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/**
* Copyright 2016-2017 CMCC Corporation.
*
* 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.usecaseui.server.util;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import jakarta.servlet.http.HttpServletRequest;
import com.google.common.base.Throwables;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class UuiCommonUtil {
private static final Logger logger = LoggerFactory.getLogger(UuiCommonUtil.class);
/**
*
* getUUID
*
* @Auther YYY
* @Date 2018/4/26
* @Title: getUUID
* @Description:
* @return
*/
public static String getUUID() {
UUID uuid = UUID.randomUUID();
String str = uuid.toString();
return str.substring(0, 8) + str.substring(9, 13)
+ str.substring(14, 18) + str.substring(19, 23)
+ str.substring(24);
}
/**
*
* isNotNullOrEmpty
*
* @Auther YYY
* @Date 2018/5/4
* @Title: isNotNullOrEmpty
* @Description:
* @param obj
* @return
*/
public static boolean isNotNullOrEmpty(Object obj) {
if(null == obj) {
return false;
}
if(obj instanceof Collection) {
if (((Collection)obj).size() == 0) {
return false;
}
} else if (obj instanceof String) {
if (((String)obj).trim().equals("")) {
return false;
}
} else if (obj instanceof Map) {
if (((Map)obj).size() == 0) {
return false;
}
} else if (obj.getClass().isArray()) {
if(Array.getLength(obj) == 0) {
return false;
}
} else if (obj instanceof StringBuffer) {
if (((StringBuffer)obj).length() == 0) {
return false;
}
}
return true;
}
/**
*
* OutRequestBody
*
* @Auther YYY
* @Date 2018/5/9
* @Title: OutRequestBody
* @Description:
* @param request
* @return
*/
public static String OutRequestBody(HttpServletRequest request){
BufferedReader br;
String str, wholeStr = "";
try {
br = request.getReader();
while((str = br.readLine()) != null){
wholeStr += str;
}
} catch (IOException e) {
logger.error("exception occurred while performing UuiCommonUtil OutRequestBody.Details:"+ e.getMessage());
logger.error("exception occurred while performing UuiCommonUtil OutRequestBody.Details:"+ Throwables.getStackTraceAsString(e));
}
return wholeStr;
}
public static boolean checkNumber(String num,String format){
boolean result = false;
if(isNotNullOrEmpty(num)){
if(num.matches(format)){
result = true;
}
}
return result;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public static List getPageList(List list,int currentPage,int pageSize){
List listPages = new ArrayList();
int currIdx = (currentPage > 1 ? (currentPage -1) * pageSize : 0);
for (int i = 0; i < pageSize && i < list.size() - currIdx; i++) {
Object listPage= list.get(currIdx + i);
listPages.add(listPage);
}
return listPages;
}
public static boolean isExistFile(String path) {
if (null == path || "".equals(path.trim())) {
return false;
}
File targetFile = new File(path);
return targetFile.exists();
}
public static String readJsonFile(String path) throws IOException{
File file = new File(path);
String content= FileUtils.readFileToString(file,"UTF-8");
return content;
}
}
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