1/*
2 * (c) Copyright 2016 Samsung Electronics
3 * (c) Copyright 2016 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17package com.android.printservice.recommendation.plugin.samsung;
18
19import android.net.nsd.NsdServiceInfo;
20import android.text.TextUtils;
21import android.util.Log;
22
23import com.android.printservice.recommendation.util.MDNSFilteredDiscovery;
24import com.android.printservice.recommendation.util.MDNSUtils;
25
26import java.util.HashSet;
27import java.util.Set;
28
29/**
30 * Printer filter for Mopria printer models supported by the print service plugin
31 */
32class PrinterFilterMopria implements MDNSFilteredDiscovery.PrinterFilter {
33    private static final String TAG = "PrinterFilterMopria";
34
35    static final Set<String> MOPRIA_MDNS_SERVICES = new HashSet<String>() {{
36        add("_ipp._tcp");
37        add("_ipps._tcp");
38    }};
39
40    private static final String PDL__PDF = "application/pdf";
41    private static final String PDL__PCLM = "application/PCLm";
42    private static final String PDL__PWG_RASTER = "image/pwg-raster";
43
44    private static final String PDL_ATTRIBUTE = "pdl";
45
46    @Override
47    public boolean matchesCriteria(NsdServiceInfo nsdServiceInfo) {
48        if (!MDNSUtils.isSupportedServiceType(nsdServiceInfo, MOPRIA_MDNS_SERVICES)) {
49            return false;
50        }
51
52        String pdls = MDNSUtils.getString(nsdServiceInfo.getAttributes().get(PDL_ATTRIBUTE));
53        boolean isMatch = !TextUtils.isEmpty(pdls)
54                && (pdls.contains(PDL__PDF)
55                || pdls.contains(PDL__PCLM)
56                || pdls.contains(PDL__PWG_RASTER));
57
58        if (isMatch) {
59            Log.d(TAG, "Mopria printer found: " + nsdServiceInfo.getServiceName());
60        }
61        return isMatch;
62    }
63}
64