Merge pull request #88 from SenseiKiwi/rewrite

Progress on the New Save Format and Minor Fixes
This commit is contained in:
StevenRS11 2013-09-11 20:14:50 -07:00
commit 25446453cb
17 changed files with 443 additions and 158 deletions

View file

@ -89,7 +89,7 @@ public class EventHookContainer
}
@ForgeSubscribe
public void onWorldsave(WorldEvent.Save event)
public void onWorldSave(WorldEvent.Save event)
{
if (event.world.provider.dimensionId == 0)
{

View file

@ -3,11 +3,6 @@ package StevenDimDoors.mod_pocketDim.blocks;
import java.util.List;
import java.util.Random;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import StevenDimDoors.mod_pocketDim.mod_pocketDim;
import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
@ -20,6 +15,9 @@ import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.util.Icon;
import net.minecraft.world.World;
import StevenDimDoors.mod_pocketDim.mod_pocketDim;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
public class BlockDimWall extends Block
{
@ -69,14 +67,7 @@ public class BlockDimWall extends Block
@Override
public Icon getIcon(int par1, int par2)
{
if (par2 == 1)
{
return blockIcon[par2];
}
else
{
return blockIcon[0];
}
return (par2 != 1) ? blockIcon[0] : blockIcon[1];
}
@Override
@ -119,8 +110,13 @@ public class BlockDimWall extends Block
if (playerEquip instanceof ItemBlock)
{
Block block = Block.blocksList[playerEquip.itemID];
if (!Block.isNormalCube(playerEquip.itemID) || block instanceof BlockContainer || block.blockID == this.blockID)
// SenseiKiwi: Using getBlockID() rather than the raw itemID is critical.
// Some mods may override that function and use item IDs outside the range
// of the block list.
int blockID = ((ItemBlock) playerEquip).getBlockID();
Block block = Block.blocksList[blockID];
if (!Block.isNormalCube(blockID) || block instanceof BlockContainer || blockID == this.blockID)
{
return false;
}

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@ -1,5 +0,0 @@
package StevenDimDoors.mod_pocketDim.commands;
public interface IItemDimDoor {
}

View file

@ -171,7 +171,7 @@ public class DDTeleporter
player.setPositionAndUpdate(x + 0.5, y - 1, z + 1.5);
break;
default:
player.setPositionAndUpdate(x, y - 1, z);
player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
break;
}
}
@ -204,7 +204,8 @@ public class DDTeleporter
entity.worldObj.updateEntityWithOptionalForce(entity, false);
break;
default:
DDTeleporter.setEntityPosition(entity, x, y, z);
DDTeleporter.setEntityPosition(entity, x + 0.5, y, z + 0.5);
entity.worldObj.updateEntityWithOptionalForce(entity, false);
break;
}
}
@ -225,7 +226,7 @@ public class DDTeleporter
setEntityPosition(entity, x + 0.5, y, z + 1.5);
break;
default:
setEntityPosition(entity, x, y, z);
setEntityPosition(entity, x + 0.5, y, z + 0.5);
break;
}
}
@ -553,10 +554,10 @@ public class DDTeleporter
return false;
}
Point3D destination = yCoordHelper.findDropPoint(world, source.getX(), source.getY(), source.getZ());
Point3D destination = yCoordHelper.findDropPoint(world, source.getX(), source.getY() + 1, source.getZ());
if (destination != null)
{
current.root().setDestination(link, source.getX(), source.getY(), source.getZ());
current.root().setDestination(link, destination.getX(), destination.getY(), destination.getZ());
return true;
}
}

View file

@ -14,6 +14,12 @@ public abstract class DimLink
protected DimLink(Point4D source, DimLink parent)
{
if (parent.source.getDimension() != source.getDimension())
{
// Ban having children in other dimensions to avoid serialization issues with cross-dimensional tails
throw new IllegalArgumentException("source and parent.source must have the same dimension.");
}
this.parent = parent;
this.source = source;
this.tail = parent.tail;

