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This package contains examples of how to use drasyl.
There is a newer version: 0.10.0
/*
 * Copyright (c) 2020-2021 Heiko Bornholdt and Kevin Röbert
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 * OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.drasyl.example.qotm;

import org.drasyl.annotation.NonNull;
import org.drasyl.node.DrasylConfig;
import org.drasyl.node.DrasylException;
import org.drasyl.node.DrasylNode;
import org.drasyl.node.event.Event;
import org.drasyl.node.event.MessageEvent;
import org.drasyl.util.RandomUtil;

import java.nio.file.Path;
import java.util.Map;

@SuppressWarnings({ "java:S106", "java:S2096" })
public class QuoteOfTheMomentServer extends DrasylNode {
    private static final String IDENTITY = System.getProperty("identity", "qotm-server.identity");
    private static final Quote[] QUOTES = {
            Quote.of("Stay hungry, stay foolish", "Steve Jobs"),
            Quote.of("Information is not knowledge", "Albert Einstein"),
            Quote.of("A distributed system is one where the failure of some computer I've never heard of can keep me from getting my work done", "Leslie Lamport"),
            Quote.of("Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it", "Linus Torvalds"),
            Quote.of("It's harder to read code than to write it", "Joel Spolsky"),
            Quote.of("Any fool can write code that a computer can understand. Good programmers write code that humans can understand", "Martin Fowler"),
            Quote.of("Code never lies; comments sometimes do", "Ron Jeffries")
    };

    protected QuoteOfTheMomentServer() throws DrasylException {
        super(DrasylConfig.newBuilder()
                .serializationsBindingsOutbound(Map.of(Quote.class, "jackson-json"))
                .identityPath(Path.of(IDENTITY))
                .build());
    }

    @Override
    public void onEvent(@NonNull final Event event) {
        if (event instanceof MessageEvent) {
            final MessageEvent msg = (MessageEvent) event;
            this.send(msg.getSender(), getQuoteOfTheMoment());
        }
    }

    public static void main(final String[] args) throws DrasylException {
        final DrasylNode node = new QuoteOfTheMomentServer();
        node.start().toCompletableFuture().join();
        System.out.println("QuoteOfTheMomentServer address is: " + node.identity().getIdentityPublicKey());
    }

    public static Quote getQuoteOfTheMoment() {
        return QUOTES[RandomUtil.randomInt(QUOTES.length - 1)];
    }

    public static final class Quote {
        private static final String ANSI_RESET = "\u001B[0m";
        private static final String ANSI_GREEN = "\u001B[32m";
        private static final String ANSI_BLUE = "\u001B[34m";
        public final String text;
        public final String from;

        // default constructor for jackson
        private Quote() {
            this.text = null;
            this.from = null;
        }

        private Quote(final String text, final String from) {
            this.text = text;
            this.from = from;
        }

        public static Quote of(final String quote, final String from) {
            return new Quote(quote, from);
        }

        @Override
        public String toString() {
            return ANSI_GREEN + "\"" + text + "\"" + ANSI_RESET + " — " + ANSI_BLUE + from + ANSI_RESET;
        }
    }
}