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/*
* Copyright 2016 Huawei Technologies Co., Ltd.
*
* 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 org.onap.vfc.nfvo.resmanagement.common.util.request;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;
/**
* <br/>
* <p>
* Utility used for request
* </p>
*
* @author
* @version VFC 1.0 2016-3-17
*/
public final class RequestUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(RequestUtil.class);
/**
* Constructor<br/>
* <p>
* </p>
*
* @since VFC 1.0
*/
private RequestUtil() {
}
/**
* Get context string from http context
*
* @param context
* http context
* @return the needed string in http context
*/
public static String getStringRequestBody(HttpServletRequest context) {
try {
InputStream input = context.getInputStream();
return IOUtils.toString(input);
} catch(IOException e) {
LOGGER.error("function=getStringRequestBody, get httpservletrequest body exception: {}", e);
return null;
}
}
/**
* Get json parameter from http context
*
* @param context
* http context
* @return JSONObject
*/
public static JSONObject getJsonRequestBody(HttpServletRequest context) {
try {
String bodyStr = getStringRequestBody(context);
return JSONObject.fromObject(bodyStr);
} catch(JSONException e) {
LOGGER.error("function=getJsonRequestBody, maybe request param is not a jsonobject exception: {}", e);
return null;
}
}
/**
* Get the body of all request in json format<br/>
*
* @param context
* The http context
* @return JSONObject The body of all request in json format
* @since VFC 1.0
*/
public static JSONObject getAllJsonRequestBody(HttpServletRequest context) {
JSONObject requestBody = getJsonRequestBody(context);
if(null == requestBody) {
LOGGER.error("get httpservletrequest body exception");
requestBody = new JSONObject();
}
LOGGER.warn("function=getAllJsonRequestBody; msg=get request data is:[{}]", requestBody.toString());
requestBody.put("header", getContextHeader(context));
return requestBody;
}
/**
* Get the context header<br/>
*
* @param context
* The http context
* @return Map context header
* @since VFC 1.0
*/
@SuppressWarnings("unchecked")
private static Map<String, String> getContextHeader(HttpServletRequest context) {
Map<String, String> header = new HashMap<String, String>();
Enumeration<String> headerNames = context.getHeaderNames();
while(headerNames.hasMoreElements()) {
String headerName = headerNames.nextElement();
String value = context.getHeader(headerName);
header.put(headerName, value);
}
return header;
}
}
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