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Network Location unbundling:

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The network location and geocode provider services are now started on demand
and their interfaces are now retrieved via bindService().

Remove obsolete LocationManager installLocationProvider() and installGeocodeProvider() methods.

Add abstract class android.location.provider.GeocodeProvider to provide a public wrapper to
the IGeocodeProvider Binder interface. Replaces the LocationManager.GeocodeProvider interface.

Rename LocationProviderImpl to android.location.provider.LocationProvider.

Move LocationManager.reportLocation() to android.location.provider.LocationProvider,
so all methods related to external location providers are now all in one class.

Avoid calling from the Location Manager Service into providers that are disabled so we
do not start the network location service unnecessarily.

Change-Id: If3ed2d5d62b83ba508006711d575cad09f4a0007
Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood
2010-01-25 22:46:13 -05:00
parent 53bd2522ca
commit 628fd6d9c1
9 changed files with 790 additions and 777 deletions
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96
services/java/com/android/server/LocationManagerService.java
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@@ -29,16 +29,18 @@ import java.util.Set;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentQueryMap;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.database.Cursor;
import android.location.Address;
import android.location.GeocoderParams;
import android.location.IGeocodeProvider;
import android.location.IGpsStatusListener;
import android.location.IGpsStatusProvider;
import android.location.ILocationListener;
@@ -64,10 +66,11 @@ import android.provider.Settings;
import android.util.Log;
import android.util.PrintWriterPrinter;
import com.android.internal.location.GeocoderProxy;
import com.android.internal.location.GpsLocationProvider;
import com.android.internal.location.GpsNetInitiatedHandler;
import com.android.internal.location.LocationProviderProxy;
import com.android.internal.location.MockProvider;
import com.android.internal.location.GpsNetInitiatedHandler;
/**
* The service class that manages LocationProviders and issues location
@@ -105,7 +108,7 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
private static boolean sProvidersLoaded = false;
private final Context mContext;
private IGeocodeProvider mGeocodeProvider;
private GeocoderProxy mGeocodeProvider;
private IGpsStatusProvider mGpsStatusProvider;
private INetInitiatedListener mNetInitiatedListener;
private LocationWorkerHandler mLocationHandler;
@@ -415,7 +418,6 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
private void removeProvider(LocationProviderProxy provider) {
mProviders.remove(provider);
provider.unlinkProvider();
mProvidersByName.remove(provider.getName());
}
@@ -446,11 +448,28 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
GpsLocationProvider provider = new GpsLocationProvider(mContext, this);
mGpsStatusProvider = provider.getGpsStatusProvider();
mNetInitiatedListener = provider.getNetInitiatedListener();
LocationProviderProxy proxy = new LocationProviderProxy(LocationManager.GPS_PROVIDER, provider);
LocationProviderProxy proxy =
new LocationProviderProxy(mContext, LocationManager.GPS_PROVIDER, provider);
addProvider(proxy);
mGpsLocationProvider = proxy;
}
// initialize external network location and geocoder services
Resources resources = mContext.getResources();
String serviceName = resources.getString(
com.android.internal.R.string.config_networkLocationProvider);
if (serviceName != null) {
mNetworkLocationProvider =
new LocationProviderProxy(mContext, LocationManager.NETWORK_PROVIDER,
serviceName, mLocationHandler);
addProvider(mNetworkLocationProvider);
}
serviceName = resources.getString(com.android.internal.R.string.config_geocodeProvider);
if (serviceName != null) {
mGeocodeProvider = new GeocoderProxy(mContext, serviceName);
}
updateProvidersLocked();
}
@@ -507,45 +526,6 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
Looper.loop();
}
public void installLocationProvider(String name, ILocationProvider provider) {
if (mContext.checkCallingOrSelfPermission(INSTALL_LOCATION_PROVIDER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires INSTALL_LOCATION_PROVIDER permission");
}
synchronized (mLock) {
// check to see if we are reinstalling a dead provider
LocationProviderProxy oldProvider = mProvidersByName.get(name);
if (oldProvider != null) {
if (oldProvider.isDead()) {
Log.d(TAG, "replacing dead provider");
removeProvider(oldProvider);
} else {
throw new IllegalArgumentException("Provider \"" + name + "\" already exists");
}
}
LocationProviderProxy proxy = new LocationProviderProxy(name, provider);
addProvider(proxy);
updateProvidersLocked();
if (LocationManager.NETWORK_PROVIDER.equals(name)) {
mNetworkLocationProvider = proxy;
}
// notify provider of current network state
proxy.updateNetworkState(mNetworkState, null);
}
}
public void installGeocodeProvider(IGeocodeProvider provider) {
if (mContext.checkCallingOrSelfPermission(INSTALL_LOCATION_PROVIDER)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("Requires INSTALL_LOCATION_PROVIDER permission");
}
mGeocodeProvider = provider;
}
private boolean isAllowedBySettingsLocked(String provider) {
if (mEnabledProviders.contains(provider)) {
return true;
@@ -1313,7 +1293,7 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
}
/**
* @return null if the provider does not exits
* @return null if the provider does not exist
* @throws SecurityException if the provider is not allowed to be
* accessed by the caller
*/
@@ -1332,7 +1312,7 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
private Bundle _getProviderInfoLocked(String provider) {
LocationProviderProxy p = mProvidersByName.get(provider);
if (p == null) {
if (p == null || !p.isEnabled()) {
return null;
}
@@ -1618,7 +1598,7 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
synchronized (mLock) {
for (int i = mProviders.size() - 1; i >= 0; i--) {
LocationProviderProxy provider = mProviders.get(i);
if (provider.requiresNetwork()) {
if (provider.isEnabled() && provider.requiresNetwork()) {
provider.updateNetworkState(mNetworkState, info);
}
}
@@ -1669,13 +1649,8 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
public String getFromLocation(double latitude, double longitude, int maxResults,
GeocoderParams params, List<Address> addrs) {
if (mGeocodeProvider != null) {
try {
return mGeocodeProvider.getFromLocation(latitude, longitude, maxResults,
params, addrs);
} catch (RemoteException e) {
Log.e(TAG, "getFromLocation failed", e);
mGeocodeProvider = null;
}
return mGeocodeProvider.getFromLocation(latitude, longitude, maxResults,
params, addrs);
}
return null;
}
@@ -1687,14 +1662,9 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
GeocoderParams params, List<Address> addrs) {
if (mGeocodeProvider != null) {
try {
return mGeocodeProvider.getFromLocationName(locationName, lowerLeftLatitude,
lowerLeftLongitude, upperRightLatitude, upperRightLongitude,
maxResults, params, addrs);
} catch (RemoteException e) {
Log.e(TAG, "getFromLocationName failed", e);
mGeocodeProvider = null;
}
return mGeocodeProvider.getFromLocationName(locationName, lowerLeftLatitude,
lowerLeftLongitude, upperRightLatitude, upperRightLongitude,
maxResults, params, addrs);
}
return null;
}
@@ -1737,7 +1707,7 @@ public class LocationManagerService extends ILocationManager.Stub implements Run
if (mProvidersByName.get(name) != null) {
throw new IllegalArgumentException("Provider \"" + name + "\" already exists");
}
addProvider(new LocationProviderProxy(name, provider));
addProvider(new LocationProviderProxy(mContext, name, provider));
mMockProviders.put(name, provider);
mLastKnownLocation.put(name, null);
updateProvidersLocked();