QuickCoding/Generator.java at master · HurTeng/QuickCoding · GitHub

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import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.HashMap;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Collectors;

import javafx.util.Pair;

import jdk.nashorn.internal.runtime.regexp.joni.Regex;

public class Generator {

private static final char CSV_LIST_SEPARATOR = '|';

private static final String ENUM_CLASS_NAME = "ErrorEnum";

private static final String FILE_SUFFIX_NAME = "java";

private String inputFile;

private String outputDir;

private List<String> attributeList;

public Generator(String inputFile, String outputDir) {

this.inputFile = inputFile;

this.outputDir = outputDir;

}

public void generate() {

Map<String, Map<String, String>> dataMap = obtainDataMap();

generateConstantFile(dataMap);

generateEnumFile(dataMap);

}

private void generateConstantFile(Map<String, Map<String, String>> dataMap) {

for (String attribute : attributeList) {

String className = toBigHump(attribute);

String filePath = obtainOutputFilePath(className);

String content = obtainConstantTemplate(className, attribute, dataMap);

generateFile(filePath, content);

}

private void generateEnumFile(Map<String, Map<String, String>> dataMap) {

String className = ENUM_CLASS_NAME;

String filePath = obtainOutputFilePath(className);

String content = obtainEnumTemplate(className, dataMap);

generateFile(filePath, content);

}

private Map<String, Map<String, String>> obtainDataMap() {

List<List<String>> dataList = new ArrayList<>();

List<String> rowList = parseFile(inputFile);

for (String row : rowList) {

dataList.add(splitRowData(row));

}

attributeList = dataList.remove(0);

Map<String, Map<String, String>> dataMap = new LinkedHashMap<>();

int attributeSize = attributeList.size();

for (List<String> rowDataList : dataList) {

fillList(rowDataList, attributeSize);

String name = obtainLabelName(rowDataList.get(0));

Map<String, String> itemMap = new LinkedHashMap<>();

dataMap.put(name, itemMap);

for (int index = 0; index < attributeSize; index++) {

String attribute = attributeList.get(index);

String data = rowDataList.get(index);

itemMap.put(attribute, data);

}

return dataMap;

}

private List<String> splitRowData(String row) {

List<String> list = new ArrayList<>();

String regex = String.format("\\%s", CSV_LIST_SEPARATOR);

String[] rowArr = row.split(regex);

for (String data : rowArr) {

list.add(data.trim());

}

return list;

}

private List<String> fillList(List<String> list, int size) {

if (list.size() < size) {

for (int index = 0; index < size - list.size(); index++) {

list.add("");

}

return list;

}

private String obtainLabelName(String name) {

String regex = "\\s+";

return name.trim().replaceAll(regex, "_").toUpperCase();

}

private String obtainPropertyName(String property) {

return toSmallHump(property);

}

private String toBigHump(String str) {

return toHump(str, false);

}

private String toSmallHump(String str) {

return toHump(str, true);

}

private String toHump(String str, boolean isSmallHump) {

StringBuilder builder = new StringBuilder();

String[] strArr = str.split("[ _-]");

String subStr = "";

for (int index = 0; index < strArr.length; index++) {

subStr = strArr[index];

if (index != 0 || !isSmallHump) {

subStr = capitalize(subStr);

}

builder.append(subStr);

}

return builder.toString();

}

public String capitalize(String str) {

return str.substring(0, 1).toUpperCase() + str.substring(1);

}

private String obtainConstantTemplate(String className, String attribute,

Map<String, Map<String, String>> dataMap) {

StringBuilder builder = new StringBuilder();

builder.append("public interface ").append(className).append(" {\n");

for (Map.Entry<String, Map<String, String>> data : dataMap.entrySet()) {

String format = String.format("\tString %s = \"%s\";\n", data.getKey(), data.getValue().get(attribute));

builder.append(format);

}

builder.append("}\r\n");

return builder.toString();

