me.phoboslabs.illuminati.common.util.ConvertUtil Maven / Gradle / Ivy
/*
* Copyright 2017 Phoboslabs.me
*
* 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 me.phoboslabs.illuminati.common.util;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
public class ConvertUtil {
public static Map getClientInfoFromHttpRequest (final HttpServletRequest request) throws Exception {
if (request == null) {
throw new Exception("The Request must not be null.");
}
final Map clientInfoMap = new HashMap<>();
clientInfoMap.put("clientIp", request.getHeader("X-FORWARDED-FOR"));
clientInfoMap.put("path", request.getRequestURI());
clientInfoMap.put("remoteAddr", request.getRemoteAddr());
clientInfoMap.put("queryString", request.getQueryString());
// some frameworks (ex. grails) we can't be find requestUri by getRequestURI.
// so add this line for get requestUri
final Object anotherPath = request.getAttribute("javax.servlet.forward.request_uri");
if (anotherPath != null) {
clientInfoMap.put("anotherPath", anotherPath.toString());
}
return clientInfoMap;
}
private static final String CHAOS_BOMBER_KEYWORD = "ChaosBomber";
public static Map getStaticInfoFromHttpRequest (final HttpServletRequest request) {
final Map staticInfoMap = new HashMap<>();
staticInfoMap.put("domain", request.getServerName());
staticInfoMap.put("serverPort", request.getLocalPort());
if (request.getAttribute(CHAOS_BOMBER_KEYWORD) != null && "true".equals(request.getAttribute(CHAOS_BOMBER_KEYWORD).toString())) {
request.setAttribute(CHAOS_BOMBER_KEYWORD, null);
staticInfoMap.put(CHAOS_BOMBER_KEYWORD, true);
}
return staticInfoMap;
}
public static boolean getChaosBomberFromHttpRequest (final HttpServletRequest request) {
if (request.getAttribute(CHAOS_BOMBER_KEYWORD) != null && "true".equals(request.getAttribute(CHAOS_BOMBER_KEYWORD).toString())) {
request.setAttribute(CHAOS_BOMBER_KEYWORD,null);
return true;
}
return false;
}
public static Map castToMapOf(Class clazzK, Class clazzV, Map map) {
for (Map.Entry e: map.entrySet()) {
checkCast(clazzK, e.getKey());
checkCast(clazzV, e.getValue());
}
@SuppressWarnings("unchecked")
Map result = (Map) map;
return result;
}
private static void checkCast(Class clazz, Object obj) {
if (obj != null && !clazz.isInstance(obj)) {
StringBuilder exMessage = new StringBuilder()
.append("Expected : " + clazz.getName())
.append("Was : " + obj.getClass().getName())
.append("Value : " + obj);
throw new ClassCastException(exMessage.toString());
}
}
public static Map convertObjectToMap (Object obj) throws Exception {
Map map = new HashMap<>();
final Field[] fields = obj.getClass().getDeclaredFields();
for(int i=0; i