org.atmosphere.util.Version Maven / Gradle / Ivy
/*
* Copyright 2015 Async-IO.org
*
* 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.atmosphere.util;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Class contains information about Atmosphere framework
*
* @author Charlie Hunt
* @author Hubert Iwaniuk
*/
public class Version {
private static final Pattern versionPattern = Pattern.compile("((\\d+)\\.(\\d+)\\.(\\d+)){1}(.+)?");
private static final String dotedVersion;
private static final int major;
private static final int minor;
private static final int micro;
private static final String version;
public static void main(String[] args) {
System.out.println(Version.getDotedVersion());
}
/** Reads version from properties and parses it. */
static {
Properties prop = new Properties();
InputStream s = null;
try {
s = Version.class.getResourceAsStream("version.properties");
prop.load(s);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (s != null) {
try {
s.close();
} catch (IOException ex) {
}
}
}
version = prop.getProperty("atmosphere.version");
Matcher matcher = versionPattern.matcher(version);
if (matcher.matches()) {
dotedVersion = matcher.group(1);
major = Integer.parseInt(matcher.group(2));
minor = Integer.parseInt(matcher.group(3));
micro = Integer.parseInt(matcher.group(4));
} else {
dotedVersion = "no.version";
major = -1;
minor = -1;
micro = -1;
}
}
/**
* Return the raw version derived frok the project's pom.xml
*
* @return
*/
public static String getRawVersion() {
return version;
}
/**
* Return the dotted version of the curent release.
*
* @return like "2.0.1"
*/
public static String getDotedVersion() {
return dotedVersion;
}
/**
* Get Atmosphere framework major version
*
* @return Atmosphere framework major version
*/
public static int getMajorVersion() {
return major;
}
/**
* Get Atmosphere framework minor version
*
* @return Atmosphere framework minor version
*/
public static int getMinorVersion() {
return minor;
}
/**
* Return the micro version
*/
public static int getMicroVersion() {
return micro;
}
/**
* Checks if current Atmosphere framework version equals to one passed
*
* @param major Atmosphere framework major version
* @param minor Atmosphere framework minor version
* @return true, if versions are equal; false otherwise
*/
public static boolean equalVersion(int major, int minor) {
return minor == Version.minor && major == Version.major;
}
}