DefaultScriptProcess.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient 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 2 of the License, or
 * (at your option) any later version.
 *
 * JXClient 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 JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff
 * Copyright (C) 2006-2017,2019-2023 Andreas Kirschbaum
 * Copyright (C) 2010-2012,2014-2018,2020-2023 Nicolas Weeger
 */
 
package com.realtime.crossfire.jxclient.scripts;
 
import com.realtime.crossfire.jxclient.items.FloorView;
import com.realtime.crossfire.jxclient.items.ItemSet;
import com.realtime.crossfire.jxclient.map.MapUpdaterState;
import com.realtime.crossfire.jxclient.queue.CommandQueue;
import com.realtime.crossfire.jxclient.server.crossfire.CrossfireServerConnection;
import com.realtime.crossfire.jxclient.skills.SkillSet;
import com.realtime.crossfire.jxclient.spells.SpellsManager;
import com.realtime.crossfire.jxclient.stats.Stats;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public class DefaultScriptProcess extends AbstractScriptProcess {
 
    @NotNull
    private final Process process;
 
    @NotNull
    private final BufferedReader in;
 
    @NotNull
    private final OutputStreamWriter osw;
 
    private boolean killed;
 
    public DefaultScriptProcess(final int scriptId, @NotNull final String filename, @NotNull final CommandQueue commandQueue, @NotNull final CrossfireServerConnection crossfireServerConnection, @NotNull final Stats stats, @NotNull final FloorView floorView, @NotNull final ItemSet itemSet, @NotNull final SpellsManager spellsManager, @NotNull final MapUpdaterState mapUpdaterState, @NotNull final SkillSet skillSet) throws IOException {
        super(scriptId, filename, commandQueue, crossfireServerConnection, stats, floorView, itemSet, spellsManager, mapUpdaterState, skillSet);
        process = Runtime.getRuntime().exec(filename);
        in = new BufferedReader(new InputStreamReader(process.getInputStream(), Charset.defaultCharset()));
        osw = new OutputStreamWriter(process.getOutputStream(), Charset.defaultCharset());
    }
 
    @Nullable
    @Override
    protected String readFromScript() throws IOException {
        return in.readLine();
    }
 
    @Nullable
    @Override
    protected String waitForTermination() {
        try {
            final int exitStatus = process.waitFor();
            return exitStatus == 0 ? null : "exit "+exitStatus;
        } catch (final InterruptedException ex) {
            return ex.getMessage();
        }
    }
 
    @Override
    protected void writeToScript(@NotNull final String data) throws IOException {
        if (killed) {
            return;
        }
 
        osw.write(data);
        osw.flush();
    }
 
    @Override
    public void killScript() {
        killed = true;
        process.destroy();
    }
 
}