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jpa-hospital-example
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Add the CLI and entry point.

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KKlochko 2 years ago
parent 7f9af282a3
commit 8f546f426f
2 changed files with 152 additions and 0 deletions
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src/main/java/space/kklochko/jdbc_hospital_example/Main.java
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package space.kklochko.jdbc_hospital_example;
import space.kklochko.jdbc_hospital_example.cli.CLI;
import space.kklochko.jdbc_hospital_example.config.factories.LoadDataBaseConfigFromEnvFile;
import space.kklochko.jdbc_hospital_example.config.models.DataBaseConfig;
import space.kklochko.jdbc_hospital_example.db.factories.DataBaseConnection;
import java.sql.*;
public class Main {
public static void main(String[] args) throws SQLException {
DataBaseConfig db = (new LoadDataBaseConfigFromEnvFile()).load();
DataBaseConnection dbc = new DataBaseConnection(db);
CLI cli = new CLI(dbc);
cli.run();
}
}

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src/main/java/space/kklochko/jdbc_hospital_example/cli/CLI.java
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package space.kklochko.jdbc_hospital_example.cli;
import lombok.Getter;
import lombok.NonNull;
import lombok.Setter;
import space.kklochko.jdbc_hospital_example.cli.commands.CommandData;
import space.kklochko.jdbc_hospital_example.cli.commands.CommandEntities;
import space.kklochko.jdbc_hospital_example.cli.commands.CommandEntity;
import space.kklochko.jdbc_hospital_example.cli.commands.factories.CommandFactory;
import space.kklochko.jdbc_hospital_example.cli.commands.factories.ReadAllFactory;
import space.kklochko.jdbc_hospital_example.cli.parsers.CommandParser;
import space.kklochko.jdbc_hospital_example.cli.validators.InputStringFormatValidator;
import space.kklochko.jdbc_hospital_example.cli.validators.Validator;
import space.kklochko.jdbc_hospital_example.db.factories.DataBaseConnection;
import space.kklochko.jdbc_hospital_example.db.repositories.AbstractRepository;
import space.kklochko.jdbc_hospital_example.db.repositories.DepartmentRepository;
import space.kklochko.jdbc_hospital_example.db.repositories.IndicatorRepository;
import space.kklochko.jdbc_hospital_example.db.repositories.PatientRepository;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;
@Setter
@Getter
public class CLI {
private final String prompt = "> ";
private String state = "prompt";
private final String help = "Help (help or h)\n" +
"Command format: `command {item}(arg1=value1, ...`\n\n" +
"Commands: \n" +
"insert {item}({args}): \n" +
"update {item}({args}): \n" +
"readAll {item}: \n" +
"delete {item}(uuid='07c6e39e-727a-11ee-8e7b-c0e4349366ab'}).\n" +
"Examples:\n" +
"\nDepartment:\n" +
"\tinsert department(id='bcbbcdb4-702c-11ee-9113-c0e4349366cb', name='First department', location='Stepan Bandera Street', phone='380123451244')\n" +
"\tinsert department(name='First department', location='Stepan Bandera Street', phone='380123451244')\n" +
"\tupdate department(id='bcbbcdb4-702c-11ee-9113-c0e4349366cb', name='First department', location='Stepan Bandera Street', phone='380123451244')\n" +
"\treadAll department()\n" +
"\tremove department(id='bcbbcdb4-702c-11ee-9113-c0e4349366cb')\n" +
"\nPatient:\n" +
"\tinsert patient(id='bcbbcdb4-702c-11ee-9113-c0e4349366bb', name='Oleh', age='21', phone='380123451234')\n" +
"\tinsert patient(name='Oleh', age='21', phone='380123451234')\n" +
"\tupdate patient(id='bcbbcdb4-702c-11ee-9113-c0e4349366bb', name='Oleh', age='21', phone='380123451234')\n" +
"\treadAll patient()\n" +
"\tremove patient(id='bcbbcdb4-702c-11ee-9113-c0e4349366bb')\n" +
"\nIndicators:\n" +
"\tinsert indicator(id='07c6e39e-727a-11ee-8e7b-c0e4349366ab', type='blood245', values='well maybe', timestamp='2023-10-17 14:30:00')\n" +
"\tinsert indicator(type='blood246', values='well maybe', timestamp='2023-10-17 14:30:00')\n" +
"\tupdate indicator(id='07c6e39e-727a-11ee-8e7b-c0e4349366ab', type='blood247', values='well maybe', timestamp='2023-10-17 14:30:00')\n" +
"\treadAll indicator()\n" +
"\tremove indicator(id='07c6e39e-727a-11ee-8e7b-c0e4349366ab')\n";
DataBaseConnection dbc;
public CLI(DataBaseConnection dbc) {
this.dbc = dbc;
}
public void run() {
Scanner reader = new Scanner(System.in);
String line = "";
CommandData commandData;
while(true) {
if(getState() == "prompt") {
System.out.print(prompt);
setState("waitInput");
}else if(getState() == "waitInput") {
line = reader.nextLine();
setState("isHelp?");
}else if(getState() == "isHelp?") {
if(line.equals("h") || line.equals("help")) {
System.out.println(help);
setState("prompt");
}else {
setState("validate");
}
} else if(getState() == "validate") {
ArrayList<Validator> validators = new ArrayList<>();
validators.add(new InputStringFormatValidator(line));
setState("run");
for (Validator validator : validators) {
if(!validator.isValid()) {
System.err.println(validator.getMessage());
System.out.println();
setState("prompt");
}
}
} else if(getState() == "run") {
CommandParser commandParser = new CommandParser();
commandData = commandParser.parse(line);
runCommand(commandData);
setState("prompt");
}
}
}
public void runCommand(CommandData commandData) {
if(commandData.getName().equals("readAll")) {
ReadAllFactory factory = new ReadAllFactory();
CommandEntities command = factory.create(commandData, getRepository(commandData));
ArrayList items = command.run();
for(Iterator iter = command.run().iterator(); iter.hasNext(); ) {
System.out.println(iter.next());
}
} else {
CommandFactory factory = new CommandFactory();
CommandEntity command = factory.create(commandData, getRepository(commandData));
command.run();
}
}
public AbstractRepository getRepository(@NonNull CommandData commandData) {
if(commandData.getDatatype().equals("indicator")) {
return new IndicatorRepository(dbc);
}else if(commandData.getDatatype().equals("patient")) {
return new PatientRepository(dbc);
}else {
return new DepartmentRepository(dbc);
}
}
}
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