View file

@ -57,13 +57,17 @@ public abstract class NewDimData
if (nextParent == null)
{
throw new IllegalArgumentException("nextParent cannot be null.");
}
}
if (this == nextParent)
{
//Ignore this request silently
return false;
}
if (nextParent.source.getDimension() != source.getDimension())
{
// Ban having children in other dimensions to avoid serialization issues with cross-dimensional tails
throw new IllegalArgumentException("source and parent.source must have the same dimension.");
}
//Release children
for (DimLink child : children)
@ -106,22 +110,22 @@ public abstract class NewDimData
}
}
private static Random random = new Random();
protected static Random random = new Random();
private final int id;
private final Map<Point4D, InnerDimLink> linkMapping;
private final List<InnerDimLink> linkList;
private final boolean isDungeon;
private boolean isFilled;
private final int depth;
private int packDepth;
private final NewDimData parent;
private final NewDimData root;
private final List<NewDimData> children;
private Point4D origin;
private int orientation;
private DungeonData dungeon;
private final IUpdateWatcher<Point4D> linkWatcher;
protected int id;
protected Map<Point4D, InnerDimLink> linkMapping;
protected List<InnerDimLink> linkList;
protected boolean isDungeon;
protected boolean isFilled;
protected int depth;
protected int packDepth;
protected NewDimData parent;
protected NewDimData root;
protected List<NewDimData> children;
protected Point4D origin;
protected int orientation;
protected DungeonData dungeon;
protected IUpdateWatcher<Point4D> linkWatcher;
protected NewDimData(int id, NewDimData parent, boolean isPocket, boolean isDungeon,
IUpdateWatcher<Point4D> linkWatcher)

