/**
* Returns an ArrayList containing all the Addresses stored in the application's database
*
* @return An ArrayList containing one Address object for each record in the Addresses table.
*/
public ArrayList<Address> getAllAddresses() {
ArrayList<Address> addresses = new ArrayList<Address>();
// Specify which columns from the table we are interested in
String[] projection = {
AddressesTable.COLUMN_ID,
AddressesTable.COLUMN_CORRESPONDING_PUBKEY_ID,
AddressesTable.COLUMN_LABEL,
AddressesTable.COLUMN_ADDRESS,
AddressesTable.COLUMN_PRIVATE_SIGNING_KEY,
AddressesTable.COLUMN_PRIVATE_ENCRYPTION_KEY,
AddressesTable.COLUMN_RIPE_HASH,
AddressesTable.COLUMN_TAG
};
// Query the database via the ContentProvider
Cursor cursor =
mContentResolver.query(
DatabaseContentProvider.CONTENT_URI_ADDRESSES, projection, null, null, null);
if (cursor.moveToFirst()) {
do {
long id = cursor.getLong(0);
long correspondingPubkeyId = cursor.getLong(1);
String label = cursor.getString(2);
String address = cursor.getString(3);
String privateSigningKey = cursor.getString(4);
String privateEncryptionKey = cursor.getString(5);
byte[] ripeHash = Base64.decode(cursor.getString(6), Base64.DEFAULT);
byte[] tag = Base64.decode(cursor.getString(7), Base64.DEFAULT);
Address a = new Address();
a.setId(id);
a.setCorrespondingPubkeyId(correspondingPubkeyId);
a.setLabel(label);
a.setAddress(address);
a.setPrivateSigningKey(privateSigningKey);
a.setPrivateEncryptionKey(privateEncryptionKey);
a.setRipeHash(ripeHash);
a.setTag(tag);
addresses.add(a);
} while (cursor.moveToNext());
}
cursor.close();
return addresses;
}
/**
* Finds all Addresses in the application's database that match the given field
*
* @param columnName - A String specifying the name of the column in the database that should be
* used to find matching records. See the AddressesTable class to find the relevant column
* name.
* @param searchString - A String specifying the value to search for. There are 4 use cases for
* this:<br>
* 1) The value to search for is a String (e.g. A label from the UI). In this case the value
* can be passed in directly.<br>
* 2) The value to search for is an int or long. In this case you should use String.valueOf(x)
* and pass in the resulting String.<br>
* 3) The value to search for is a boolean. In this case you should pass in the String "0" for
* false or the String "1" for true. <br>
* 4) The value to search for is a byte[]. In this case you should encode the byte[] into a
* Base64 encoded String using the class android.util.Base64 and pass in the resulting String.
* <br>
* <br>
* <b>NOTE:</b> The above String conversion is very clumsy, but seems to be necessary. See
* https://stackoverflow.com/questions/20911760/android-how-to-query-sqlitedatabase-with-non-string-selection-args
* @return An ArrayList containing Address objects populated with the data from the database
* search
*/
public ArrayList<Address> searchAddresses(String columnName, String searchString) {
ArrayList<Address> matchingRecords = new ArrayList<Address>();
// Specify which columns from the table we are interested in
String[] projection = {
AddressesTable.COLUMN_ID,
AddressesTable.COLUMN_CORRESPONDING_PUBKEY_ID,
AddressesTable.COLUMN_LABEL,
AddressesTable.COLUMN_ADDRESS,
AddressesTable.COLUMN_PRIVATE_SIGNING_KEY,
AddressesTable.COLUMN_PRIVATE_ENCRYPTION_KEY,
AddressesTable.COLUMN_RIPE_HASH,
AddressesTable.COLUMN_TAG
};
// Query the database via the ContentProvider
Cursor cursor =
mContentResolver.query(
DatabaseContentProvider.CONTENT_URI_ADDRESSES,
projection,
AddressesTable.TABLE_ADDRESSES + "." + columnName + " = ? ",
new String[] {searchString},
null);
if (cursor.moveToFirst()) {
do {
long id = cursor.getLong(0);
long correspondingPubkeyId = cursor.getLong(1);
String label = cursor.getString(2);
String address = cursor.getString(3);
String privateSigningKey = cursor.getString(4);
String privateEncryptionKey = cursor.getString(5);
byte[] ripeHash = Base64.decode(cursor.getString(6), Base64.DEFAULT);
byte[] tag = Base64.decode(cursor.getString(7), Base64.DEFAULT);
Address a = new Address();
a.setId(id);
a.setCorrespondingPubkeyId(correspondingPubkeyId);
a.setLabel(label);
a.setAddress(address);
a.setPrivateSigningKey(privateSigningKey);
a.setPrivateEncryptionKey(privateEncryptionKey);
a.setRipeHash(ripeHash);
a.setTag(tag);
matchingRecords.add(a);
} while (cursor.moveToNext());
} else {
Log.i(
TAG,
"Unable to find any Addresses with the value "
+ searchString
+ " in the "
+ columnName
+ " column");
cursor.close();
return matchingRecords;
}
cursor.close();
return matchingRecords;
}