com.avaje.ebean.dbmigration.runner.Checksum Maven / Gradle / Ivy
package com.avaje.ebean.dbmigration.runner;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;
import java.util.zip.CRC32;
/**
* Calculates the checksum for the given string content.
*/
public class Checksum {
/**
* Returns the checksum of this string.
*/
public static int calculate(String str) {
final CRC32 crc32 = new CRC32();
BufferedReader bufferedReader = new BufferedReader(new StringReader(str));
try {
String line;
while ((line = bufferedReader.readLine()) != null) {
crc32.update(line.getBytes("UTF-8"));
}
} catch (IOException e) {
throw new RuntimeException("Failed to calculate checksum", e);
}
return (int) crc32.getValue();
}
}