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fiveobjectsfiveobjects
committed
Add web and swing samples
1 parent 178f24a commit ae2bdb2

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-9
lines changed

‎.gitignore‎

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@@ -75,4 +75,5 @@ node_modules/
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.DS_Store
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.DS_Store?
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*vmware*
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**/vmware/*
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**/internal/*

‎java/misc/src/main/java/Merge.java‎

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import java.util.*;
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import java.io.*;
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public class Merge {
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public static void main(String[] args) throws Exception {
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String dataPath = args[0];
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String metadataPath = args[1];
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String outputPath = args[2];
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Map<String, Map<String, String>> metadata = readAndIndexMetadata(metadataPath);
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convertData(dataPath, outputPath, metadata);
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}
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private static Map<String, Map<String, String>> readAndIndexMetadata(String metadataPath) throws Exception {
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Map<String, Map<String, String>> result = new HashMap<>();
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BufferedReader reader = new BufferedReader(new FileReader(new File(metadataPath)));
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String line = "";
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while ((line = reader.readLine()) != null) {
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String[] values = line.split(",");
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if (!result.containsKey(values[0])) {
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result.put(values[0], new HashMap<String, String>());
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}
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result.get(values[0]).put(values[1], values[2]);
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}
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reader.close();
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return result;
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}
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private static void convertData(String dataPath, String outputPath, Map<String, Map<String, String>> metadata) throws Exception {
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BufferedReader reader = new BufferedReader(new FileReader(new File(dataPath)));
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BufferedWriter writer = new BufferedWriter(new FileWriter(new File(outputPath)));
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String line = "";
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while ((line = reader.readLine()) != null) {
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String[] values = line.split(",");
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StringBuilder result = new StringBuilder("");
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result.append(metadata.get("AWS-Billing-Account").get(values[0])).append(",");
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result.append(metadata.get("AWS-Account").get(values[1])).append(",");
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result.append(metadata.get("AWS-Service-Category").get(values[2])).append(",");
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result.append(metadata.get("Past-12-Months").get(values[3])).append(",");
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result.append(values[4]);
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writer.write(result.toString());
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}
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writer.flush();
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writer.close();
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reader.close();
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}
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}

‎java/misc/src/main/java/org/openapex/samples/basic/BitwiseOperations.java‎

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package org.openapex.samples.basic;
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public class BitwiseOperations {
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public static void main(String[] args) {
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long num = 1026832071211166612L;
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for(int i = 0; i < 64; i++){
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boolean set = (num & (1L<<i))>0;
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System.out.println("Bit "+i+ "set?: "+set);
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}
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//System.out.println(num & (2L<<34));
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}
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}

‎java/misc/src/main/java/org/openapex/samples/basic/DataType.java‎

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package org.openapex.samples.basic;
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public class DataType {
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public static void main(String[] args) {
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double a = 12.34d;
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float b = 1.3f;
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long c = 120l;
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System.out.println(a+", "+b+", "+c);
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}
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}

‎java/misc/src/main/java/org/openapex/samples/basic/FilePathEscape.java‎

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package org.openapex.samples.basic;
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public class FilePathEscape {
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public static void main(String[] args) {
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String path1 = "E:\test\filename.png";
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String path2 = "E:\\test\\filename.png";
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System.out.println("Path1: " + path1);
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System.out.println("Path2: " + path2);
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}
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}

