com.github.lkqm.hcnet.util.InnerUtils Maven / Gradle / Ivy
package com.github.lkqm.hcnet.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import lombok.SneakyThrows;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class InnerUtils {
/**
* 海康时间轴转化为时间轴
*/
public static long hikAbsTimeToTimestamp(int absTime) {
int year = (((absTime) >> 26) + 2000);
int month = ((absTime >> 22) & 15) - 1;
int day = (absTime >> 17) & 31;
int hour = (absTime >> 12) & 31;
int minute = (absTime >> 6) & 63;
int second = (absTime) & 63;
Calendar result = Calendar.getInstance(TimeZone.getDefault());
result.set(Calendar.YEAR, year);
result.set(Calendar.MONTH, month);
result.set(Calendar.DAY_OF_MONTH, day);
result.set(Calendar.HOUR_OF_DAY, hour);
result.set(Calendar.MINUTE, minute);
result.set(Calendar.SECOND, second);
return result.getTimeInMillis();
}
/**
* 创建文件所在目录.
*/
public static boolean makeParentDirExists(File file) {
File parentDir = file.getParentFile();
if (!parentDir.exists()) {
return parentDir.mkdirs();
}
return true;
}
/**
* 写入文件.
*/
public static void writeFile(byte[] bytes, String path) {
File file = new File(path);
InnerUtils.makeParentDirExists(file);
try (FileOutputStream fos = new FileOutputStream(file, true)) {
fos.write(bytes);
fos.flush();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* 时间格式化
*/
public static String formatDate(Date date, String format) {
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(date);
}
/**
* 转换xml为map
*/
@SneakyThrows
public static Map xmlToFlatMap(String xml, String rootElement) {
Map map = new HashMap<>();
Document doc = parseXmlString(xml);
NodeList rootNode = doc.getElementsByTagName(rootElement);
if (rootNode == null || rootNode.getLength() == 0) {
return map;
}
Node root = rootNode.item(0);
NodeList nodes = root.getChildNodes();
if (nodes == null) {
return map;
}
for (int i = 0; i < nodes.getLength(); i++) {
Node node = nodes.item(i);
map.put(node.getNodeName(), node.getTextContent());
}
return map;
}
private static Document parseXmlString(String xmlStr)
throws ParserConfigurationException, IOException, SAXException {
InputSource is = new InputSource(new StringReader(xmlStr));
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(is);
return doc;
}
}