1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.cts.verifier.nfc.tech; 18 19 import android.nfc.NdefMessage; 20 import android.nfc.NdefRecord; 21 22 import java.util.Arrays; 23 24 /** Class with utility methods for testing equality of messages and displaying byte payloads. */ 25 public class NfcUtils { 26 27 public static boolean areMessagesEqual(NdefMessage message, NdefMessage otherMessage) { 28 return message != null && otherMessage != null 29 && areRecordArraysEqual(message.getRecords(), otherMessage.getRecords()); 30 } 31 32 private static boolean areRecordArraysEqual(NdefRecord[] records, NdefRecord[] otherRecords) { 33 if (records.length == otherRecords.length) { 34 for (int i = 0; i < records.length; i++) { 35 if (!areRecordsEqual(records[i], otherRecords[i])) { 36 return false; 37 } 38 } 39 return true; 40 } else { 41 return false; 42 } 43 } 44 45 private static boolean areRecordsEqual(NdefRecord record, NdefRecord otherRecord) { 46 return Arrays.equals(record.toByteArray(), otherRecord.toByteArray()); 47 } 48 49 static CharSequence displayByteArray(byte[] bytes) { 50 StringBuilder builder = new StringBuilder().append("["); 51 for (int i = 0; i < bytes.length; i++) { 52 builder.append(Byte.toString(bytes[i])); 53 if (i + 1 < bytes.length) { 54 builder.append(", "); 55 } 56 } 57 return builder.append("]"); 58 } 59 } 60
