diff options
Diffstat (limited to 'bundles/org.eclipse.equinox.device/src/org/eclipse/equinox/device/DriverLocatorTracker.java')
| -rw-r--r-- | bundles/org.eclipse.equinox.device/src/org/eclipse/equinox/device/DriverLocatorTracker.java | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/bundles/org.eclipse.equinox.device/src/org/eclipse/equinox/device/DriverLocatorTracker.java b/bundles/org.eclipse.equinox.device/src/org/eclipse/equinox/device/DriverLocatorTracker.java deleted file mode 100644 index 45e83a190..000000000 --- a/bundles/org.eclipse.equinox.device/src/org/eclipse/equinox/device/DriverLocatorTracker.java +++ /dev/null @@ -1,344 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2007 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.equinox.device; - -import java.io.InputStream; -import java.util.Dictionary; -import java.util.Vector; -import org.eclipse.osgi.util.NLS; -import org.osgi.framework.*; -import org.osgi.service.device.DriverLocator; -import org.osgi.service.log.LogService; -import org.osgi.util.tracker.ServiceTracker; - -/** - * DriverLocatorTracker class. This class tracks all DriverLocator services. - * - */ -public class DriverLocatorTracker extends ServiceTracker { - protected final static String clazz = "org.osgi.service.device.DriverLocator"; //$NON-NLS-1$ - - /** DeviceManager object. */ - protected Activator manager; - - /** LogService object */ - protected LogService log; - - /** List of bundles to be uninstalled. */ - protected Vector bundles; - - /** - * Create the DriverLocatorTracker. - * - * @param context Device manager bundle context. - * @param log LogService object - */ - public DriverLocatorTracker(Activator manager) { - super(manager.context, clazz, null); - - this.manager = manager; - log = manager.log; - bundles = new Vector(10, 10); - - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, "DriverLocatorTracker constructor"); //$NON-NLS-1$ - } - - open(); - } - - /** - * A service is being added to the ServiceTracker. - * - * <p>This method is called before a service which matched - * the search parameters of the ServiceTracker is - * added to the ServiceTracker. This method should return the - * service object to be tracked for this ServiceReference. - * The returned service object is stored in the ServiceTracker - * and is available from the getService and getServices - * methods. - * - * @param reference Reference to service being added to the ServiceTracker. - * @return The service object to be tracked for the - * ServiceReference or <tt>null</tt> if the ServiceReference should not - * be tracked. - */ - public Object addingService(ServiceReference reference) { - if (Activator.DEBUG) { - log.log(reference, LogService.LOG_DEBUG, "DriverLocatorTracker adding service"); //$NON-NLS-1$ - } - - return (context.getService(reference)); - } - - /** - * A service tracked by the ServiceTracker has been modified. - * - * <p>This method is called when a service being tracked - * by the ServiceTracker has had it properties modified. - * - * @param reference Reference to service that has been modified. - * @param service The service object for the modified service. - */ - public void modifiedService(ServiceReference reference, Object service) { - //do nothing - } - - /** - * A service tracked by the ServiceTracker is being removed. - * - * <p>This method is called after a service is no longer being tracked - * by the ServiceTracker. - * - * @param reference Reference to service that has been removed. - * @param service The service object for the removed service. - */ - public void removedService(ServiceReference reference, Object object) { - if (Activator.DEBUG) { - log.log(reference, LogService.LOG_DEBUG, "DriverLocatorTracker removing service"); //$NON-NLS-1$ - } - - context.ungetService(reference); - } - - /** - * Call the DriverLocator services in an attempt to locate and - * install driver bundles to refine the device service. - * - * @param locators Array of DriverLocator objects - * @param drivers Dictionary of drivers with key=DRIVER_ID, value=Driver object - */ - public void loadDrivers(Dictionary properties, DriverTracker drivers) { - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocatorTracker loadDrivers called"); //$NON-NLS-1$ - } - - ServiceReference[] references = getServiceReferences(); - - if (references != null) { - int size = references.length; - - for (int i = 0; i < size; i++) { - ServiceReference locator = references[i]; - DriverLocator service = (DriverLocator) getService(locator); - - if (service != null) { - if (Activator.DEBUG) { - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator findDrivers called"); //$NON-NLS-1$ - } - - try { - String[] driver_ids = service.findDrivers(properties); - - if (Activator.DEBUG) { - int count = (driver_ids == null) ? 