public long getFreeMemorySpace() throws JIException {
System.gc();
JIVariant results[] =
service_dispatch.callMethodA(
"ExecQuery",
new Object[] {
new JIString("select * from Win32_PerfRawData_PerfOS_Memory"),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM()
});
IJIDispatch wbemObjectSet_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject((results[0]).getObjectAsComObject());
JIVariant variant = wbemObjectSet_dispatch.get("_NewEnum");
IJIComObject object2 = variant.getObjectAsComObject();
IJIEnumVariant enumVARIANT =
(IJIEnumVariant) JIObjectFactory.narrowObject(object2.queryInterface(IJIEnumVariant.IID));
if (wbemObjectSet_dispatch.get("Count").getObjectAsInt() != 1)
return -1; // there should be 1 hint
JIArray array = (JIArray) enumVARIANT.next(1)[0];
JIVariant item = ((JIVariant[]) array.getArrayInstance())[0];
IJIDispatch wbemObject_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject(item.getObjectAsComObject());
return Long.parseLong(
wbemObject_dispatch.get("AvailableKBytes").getObjectAsString().getString());
}
/* FIXME: This code sometimes fails with an "org.jinterop.dcom.common.JIException: An internal error occurred. [0x8001FFFF]"
* on Windows 2008 */
public int getCPUUsage() throws JIException {
System.gc();
JIVariant results[] =
service_dispatch.callMethodA(
"Get",
new Object[] {
new JIString("Win32_PerfRawData_PerfOS_Processor.Name='_Total'"),
new Integer(0),
JIVariant.OPTIONAL_PARAM()
});
IJIDispatch wbemObject_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject((results[0]).getObjectAsComObject());
long ppt =
Long.parseLong(
wbemObject_dispatch.get("PercentProcessorTime").getObjectAsString().getString());
long tss =
Long.parseLong(
wbemObject_dispatch.get("TimeStamp_Sys100NS").getObjectAsString().getString());
if (this.percentprocessortime == -1 && this.timestamp == -1) {
this.percentprocessortime = ppt;
this.timestamp = tss;
return -1;
}
double load =
(1 - ((double) (this.percentprocessortime - ppt) / (double) (this.timestamp - tss))) * 100;
this.percentprocessortime = ppt;
this.timestamp = tss;
return (int) Math.round(load);
}
public LinkedList<IJIDispatch> getDiskDrives() throws JIException {
System.gc();
// get all local disks
JIVariant results[] =
service_dispatch.callMethodA(
"ExecQuery",
new Object[] {
new JIString("select * from Win32_LogicalDisk where DriveType = 3"),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM()
});
IJIDispatch wbemObjectSet_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject((results[0]).getObjectAsComObject());
JIVariant variant = wbemObjectSet_dispatch.get("_NewEnum");
IJIComObject object2 = variant.getObjectAsComObject();
IJIEnumVariant enumVARIANT =
(IJIEnumVariant) JIObjectFactory.narrowObject(object2.queryInterface(IJIEnumVariant.IID));
LinkedList<IJIDispatch> drives = new LinkedList<IJIDispatch>();
int count = wbemObjectSet_dispatch.get("Count").getObjectAsInt();
for (int i = 0; i < count; i++) {
Object[] values = enumVARIANT.next(1);
JIArray array = (JIArray) values[0];
JIVariant[] variants = (JIVariant[]) array.getArrayInstance();
for (JIVariant item : variants) {
drives.add((IJIDispatch) JIObjectFactory.narrowObject(item.getObjectAsComObject()));
}
}
return drives;
}
public LinkedList<IJIDispatch> getServices() throws JIException {
System.gc();
// get all services which should start automatically but are not running
JIVariant results[] =
service_dispatch.callMethodA(
"ExecQuery",
new Object[] {
new JIString(
"select * from Win32_Service where StartMode = 'Auto' and Started = FALSE"),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM(),
JIVariant.OPTIONAL_PARAM()
});
IJIDispatch wbemObjectSet_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject((results[0]).getObjectAsComObject());
JIVariant variant = wbemObjectSet_dispatch.get("_NewEnum");
IJIComObject object2 = variant.getObjectAsComObject();
IJIEnumVariant enumVARIANT =
(IJIEnumVariant) JIObjectFactory.narrowObject(object2.queryInterface(IJIEnumVariant.IID));
LinkedList<IJIDispatch> services = new LinkedList<IJIDispatch>();
int count = wbemObjectSet_dispatch.get("Count").getObjectAsInt();
for (int i = 0; i < count; i++) {
Object[] values = enumVARIANT.next(1);
JIArray array = (JIArray) values[0];
JIVariant[] variants = (JIVariant[]) array.getArrayInstance();
for (JIVariant item : variants) {
IJIDispatch wbemObject_dispatch =
(IJIDispatch) JIObjectFactory.narrowObject(item.getObjectAsComObject());
services.add(wbemObject_dispatch);
}
}
return services;
}
