty(requestBody)){
return new StringEntity(requestBody, UTF8);
}
//---------------------------------------------------------------
return buildFormHttpEntity(httpRequest.getParamMap());
}
//---------------------------------------------------------------
/**
* Builds the form http entity.
*
* @param paramMap
* the param map
* @return the http entity
*/
private static HttpEntity buildFormHttpEntity(Map paramMap){
if (isNullOrEmpty(paramMap)){
return null;
}
//---------------------------------------------------------------
List nameValuePairList = NameValuePairBuilder.build(paramMap);
try{
return new UrlEncodedFormEntity(nameValuePairList, UTF8);
}catch (UnsupportedEncodingException e){
String message = Slf4jUtil.format("paramMap:[{}]", JsonUtil.format(paramMap));
throw new UncheckedHttpException(message, e);
}
}
}