0 : driver_ids.length; - - StringBuffer sb = new StringBuffer(); - - sb.append('<'); - - for (int k = 0; k < count; k++) { - if (k > 0) { - sb.append(','); - } - sb.append(driver_ids[k]); - } - - sb.append('>'); - - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator findDrivers returned: " + sb); //$NON-NLS-1$ - } - - if (driver_ids != null) { - int count = driver_ids.length; - - for (int j = 0; j < count; j++) { - String driver_id = driver_ids[j]; - - if (drivers.getDriver(driver_id) == null) { - if (Activator.DEBUG) { - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator loadDriver called for driver: " + driver_id); //$NON-NLS-1$ - } - - try { - InputStream in = service.loadDriver(driver_id); - - if (Activator.DEBUG) { - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator loadDriver returned: " + in); //$NON-NLS-1$ - } - - installDriverBundle(driver_id, in); - } catch (Throwable t) { - log.log(locator, LogService.LOG_ERROR, NLS.bind(DeviceMsg.DriverLocator_unable_to_load_driver, driver_id), t); - } - } - } - } - } catch (Throwable t) { - log.log(locator, LogService.LOG_ERROR, DeviceMsg.DriverLocator_error_calling_findDrivers, t); - } - } - } - } - } - - /** - * Get an <code>InputStream</code> from which the driver bundle providing a driver with the giving ID can be installed. - * - * @param id the ID of the driver that needs to be installed. - * bundle can be installed - */ - - public void loadDriver(String driver_id, DriverTracker drivers) { - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocatorTracker loadDriver called for driver: " + driver_id); //$NON-NLS-1$ - } - - if (drivers.getDriver(driver_id) == null) { - ServiceReference[] references = getServiceReferences(); - - if (references != null) { - int size = references.length; - - for (int i = 0; i < size; i++) { - ServiceReference locator = references[i]; - DriverLocator service = (DriverLocator) getService(locator); - - if (service != null) { - if (Activator.DEBUG) { - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator loadDriver called for driver: " + driver_id); //$NON-NLS-1$ - } - - try { - InputStream in = service.loadDriver(driver_id); - - if (Activator.DEBUG) { - log.log(locator, LogService.LOG_DEBUG, Thread.currentThread().getName() + ": DriverLocator loadDriver returned: " + in); //$NON-NLS-1$ - } - - if (in != null) { - installDriverBundle(driver_id, in); - - break; - } - } catch (Throwable t) { - log.log(locator, LogService.LOG_ERROR, NLS.bind(DeviceMsg.DriverLocator_unable_to_load_driver, driver_id), t); - } - } - } - } - } - } - - /** - * Install a Driver bundle. - * - * @param driver_id DRIVER_ID for new driver bundle. - * @param in InputStream to a new driver bundle. - */ - public void installDriverBundle(String driver_id, InputStream in) { - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": installDriverBundle from InputStream: " + driver_id); //$NON-NLS-1$ - } - - if (in != null) { - Bundle bundle = null; - - try { - bundle = context.installBundle(driver_id, in); - /* installBundle will close the InputStream */ - - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": Driver bundle installed: " + driver_id); //$NON-NLS-1$ - } - - synchronized (bundles) { - if (!bundles.contains(bundle)) { - bundles.addElement(bundle); - } - } - - bundle.start(); - - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": Driver bundle started: " + driver_id); //$NON-NLS-1$ - } - } catch (BundleException e) { - log.log(LogService.LOG_ERROR, NLS.bind(DeviceMsg.Unable_to_install_or_start_driver_bundle, driver_id), e); - - if (bundle != null) { - bundles.removeElement(bundle); - - try { - bundle.uninstall(); - - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": Driver bundle uninstalled: " + driver_id); //$NON-NLS-1$ - } - } catch (BundleException ee) { - log.log(LogService.LOG_ERROR, NLS.bind(DeviceMsg.Unable_to_uninstall_driver_bundle_number, driver_id), ee); - } - - bundle = null; - } - } - } - } - - /** - * Remove bundle from uninstall list. - * - * @param bundle bundle to remove from list. - */ - public void usingDriverBundle(Bundle bundle) { - bundles.removeElement(bundle); - } - - /** - * Uninstall the recently installed but unused driver bundles. - * - */ - public void uninstallDriverBundles() { - int size; - Bundle[] uninstall = null; - - synchronized (bundles) { - size = bundles.size(); - - if (size > 0) { - uninstall = new Bundle[size]; - bundles.copyInto(uninstall); - } - } - - for (int i = 0; i < size; i++) { - Bundle bundle = uninstall[i]; - - if ((bundle.getState() & Bundle.UNINSTALLED) == 0) { /* if bundle not already uninstalled */ - try { - bundle.uninstall(); - - if (Activator.DEBUG) { - log.log(LogService.LOG_DEBUG, Thread.currentThread().getName() + ": Driver bundle uninstalled"); //$NON-NLS-1$ - } - } catch (BundleException ee) { - log.log(LogService.LOG_ERROR, NLS.bind(DeviceMsg.Unable_to_uninstall_driver_bundle, ee)); - } - } - } - - bundles.removeAllElements(); - } - - public boolean isUninstallCandidate(Bundle bundle) { - return bundles.contains(bundle); - } -} |