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Java Utils collections, development by Nervousync Studio (NSYC)
/*
* Licensed to the Nervousync Studio (NSYC) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 com.nervousync.utils;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.nervousync.commons.beans.network.NetworkInfo;
import com.nervousync.exceptions.beans.network.NetworkInfoException;
/**
* @author Steven Wee [email protected]
* @version $Revision: 1.0 $ $Date: Jul 24, 2015 11:43:24 AM $
*/
public final class SystemUtils {
private static final Logger LOGGER = LoggerFactory.getLogger(SystemUtils.class);
public static final String OPERATE_SYSTEM_NAME = System.getProperty("os.name");
public static final String OPERATE_SYSTEM_VERSION = System.getProperty("os.version");
public static final String JAVA_HOME = System.getProperty("java.home");
public static final String JAVA_VERSION = System.getProperty("java.version");
public static final String JAVA_TMP_DIR = System.getProperty("java.io.tmpdir");
public static final String USER_NAME = System.getProperty("user.name");
public static final String USER_HOME = System.getProperty("user.home");
public static final String USER_DIR = System.getProperty("user.dir");
private static final String IDENTIFIED_KEY = SystemUtils.generateIdentifiedKey();
/**
* Constant identifying the 1.3.x JVM (JDK 1.3).
*/
public static final int JAVA_13 = 0;
/**
* Constant identifying the 1.4.x JVM (J2SE 1.4).
*/
public static final int JAVA_14 = 1;
/**
* Constant identifying the 1.5 JVM (Java 5).
*/
public static final int JAVA_15 = 2;
/**
* Constant identifying the 1.6 JVM (Java 6).
*/
public static final int JAVA_16 = 3;
/**
* Constant identifying the 1.7 JVM (Java 7).
*/
public static final int JAVA_17 = 4;
/**
* Constant identifying the 1.8 JVM (Java 8).
*/
public static final int JAVA_18 = 5;
/**
* Constant identifying the 1.9 JVM (Java 9).
*/
public static final int JAVA_19 = 6;
private static final String JAVA_VBERSION;
private static final int MAJOR_VERSION;
static {
JAVA_VBERSION = System.getProperty("java.version");
// version String should look like "1.4.2_10"
if (JAVA_VBERSION.indexOf("1.9.") != -1) {
MAJOR_VERSION = JAVA_19;
} else if (JAVA_VBERSION.indexOf("1.8.") != -1) {
MAJOR_VERSION = JAVA_18;
} else if (JAVA_VBERSION.indexOf("1.7.") != -1) {
MAJOR_VERSION = JAVA_17;
} else if (JAVA_VBERSION.indexOf("1.6.") != -1) {
MAJOR_VERSION = JAVA_16;
} else if (JAVA_VBERSION.indexOf("1.5.") != -1) {
MAJOR_VERSION = JAVA_15;
} else {
// else leave 1.4 as default (it's either 1.4 or unknown)
MAJOR_VERSION = JAVA_14;
}
}
private SystemUtils() {
}
public static String identifiedKey() {
return IDENTIFIED_KEY;
}
public static boolean isWindows() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("windows") > 0;
}
public static boolean isUnix() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("unix") > 0;
}
public static boolean isLinux() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("linux") > 0;
}
public static boolean isMacOS() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("mac os") > 0;
}
public static boolean isMacOSX() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("mac os x") > 0;
}
public static boolean isOS2() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("os/2") > 0;
}
public static boolean isSolaris() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("solaris") > 0;
}
public static boolean isSunOS() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("sunos") > 0;
}
public static boolean isMPEiX() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("mpe/ix") > 0;
}
public static boolean isHPUX() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("hp-ux") > 0;
}
public static boolean isAIX() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("aix") > 0;
}
public static boolean isOS390() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("os/390") > 0;
}
public static boolean isFreeBSD() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("freebsd") > 0;
}
public static boolean isIrix() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("irix") > 0;
}
public static boolean isDigitalUnix() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("digital unix") > 0;
}
public static boolean isNetware() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("netware") > 0;
}
public static boolean isOSF1() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("osf1") > 0;
}
public static boolean isOpenVMS() {
return OPERATE_SYSTEM_NAME.toLowerCase().indexOf("openvms") > 0;
}
/**
* Return the full Java version string, as returned by
* System.getProperty("java.version").
