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package org.openecomp.sdc.asdctool.migration.core;
import java.math.BigInteger;
public class DBVersion implements Comparable<DBVersion>{
private static final String VERSION_PARTS_SEPARATOR = "\\.";
private static final int MAJOR_PART_IDX = 0;
private static final int MINOR_PART_IDX = 1;
private BigInteger major;
private BigInteger minor;
/**
* The current db version. should be tested against real db to verify it is compatible to the db version
*/
public static final DBVersion CURRENT_VERSION = new DBVersion(1710, 0);
private DBVersion(BigInteger major, BigInteger minor) {
this.major = major;
this.minor = minor;
}
private DBVersion(int major, int minor) {
this.major = BigInteger.valueOf(major);
this.minor = BigInteger.valueOf(minor);
}
public BigInteger getMajor() {
return major;
}
public BigInteger getMinor() {
return minor;
}
public static DBVersion from(BigInteger major, BigInteger minor) {
return new DBVersion(major, minor);
}
public static DBVersion fromString(String version) {
String[] split = version.split(VERSION_PARTS_SEPARATOR);
if (split.length != 2) {
throw new MigrationException("version must be of pattern: <major>.<minor>");
}
return new DBVersion(getVersionPart(split[MAJOR_PART_IDX]),
getVersionPart(split[MINOR_PART_IDX]));
}
private static BigInteger getVersionPart(String versionPart) {
try {
return new BigInteger(versionPart);
} catch (NumberFormatException e) {
throw new MigrationException(String.format("version part %s is non numeric", versionPart));
}
}
@Override
public String toString() {
return String.format("%s.%s", major, minor);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
DBVersion dbVersion = (DBVersion) o;
return major.equals(dbVersion.major) && minor.equals(dbVersion.minor);
}
@Override
public int hashCode() {
int result = major.hashCode();
result = 31 * result + minor.hashCode();
return result;
}
@Override
public int compareTo(DBVersion o) {
if (o == null) {
return 1;
}
int majorsComparision = this.major.compareTo(o.major);
if (majorsComparision != 0) {
return majorsComparision;
}
int minorsComparision = this.minor.compareTo(o.minor);
if (minorsComparision != 0) {
return minorsComparision;
}
return 0;
}
}
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