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package com.example.android.sunshine.app.sync;

import android.accounts.AbstractAccountAuthenticator;
import android.accounts.Account;
import android.accounts.AccountAuthenticatorResponse;
import android.accounts.NetworkErrorException;
import android.content.Context;
import android.os.Bundle;

/**
 * Manages "Authentication" to Sunshine's backend service.  The SyncAdapter framework
 * requires an authenticator object, so syncing to a service that doesn't need authentication
 * typically means creating a stub authenticator like this one.
 * This code is copied directly, in its entirety, from
 * http://developer.android.com/training/sync-adapters/creating-authenticator.html
 * Which is a pretty handy reference when creating your own syncadapters.  Just sayin'.
 */
public class SunshineAuthenticator extends AbstractAccountAuthenticator {

    public SunshineAuthenticator(Context context) {
        super(context);
    }

    // No properties to edit.
    @Override
    public Bundle editProperties(
            AccountAuthenticatorResponse r, String s) {
        throw new UnsupportedOperationException();
    }

    // Because we're not actually adding an account to the device, just return null.
    @Override
    public Bundle addAccount(
            AccountAuthenticatorResponse r,
            String s,
            String s2,
            String[] strings,
            Bundle bundle) throws NetworkErrorException {
        return null;
    }

    // Ignore attempts to confirm credentials
    @Override
    public Bundle confirmCredentials(
            AccountAuthenticatorResponse r,
            Account account,
            Bundle bundle) throws NetworkErrorException {
        return null;
    }

    // Getting an authentication token is not supported
    @Override
    public Bundle getAuthToken(
            AccountAuthenticatorResponse r,
            Account account,
            String s,
            Bundle bundle) throws NetworkErrorException {
        throw new UnsupportedOperationException();
    }

    // Getting a label for the auth token is not supported
    @Override
    public String getAuthTokenLabel(String s) {
        throw new UnsupportedOperationException();
    }

    // Updating user credentials is not supported
    @Override
    public Bundle updateCredentials(
            AccountAuthenticatorResponse r,
            Account account,
            String s, Bundle bundle) throws NetworkErrorException {
        throw new UnsupportedOperationException();
    }

    // Checking features for the account is not supported
    @Override
    public Bundle hasFeatures(
            AccountAuthenticatorResponse r,
            Account account, String[] strings) throws NetworkErrorException {
        throw new UnsupportedOperationException();
    }
}