com.sproutigy.commons.binary.impl.FileBinary Maven / Gradle / Ivy

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package com.sproutigy.commons.binary.impl;

import com.sproutigy.commons.binary.Binary;
import com.sproutigy.commons.binary.BinaryException;

import java.io.*;

/**
 * @author LukeAheadNET
 */
public class FileBinary extends AbstractStreamableBinary {

    private File file;


    public FileBinary(String path) {
        this(new File(path));
    }

    public FileBinary(File file) {
        super(file.length());
        this.file = file;
    }

    @Override
    public boolean equals(Object other) {
        if (other instanceof FileBinary) {
            if (getFile().equals(((FileBinary) other).getFile())) {
                return true;
            }
        }

        return super.equals(other);
    }

    public String getPathString() {
        return file.getPath();
    }

    public File getFile() {
        return file;
    }

    @Override
    public Binary subrange(long offset, long length) throws BinaryException {
        try {
            final RandomAccessFile randomAccessFile = new RandomAccessFile(getFile(), "r");
            try {
                randomAccessFile.seek(offset);
                InputStream streamAdapter = new InputStream() {
                    @Override
                    public int read() {
                        try {
                            return randomAccessFile.read();
                        } catch (IOException e) {
                            throw new BinaryException(e);
                        }
                    }
                };
                return Binary.fromByteArray(readBytesFromStream(streamAdapter, length));
            } finally {
                randomAccessFile.close();
            }
        } catch(IOException e) {
            throw new BinaryException(e);
        }
    }

    @Override
    public InputStream asStream() throws BinaryException {
        try {
            return new FileInputStream(file);
        } catch (FileNotFoundException e) {
            throw new BinaryException(e);
        }
    }

    @Override
    public String toString() {
        return file.getPath();
    }
}