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127
src/_VisualDVM/Passes/Server/RepositoryPass.java
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127
src/_VisualDVM/Passes/Server/RepositoryPass.java
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package _VisualDVM.Passes.Server;
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import Common.Database.Objects.DBObject;
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import Common.Utils.Utils_;
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import _VisualDVM.Global;
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import _VisualDVM.Utils;
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import _VisualDVM.Repository.RepositoryRefuseException;
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import _VisualDVM.Repository.RepositoryServer;
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import _VisualDVM.Repository.Server.ServerCode;
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import _VisualDVM.Repository.Server.ServerExchangeUnit_2021;
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import Common.Passes.PassException;
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import Common.Passes.Pass;
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import javafx.util.Pair;
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import java.io.File;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.net.*;
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public abstract class RepositoryPass<S extends RepositoryServer, T> extends Pass<T> {
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protected S server;
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public RepositoryPass(S server_in) {
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server = server_in;
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}
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protected ObjectInputStream in = null; // поток чтения из сокета
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protected ObjectOutputStream out = null; // поток записи в сокет
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//-
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protected ServerExchangeUnit_2021 request;
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protected ServerExchangeUnit_2021 response;
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//-
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protected Socket clientSocket = null; //сокет для общения
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protected ServerCode ExitCode = ServerCode.Undefined;
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@Override
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protected boolean needsAnimation() {
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return true;
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}
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protected int getTimeout() {
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return Global.properties.SocketTimeout;
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}
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//-
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protected void connect() throws Exception {
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clientSocket = Utils.createClientSocket(InetAddress.getByName(Global.properties.ServerAddress),
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server.getPort(),
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getTimeout()
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);
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out = new ObjectOutputStream(clientSocket.getOutputStream());
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in = new ObjectInputStream(clientSocket.getInputStream());
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}
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protected void disconnect() throws Exception {
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if (clientSocket != null)
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clientSocket.close();
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if (in != null)
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in.close();
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if (out != null)
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out.close();
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//-
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clientSocket = null;
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in = null;
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out = null;
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}
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protected abstract void ServerAction() throws Exception;
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protected void Command(ServerExchangeUnit_2021 request_in) throws Exception {
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ExitCode = ServerCode.Undefined;
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request = request_in;
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out.writeObject(request);
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response = (ServerExchangeUnit_2021) in.readObject();
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switch (ExitCode = response.getCode()) {
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case FAIL:
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throw (Exception) response.object;
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case OLD:
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throw new PassException("Сервер устарел.");
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default:
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break;
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}
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}
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protected void SendFile(File src, String dst) throws Exception {
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Command(new ServerExchangeUnit_2021(ServerCode.SendFile, dst, Utils_.fileToBytes(src)));
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}
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protected void ReceiveFile(String src, File dst) throws Exception {
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Command(new ServerExchangeUnit_2021(ServerCode.ReceiveFile, src));
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if (response.object != null)
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response.Unpack(dst);
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}
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protected String ReadFile(String src) throws Exception {
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Command(new ServerExchangeUnit_2021(ServerCode.ReadFile, src));
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return response.object.toString();
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}
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@Override
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protected void body() throws Exception {
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connect();
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ServerAction();
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}
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@Override
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protected void performFinish() throws Exception {
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disconnect();
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}
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@Override
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protected void CheckException(Exception ex) {
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if (ExitCode.equals(ServerCode.OLD)) {
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Log.Writeln_("Текущий сервер устарел. Доступны только обновления компонент!");
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return;
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}
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if (ex instanceof RepositoryRefuseException) {
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Log.Writeln_(ex.getMessage());
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return;
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}
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Throwable cause = getCauseRec(ex);
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if ((cause instanceof UnknownHostException)) {
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Log.Writeln_("Репозиторий не найден.\n" +
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"Проверьте наличие подключения к сети.");
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} else if ((cause instanceof SocketTimeoutException)) {
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Log.Writeln_("Время ожидания подключения к репозиторию истекло.\n" +
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"Проверьте наличие подключения к сети.");
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} else if ((cause instanceof ConnectException)) {
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if (cause.getMessage().contains("Connection refused: connect"))
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Log.Writeln_("Серверный компонент не активен. Обратитесь к администрации.");
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else Log.Writeln_("Ошибка соединения");
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} else
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super.CheckException(ex);
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}
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public void EditObject(DBObject object) throws Exception {
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Command(new ServerExchangeUnit_2021(ServerCode.EditObject, "", object));
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}
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//-
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public void DeleteObject(DBObject object) throws Exception {
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Command(new ServerExchangeUnit_2021(ServerCode.DeleteObjectByPK, "",
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new Pair<>(object.getClass(), object.getPK())));
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}
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}
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