‎java/misc/src/main/java/org/openapex/samples/basic/Merge.java‎

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package org.openapex.samples.basic;
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import java.util.*;
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import java.io.*;
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public class Merge{
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public static void main(String[] args) throws Exception{
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String dataPath = args[0];
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String metadataPath = args[1];
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String outputPath = args[2];
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Map<String, Map<String, String>> metadata = readAndIndexMetadata(metadataPath);
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convertData(dataPath, outputPath, metadata);
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}
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private static Map<String, Map<String, String>> readAndIndexMetadata(String metadataPath) throws Exception{
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Map<String, Map<String, String>> result = new HashMap<>();
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BufferedReader reader = new BufferedReader(new FileReader(new File(metadataPath)));
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String line = "";
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while ((line= reader.readLine())!=null){
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String[] values = line.split(",");
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if(!result.containsKey(values[0])){
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result.put(values[0], new HashMap<String, String>());
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}
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result.get(values[0]).put(values[1], values[2]);
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}
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reader.close();
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return result;
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}
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private static void convertData(String dataPath, String outputPath, Map<String, Map<String, String>> metadata) throws Exception{
31+
BufferedReader reader = new BufferedReader(new FileReader(new File(dataPath)));
32+
BufferedWriter writer = new BufferedWriter(new FileWriter(new File(outputPath)));
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String line = "";
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System.out.println(metadata);
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writer.write("AWS-Billing-Account,AWS-Account,AWS-Service-Category,Month,cost_before_chargeback\n");
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while ((line= reader.readLine())!=null){
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if(line.startsWith("AWS-Billing-Account")){
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continue;
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}
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String[] values = line.split(",");
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if(values.length < 4){
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System.out.println("Invalid entry: "+line);
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}
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StringBuilder result = new StringBuilder("");
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result.append(metadata.get("AWS-Billing-Account").get(values[0])).append(",");
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result.append(metadata.get("AWS-Account").get(values[1])).append(",");
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result.append(metadata.get("AWS-Service-Category").get(values[2])).append(",");
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result.append(metadata.get("Past-12-Months").get(values[3])).append(",");
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result.append(values[4]);
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writer.write(result.toString()+"\n");
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}
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writer.flush();
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writer.close();
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reader.close();
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}
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}

‎java/misc/src/main/java/org/openapex/samples/misc/http/HttpClientWithProxy.java‎

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package org.openapex.samples.misc.http;
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import javax.net.ssl.HttpsURLConnection;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.Scanner;
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/**
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* HttpClient class is capable to invoke URL, receive response
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* from server and process data.
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* @author mrityunjoy_saha
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* @version 1.0
15+
* @since Apex 1.2
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*/
17+
public class HttpClientWithProxy {
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/**
20+
* Creates a new instance of {@code HttpClient}.
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* @param proxyConnection Indicates whether or nor proxy connection to be used.
22+
*/
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public HttpClientWithProxy(boolean proxyConnection) {
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// In case proxy connection is required set additional connection properties.
25+
if (proxyConnection) {
26+
setupProxy();
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}
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}
29+
30+
/**
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* Sets proxy connection related properties.
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*/
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private void setupProxy() {
34+
System.out.println("Setting up proxy configuration");
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// Http proxy properties
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System.setProperty("https.proxyHost", "10.152.45.85");
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System.setProperty("https.proxyPort", "3128");
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// User name and password are optional
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System.setProperty("https.proxyUser", "pdhaval@ntlm.com");
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System.setProperty("https.proxyPassword", "VMware1!");
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}
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/**
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* Main method of the program.
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* @param args Input arguments to the program.
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*/
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public static void main(String[] args) {
48+
HttpClientWithProxy handler = new HttpClientWithProxy(true);
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Scanner scanner = new Scanner(System.in);
50+
while(true) {
51+
System.out.println("URL (q to quit):");
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String url = scanner.nextLine();
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if(!url.equalsIgnoreCase("q")) {
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InputStream response = handler.sendRequest(url.trim());
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handler.processResponse(response);
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} else {
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break;
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}
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}
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}
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/**
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* Opens a connection and sends Http request to given URL.
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* @param url URL to be invoked.
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* @return Response as a stream.
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*/
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private InputStream sendRequest(String url) {
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try {
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URL urlInstance = new URL(url);
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HttpsURLConnection connection = (HttpsURLConnection) urlInstance.
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openConnection();
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// Set timeout in milliseconds
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connection.setConnectTimeout(20000);
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// Set request headers
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addRequestHeaders(connection);
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// Establiish a connection
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connection.connect();
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System.out.println("Using Proxy? "+connection.usingProxy());
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// Read response status and headers
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readResponseStatusAndHeaders(connection);
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// Return response
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return connection.getInputStream();
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} catch (IOException ex) {
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ex.printStackTrace();
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}
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return null;
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}
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/**
90+
* Adds request headers to connection.
91+
* @param connection Http URL connection instance.
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*/
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private void addRequestHeaders(HttpURLConnection connection) {
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connection.addRequestProperty("Accept", "text/plain");
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connection.addRequestProperty("Accept-Language", "en");
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connection.addRequestProperty("Cache-Control", "no-cache");
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}
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/**
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* Reads response code, message and header fields.
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* @param connection Http URL connection instance.
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* @throws IOException If an error occrred while connecting to server.
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*/
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private void readResponseStatusAndHeaders(HttpURLConnection connection) throws
105+
IOException {
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System.out.println("Response code: " + connection.getResponseCode());
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System.out.println(
108+
"Response message: " + connection.getResponseMessage());
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System.out.println("Response header: Content-Length: " + connection.
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getHeaderField("Content-Length"));
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}
112+
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/**
114+
* Prints the response to console.
115+
* @param response Response stream.
116+
*/
117+
private void processResponse(InputStream response) {
118+
if (response == null) {
119+
System.out.println("No or blank response received");
120+
} else {
121+
StringBuilder data = new StringBuilder();
122+
try {
123+
int bufferSize = 2048;
124+
byte[] inputData = new byte[bufferSize];
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int count = 0;
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while ((count = response.read(inputData, 0, bufferSize)) != -1) {
127+
data.append(new String(inputData, 0, count, "UTF-8"));
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}
129+
} catch (IOException ex) {
130+
ex.printStackTrace();
131+
}
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System.out.println("Data received: " + data.toString());
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}
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}
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}

