com.espertech.esper.runtime.client.util.RuntimeVersion Maven / Gradle / Ivy
/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.runtime.client.util;
/**
* Runtime version.
*/
public class RuntimeVersion {
/**
* Current runtime version.
*/
public static final String RUNTIME_VERSION = "8.2.0";
/**
* Current runtime major version.
*/
public static final int MAJOR;
/**
* Current runtime minor version.
*/
public static final int MINOR;
/**
* Current runtime patch version.
*/
public static final int PATCH;
static {
MajorMinorPatch level = parseVersion(RUNTIME_VERSION);
MAJOR = level.major;
MINOR = level.minor;
PATCH = level.patch;
}
/**
* Compare major and minor version
* @param compilerVersion version to compare
* @throws VersionException when a difference is found
*/
public static void checkVersion(String compilerVersion) throws VersionException {
if (RuntimeVersion.RUNTIME_VERSION.equals(compilerVersion)) {
return;
}
RuntimeVersion.MajorMinorPatch compiler;
try {
compiler = parseVersion(compilerVersion);
} catch (NumberFormatException ex) {
throw new VersionException(ex.getMessage(), ex);
}
if (compiler.getMajor() != RuntimeVersion.MAJOR || compiler.getMinor() != RuntimeVersion.MINOR) {
throw new VersionException("Major or minor version of compiler and runtime mismatch; The runtime version is " + RuntimeVersion.RUNTIME_VERSION + " and the compiler version of the compiled unit is " + compilerVersion);
}
}
private static MajorMinorPatch parseVersion(String version) throws NumberFormatException {
if (version == null || version.trim().length() == 0) {
throw new NumberFormatException("Null or empty semantic version");
}
String[] split = version.split("\\.");
if (split.length != 3) {
throw new NumberFormatException("Invalid semantic version '" + version + "'");
}
try {
return new MajorMinorPatch(Integer.parseInt(split[0]), Integer.parseInt(split[1]), Integer.parseInt(split[2]));
} catch (Throwable t) {
throw new NumberFormatException("Invalid semantic version '" + version + "'");
}
}
private static class MajorMinorPatch {
private final int major;
private final int minor;
private final int patch;
MajorMinorPatch(int major, int minor, int patch) {
this.major = major;
this.minor = minor;
this.patch = patch;
}
int getMajor() {
return major;
}
int getMinor() {
return minor;
}
public int getPatch() {
return patch;
}
}
public static class VersionException extends Exception {
VersionException(String message) {
super(message);
}
VersionException(String message, Throwable cause) {
super(message, cause);
}
}
}