[android-developers] java.lang.IllegalArgumentException: Unknown URL content://org.books/books

Wrote the following code to insert an item into sqlite database

public static final String PROVIDER_NAME = "org.books";
public static final Uri CONTENT_URI =
Uri.parse("content://"+ PROVIDER_NAME + "/books");
private static final String DATABASE_TABLE = "titles";

public Uri insert(Uri uri, ContentValues values) {
//---add a new book---
long rowID = booksDB.insert(
DATABASE_TABLE, "", values);

//---if added successfully---
if (rowID>0)
{
Uri _uri = ContentUris.withAppendedId(CONTENT_URI, rowID);
getContext().getContentResolver().notifyChange(_uri, null);
return _uri;
}
throw new SQLException("Failed to insert row into " + uri);
}

ContentValues values = new ContentValues();

Uri uri = getContentResolver().insert(
Uri.parse(
"content://org.books/books"),
values);
I am getting the following error. Is my URL format correct?

07-22 17:56:59.479: ERROR/AndroidRuntime(4926): Caused by:
java.lang.IllegalArgumentException: Unknown URL content://org.books/books
07-22 17:56:59.479: ERROR/AndroidRuntime(4926): at
android.content.ContentResolver.insert(ContentResolver.java:626)

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