99 lines
3.0 KiB
Java
99 lines
3.0 KiB
Java
import java.util.ArrayList;
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import java.util.List;
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public class Main {
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public static void main(String[] args) {
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System.out.println("=== Simulated Download Manager ===");
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// 1. Read config
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DownloadConfig config;
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try {
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config = ConfigReader.readConfig("download_config.txt");
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} catch (Exception e) {
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System.out.println("Failed to read configuration: " + e.getMessage());
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return;
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}
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System.out.println("File name: " + config.getFileName());
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System.out.println("Total size (MB): " + config.getTotalSizeMB());
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System.out.println("Chunk count: " + config.getChunkCount());
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System.out.println();
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// 2. Create chunks
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List<ChunkStatus> chunks = ChunkUtils.createChunks(
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config.getTotalSizeMB(),
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config.getChunkCount()
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);
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// 3. Create worker threads
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List<Thread> workerThreads = new ArrayList<>();
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for (ChunkStatus chunk : chunks) {
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DownloadWorker worker = new DownloadWorker(chunk, config);
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Thread workerThread = new Thread(worker, "Worker-" + chunk.getChunkId());
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workerThreads.add(workerThread);
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System.out.println("Assigned Chunk #" + chunk.getChunkId()
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+ " (" + chunk.getChunkSizeMB() + " MB) to " + workerThread.getName());
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}
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ProgressMonitor monitor = new ProgressMonitor(config, chunks);
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Thread monitorThread = new Thread(monitor, "Progress-Monitor");
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monitorThread.start();
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for (Thread thread : workerThreads) {
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thread.start();
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}
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for (Thread thread : workerThreads) {
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try {
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thread.join();
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} catch (InterruptedException e) {
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System.out.println("Main thread interrupted while waiting for " + thread.getName());
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Thread.currentThread().interrupt();
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}
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}
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try {
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monitorThread.join();
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} catch (InterruptedException e) {
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System.out.println("Main thread interrupted while waiting for monitor.");
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Thread.currentThread().interrupt();
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}
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System.out.println();
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System.out.println("=== Final Report ===");
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int completedChunks = 0;
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double downloadedMB = 0.0;
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for (ChunkStatus chunk : chunks) {
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downloadedMB += chunk.getDownloadedMB();
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if (chunk.isCompleted()) {
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completedChunks++;
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}
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System.out.println(
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"Chunk " + chunk.getChunkId()
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+ ": " + chunk.getDownloadedMB()
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+ "/" + chunk.getChunkSizeMB()
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+ " MB"
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);
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}
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System.out.println();
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System.out.println("Completed chunks: " + completedChunks + "/" + chunks.size());
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System.out.println("Downloaded total: " + downloadedMB + "/" + config.getTotalSizeMB() + " MB");
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System.out.println("Simulation finished.");
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}
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}
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