SystemInfo.java :  » Portal » stringbeans-3.5 » com » nabhinc » util » info » Java Open Source

/*
 * (C) Copyright 2004 Nabh Information Systems, Inc.
 *
 * All copyright notices regarding Nabh's products MUST remain
 * intact in the scripts and in the outputted HTML.
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.nabhinc.util.info;

/**
 *
 *
 * @author Padmanabh Dabke
 * (c) 2004 Nabh Information Systems, Inc. All Rights Reserved.
 */
public class SystemInfo {

    private String siVMName = null;
    private String siVMVendor = null;
    private String siVMVersion = null;
    private String siVMModeInfo = null;
    private String siVMSpecName = null;
    private String siVMSpecVendor = null;
    private String siJavaSpecVersion = null;
    private String siRTName = null;
    private String siRTVersion = null;
    private String siOSName = null;
    private String siOSVersion = null;
    private String siCPU = null;
    private String siByteOrder = null;
    private String siTimeZone = null;
    private String siDefaultLang = null;

    long siTotalMemory    = 0;
    long siFreeMemory     = 0;

    public SystemInfo() {
        siVMName          = getPropertyValue("java.vm.name");
        siVMVendor        = getPropertyValue("java.vm.vendor");
        siVMVersion       = getPropertyValue("java.vm.version");
        siVMModeInfo       = getPropertyValue("java.vm.info");
        siVMSpecName     = getPropertyValue("java.vm.specification.name");
        siVMSpecVendor    = getPropertyValue("java.vm.specification.vendor");
        siJavaSpecVersion   = getPropertyValue("java.specification.version");
        siRTName         = getPropertyValue("java.runtime.name");
        siRTVersion      = getPropertyValue("java.runtime.version");
        siOSName          = getPropertyValue("os.name");
        siOSVersion       = getPropertyValue("os.version");
        siCPU             = getPropertyValue("sun.cpu.isalist");
        siByteOrder      = getPropertyValue("sun.cpu.endian");
        siTimeZone      = getPropertyValue("user.timezone");
    siDefaultLang    = getPropertyValue("user.language");

        Runtime rt = Runtime.getRuntime();
        siTotalMemory   = rt.totalMemory();
        siFreeMemory    = rt.freeMemory();
    }

    public static String getPropertyValue(String key) {
        String propValue = null;
        try {
          propValue = System.getProperty(key, "");
        } catch (NullPointerException ne) { 
          propValue = "not available";
        } catch (IllegalArgumentException ie) {
          propValue = "";
        }catch (SecurityException ex) {
          propValue = "can not be displayed";
        }
        return propValue;
    }

    public String getCPUInfo() {
        return siCPU;
    }

    public String getOSName() {
        return siOSName;
    }

    public String getOSVersion() {
        return siOSVersion;
    }

    public String getVMRuntimeName() {
        return siRTName;
    }

    public String getVMRuntimeVersion() {
        return siRTVersion;
    }

    public String getVMName() {
        return siVMName;
    }

    public String getVMVendor() {
        return siVMVendor;
    }

    public String getVMSpecificationName() {
      return siVMSpecName;
    }
    
    public String getVMSpecificationVendor() {
      return siVMSpecVendor;
    }
    
    public String getVMVersion() {
        return siVMVersion;
    }

    public String getVMModeInfo() {
      return siVMModeInfo;
    }
    
    public String getJavaSpecificationVersion() {
      return siJavaSpecVersion;
    }
    
    public long getFreeMemory() {
        return siFreeMemory;
    }

    public long getFreeMemoryKB() {
        return siFreeMemory/1024;
    }
    
    public long getFreeMemoryMB() {
      return siFreeMemory/(1024 * 1024);
    }

    public long getTotalMemory() {
        return siTotalMemory;
    }

    public long getTotalMemoryKB() {
        return siTotalMemory/1024;
    }
    
    public long getTotalMemoryMB() {
      return siTotalMemory/(1024 * 1024);
    }
    
    public String getEndianInfo() {
      return siByteOrder;
    }
    
    public String getTimeZone() {
      return siTimeZone;
    }
    
    public String getDefaultLanguage() {
      return siDefaultLang;
    }
}