View file

@ -13,6 +13,9 @@ import net.minecraftforge.common.DimensionManager;
import StevenDimDoors.mod_pocketDim.DDProperties;
import StevenDimDoors.mod_pocketDim.helpers.Compactor;
import StevenDimDoors.mod_pocketDim.helpers.DeleteFolder;
import StevenDimDoors.mod_pocketDim.saving.DDSaveHandler;
import StevenDimDoors.mod_pocketDim.saving.IPackable;
import StevenDimDoors.mod_pocketDim.saving.PackedDimData;
import StevenDimDoors.mod_pocketDim.util.Point4D;
import StevenDimDoors.mod_pocketDim.watcher.ClientDimData;
import StevenDimDoors.mod_pocketDim.watcher.IUpdateSource;
@ -25,7 +28,7 @@ import StevenDimDoors.mod_pocketDim.watcher.UpdateWatcherProxy;
*/
public class PocketManager
{
private static class InnerDimData extends NewDimData
private static class InnerDimData extends NewDimData implements IPackable<PackedDimData>
{
// This class allows us to instantiate NewDimData indirectly without exposing
// a public constructor from NewDimData. It's meant to stop us from constructing
@ -43,6 +46,49 @@ public class PocketManager
// This constructor is meant for client-side code only
super(id, root);
}
public void clear()
{
// If this dimension has a parent, remove it from its parent's list of children
if (parent != null)
{
parent.children.remove(this);
}
// Remove this dimension as the parent of its children
for (NewDimData child : children)
{
child.parent = null;
}
// Clear all fields
id = Integer.MIN_VALUE;
linkMapping.clear();
linkMapping = null;
linkList.clear();
linkList = null;
children.clear();
children = null;
isDungeon = false;
isFilled = false;
depth = Integer.MIN_VALUE;
packDepth = Integer.MIN_VALUE;
origin = null;
orientation = Integer.MIN_VALUE;
dungeon = null;
linkWatcher = null;
}
@Override
public String name()
{
return String.valueOf(id);
}
@Override
public PackedDimData pack()
{
// FIXME: IMPLEMENTATION PLZTHX
return null;
}
}
private static class ClientLinkWatcher implements IUpdateWatcher<Point4D>
@ -140,44 +186,44 @@ public class PocketManager
isLoading = false;
}
public boolean clearPocket(NewDimData dimension)
public boolean resetDungeon(NewDimData target)
{
if (!dimension.isPocketDimension() || DimensionManager.getWorld(dimension.id()) != null)
// We can't reset the dimension if it's currently loaded or if it's not a dungeon.
// We cast to InnerDimData so that if anyone tries to be a smartass and create their
// own version of NewDimData, this will throw an exception.
InnerDimData dimension = (InnerDimData) target;
if (dimension.isDungeon() && DimensionManager.getWorld(dimension.id()) == null)
{
return false;
File saveDirectory = new File(DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/pocketDimID" + dimension.id());
if (DeleteFolder.deleteFolder(saveDirectory))
{
dimension.setFilled(false);
return true;
}
}
File save = new File(DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/pocketDimID" + dimension.id());
DeleteFolder.deleteFolder(save);
dimension.setFilled(false);
//FIXME: Reset door information?
return true;
return false;
}
public static boolean deletePocket(NewDimData dimension, boolean deleteFolder)
public static boolean deletePocket(NewDimData target, boolean deleteFolder)
{
//FIXME: Shouldn't the links in and out of this dimension be altered somehow? Otherwise we have links pointing
//into a deleted dimension!
//Checks to see if the pocket is loaded or isn't actually a pocket.
// We can't delete the dimension if it's currently loaded or if it's not actually a pocket.
// We cast to InnerDimData so that if anyone tries to be a smartass and create their
// own version of NewDimData, this will throw an exception.
InnerDimData dimension = (InnerDimData) target;
if (dimension.isPocketDimension() && DimensionManager.getWorld(dimension.id()) == null)
{
dimensionData.remove(dimension.id());
DimensionManager.unregisterDimension(dimension.id());
if (deleteFolder)
{
File save = new File(DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/pocketDimID" + dimension.id());
DeleteFolder.deleteFolder(save);
File saveDirectory = new File(DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/pocketDimID" + dimension.id());
DeleteFolder.deleteFolder(saveDirectory);
}
//Raise the dim deleted event
dimensionData.remove(dimension.id());
// Raise the dim deleted event
dimWatcher.onDeleted(new ClientDimData(dimension));
//dimension.implode()??? -- more like delete, but yeah
dimension.clear();
return true;
}
else
{
return false;
}
return false;
}
private static void registerPockets(DDProperties properties)
@ -222,32 +268,29 @@ public class PocketManager
* loads the dim data from the saved hashMap. Also handles compatibility with old saves, see OldSaveHandler
*/
private static void loadInternal()
{
// SenseiKiwi: This is a temporary function for testing purposes.
// We'll move on to using a text-based format in the future.
{
if (!DimensionManager.getWorld(OVERWORLD_DIMENSION_ID).isRemote &&
DimensionManager.getCurrentSaveRootDirectory() != null)
{
System.out.println("Loading Dimensional Doors save data...");
/*File saveFile = new File(DimensionManager.getCurrentSaveRootDirectory() + "/dimdoors.dat");
// Load and register blacklisted dimension IDs
setState(saveData);*/
System.out.println("Loaded successfully!");
// Load save data
System.out.println("Loading Dimensional Doors save data...");
if (DDSaveHandler.loadAll())
{
System.out.println("Loaded successfully!");
}
}
}
public static void save()
{
// SenseiKiwi: This is a temporary function for testing purposes.
// We'll move on to using a text-based format in the future.
if (!isLoaded)
{
return;
}
World world = DimensionManager.getWorld(OVERWORLD_DIMENSION_ID);
if (world == null || world.isRemote || DimensionManager.getCurrentSaveRootDirectory() != null)
if (world == null || world.isRemote || DimensionManager.getCurrentSaveRootDirectory() == null)
{
return;
}
@ -256,30 +299,23 @@ public class PocketManager
{
return;
}
isSaving = true;
try
{
System.out.println("Writing Dimensional Doors save data...");
/*String tempPath = DimensionManager.getCurrentSaveRootDirectory() + "/dimdoors.tmp";
String savePath = DimensionManager.getCurrentSaveRootDirectory() + "/dimdoors.dat";
File tempFile = new File(tempPath);
File saveFile = new File(savePath);
DataOutputStream writer = new DataOutputStream(new FileOutputStream(tempFile));
getState().writeToStream(writer);
writer.close();
saveFile.delete();
tempFile.renameTo(saveFile);*/
System.out.println("Saved successfully!");
if ( DDSaveHandler.saveAll(dimensionData.values()) )
{
System.out.println("Saved successfully!");
}
}
/*catch (FileNotFoundException e)
catch (Exception e)
{
e.printStackTrace();
// Wrap the exception in a RuntimeException so functions that call
// PocketManager.save() don't need to catch it. We want MC to
// crash if something really bad happens rather than ignoring it!
throw new RuntimeException(e);
}
catch (IOException e)
{
e.printStackTrace();
}*/
finally
{
isSaving = false;