* @return the full Java version string
* @see System#getProperty(String)
*/
public static String getJavaVbersion() {
return JAVA_VBERSION;
}
/**
* Get the major version code. This means we can do things like
* if (getMajorJavaVersion() < JAVA_14).
* @return a code comparable to the JAVA_XX codes in this class
* @see #JAVA_13
* @see #JAVA_14
* @see #JAVA_15
* @see #JAVA_16
* @see #JAVA_17
* @see #JAVA_18
*/
public static int getMajorVersion() {
return MAJOR_VERSION;
}
/**
* Convenience method to determine if the current JVM is at least Java 1.4.
* @return true if the current JVM is at least Java 1.4
* @see #getMajorVersion()
* @see #JAVA_14
* @see #JAVA_15
* @see #JAVA_16
* @see #JAVA_17
* @see #JAVA_18
*/
public static boolean isAtLeastJava14() {
return true;
}
/**
* Convenience method to determine if the current JVM is at least
* Java 1.5 (Java 5).
* @return true if the current JVM is at least Java 1.5
* @see #getMajorVersion()
* @see #JAVA_15
* @see #JAVA_16
* @see #JAVA_17
* @see #JAVA_18
*/
public static boolean isAtLeastJava15() {
return getMajorVersion() >= JAVA_15;
}
/**
* Convenience method to determine if the current JVM is at least
* Java 1.6 (Java 6).
* @return true if the current JVM is at least Java 1.6
* @see #getMajorVersion()
* @see #JAVA_16
* @see #JAVA_17
* @see #JAVA_18
*/
public static boolean isAtLeastJava16() {
return getMajorVersion() >= JAVA_16;
}
/**
* Convenience method to determine if the current JVM is at least
* Java 1.7 (Java 7).
* @return true if the current JVM is at least Java 1.7
* @see #getMajorVersion()
* @see #JAVA_17
* @see #JAVA_18
*/
public static boolean isAtLeastJava17() {
return getMajorVersion() >= JAVA_17;
}
/**
* Convenience method to determine if the current JVM is at least
* Java 1.8 (Java 8).
* @return true if the current JVM is at least Java 1.8
* @see #getMajorVersion()
* @see #JAVA_18
*/
public static boolean isAtLeastJava18() {
return getMajorVersion() >= JAVA_18;
}
/**
* Convenience method to determine if the current JVM is at least
* Java 1.9 (Java 9).
* @return true if the current JVM is at least Java 1.9
* @see #getMajorVersion()
* @see #JAVA_19
*/
public static boolean isAtLeastJava19() {
return getMajorVersion() >= JAVA_19;
}
private static String generateIdentifiedKey() {
try {
List networkInfos = retrieveNetworkInfos();
List macAddrList = new ArrayList();
for (NetworkInfo networkInfo : networkInfos) {
if (!networkInfo.isVirtual() && networkInfo.getMacAddress().length() > 0
&& !macAddrList.contains(networkInfo.getMacAddress())) {
macAddrList.add(networkInfo.getMacAddress());
}
}
Collections.sort(macAddrList);
return SecurityUtils.MD5(macAddrList);
} catch (Exception e) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Generate identified key error!", e);
}
}
return null;
}
private static List retrieveNetworkInfos() throws SocketException {
List networkInfos = new ArrayList();
Enumeration enumeration = NetworkInterface.getNetworkInterfaces();
while (enumeration.hasMoreElements()) {
try {
NetworkInfo networkInfo = new NetworkInfo(enumeration.nextElement());
networkInfos.add(networkInfo);
} catch (NetworkInfoException e) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Retrieve network info error!", e);
}
continue;
}
}
return networkInfos;
}
}