| /* |
| * Copyright (C) 2014 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.providers.contacts; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import android.database.Cursor; |
| import android.database.MatrixCursor; |
| import android.provider.ContactsContract.PhoneLookup; |
| import android.telephony.PhoneNumberUtils; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| /** |
| * Helper class for PHONE_LOOKUP's that involve numbers with "*" prefixes. |
| */ |
| /* package-protected */ final class PhoneLookupWithStarPrefix { |
| private static final String TAG = "PhoneLookupWSP"; |
| |
| /** |
| * Returns a cursor with a subset of the rows passed into this function. If {@param number} |
| * starts with a "*" then only rows from {@param cursor} that have a number equal to |
| * {@param number} will be returned. If {@param number} doesn't start with a "*", then |
| * only rows from {@param cursor} that have numbers without starting "*" characters |
| * will be returned. |
| * |
| * This function is used to resolve b/13195334. |
| * |
| * @param number unnormalized phone number. |
| * @param cursor this function takes ownership of the cursor. The calling scope MUST NOT |
| * use or close() the cursor passed into this function. The cursor must contain |
| * PhoneLookup.NUMBER. |
| * |
| * @return a cursor that the calling context owns |
| */ |
| public static Cursor removeNonStarMatchesFromCursor(String number, Cursor cursor) { |
| |
| // Close cursors that we don't return. |
| Cursor unreturnedCursor = cursor; |
| |
| try { |
| if (TextUtils.isEmpty(number)) { |
| unreturnedCursor = null; |
| return cursor; |
| } |
| |
| final String queryPhoneNumberNormalized = normalizeNumberWithStar(number); |
| if (!queryPhoneNumberNormalized.startsWith("*") |
| && !matchingNumberStartsWithStar(cursor)) { |
| cursor.moveToPosition(-1); |
| unreturnedCursor = null; |
| return cursor; |
| } |
| |
| final MatrixCursor matrixCursor = new MatrixCursor(cursor.getColumnNames()); |
| |
| // Close cursors that we don't return. |
| Cursor unreturnedMatrixCursor = matrixCursor; |
| |
| try { |
| cursor.moveToPosition(-1); |
| while (cursor.moveToNext()) { |
| final int numberIndex = cursor.getColumnIndex(PhoneLookup.NUMBER); |
| final String matchingNumberNormalized |
| = normalizeNumberWithStar(cursor.getString(numberIndex)); |
| if (!matchingNumberNormalized.startsWith("*") |
| && !queryPhoneNumberNormalized.startsWith("*") |
| || matchingNumberNormalized.equals(queryPhoneNumberNormalized)) { |
| // Copy row from cursor into matrixCursor |
| final MatrixCursor.RowBuilder b = matrixCursor.newRow(); |
| for (int column = 0; column < cursor.getColumnCount(); column++) { |
| b.add(cursor.getColumnName(column), cursorValue(cursor, column)); |
| } |
| } |
| } |
| unreturnedMatrixCursor = null; |
| return matrixCursor; |
| } finally { |
| if (unreturnedMatrixCursor != null) { |
| unreturnedMatrixCursor.close(); |
| } |
| } |
| } finally { |
| if (unreturnedCursor != null) { |
| unreturnedCursor.close(); |
| } |
| } |
| } |
| |
| @VisibleForTesting |
| static String normalizeNumberWithStar(String phoneNumber) { |
| if (TextUtils.isEmpty(phoneNumber)) { |
| return phoneNumber; |
| } |
| if (phoneNumber.startsWith("*")) { |
| // Use PhoneNumberUtils.normalizeNumber() to normalize the rest of the number after |
| // the leading "*". Strip out the "+" since "+"s are only allowed as leading |
| // characters. NOTE: This statement has poor performance. Fortunately, it won't be |
| // called very often. |
| return "*" + PhoneNumberUtils.normalizeNumber( |
| phoneNumber.substring(1).replace("+", "")); |
| } |
| return PhoneNumberUtils.normalizeNumber(phoneNumber); |
| } |
| |
| /** |
| * @return whether {@param cursor} contain any numbers that start with "*" |
| */ |
| private static boolean matchingNumberStartsWithStar(Cursor cursor) { |
| cursor.moveToPosition(-1); |
| while (cursor.moveToNext()) { |
| final int numberIndex = cursor.getColumnIndex(PhoneLookup.NUMBER); |
| final String phoneNumber = normalizeNumberWithStar(cursor.getString(numberIndex)); |
| if (phoneNumber.startsWith("*")) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static Object cursorValue(Cursor cursor, int column) { |
| switch(cursor.getType(column)) { |
| case Cursor.FIELD_TYPE_BLOB: |
| return cursor.getBlob(column); |
| case Cursor.FIELD_TYPE_INTEGER: |
| return cursor.getInt(column); |
| case Cursor.FIELD_TYPE_FLOAT: |
| return cursor.getFloat(column); |
| case Cursor.FIELD_TYPE_STRING: |
| return cursor.getString(column); |
| case Cursor.FIELD_TYPE_NULL: |
| return null; |
| default: |
| Log.d(TAG, "Invalid value in cursor: " + cursor.getType(column)); |
| return null; |
| } |
| } |
| } |