ContentProviderNativepublic abstract class ContentProviderNative extends android.os.Binder implements IContentProvider
| Constructors Summary |
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public ContentProviderNative()
attachInterface(this, descriptor);
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| Methods Summary |
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| public android.os.IBinder | asBinder()
return this;
| | public static IContentProvider | asInterface(android.os.IBinder obj)Cast a Binder object into a content resolver interface, generating
a proxy if needed.
if (obj == null) {
return null;
}
IContentProvider in =
(IContentProvider)obj.queryLocalInterface(descriptor);
if (in != null) {
return in;
}
return new ContentProviderProxy(obj);
| | public abstract java.lang.String | getProviderName()Gets the name of the content provider.
Should probably be part of the {@link IContentProvider} interface.
| | public boolean | onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags)
try {
switch (code) {
case QUERY_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
// String[] projection
int num = data.readInt();
String[] projection = null;
if (num > 0) {
projection = new String[num];
for (int i = 0; i < num; i++) {
projection[i] = data.readString();
}
}
// String selection, String[] selectionArgs...
String selection = data.readString();
num = data.readInt();
String[] selectionArgs = null;
if (num > 0) {
selectionArgs = new String[num];
for (int i = 0; i < num; i++) {
selectionArgs[i] = data.readString();
}
}
String sortOrder = data.readString();
IContentObserver observer = IContentObserver.Stub.asInterface(
data.readStrongBinder());
ICancellationSignal cancellationSignal = ICancellationSignal.Stub.asInterface(
data.readStrongBinder());
Cursor cursor = query(callingPkg, url, projection, selection, selectionArgs,
sortOrder, cancellationSignal);
if (cursor != null) {
CursorToBulkCursorAdaptor adaptor = null;
try {
adaptor = new CursorToBulkCursorAdaptor(cursor, observer,
getProviderName());
cursor = null;
BulkCursorDescriptor d = adaptor.getBulkCursorDescriptor();
adaptor = null;
reply.writeNoException();
reply.writeInt(1);
d.writeToParcel(reply, Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} finally {
// Close cursor if an exception was thrown while constructing the adaptor.
if (adaptor != null) {
adaptor.close();
}
if (cursor != null) {
cursor.close();
}
}
} else {
reply.writeNoException();
reply.writeInt(0);
}
return true;
}
case GET_TYPE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String type = getType(url);
reply.writeNoException();
reply.writeString(type);
return true;
}
case INSERT_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues values = ContentValues.CREATOR.createFromParcel(data);
Uri out = insert(callingPkg, url, values);
reply.writeNoException();
Uri.writeToParcel(reply, out);
return true;
}
case BULK_INSERT_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues[] values = data.createTypedArray(ContentValues.CREATOR);
int count = bulkInsert(callingPkg, url, values);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case APPLY_BATCH_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
final int numOperations = data.readInt();
final ArrayList<ContentProviderOperation> operations =
new ArrayList<ContentProviderOperation>(numOperations);
for (int i = 0; i < numOperations; i++) {
operations.add(i, ContentProviderOperation.CREATOR.createFromParcel(data));
}
final ContentProviderResult[] results = applyBatch(callingPkg, operations);
reply.writeNoException();
reply.writeTypedArray(results, 0);
return true;
}
case DELETE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
String selection = data.readString();
String[] selectionArgs = data.readStringArray();
int count = delete(callingPkg, url, selection, selectionArgs);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case UPDATE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
ContentValues values = ContentValues.CREATOR.createFromParcel(data);
String selection = data.readString();
String[] selectionArgs = data.readStringArray();
int count = update(callingPkg, url, values, selection, selectionArgs);
reply.writeNoException();
reply.writeInt(count);
return true;
}
case OPEN_FILE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
String mode = data.readString();
ICancellationSignal signal = ICancellationSignal.Stub.asInterface(
data.readStrongBinder());
IBinder callerToken = data.readStrongBinder();
ParcelFileDescriptor fd;
fd = openFile(callingPkg, url, mode, signal, callerToken);
reply.writeNoException();
if (fd != null) {
reply.writeInt(1);
fd.writeToParcel(reply,
Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} else {
reply.writeInt(0);
}
return true;
}
case OPEN_ASSET_FILE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
String mode = data.readString();
ICancellationSignal signal = ICancellationSignal.Stub.asInterface(
data.readStrongBinder());
AssetFileDescriptor fd;
fd = openAssetFile(callingPkg, url, mode, signal);
reply.writeNoException();
if (fd != null) {
reply.writeInt(1);
fd.writeToParcel(reply,
Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} else {
reply.writeInt(0);
}
return true;
}
case CALL_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
String method = data.readString();
String stringArg = data.readString();
Bundle args = data.readBundle();
Bundle responseBundle = call(callingPkg, method, stringArg, args);
reply.writeNoException();
reply.writeBundle(responseBundle);
return true;
}
case GET_STREAM_TYPES_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
Uri url = Uri.CREATOR.createFromParcel(data);
String mimeTypeFilter = data.readString();
String[] types = getStreamTypes(url, mimeTypeFilter);
reply.writeNoException();
reply.writeStringArray(types);
return true;
}
case OPEN_TYPED_ASSET_FILE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
String mimeType = data.readString();
Bundle opts = data.readBundle();
ICancellationSignal signal = ICancellationSignal.Stub.asInterface(
data.readStrongBinder());
AssetFileDescriptor fd;
fd = openTypedAssetFile(callingPkg, url, mimeType, opts, signal);
reply.writeNoException();
if (fd != null) {
reply.writeInt(1);
fd.writeToParcel(reply,
Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
} else {
reply.writeInt(0);
}
return true;
}
case CREATE_CANCELATION_SIGNAL_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
ICancellationSignal cancellationSignal = createCancellationSignal();
reply.writeNoException();
reply.writeStrongBinder(cancellationSignal.asBinder());
return true;
}
case CANONICALIZE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
Uri out = canonicalize(callingPkg, url);
reply.writeNoException();
Uri.writeToParcel(reply, out);
return true;
}
case UNCANONICALIZE_TRANSACTION:
{
data.enforceInterface(IContentProvider.descriptor);
String callingPkg = data.readString();
Uri url = Uri.CREATOR.createFromParcel(data);
Uri out = uncanonicalize(callingPkg, url);
reply.writeNoException();
Uri.writeToParcel(reply, out);
return true;
}
}
} catch (Exception e) {
DatabaseUtils.writeExceptionToParcel(reply, e);
return true;
}
return super.onTransact(code, data, reply, flags);
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