View file

@ -3,11 +3,9 @@ package StevenDimDoors.mod_pocketDim.helpers;
import java.util.List;
import net.minecraft.world.World;
import net.minecraftforge.common.ForgeChunkManager.Ticket;
import net.minecraftforge.common.ForgeChunkManager;
import net.minecraftforge.common.ForgeChunkManager.Ticket;
import StevenDimDoors.mod_pocketDim.mod_pocketDim;
import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoorGold;
import com.google.common.collect.Lists;

View file

@ -33,29 +33,11 @@ import StevenDimDoors.mod_pocketDim.dungeon.pack.DungeonPackConfigReader;
import StevenDimDoors.mod_pocketDim.dungeon.pack.DungeonType;
import StevenDimDoors.mod_pocketDim.items.ItemDimensionalDoor;
import StevenDimDoors.mod_pocketDim.util.ConfigurationProcessingException;
import StevenDimDoors.mod_pocketDim.util.FileFilters;
import StevenDimDoors.mod_pocketDim.util.WeightedContainer;
public class DungeonHelper
{
//TODO: File-handling functionality should be spun off to a helper class later
private static class DirectoryFilter implements FileFilter
{
@Override
public boolean accept(File file)
{
return file.isDirectory();
}
}
private static class SchematicFileFilter implements FileFilter
{
@Override
public boolean accept(File file)
{
return file.isFile() && file.getName().endsWith(SCHEMATIC_FILE_EXTENSION);
}
}
private static DungeonHelper instance = null;
private static DDProperties properties = null;
@ -387,7 +369,7 @@ public class DungeonHelper
File[] packFiles;
ArrayList<String> packFilePaths;
File directory = new File(path);
SchematicFileFilter schematicFileFilter = new SchematicFileFilter();
FileFilter schematicFileFilter = new FileFilters.FileExtensionFilter(SCHEMATIC_FILE_EXTENSION);
//Check that the Ruins pack has been loaded
if (RuinsPack == null)
@ -411,7 +393,7 @@ public class DungeonHelper
schematics = null; //Release memory
//Load the custom dungeon packs
packDirectories = directory.listFiles(new DirectoryFilter());
packDirectories = directory.listFiles(new FileFilters.DirectoryFilter());
if (packDirectories != null)
{
//Loop through each directory, which is assumed to be a dungeon pack

View file

@ -218,10 +218,12 @@ public class yCoordHelper
return target;
}
public static Point3D findDropPoint(World world, int x, int y, int z)
public static Point3D findDropPoint(World world, int x, int startY, int z)
{
/*// Find a simple 2-block-high air gap
// Find a simple 2-block-high air gap
// Search across a 3x3 column
final int GAP_HEIGHT = 2;
int localX = x < 0 ? (x % 16) + 16 : (x % 16);
int localZ = z < 0 ? (z % 16) + 16 : (z % 16);
int cornerX = x - localX;
@ -231,56 +233,45 @@ public class yCoordHelper
Chunk chunk = initializeChunkArea(world, x >> 4, z >> 4);
int y, dx, dz, index;
int height = world.getActualHeight();
int y, dx, dz, blockID;
boolean isSafe;
boolean hasBlocks;
Block block;
int layers = 0;
int[] gaps = new int[9];
// Check if a 3x3 layer of blocks is empty
// If we find a layer that contains replaceable blocks, it can
// serve as the base where we'll place the player and door.
for (y = Math.min(startY + 2, height - 1); y >= 0; y--)
// Check 3x3 layers of blocks for air spaces
for (y = Math.min(startY, height - 1); y > 0; y--)
{
isSafe = true;
hasBlocks = false;
for (dx = -1; dx <= 1 && isSafe; dx++)
for (dx = -1, index = 0; dx <= 1; dx++)
{
for (dz = -1; dz <= 1 && isSafe; dz++)
for (dz = -1; dz <= 1; dz++, index++)
{
blockID = chunk.getBlockID(localX + dx, y, localZ + dz);
if (blockID != 0)
{
block = Block.blocksList[blockID];
if (!block.blockMaterial.isReplaceable())
{
if (layers >= 3)
{
return new Point3D(localX + cornerX, y + 1, localZ + cornerZ);
}
isSafe = false;
}
hasBlocks = true;
if (chunk.getBlockID(localX + dx, y, localZ + dz) != 0)
{
gaps[index] = 0;
}
else
{
gaps[index]++;
}
}
}
if (isSafe)
// Check if an acceptable gap exists in the center of the search column
if (gaps[index / 2] == GAP_HEIGHT)
{
layers++;
if (hasBlocks)
return new Point3D(localX + cornerX, y + GAP_HEIGHT - 1, localZ + cornerZ);
}
// Check the other positions in the column
for (dx = -1, index = 0; dx <= 1; dx++)
{
for (dz = -1; dz <= 1; dz++, index++)
{
if (layers >= 3)
if (gaps[index] == GAP_HEIGHT)
{
return new Point3D(localX + cornerX, y, localZ + cornerZ);
return new Point3D(localX + cornerX + dx, y + GAP_HEIGHT - 1, localZ + cornerZ + dz);
}
layers = 0;
}
}
}
return null;*/
// Temporary measure to not break the build
return new Point3D(x, y - 2, z);
return null;
}
public static int adjustDestinationY(int y, int worldHeight, int entranceY, int dungeonHeight)

