| /* |
| * Copyright (C) 2011 ZXing authors |
| * |
| * 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.google.zxing.client.android.encode; |
| |
| import android.telephony.PhoneNumberUtils; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| |
| /** |
| * Implementations encode according to some scheme for encoding contact information, like VCard or |
| * MECARD. |
| * |
| * @author Sean Owen |
| */ |
| abstract class ContactEncoder { |
| |
| /** |
| * @return first, the best effort encoding of all data in the appropriate format; second, a |
| * display-appropriate version of the contact information |
| */ |
| abstract String[] encode(List<String> names, |
| String organization, |
| List<String> addresses, |
| List<String> phones, |
| List<String> phoneTypes, |
| List<String> emails, |
| List<String> urls, |
| String note); |
| |
| /** |
| * @return null if s is null or empty, or result of s.trim() otherwise |
| */ |
| static String trim(String s) { |
| if (s == null) { |
| return null; |
| } |
| String result = s.trim(); |
| return result.isEmpty() ? null : result; |
| } |
| |
| static void append(StringBuilder newContents, |
| StringBuilder newDisplayContents, |
| String prefix, |
| String value, |
| Formatter fieldFormatter, |
| char terminator) { |
| String trimmed = trim(value); |
| if (trimmed != null) { |
| newContents.append(prefix).append(fieldFormatter.format(trimmed, 0)).append(terminator); |
| newDisplayContents.append(trimmed).append('\n'); |
| } |
| } |
| |
| static void appendUpToUnique(StringBuilder newContents, |
| StringBuilder newDisplayContents, |
| String prefix, |
| List<String> values, |
| int max, |
| Formatter displayFormatter, |
| Formatter fieldFormatter, |
| char terminator) { |
| if (values == null) { |
| return; |
| } |
| int count = 0; |
| Collection<String> uniques = new HashSet<>(2); |
| for (int i = 0; i < values.size(); i++) { |
| String value = values.get(i); |
| String trimmed = trim(value); |
| if (trimmed != null && !trimmed.isEmpty() && !uniques.contains(trimmed)) { |
| newContents.append(prefix).append(fieldFormatter.format(trimmed, i)).append(terminator); |
| CharSequence display = displayFormatter == null ? trimmed : displayFormatter.format(trimmed, i); |
| newDisplayContents.append(display).append('\n'); |
| if (++count == max) { |
| break; |
| } |
| uniques.add(trimmed); |
| } |
| } |
| } |
| |
| static String formatPhone(String phoneData) { |
| // Just collect the call to a deprecated method in one place |
| return PhoneNumberUtils.formatNumber(phoneData); |
| } |
| |
| } |