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Diffstat (limited to 'core/java/com/trustedlogic/trustednfc/android/NdefRecord.java')
| -rw-r--r-- | core/java/com/trustedlogic/trustednfc/android/NdefRecord.java | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/core/java/com/trustedlogic/trustednfc/android/NdefRecord.java b/core/java/com/trustedlogic/trustednfc/android/NdefRecord.java new file mode 100644 index 0000000..a0257fe --- /dev/null +++ b/core/java/com/trustedlogic/trustednfc/android/NdefRecord.java @@ -0,0 +1,293 @@ +/* + * Copyright (C) 2010 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. + */ + +/** + * File : NdefRecord.java + * Original-Author : Trusted Logic S.A. (Jeremie Corbier) + * Created : 05-10-2009 + */ + +package com.trustedlogic.trustednfc.android; + +import android.location.Location; +import android.os.Parcel; +import android.os.Parcelable; + +/** + * An NDEF record as specified by the <a href="http://www.nfc-forum.org/">NFC + * Forum</a>. + * + * @see NdefMessage + * + * @since AA01.04 + * @hide + */ +public class NdefRecord implements Parcelable { + + /** + * Type Name Format - Empty record + */ + public static final short TNF_EMPTY = 0x0; + + /** + * Type Name Format - NFC Forum-defined type + */ + public static final short TNF_WELL_KNOWN_TYPE = 0x1; + + /** + * Type Name Format - RFC2045 MIME type + */ + public static final short TNF_MIME_MEDIA_TYPE = 0x2; + + /** + * Type Name Format - Absolute URI + */ + public static final short TNF_ABSOLUTE_URI = 0x3; + + /** + * Type Name Format - User-defined type + */ + public static final short TNF_EXTERNAL_TYPE = 0x4; + + /** + * Type Name Format - Unknown type + */ + public static final short TNF_UNKNOWN = 0x5; + + /** + * Type Name Format - Unchanged. This TNF is used for chunked records, so + * that middle records inherits from the first record's type. + */ + public static final short TNF_UNCHANGED = 0x6; + + /** + * NFC Forum-defined Type - Smart Poster + */ + public static final byte[] TYPE_SMART_POSTER = { 0x53, 0x70 }; + + /** + * NFC Forum-defined Type - Text + */ + public static final byte[] TYPE_TEXT = { 0x54 }; + + /** + * NFC Forum-defined Type - URI + */ + public static final byte[] TYPE_URI = { 0x55 }; + + /** + * NFC Forum-defined Global Type - Connection Handover Request + */ + public static final byte[] TYPE_HANDOVER_REQUEST = { 0x48, 0x72 }; + + /** + * NFC Forum-defined Global Type - Connection Handover Select + */ + public static final byte[] TYPE_HANDOVER_SELECT = { 0x48, 0x73 }; + + /** + * NFC Forum-defined Global Type - Connection Handover Carrier + */ + public static final byte[] TYPE_HANDOVER_CARRIER = { 0x48, 0x63 }; + + /** + * NFC Forum-defined Local Type - Alternative Carrier + */ + public static final byte[] TYPE_ALTERNATIVE_CARRIER = { 0x61, 0x63 }; + + /* Flag values */ + private static final int FLAG_MB = 0x80; + private static final int FLAG_ME = 0x40; + private static final int FLAG_CF = 0x20; + private static final int FLAG_SR = 0x10; + private static final int FLAG_IL = 0x08; + + /** + * Record Flags + */ + private short mFlags = 0; + + /** + * Record Type Name Format + */ + private short mTnf = 0; + + /** + * Record Type + */ + private byte[] mType = null; + + /** + * Record Identifier + */ + private byte[] mId = null; + + /** + * Record Payload + */ + private byte[] mPayload = null; + + /** + * Creates an NdefRecord given its Type Name Format, its type, its id and + * its. + * + * @param tnf + * Type Name Format + * @param type + * record type + * @param id + * record id (optional, can be null) + * @param data + * record payload + */ + public NdefRecord(short tnf, byte[] type, byte[] id, byte[] data) { + + /* generate flag */ + mFlags = FLAG_MB | FLAG_ME; + + /* Determine if it is a short record */ + if(data.length < 0xFF) + { + mFlags |= FLAG_SR; + } + + /* Determine if an id is present */ + if(id.length != 0) + { + mFlags |= FLAG_IL; + } + + mTnf = tnf; + mType = (byte[]) type.clone(); + mId = (byte[]) id.clone(); + mPayload = (byte[]) data.clone(); + } + + /** + * Appends data to the record's payload. + * + * @param data + * Data to be added to the record. + */ + public void appendPayload(byte[] data) { + byte[] newPayload = new byte[mPayload.length + data.length]; + + System.arraycopy(mPayload, 0, newPayload, 0, mPayload.length); + System.arraycopy(data, 0, newPayload, mPayload.length, data.length); + + mPayload = newPayload; + } + + /** + * Returns record as a byte array. + * + * @return record as a byte array. + */ + public byte[] toByteArray() { + return generate(mFlags, mTnf, mType, mId, mPayload); + } + + private native byte[] generate(short flags, short tnf, byte[] type, + byte[] id, byte[] data); + + /** + * (Parcelable) Describe the parcel + * {@hide} + */ + public int describeContents() { + return 0; + } + + /** + * (Parcelable) Convert current object to a Parcel + * {@hide} + */ + public void writeToParcel(Parcel dest, int flags) { + dest.writeInt(mTnf); + dest.writeInt(mType.length); + dest.writeByteArray(mType); + dest.writeInt(mId.length); + dest.writeByteArray(mId); + dest.writeInt(mPayload.length); + dest.writeByteArray(mPayload); + } + + /** + * Creator class, needed when implementing from Parcelable + * {@hide} + */ + public static final Parcelable.Creator<NdefRecord> CREATOR = new Parcelable.Creator<NdefRecord>() { + public NdefRecord createFromParcel(Parcel in) { + // TNF + short tnf = (short)in.readInt(); + // Type + int typeLength = in.readInt(); + byte[] type = new byte[typeLength]; + in.readByteArray(type); + // ID + int idLength = in.readInt(); + byte[] id = new byte[idLength]; + in.readByteArray(id); + // Payload + int payloadLength = in.readInt(); + byte[] payload = new byte[payloadLength]; + in.readByteArray(payload); + + return new NdefRecord(tnf, type, id, payload); + } + + public NdefRecord[] newArray(int size) { + return new NdefRecord[size]; + } + }; + + /** + * Returns record TNF + * + * @return mTnf + */ + public int getTnf(){ + return mTnf; + } + + /** + * Returns record TYPE + * + * @return mType + */ + public byte[] getType(){ + return mType; + } + + /** + * Returns record ID + * + * @return mId + */ + public byte[] getId(){ + return mId; + } + + /** + * Returns record Payload + * + * @return mPayload + */ + public byte[] getPayload(){ + return mPayload; + } + +} |