Philip P. Moltmann | a26b775 | 2016-05-23 10:33:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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.printservice.recommendation.plugin.samsung; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.net.nsd.NsdManager; |
| 21 | import android.net.nsd.NsdServiceInfo; |
| 22 | import android.annotation.NonNull; |
| 23 | import android.text.TextUtils; |
| 24 | import com.android.printservice.recommendation.PrintServicePlugin; |
| 25 | |
| 26 | public abstract class ServiceRecommendationPlugin implements PrintServicePlugin, ServiceListener.Observer { |
| 27 | |
| 28 | protected static final String PDL_ATTRIBUTE = "pdl"; |
| 29 | |
| 30 | protected final Object mLock = new Object(); |
| 31 | protected PrinterDiscoveryCallback mCallback = null; |
| 32 | protected final ServiceListener mListener; |
| 33 | protected final NsdManager mNSDManager; |
| 34 | protected final VendorInfo mVendorInfo; |
| 35 | private final int mVendorStringID; |
| 36 | |
| 37 | protected ServiceRecommendationPlugin(Context context, int vendorStringID, VendorInfo vendorInfo, String[] services) { |
| 38 | mNSDManager = (NsdManager)context.getSystemService(Context.NSD_SERVICE); |
| 39 | mVendorStringID = vendorStringID; |
| 40 | mVendorInfo = vendorInfo; |
| 41 | mListener = new ServiceListener(context, this, services); |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public int getName() { |
| 46 | return mVendorStringID; |
| 47 | } |
| 48 | |
| 49 | @NonNull |
| 50 | @Override |
| 51 | public CharSequence getPackageName() { |
| 52 | return mVendorInfo.mPackageName; |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public void start(@NonNull PrinterDiscoveryCallback callback) throws Exception { |
| 57 | synchronized (mLock) { |
| 58 | mCallback = callback; |
| 59 | } |
| 60 | mListener.start(); |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public void stop() throws Exception { |
| 65 | synchronized (mLock) { |
| 66 | mCallback = null; |
| 67 | } |
| 68 | mListener.stop(); |
| 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public void dataSetChanged() { |
| 73 | synchronized (mLock) { |
| 74 | if (mCallback != null) mCallback.onChanged(getCount()); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public boolean matchesCriteria(String vendor, NsdServiceInfo nsdServiceInfo) { |
| 80 | return TextUtils.equals(vendor, mVendorInfo.mVendorID); |
| 81 | } |
| 82 | |
| 83 | public int getCount() { |
| 84 | return mListener.getCount().second; |
| 85 | } |
| 86 | } |