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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.blocks;

import org.jgroups.annotations.Experimental;

import java.io.*;

/**
 * Entry point for GridFile and GridInputStream / GridOutputStream
 * @author Bela Ban
 */
@Experimental
public class GridFilesystem {
    protected final ReplCache             data;
    protected final ReplCache  metadata;
    protected final int                                  default_chunk_size;
    protected final short                                default_repl_count;



    /**
     * Creates an instance. The data and metadata caches should already have been setup and started
     * @param data
     * @param metadata
     * @param default_chunk_size
     */
    public GridFilesystem(ReplCache data, ReplCache metadata,
                          short default_repl_count, int default_chunk_size) {
        this.data=data;
        this.metadata=metadata;
        this.default_chunk_size=default_chunk_size;
        this.default_repl_count=default_repl_count;
    }

    public GridFilesystem(ReplCache data, ReplCache metadata) {
        this(data, metadata, (short)1, 8000);
    }

    public File getFile(String pathname) {
        return getFile(pathname, default_chunk_size);
    }

    public File getFile(String pathname, int chunk_size) {
        return new GridFile(pathname, metadata, chunk_size, this);
    }

    public File getFile(String parent, String child) {
        return getFile(parent, child, default_chunk_size);
    }

    public File getFile(String parent, String child, int chunk_size) {
        return new GridFile(parent, child, metadata, chunk_size, this);
    }

    public File getFile(File parent, String child) {
        return getFile(parent, child, default_chunk_size);
    }

    public File getFile(File parent, String child, int chunk_size) {
        return new GridFile(parent, child, metadata, chunk_size, this);
    }

    public OutputStream getOutput(String pathname) throws IOException {
        return getOutput(pathname, false, default_repl_count, default_chunk_size);
    }

    public OutputStream getOutput(String pathname, boolean append) throws IOException {
        return getOutput(pathname, append, default_repl_count, default_chunk_size);
    }

    public OutputStream getOutput(String pathname, boolean append, short repl_count, int chunk_size) throws IOException {
        GridFile file=(GridFile)getFile(pathname, chunk_size);
        if(!file.createNewFile())
            throw new IOException("creation of " + pathname + " failed");

        return new GridOutputStream(file, append, data, repl_count, chunk_size);
    }

    public OutputStream getOutput(GridFile file) throws IOException {
        if(!file.createNewFile())
            throw new IOException("creation of " + file + " failed");
        return new GridOutputStream(file, false, data, default_repl_count, default_chunk_size);
    }
    


    public InputStream getInput(String pathname) throws FileNotFoundException {
        GridFile file=(GridFile)getFile(pathname);
        if(!file.exists())
            throw new FileNotFoundException(pathname);
        return new GridInputStream(file, data, default_chunk_size);
    }

    public InputStream getInput(File pathname) throws FileNotFoundException {
        return pathname != null? getInput(pathname.getPath()) : null;
    }


    public void remove(String path, boolean synchronous) {
        if(path == null)
            return;
        GridFile.Metadata md=metadata.get(path);
        if(md == null)
            return;
        int num_chunks=md.getLength() / md.getChunkSize() + 1;
        for(int i=0; i < num_chunks; i++)
            data.remove(path + ".#" + i, synchronous);
    }
}