/* * Copyright (C) 2016 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. */ package com.android.printservice.recommendation.plugin.samsung; import android.net.nsd.NsdServiceInfo; import android.text.TextUtils; import java.nio.charset.StandardCharsets; import java.util.Locale; import java.util.Map; public class MDnsUtils { public static final String ATTRIBUTE__TY = "ty"; public static final String ATTRIBUTE__PRODUCT = "product"; public static final String ATTRIBUTE__USB_MFG = "usb_MFG"; public static final String ATTRIBUTE__MFG = "mfg"; public static String getString(byte[] value) { if (value != null) return new String(value,StandardCharsets.UTF_8); return null; } public static boolean isVendorPrinter(NsdServiceInfo networkDevice, String[] vendorValues) { Map attributes = networkDevice.getAttributes(); String product = getString(attributes.get(ATTRIBUTE__PRODUCT)); String ty = getString(attributes.get(ATTRIBUTE__TY)); String usbMfg = getString(attributes.get(ATTRIBUTE__USB_MFG)); String mfg = getString(attributes.get(ATTRIBUTE__MFG)); return containsVendor(product, vendorValues) || containsVendor(ty, vendorValues) || containsVendor(usbMfg, vendorValues) || containsVendor(mfg, vendorValues); } public static String getVendor(NsdServiceInfo networkDevice) { String vendor; Map attributes = networkDevice.getAttributes(); vendor = getString(attributes.get(ATTRIBUTE__MFG)); if (!TextUtils.isEmpty(vendor)) return vendor; vendor = getString(attributes.get(ATTRIBUTE__USB_MFG)); if (!TextUtils.isEmpty(vendor)) return vendor; return null; } private static boolean containsVendor(String container, String[] vendorValues) { if ((container == null) || (vendorValues == null)) return false; for (String value : vendorValues) { if (containsString(container, value) || containsString(container.toLowerCase(Locale.US), value.toLowerCase(Locale.US)) || containsString(container.toUpperCase(Locale.US), value.toUpperCase(Locale.US))) return true; } return false; } private static boolean containsString(String container, String contained) { return (container != null) && (contained != null) && (container.equalsIgnoreCase(contained) || container.contains(contained + " ")); } }