diff options
Diffstat (limited to 'tests/sketch/tools/Converter.java')
| -rw-r--r-- | tests/sketch/tools/Converter.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/tests/sketch/tools/Converter.java b/tests/sketch/tools/Converter.java new file mode 100644 index 0000000..b4654f8 --- /dev/null +++ b/tests/sketch/tools/Converter.java @@ -0,0 +1,222 @@ +import java.io.File; +import java.io.BufferedReader; +import java.io.FileReader; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.Closeable; +import java.io.DataOutputStream; +import java.io.FileOutputStream; +import java.io.DataInputStream; +import java.io.FileInputStream; +import java.io.BufferedInputStream; + +/** + * Converts text-based letter stores to binary-based stores. + */ +public class Converter { + private final File mFile; + + Converter(File file) { + mFile = file; + } + + private void convert() { + boolean read = false; + + String[] classes = null; + int iCount = 0; + int hCount = 0; + int oCount = 0; + float[][] iWeights = null; + float[][] oWeights = null; + + BufferedReader reader = null; + + try { + reader = new BufferedReader(new FileReader(mFile)); + + long start = System.nanoTime(); + + String line = reader.readLine(); + int startIndex = 0; + int endIndex; + endIndex = line.indexOf(" ", startIndex); + iCount = Integer.parseInt(line.substring(startIndex, endIndex)); + + startIndex = endIndex + 1; + endIndex = line.indexOf(" ", startIndex); + hCount = Integer.parseInt(line.substring(startIndex, endIndex)); + + startIndex = endIndex + 1; + endIndex = line.length(); + oCount = Integer.parseInt(line.substring(startIndex, endIndex)); + + classes = new String[oCount]; + line = reader.readLine(); + startIndex = 0; + + for (int i = 0; i < oCount; i++) { + endIndex = line.indexOf(" ", startIndex); + classes[i] = line.substring(startIndex, endIndex); + startIndex = endIndex + 1; + } + + iWeights = new float[hCount][]; + for (int i = 0; i < hCount; i++) { + iWeights[i] = new float[iCount]; + line = reader.readLine(); + startIndex = 0; + for (int j = 0; j < iCount; j++) { + endIndex = line.indexOf(" ", startIndex); + iWeights[i][j] = Float.parseFloat(line.substring(startIndex, endIndex)); + startIndex = endIndex + 1; + } + } + + oWeights = new float[oCount][]; + for (int i = 0; i < oCount; i++) { + oWeights[i] = new float[hCount]; + line = reader.readLine(); + startIndex = 0; + for (int j = 0; j < hCount; j++) { + endIndex = line.indexOf(" ", startIndex); + oWeights[i][j] = Float.parseFloat(line.substring(startIndex, endIndex)); + startIndex = endIndex + 1; + } + } + + long end = System.nanoTime(); + System.out.println("time to read text file = " + + ((end - start) / 1000.0f / 1000.0f) + " ms"); + + read = true; + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } finally { + close(reader); + } + + if (read) { + boolean wrote = false; + DataOutputStream out = null; + + try { + out = new DataOutputStream(new FileOutputStream(mFile)); + + out.writeInt(iCount); + out.writeInt(hCount); + out.writeInt(oCount); + + for (String aClass : classes) { + out.writeUTF(aClass); + } + + for (float[] weights : iWeights) { + for (float weight : weights) { + out.writeFloat(weight); + } + } + + for (float[] weights : oWeights) { + for (float weight : weights) { + out.writeFloat(weight); + } + } + + out.flush(); + + wrote = true; + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } finally { + close(out); + } + + if (wrote) { + DataInputStream in = null; + + try { + in = new DataInputStream(new BufferedInputStream(new FileInputStream(mFile))); + + long start = System.nanoTime(); + + iCount = in.readInt(); + hCount = in.readInt(); + oCount = in.readInt(); + + classes = new String[oCount]; + for (int i = 0; i < classes.length; i++) { + classes[i] = in.readUTF(); + } + + iWeights = new float[hCount][]; + for (int i = 0; i < iWeights.length; i++) { + iWeights[i] = new float[iCount]; + for (int j = 0; j < iCount; j++) { + iWeights[i][j] = in.readFloat(); + } + } + + oWeights = new float[oCount][]; + for (int i = 0; i < oWeights.length; i++) { + oWeights[i] = new float[hCount]; + for (int j = 0; j < hCount; j++) { + oWeights[i][j] = in.readFloat(); + } + } + + long end = System.nanoTime(); + System.out.println("time to read binary file = " + + ((end - start) / 1000.0f / 1000.0f) + " ms"); + + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } finally { + close(in); + } + } + } + } + + private static void close(Closeable reader) { + if (reader != null) { + try { + reader.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + } + + public static void main(String[] args) { + String fileName = args[0]; + if (fileName != null) { + File file = new File(fileName); + if (!file.exists()) { + printHelp(fileName); + } else { + new Converter(file).convert(); + } + } else { + printHelp(null); + } + } + + private static void printHelp(String name) { + if (name == null) { + System.out.println("You must specify the name of the file to convert:"); + } else { + System.out.println("The specified file does not exist: " + name); + } + System.out.println("java Converter [filename]"); + System.out.println(""); + System.out.println("\t[filename]\tPath to the file to convert. The file is replaced by " + + "the conversion result."); + } +}
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