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/*
* Copyright (C) 2017 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.dialer.phonelookup.cp2;
import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Contacts;
import android.provider.ContactsContract.DeletedContacts;
import android.support.v4.util.ArraySet;
import com.android.dialer.DialerPhoneNumber;
import com.android.dialer.common.concurrent.DialerExecutors;
import com.android.dialer.phonelookup.PhoneLookup;
import com.android.dialer.phonelookup.PhoneLookupInfo;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import java.util.Set;
/** PhoneLookup implementation for local contacts. */
public final class Cp2PhoneLookup implements PhoneLookup {
private final Context context;
Cp2PhoneLookup(Context context) {
this.context = context;
}
@Override
public ListenableFuture<Boolean> isDirty(
ImmutableSet<DialerPhoneNumber> phoneNumbers, long lastModified) {
// TODO(calderwoodra): consider a different thread pool
return MoreExecutors.listeningDecorator(DialerExecutors.getLowPriorityThreadPool(context))
.submit(() -> isDirtyInternal(phoneNumbers, lastModified));
}
private boolean isDirtyInternal(ImmutableSet<DialerPhoneNumber> phoneNumbers, long lastModified) {
return contactsUpdated(getContactIdsFromPhoneNumbers(phoneNumbers), lastModified)
|| contactsDeleted(lastModified);
}
/** Returns set of contact ids that correspond to {@code phoneNumbers} if the contact exists. */
private Set<Long> getContactIdsFromPhoneNumbers(ImmutableSet<DialerPhoneNumber> phoneNumbers) {
Set<Long> contactIds = new ArraySet<>();
try (Cursor cursor =
context
.getContentResolver()
.query(
Phone.CONTENT_URI,
new String[] {Phone.CONTACT_ID},
columnInSetWhereStatement(Phone.NORMALIZED_NUMBER, phoneNumbers.size()),
contactIdsSelectionArgs(phoneNumbers),
null)) {
cursor.moveToPosition(-1);
while (cursor.moveToNext()) {
contactIds.add(cursor.getLong(0 /* columnIndex */));
}
}
return contactIds;
}
private static String[] contactIdsSelectionArgs(ImmutableSet<DialerPhoneNumber> phoneNumbers) {
String[] args = new String[phoneNumbers.size()];
int i = 0;
for (DialerPhoneNumber phoneNumber : phoneNumbers) {
args[i++] = getNormalizedNumber(phoneNumber);
}
return args;
}
private static String getNormalizedNumber(DialerPhoneNumber phoneNumber) {
// TODO(calderwoodra): implement normalization logic that matches contacts.
return phoneNumber.getRawInput().getNumber();
}
/** Returns true if any contacts were modified after {@code lastModified}. */
private boolean contactsUpdated(Set<Long> contactIds, long lastModified) {
try (Cursor cursor =
context
.getContentResolver()
.query(
Contacts.CONTENT_URI,
new String[] {Contacts._ID},
contactsIsDirtyWhereStatement(contactIds.size()),
contactsIsDirtySelectionArgs(lastModified, contactIds),
null)) {
return cursor.getCount() > 0;
}
}
private static String contactsIsDirtyWhereStatement(int numberOfContactIds) {
StringBuilder where = new StringBuilder();
// Filter to after last modified time
where.append(Contacts.CONTACT_LAST_UPDATED_TIMESTAMP).append(" > ?");
// Filter based only on contacts we care about
where.append(" AND ").append(columnInSetWhereStatement(Contacts._ID, numberOfContactIds));
return where.toString();
}
private String[] contactsIsDirtySelectionArgs(long lastModified, Set<Long> contactIds) {
String[] args = new String[contactIds.size() + 1];
args[0] = Long.toString(lastModified);
int i = 1;
for (Long contactId : contactIds) {
args[i++] = Long.toString(contactId);
}
return args;
}
/** Returns true if any contacts were deleted after {@code lastModified}. */
private boolean contactsDeleted(long lastModified) {
try (Cursor cursor =
context
.getContentResolver()
.query(
DeletedContacts.CONTENT_URI,
new String[] {DeletedContacts.CONTACT_DELETED_TIMESTAMP},
DeletedContacts.CONTACT_DELETED_TIMESTAMP + " > ?",
new String[] {Long.toString(lastModified)},
null)) {
return cursor.getCount() > 0;
}
}
private static String columnInSetWhereStatement(String columnName, int setSize) {
StringBuilder where = new StringBuilder();
where.append(columnName).append(" IN (");
for (int i = 0; i < setSize; i++) {
if (i != 0) {
where.append(", ");
}
where.append("?");
}
return where.append(")").toString();
}
@Override
public ListenableFuture<ImmutableMap<DialerPhoneNumber, PhoneLookupInfo>> bulkUpdate(
ImmutableMap<DialerPhoneNumber, PhoneLookupInfo> existingInfoMap, long lastModified) {
// TODO(calderwoodra)
return null;
}
}
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