所以你有三个模块:应用程序、库和服务。
您需要通过模块名称获取描述符,然后获取进程ID。
更新1
String moduleName = "application";
int handle = CodeModuleManager.getModuleHandle(moduleName);
ApplicationDescriptor[] descriptors = CodeModuleManager
.getApplicationDescriptors(handle);
if (descriptors.length > 0 && descriptors[0] != null) {
ApplicationManager.getApplicationManager().getProcessId(descriptors[0]);
}
然后,要记录哪个模块使用库,请使用
Application.getApplication().getProcessId();
内部库方法。我认为最好在库中实现日志记录。
当您从库代码中获得应用程序的进程 id 时,您可以将其与通过模块名称找到的 id 进行比较,然后您将知道哪个模块使用了库代码。
UPDATE2
alt text http://img138.imageshack.us/img138/23/eventlog.jpg
库模块代码:
package library;
import net.rim.device.api.system.Application;
import net.rim.device.api.system.ApplicationDescriptor;
import net.rim.device.api.system.ApplicationManager;
import net.rim.device.api.system.CodeModuleManager;
import net.rim.device.api.system.EventLogger;
public class Logger {
// "AppLibSrvc" converted to long
long guid = 0xd4b6b5eeea339daL;
public Logger() {
EventLogger.register(guid, "AppLibSrvc", EventLogger.VIEWER_STRING);
}
public void log(String message) {
EventLogger.logEvent(guid, message.getBytes());
}
public void call() {
log("Library is used by " + getModuleName());
}
private String getModuleName() {
String moduleName = "";
String appModuleName = "application";
int appProcessId = getProcessIdByName(appModuleName);
String srvcModuleName = "service";
int srvcProcessId = getProcessIdByName(srvcModuleName);
int processId = Application.getApplication().getProcessId();
if (appProcessId == processId)
moduleName = appModuleName;
else if (srvcProcessId == processId)
moduleName = srvcModuleName;
return moduleName;
}
protected int getProcessIdByName(String moduleName) {
int processId = -1;
int handle = CodeModuleManager.getModuleHandle(moduleName);
ApplicationDescriptor[] descriptors = CodeModuleManager
.getApplicationDescriptors(handle);
if (descriptors.length > 0 && descriptors[0] != null) {
processId = ApplicationManager.getApplicationManager()
.getProcessId(descriptors[0]);
}
return processId;
}
}
应用模块代码:
package application;
import java.util.Timer;
import java.util.TimerTask;
import library.Logger;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.container.MainScreen;
public class App extends UiApplication {
public App() {
pushScreen(new Scr());
}
public static void main(String[] args) {
App app = new App();
app.enterEventDispatcher();
}
}
class Scr extends MainScreen {
public Scr() {
Timer timer = new Timer();
TimerTask task = new TimerTask() {
public void run() {
Logger logger = new Logger();
logger.call();
}
};
timer.schedule(task, 3000, 3000);
}
}
服务模块代码:
package service;
import java.util.Timer;
import java.util.TimerTask;
import library.Logger;
import net.rim.device.api.system.Application;
public class App extends Application {
public App() {
Timer timer = new Timer();
TimerTask task = new TimerTask() {
public void run() {
Logger logger = new Logger();
logger.call();
}
};
timer.schedule(task, 3000, 3000);
}
public static void main(String[] args) {
App app = new App();
app.enterEventDispatcher();
}
}