| /* |
| * 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.hp; |
| |
| 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<String,byte[]> 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<String,byte[]> 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 + " ")); |
| } |
| } |