AppleCommander/app/cli-acx/src/main/java/io/github/applecommander/acx/command/ReadCommand.java

92 lines
3.4 KiB
Java

/*
* AppleCommander - An Apple ][ image utility.
* Copyright (C) 2019-2022 by Robert Greene and others
* robgreene at users.sourceforge.net
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package io.github.applecommander.acx.command;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.nio.file.OpenOption;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.function.Consumer;
import io.github.applecommander.acx.arggroup.CoordinateSelection;
import io.github.applecommander.acx.base.ReadOnlyDiskImageCommandOptions;
import picocli.CommandLine.ArgGroup;
import picocli.CommandLine.Command;
import picocli.CommandLine.Option;
@Command(name = "read", description = "Read a block or sector.")
public class ReadCommand extends ReadOnlyDiskImageCommandOptions {
@ArgGroup(multiplicity = "1", heading = "%nCoordinate Selection:%n")
private CoordinateSelection coordinate = new CoordinateSelection();
@ArgGroup(heading = "%nOutput Selection:%n")
private OutputSelection output = new OutputSelection();
@Option(names = { "-f", "--force" }, description = "Overwrite existing file (combine with '-o').")
private void selectForceFile(boolean flag) {
openOptions = new OpenOption[] { StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING,
StandardOpenOption.WRITE };
}
private static OpenOption[] openOptions = { StandardOpenOption.CREATE_NEW };
@Override
public int handleCommand() throws Exception {
byte[] data = coordinate.read(disk);
output.write(data);
return 0;
}
public static class OutputSelection {
private Consumer<byte[]> sink = this::writeToStdout;
private String filename;
public void write(byte[] data) {
sink.accept(data);
}
@Option(names = "--stdout", description = "Write raw data to stdout. (default)")
public void selectStdout(boolean flag) {
sink = this::writeToStdout;
}
@Option(names = { "-o", "--output" }, description = "Write raw data to file.")
public void selectFile(String filename) {
this.filename = filename;
this.sink = this::writeToFile;
}
public void writeToStdout(byte[] data) {
try {
System.out.write(data);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
public void writeToFile(byte[] data) {
try {
Files.write(Path.of(filename), data, openOptions);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}
}