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validation of track/sector/block parameters
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parent
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commit
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@ -20,6 +20,7 @@
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package io.github.applecommander.acx.arggroup;
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import com.webcodepro.applecommander.storage.Disk;
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import com.webcodepro.applecommander.storage.physical.ImageOrder;
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import picocli.CommandLine.ArgGroup;
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import picocli.CommandLine.Option;
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@ -29,7 +30,7 @@ public class CoordinateSelection {
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private CoordinateSelection.SectorCoordinateSelection sectorCoordinate;
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@ArgGroup(exclusive = false)
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private CoordinateSelection.BlockCoordinateSelection blockCoordinate;
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public boolean includesBootSector() {
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if (sectorCoordinate != null) {
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return sectorCoordinate.isBootSector();
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@ -39,7 +40,7 @@ public class CoordinateSelection {
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}
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return false;
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}
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public byte[] read(Disk disk) {
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if (sectorCoordinate != null) {
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return sectorCoordinate.read(disk);
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@ -49,7 +50,7 @@ public class CoordinateSelection {
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}
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return disk.readSector(0, 0);
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}
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public void write(Disk disk, byte[] data) {
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if (sectorCoordinate != null) {
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sectorCoordinate.write(disk, data);
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@ -59,35 +60,67 @@ public class CoordinateSelection {
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}
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disk.writeSector(0, 0, data);
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}
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public static class SectorCoordinateSelection {
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@Option(names = { "-t", "--track" }, required = true, description = "Track number.")
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private Integer track;
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@Option(names = { "-s", "--sector" }, required = true, description = "Sector number.")
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private Integer sector;
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public boolean isBootSector() {
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return track == 0 && sector == 0;
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}
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public void validateTrackAndSector(Disk disk) throws IllegalArgumentException {
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final int tracksPerDisk = disk.getImageOrder().getTracksPerDisk();
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final int sectorsPerTrack = disk.getImageOrder().getSectorsPerTrack();
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if (track < 0 || track >= tracksPerDisk) {
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String errormsg = String.format("The track number(%d) is out of range(0-%d) on this image.", track, tracksPerDisk-1);
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throw new IllegalArgumentException(errormsg);
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}
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if (sector < 0 || sector >= sectorsPerTrack) {
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String errormsg = String.format("The sector number(%d) is out of range(0-%d) on this image.", sector, sectorsPerTrack-1);
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throw new IllegalArgumentException(errormsg);
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}
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}
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public byte[] read(Disk disk) {
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validateTrackAndSector(disk);
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return disk.readSector(track, sector);
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}
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public void write(Disk disk, byte[] data) {
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validateTrackAndSector(disk);
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disk.writeSector(track, sector, data);
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}
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}
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public static class BlockCoordinateSelection {
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@Option(names = { "-b", "--block" }, description = "Block number.")
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private Integer block;
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public boolean isBootBlock() {
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return block == 0;
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}
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public void validateBlockNum(Disk disk) throws IllegalArgumentException {
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final int blocksOnDevice = disk.getImageOrder().getBlocksOnDevice();
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if (block < 0 || block >= blocksOnDevice) {
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String errormsg = String.format("The block number(%d) is out of range(0-%d) on this image.", block, blocksOnDevice-1);
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throw new IllegalArgumentException(errormsg);
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}
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}
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public byte[] read(Disk disk) {
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validateBlockNum(disk);
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return disk.readBlock(block);
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}
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public void write(Disk disk, byte[] data) {
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validateBlockNum(disk);
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disk.writeBlock(block, data);
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}
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}
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}
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}
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