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@ -0,0 +1,136 @@
package StevenDimDoors.mod_pocketDim.saving;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import net.minecraftforge.common.DimensionManager;
import StevenDimDoors.mod_pocketDim.util.FileFilters;
import com.google.common.io.Files;
public class DDSaveHandler
{
public static boolean loadAll()
{
// SenseiKiwi: Loading up our save data is not as simple as just reading files.
// To properly restore dimensions, we need to make sure we always load
// a dimension's parent and root before trying to load it. We'll use
// topological sorting to determine the order in which to recreate the
// dimension objects such that we respect those dependencies.
// Links must be loaded after instantiating all the dimensions and must
// be checked against our dimension blacklist.
// Don't surround this code with try-catch. Our mod should crash if an error
// occurs at this level, since it could lead to some nasty problems.
String basePath = DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/data/";
File dataDirectory = new File(basePath);
// Check if the folder exists. If it doesn't, just return.
if (!dataDirectory.exists())
{
return true;
}
// Load the dimension blacklist
// --insert code here--
// List any dimension data files and read each dimension
DimDataProcessor reader = new DimDataProcessor();
List<PackedDimData> packedDims = new ArrayList<PackedDimData>();
FileFilter dataFileFilter = new FileFilters.RegexFileFilter("dim_-?\\d+\\.txt");
File[] dataFiles = dataDirectory.listFiles(dataFileFilter);
for (File dataFile : dataFiles)
{
PackedDimData packedDim = readDimension(dataFile, reader);
}
return true;
}
private static PackedDimData readDimension(File dataFile, DimDataProcessor reader)
{
try
{
return reader.readFromFile(dataFile);
}
catch (Exception e)
{
System.err.println("Could not read dimension data from: " + dataFile.getAbsolutePath());
System.err.println("The following error occurred:");
printException(e, false);
return null;
}
}
public static boolean saveAll(Iterable<? extends IPackable<PackedDimData>> dimensions) throws IOException
{
// Create the data directory for our dimensions
// Don't catch exceptions here. If we can't create this folder,
// the mod should crash to let the user know early on.
String basePath = DimensionManager.getCurrentSaveRootDirectory() + "/DimensionalDoors/data/";
File basePathFile = new File(basePath);
Files.createParentDirs(basePathFile);
basePathFile = null;
basePath += "dim_";
boolean succeeded = true;
DimDataProcessor writer = new DimDataProcessor();
for (IPackable<PackedDimData> dimension : dimensions)
{
succeeded &= writeDimension(dimension, writer, basePath);
}
return succeeded;
}
private static boolean writeDimension(IPackable<PackedDimData> dimension, DimDataProcessor writer, String basePath)
{
try
{
File tempFile = new File(basePath + (dimension.name() + ".tmp"));
File saveFile = new File(basePath + (dimension.name() + ".txt"));
writer.writeToFile(tempFile, dimension.pack());
saveFile.delete();
tempFile.renameTo(saveFile);
return true;
}
catch (Exception e)
{
System.err.println("Could not save data for dimension #" + dimension.name() + ". The following error occurred:");
printException(e, false);
return false;
}
}
private static void printException(Exception e, boolean verbose)
{
if (e.getCause() == null)
{
if (verbose)
{
e.printStackTrace();
}
else
{
System.err.println(e.getMessage());
}
}
else
{
System.out.println(e.getMessage());
System.err.println("Caused by an underlying error:");
if (verbose)
{
e.getCause().printStackTrace();
}
else
{
System.err.println(e.getCause().getMessage());
}
}
}
}

