94 lines
2.8 KiB
Java
94 lines
2.8 KiB
Java
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/*
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* Copyright (C) 2011, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.nfc;
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import android.os.Parcel;
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import android.os.Parcelable;
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import java.io.IOException;
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/**
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* Class used to pipe transceive result from the NFC service.
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*
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* @hide
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*/
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public final class TransceiveResult implements Parcelable {
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public static final int RESULT_SUCCESS = 0;
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public static final int RESULT_FAILURE = 1;
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public static final int RESULT_TAGLOST = 2;
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public static final int RESULT_EXCEEDED_LENGTH = 3;
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final int mResult;
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final byte[] mResponseData;
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public TransceiveResult(final int result, final byte[] data) {
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mResult = result;
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mResponseData = data;
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}
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public byte[] getResponseOrThrow() throws IOException {
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switch (mResult) {
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case RESULT_SUCCESS:
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return mResponseData;
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case RESULT_TAGLOST:
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throw new TagLostException("Tag was lost.");
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case RESULT_EXCEEDED_LENGTH:
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throw new IOException("Transceive length exceeds supported maximum");
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default:
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throw new IOException("Transceive failed");
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}
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}
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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dest.writeInt(mResult);
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if (mResult == RESULT_SUCCESS) {
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dest.writeInt(mResponseData.length);
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dest.writeByteArray(mResponseData);
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}
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}
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public static final @android.annotation.NonNull Parcelable.Creator<TransceiveResult> CREATOR =
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new Parcelable.Creator<TransceiveResult>() {
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@Override
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public TransceiveResult createFromParcel(Parcel in) {
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int result = in.readInt();
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byte[] responseData;
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if (result == RESULT_SUCCESS) {
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int responseLength = in.readInt();
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responseData = new byte[responseLength];
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in.readByteArray(responseData);
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} else {
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responseData = null;
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}
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return new TransceiveResult(result, responseData);
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}
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@Override
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public TransceiveResult[] newArray(int size) {
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return new TransceiveResult[size];
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}
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};
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}
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