package com.jacob.samples.system;
import java.text.DecimalFormat;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
/**
* Example VB script that grabs hard drive properties.
* <p>
* Source Forge posting
* http://sourceforge.net/forum/forum.php?thread_id=1785936&forum_id=375946
* <p>
* Enhance by clay_shooter with info from
* http://msdn2.microsoft.com/en-us/library/d6dw7aeh.aspx
*
* @author qstephenson
*
*/
public class DiskUtils {
/** formatters aren't thread safe but the sample only has one thread */
private static DecimalFormat sizeFormatter = new DecimalFormat(
"###,###,###,###");
/** a pointer to the scripting file system object */
private ActiveXComponent fileSystemApp = null;
/** the dispatch that points at the drive this DiskUtil operates against */
private Dispatch myDrive = null;
/**
* Standard constructor
*
* @param drive
* the drive to run the test against.
*/
public DiskUtils(String drive) {
setUp(drive);
}
/**
* open the connection to the scripting object
*
* @param drive
* the drive to run the test against
*/
public void setUp(String drive) {
if (fileSystemApp == null) {
ComThread.InitSTA();
fileSystemApp = new ActiveXComponent("Scripting.FileSystemObject");
myDrive = Dispatch.call(fileSystemApp, "GetDrive", drive)
.toDispatch();
}
}
/**
* Do any needed cleanup
*/
public void tearDown() {
ComThread.Release();
}
/**
* convenience method
*
* @return driver serial number
*/
public int getSerialNumber() {
return Dispatch.get(myDrive, "SerialNumber").getInt();
}
/**
* Convenience method. We go through these formatting hoops so we can make
* the size string pretty. We wouldn't have to do that if we didn't mind
* long strings with Exxx at the end or the fact that the value returned can
* vary in size based on the size of the disk.
*
* @return driver total size of the disk
*/
public String getTotalSize() {
Variant returnValue = Dispatch.get(myDrive, "TotalSize");
if (returnValue.getvt() == Variant.VariantDouble) {
return sizeFormatter.format(returnValue.getDouble());
} else if (returnValue.getvt() == Variant.VariantInt) {
return sizeFormatter.format(returnValue.getInt());
} else {
return "Don't know type: " + returnValue.getvt();
}
}
/**
* Convenience method. We wouldn't have to do that if we didn't mind long
* strings with Exxx at the end or the fact that the value returned can vary
* in size based on the size of the disk.
*
* @return driver free size of the disk
*/
public String getFreeSpace() {
Variant returnValue = Dispatch.get(myDrive, "FreeSpace");
if (returnValue.getvt() == Variant.VariantDouble) {
return sizeFormatter.format(returnValue.getDouble());
} else if (returnValue.getvt() == Variant.VariantInt) {
return sizeFormatter.format(returnValue.getInt());
} else {
return "Don't know type: " + returnValue.getvt();
}
}
/**
*
* @return file system on the drive
*/
public String getFileSystemType() {
// figure ot the actual variant type
// Variant returnValue = Dispatch.get(myDrive, "FileSystem");
// System.out.println(returnValue.getvt());
return Dispatch.get(myDrive, "FileSystem").getString();
}
/**
*
* @return volume name
*/
public String getVolumeName() {
return Dispatch.get(myDrive, "VolumeName").getString();
}
/**
* Simple main program that creates a DiskUtils object and queries for the
* C: drive
*
* @param args
* standard command line arguments
*/
public static void main(String[] args) {
// DiskUtils utilConnection = new DiskUtils("F");
DiskUtils utilConnection = new DiskUtils("C");
System.out.println("Disk serial number is: "
+ utilConnection.getSerialNumber());
System.out.println("FileSystem is: "
+ utilConnection.getFileSystemType());
System.out.println("Volume Name is: " + utilConnection.getVolumeName());
System.out.println("Disk total size is: "
+ utilConnection.getTotalSize());
System.out.println("Disk free space is: "
+ utilConnection.getFreeSpace());
utilConnection.tearDown();
}
}