View file

@ -0,0 +1,28 @@
package StevenDimDoors.mod_pocketDim.saving;
import java.io.InputStream;
import java.io.OutputStream;
import StevenDimDoors.mod_pocketDim.util.BaseConfigurationProcessor;
import StevenDimDoors.mod_pocketDim.util.ConfigurationProcessingException;
public class DimDataProcessor extends BaseConfigurationProcessor<PackedDimData>
{
@Override
public PackedDimData readFromStream(InputStream inputStream)
throws ConfigurationProcessingException
{
// TODO Auto-generated method stub
return null;
}
@Override
public void writeToStream(OutputStream outputStream, PackedDimData data)
throws ConfigurationProcessingException
{
// TODO Auto-generated method stub
}
}

View file

@ -0,0 +1,7 @@
package StevenDimDoors.mod_pocketDim.saving;
public interface IPackable<T>
{
public String name();
public T pack();
}

View file

@ -0,0 +1,42 @@
package StevenDimDoors.mod_pocketDim.saving;
import java.util.List;
import StevenDimDoors.mod_pocketDim.Point3D;
public class PackedDimData
{
// These fields will be public since this is a simple data container
public final int ID;
public final boolean IsDungeon;
public final boolean IsFilled;
public final int Depth;
public final int PackDepth;
public final int ParentID;
public final int RootID;
public final Point3D Origin;
public final int Orientation;
public final List<Integer> ChildIDs;
public final List<PackedLinkData> Links;
public final List<PackedLinkTail> Tails;
// FIXME Missing dungeon data, not sure how to include it
public PackedDimData(int id, int depth, int packDepth, int parentID, int rootID, int orientation,
boolean isDungeon, boolean isFilled, Point3D origin, List<Integer> childIDs, List<PackedLinkData> links,
List<PackedLinkTail> tails)
{
ID = id;
Depth = depth;
PackDepth = packDepth;
ParentID = parentID;
RootID = rootID;
Orientation = orientation;
IsDungeon = isDungeon;
IsFilled = isFilled;
Origin = origin;
ChildIDs = childIDs;
Links = links;
Tails = tails;
}
}

View file

@ -0,0 +1,6 @@
package StevenDimDoors.mod_pocketDim.saving;
public class PackedLinkData
{
}

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@ -0,0 +1,6 @@
package StevenDimDoors.mod_pocketDim.saving;
public class PackedLinkTail
{
}

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@ -0,0 +1,51 @@
package StevenDimDoors.mod_pocketDim.util;
import java.io.File;
import java.io.FileFilter;
import java.util.regex.Pattern;
public class FileFilters
{
private FileFilters() { }
public static class DirectoryFilter implements FileFilter
{
@Override
public boolean accept(File file)
{
return file.isDirectory();
}
}
public static class FileExtensionFilter implements FileFilter
{
private final String extension;
public FileExtensionFilter(String extension)
{
this.extension = extension;
}
@Override
public boolean accept(File file)
{
return file.isFile() && file.getName().endsWith(extension);
}
}
public static class RegexFileFilter implements FileFilter
{
private final Pattern pattern;
public RegexFileFilter(String expression)
{
this.pattern = Pattern.compile(expression);
}
@Override
public boolean accept(File file)
{
return file.isFile() && pattern.matcher(file.getName()).matches();
}
}
}