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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.voicemailomtp.sync;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.provider.VoicemailContract;
import android.provider.VoicemailContract.Status;
import android.telecom.PhoneAccountHandle;
/**
* Construct queries to interact with the voicemail status table.
*/
public class VoicemailStatusQueryHelper {
final static String[] PROJECTION = new String[] {
Status._ID, // 0
Status.CONFIGURATION_STATE, // 1
Status.NOTIFICATION_CHANNEL_STATE, // 2
Status.SOURCE_PACKAGE // 3
};
public static final int _ID = 0;
public static final int CONFIGURATION_STATE = 1;
public static final int NOTIFICATION_CHANNEL_STATE = 2;
public static final int SOURCE_PACKAGE = 3;
private Context mContext;
private ContentResolver mContentResolver;
private Uri mSourceUri;
public VoicemailStatusQueryHelper(Context context) {
mContext = context;
mContentResolver = context.getContentResolver();
mSourceUri = VoicemailContract.Status.buildSourceUri(mContext.getPackageName());
}
/**
* Check if the configuration state for the voicemail source is "ok", meaning that the
* source is set up.
*
* @param phoneAccount The phone account for the voicemail source to check.
* @return {@code true} if the voicemail source is configured, {@code} false otherwise,
* including if the voicemail source is not registered in the table.
*/
public boolean isVoicemailSourceConfigured(PhoneAccountHandle phoneAccount) {
return isFieldEqualTo(phoneAccount, CONFIGURATION_STATE, Status.CONFIGURATION_STATE_OK);
}
/**
* Check if the notifications channel of a voicemail source is active. That is, when a new
* voicemail is available, if the server able to notify the device.
*
* @return {@code true} if notifications channel is active, {@code false} otherwise.
*/
public boolean isNotificationsChannelActive(PhoneAccountHandle phoneAccount) {
return isFieldEqualTo(phoneAccount, NOTIFICATION_CHANNEL_STATE,
Status.NOTIFICATION_CHANNEL_STATE_OK);
}
/**
* Check if a field for an entry in the status table is equal to a specific value.
*
* @param phoneAccount The phone account of the voicemail source to query for.
* @param columnIndex The column index of the field in the returned query.
* @param value The value to compare against.
* @return {@code true} if the stored value is equal to the provided value. {@code false}
* otherwise.
*/
private boolean isFieldEqualTo(PhoneAccountHandle phoneAccount, int columnIndex, int value) {
Cursor cursor = null;
if (phoneAccount != null) {
String phoneAccountComponentName = phoneAccount.getComponentName().flattenToString();
String phoneAccountId = phoneAccount.getId();
if (phoneAccountComponentName == null || phoneAccountId == null) {
return false;
}
try {
String whereClause =
Status.PHONE_ACCOUNT_COMPONENT_NAME + "=? AND " +
Status.PHONE_ACCOUNT_ID + "=? AND " + Status.SOURCE_PACKAGE + "=?";
String[] whereArgs = { phoneAccountComponentName, phoneAccountId,
mContext.getPackageName()};
cursor = mContentResolver.query(
mSourceUri, PROJECTION, whereClause, whereArgs, null);
if (cursor != null && cursor.moveToFirst()) {
return cursor.getInt(columnIndex) == value;
}
}
finally {
if (cursor != null) {
cursor.close();
}
}
}
return false;
}
}
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