Initial data commit

Task/MAC-vendor-lookup/Java/mac-vendor-lookup-1.java

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+package com.jamesdonnell.MACVendor;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+/** MAC Vendor Lookup class.
+ * www.JamesDonnell.com
+ * @author James A. Donnell Jr. */
+public class Lookup {
+	/** Base URL for API. The API from www.macvendors.com was chosen. */
+	private static final String baseURL = "http://api.macvendors.com/";
+
+	/** Performs lookup on MAC address(es) supplied in arguments.
+	 * @param args MAC address(es) to lookup. */
+	public static void main(String[] args) {
+		for (String arguments : args)
+			System.out.println(arguments + ": " + get(arguments));
+	}
+
+	/** Performs lookup on supplied MAC address.
+	 * @param macAddress MAC address to lookup.
+	 * @return Manufacturer of MAC address. */
+	private static String get(String macAddress) {
+		try {
+			StringBuilder result = new StringBuilder();
+			URL url = new URL(baseURL + macAddress);
+			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+			conn.setRequestMethod("GET");
+			BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+			String line;
+			while ((line = rd.readLine()) != null) {
+				result.append(line);
+			}
+			rd.close();
+			return result.toString();
+		} catch (FileNotFoundException e) {
+			// MAC not found
+			return "N/A";
+		} catch (IOException e) {
+			// Error during lookup, either network or API.
+			return null;
+		}
+	}
+}

Task/MAC-vendor-lookup/Java/mac-vendor-lookup-2.java

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+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+public final class MacVendorLookup {
+
+	public static void main(String[] aArgs) throws InterruptedException, IOException {		
+		for ( String macAddress : macAddresses ) {
+			HttpResponse<String> response = getMacVendor(macAddress);
+			System.out.println(macAddress + "  " + response.statusCode() + "  " + response.body());
+			
+			TimeUnit.SECONDS.sleep(2);
+		}		
+	}
+
+	private static HttpResponse<String> getMacVendor(String aMacAddress) throws IOException, InterruptedException {				
+		URI uri = URI.create(BASE_URL + aMacAddress);
+		HttpClient client = HttpClient.newHttpClient();
+		HttpRequest request = HttpRequest
+			.newBuilder()
+		    .uri(uri)
+		    .header("accept", "application/json")
+		    .GET()
+		    .build();
+		
+		HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+		
+		return response;
+	}
+	
+	private static final String BASE_URL = "http://api.macvendors.com/";
+	
+	private static final List<String> macAddresses = List.of("88:53:2E:67:07:BE",
+															 "D4:F4:6F:C9:EF:8D",
+															 "FC:FB:FB:01:FA:21",
+															 "4c:72:b9:56:fe:bc",
+															 "00-14-22-01-23-45"
+															 );	
+	
+}