‎java/misc/src/main/java/org/openapex/samples/misc/swing/NumericTextField.java‎

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package org.openapex.samples.misc.swing;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JTextField;
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import javax.swing.SwingUtilities;
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import javax.swing.text.AbstractDocument;
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import javax.swing.text.AttributeSet;
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import javax.swing.text.BadLocationException;
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import javax.swing.text.DocumentFilter;
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/**
14+
* NumericTextField allows only numbers in the text field and not even decimal
15+
* points. Also, it restricts the length of input.
16+
*
17+
* @version 1.0
18+
* @since Apex 1.2
19+
*/
20+
public class NumericTextField {
21+
22+
/**
23+
*
24+
*/
25+
public void createUI() {
26+
final JFrame frame = new JFrame("NumericTextField");
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frame.setSize(400, 400);
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JPanel panel = new JPanel();
29+
JLabel label = new JLabel("Enter some input (only numbers are allowed of max length 10):");
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final JTextField textField = new JTextField(30);
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// Add the document filter to text field for numeric and length check.
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((AbstractDocument) textField.getDocument()).setDocumentFilter(new NumericAndLengthFilter(10));
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panel.add(label);
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panel.add(textField);
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frame.getContentPane().add(panel);
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setVisible(true);
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}
39+
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/**
41+
* Entry point of the application.
42+
*
43+
* @param args Input arguments.
44+
*/
45+
public static void main(String[] args) {
46+
final NumericTextField test = new NumericTextField();
47+
SwingUtilities.invokeLater(new Runnable() {
48+
49+
public void run() {
50+
test.createUI();
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}
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});
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}
54+
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/**
56+
* A document filter for numeric and length check.
57+
*/
58+
private class NumericAndLengthFilter extends DocumentFilter {
59+
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/**
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* Number of characters allowed.
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*/
63+
private int length = 0;
64+
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/**
66+
* Restricts the number of charcacters can be entered by given length.
67+
*
68+
* @param length Number of characters allowed.
69+
*/
70+
public NumericAndLengthFilter(int length) {
71+
this.length = length;
72+
}
73+
74+
@Override
75+
public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
76+
throws BadLocationException {
77+
if (isNumeric(string)) {
78+
if (this.length > 0 && fb.getDocument().getLength() + string.length() > this.length) {
79+
return;
80+
}
81+
super.insertString(fb, offset, string, attr);
82+
}
83+
}
84+
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@Override
86+
public void replace(FilterBypass fb, int offset, int length, String text, AttributeSet attrs)
87+
throws BadLocationException {
88+
if (isNumeric(text)) {
89+
if (this.length > 0 && fb.getDocument().getLength() + text.length() > this.length) {
90+
return;
91+
}
92+
super.insertString(fb, offset, text, attrs);
93+
}
94+
}
95+
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/**
97+
* This method tests whether given text can be represented as number. This
98+
* method can be enhanced further for specific needs.
99+
*
100+
* @param text Input text.
101+
* @return {@code true} if given string can be converted to number; otherwise
102+
* returns {@code false}.
103+
*/
104+
private boolean isNumeric(String text) {
105+
if (text == null || text.trim().equals("")) {
106+
return false;
107+
}
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for (int iCount = 0; iCount < text.length(); iCount++) {
109+
if (!Character.isDigit(text.charAt(iCount))) {
110+
return false;
111+
}
112+
}
113+
return true;
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}
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}
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}

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