}

private String obtainEnumTemplate(String className, Map<String, Map<String, String>> dataMap) {

String format = "public enum %s {\n" + "%s\n" + "%s\n" + "%s\n" + "%s" + "}";

return String.format(format, className, obtainEnumDataList(dataMap), obtainEnumConstructor(className),

obtainEnumProperty(), obtainEnumPropertyGetter());

}

private String obtainEnumDataList(Map<String, Map<String, String>> dataMap) {

StringBuilder builder = new StringBuilder();

List<String> propertyList = obtainEnumPropertyList();

ArrayList<String> nameList = new ArrayList<>(dataMap.keySet());

for (int index = 0; index < nameList.size(); index++) {

String separator = index < nameList.size() - 1 ? "," : ";";

String name = nameList.get(index);

Map<String, String> itemMap = dataMap.get(name);

String propertyArrString = propertyList.stream()

.map(property -> String.format("\"%s\"", itemMap.get(property)))

.collect(Collectors.joining(", ", "(", ")"));

builder.append("\t").append(name).append(propertyArrString).append(separator).append("\n");

}

return builder.toString();

}

private String obtainEnumConstructor(String className) {

StringBuilder builder = new StringBuilder();

List<String> propertyList = obtainEnumPropertyList();

String propertyArrString = propertyList.stream()

.map(property -> String.format("String %s", obtainPropertyName(property)))

.collect(Collectors.joining(", ", "(", ")"));

builder.append("\t").append(className).append(propertyArrString).append(" {\n");

for (String property : propertyList) {

builder.append("\t\tthis.").append(property).append(" = ").append(property).append(";\n");

}

builder.append("\t}\n");

return builder.toString();

}

private String obtainEnumProperty() {

StringBuilder builder = new StringBuilder();

List<String> propertyList = obtainEnumPropertyList();

for (String property : propertyList) {

builder.append("\tprivate String ").append(obtainPropertyName(property)).append(";\n");

}

return builder.toString();

}

private String obtainEnumPropertyGetter() {

StringBuilder builder = new StringBuilder();

List<String> propertyList = obtainEnumPropertyList();

for (String property : propertyList) {

builder.append("\tpublic String get").append(toBigHump(property)).append("() {\n");

builder.append("\t\treturn ").append(obtainPropertyName(property)).append(";\n").append("\t}\n\n");

}

return builder.toString();

}

private List<String> obtainEnumPropertyList() {

return attributeList;

}

private String obtainOutputFilePath(String name) {

preGenerateDir(outputDir);

return String.format("%s%s%s.%s", outputDir, File.separator, name, FILE_SUFFIX_NAME);

}

private void preGenerateDir(String directory) {

File file = new File(directory);

if (!file.exists() && !file.isDirectory()) {

file.mkdirs();

}

private File preGenerateFile(String filePath) throws IOException {

File file = new File(filePath);

if (!file.exists()) {

file.createNewFile();

}

return file;

}

private void generateFile(String filePath, String content) {

PrintWriter writer = null;

try {

File file = preGenerateFile(filePath);

writer = new PrintWriter(new FileOutputStream(file));

writer.write(content);

writer.flush();

} catch (IOException e) {

e.printStackTrace();

} finally {

if (writer != null) {

writer.close();

}

private List<String> parseFile(String filePath) {

List<String> list = new ArrayList<>();

BufferedReader reader = null;

try {

String line;

reader = new BufferedReader(new FileReader(filePath));

while ((line = reader.readLine()) != null) {

list.add(line);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

if (reader != null) {

reader.close();

}

} catch (IOException e) {

e.printStackTrace();

}

return list;

}

public static void main(String[] args) {

String currentPath = new File("").getAbsolutePath();

String inputFile = currentPath + File.separator + "error-code.csv";

String outputDir = currentPath + File.separator + "output" + File.separator + "java";

new Generator(inputFile, outputDir).generate();

}

QuickCoding/Generator.java at master · HurTeng/QuickCoding · GitHub

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