at.christophwurst.orm.consoleclient.TestClient.java Source code

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Here is the source code for at.christophwurst.orm.consoleclient.TestClient.java

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/*
 * Copyright (C) 2016 Christoph Wurst <christoph@winzerhof-wurst.at>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package at.christophwurst.orm.consoleclient;

import at.christophwurst.orm.config.AppConfig;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Map;
import java.util.TreeMap;
import javax.inject.Inject;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.stereotype.Component;

/**
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 */
@Component()
public class TestClient implements Client {

    public static void main(String[] args) {
        try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext()) {
            context.register(AppConfig.class);
            context.refresh();

            Client client = context.getBean(Client.class);
            System.out.println(client.getClass().getName());

            ProjectCommands prc = context.getBean(ProjectCommands.class);
            prc.registerCommands(client);
            StatisticsCommands stc = context.getBean(StatisticsCommands.class);
            stc.registerCommands(client);
            ScrumCommands scc = context.getBean(ScrumCommands.class);
            scc.registerCommands(client);
            EmployeeCommands emc = context.getBean(EmployeeCommands.class);
            emc.registerCommands(client);

            client.run();
        }
    }

    @Inject
    private DbSeeder dbSeeder;
    @Inject
    private CommandExecutor commandExecutor;
    private final Map<String, Command> commands;

    public TestClient() {
        commands = new TreeMap<>();
    }

    @Override
    public void registerCommand(String identifier, Command command) {
        commands.put(identifier, command);
    }

    private void printAvailableCommands() {
        System.out.println("# Available commands:");
        commands.keySet().stream().forEach((id) -> {
            System.out.println(" - " + id);
        });
        System.out.println();
    }

    @Override
    public void run() {
        System.out.println("Scrum project test client started");

        dbSeeder.seed();

        printAvailableCommands();

        String cmd = "";
        BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
        ConsoleInterface consoleInterface = new ConsoleInterface() {

            private String promptFor(String name) {
                System.out.print("Enter " + name + " please> ");
                try {
                    String val = buff.readLine();
                    return val.equals("") ? null : val;
                } catch (IOException ex) {
                    return null;
                }
            }

            @Override
            public Integer getIntValue(String name) {
                String val = promptFor(name);
                return val == null ? null : Integer.parseInt(val);
            }

            @Override
            public Long getLongValue(String name) {
                String val = promptFor(name);
                return val == null ? null : Long.parseLong(val);
            }

            @Override
            public String getStringValue(String name) {
                return promptFor(name);
            }

        };
        while (!cmd.equals("exit")) {
            try {
                System.out.println();
                System.out.print("> ");
                cmd = buff.readLine();
                if (commands.containsKey(cmd)) {
                    commandExecutor.execute(commands.get(cmd), consoleInterface);
                } else if (cmd.equals("?") || cmd.equals("help")) {
                    printAvailableCommands();
                } else {
                    System.err.println("unknown command <" + cmd + ">");
                }
            } catch (IOException ex) {
                System.err.println("error reading command");
                break;
            }
        }
    }

}