import java.util.*; import java.util.zip.*; import java.util.List; import java.util.regex.*; import java.util.concurrent.*; import java.util.concurrent.atomic.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import java.io.*; import java.net.*; import java.lang.reflect.*; import java.lang.ref.*; import java.lang.management.*; import java.security.*; import java.security.spec.*; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.imageio.*; import java.math.*; import net.sf.javaml.classification.*; import net.sf.javaml.core.*; import net.sf.javaml.tools.data.*; public class main { // java ml and dependencies public static void main(String[] args) throws Exception { File irisCSV = loadLibrary("#1002541"); /* Load a data set */ Dataset data = FileHandler.loadDataset(irisCSV, 4, ","); /* Construct a KNN classifier that uses 5 neighbors to make a * decision. */ Classifier knn = new KNearestNeighbors(5); knn.buildClassifier(data); Dataset dataForClassification = FileHandler.loadDataset(irisCSV, 4, ","); /* Counters for correct and wrong predictions. */ int correct = 0, wrong = 0; /* Classify all instances and check with the correct class values */ for (Instance inst : dataForClassification) { Object predictedClassValue = knn.classify(inst); Object realClassValue = inst.classValue(); if (predictedClassValue.equals(realClassValue)) correct++; else wrong++; } print("correct=" + correct + ", wrong=" + wrong); } static File loadLibrary(String snippetID) { return loadBinarySnippet(snippetID); } static volatile StringBuffer local_log = new StringBuffer(); // not redirected static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot // in bytes - will cut to half that static volatile int print_log_max = 1024*1024; static volatile int local_log_max = 100*1024; //static int print_maxLineLength = 0; // 0 = unset static boolean print_silent; // total mute if set static void print() { print(""); } // slightly overblown signature to return original object... static A print(A o) { if (print_silent) return o; String s = String.valueOf(o) + "\n"; // TODO if (print_maxLineLength != 0) StringBuffer loc = local_log; StringBuffer buf = print_log; int loc_max = print_log_max; if (buf != loc && buf != null) { print_append(buf, s, print_log_max); loc_max = local_log_max; } if (loc != null) print_append(loc, s, loc_max); System.out.print(s); return o; } static void print(long l) { print(String.valueOf(l)); } static void print(char c) { print(String.valueOf(c)); } static void print_append(StringBuffer buf, String s, int max) { synchronized(buf) { buf.append(s); max /= 2; if (buf.length() > max) try { int newLength = max/2; int ofs = buf.length()-newLength; String newString = buf.substring(ofs); buf.setLength(0); buf.append("[...] ").append(newString); } catch (Exception e) { buf.setLength(0); } } } static File loadBinarySnippet(String snippetID) { try { long id = parseSnippetID(snippetID); File f = DiskSnippetCache_getLibrary(id); if (f == null) { byte[] data = loadDataSnippetImpl(snippetID); DiskSnippetCache_putLibrary(id, data); f = DiskSnippetCache_getLibrary(id); } return f; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} // Data files are immutable, use centralized cache public static File DiskSnippetCache_getLibrary(long snippetID) throws IOException { File file = new File(getGlobalCache(), "data_" + snippetID + ".jar"); return file.exists() ? file : null; } public static void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException { saveBinaryFile(new File(getGlobalCache(), "data_" + snippetID).getPath() + ".jar", data); } static byte[] loadDataSnippetImpl(String snippetID) throws IOException { byte[] data; try { URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + parseSnippetID(snippetID) + "&contentType=application/binary"); System.err.println("Loading library: " + url); try { data = loadBinaryPage(url.openConnection()); } catch (RuntimeException e) { data = null; } if (data == null || data.length == 0) { url = new URL("http://data.tinybrain.de/blobs/" + parseSnippetID(snippetID)); System.err.println("Loading library: " + url); data = loadBinaryPage(url.openConnection()); } System.err.println("Bytes loaded: " + data.length); } catch (FileNotFoundException e) { throw new IOException("Binary snippet #" + snippetID + " not found or not public"); } return data; } public static long parseSnippetID(String snippetID) { long id = Long.parseLong(shortenSnippetID(snippetID)); if (id == 0) throw fail("0 is not a snippet ID"); return id; } static RuntimeException fail() { throw new RuntimeException("fail"); } static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); } static RuntimeException fail(String msg) { throw new RuntimeException(unnull(msg)); } // disabled for now to shorten some programs /*static RuntimeException fail(S msg, O... args) { throw new RuntimeException(format(msg, args)); }*/ static File getGlobalCache() { File file = new File(userHome(), ".tinybrain/snippet-cache"); file.mkdirs(); return file; } static byte[] loadBinaryPage(String url) { try { return loadBinaryPage(new URL(url).openConnection()); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} public static byte[] loadBinaryPage(URLConnection con) { try { //setHeaders(con); ByteArrayOutputStream buf = new ByteArrayOutputStream(); InputStream inputStream = con.getInputStream(); int n = 0; while (true) { int ch = inputStream.read(); if (ch < 0) break; buf.write(ch); if (++n % 100000 == 0) System.err.println(" " + n + " bytes loaded."); } inputStream.close(); return buf.toByteArray(); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static String shortenSnippetID(String snippetID) { if (snippetID.startsWith("#")) snippetID = snippetID.substring(1); String httpBlaBla = "http://tinybrain.de/"; if (snippetID.startsWith(httpBlaBla)) snippetID = snippetID.substring(httpBlaBla.length()); return "" + parseLong(snippetID); } /** writes safely (to temp file, then rename) */ public static void saveBinaryFile(String fileName, byte[] contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; FileOutputStream fileOutputStream = new FileOutputStream(tempFileName); fileOutputStream.write(contents); fileOutputStream.close(); if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } static void saveBinaryFile(File fileName, byte[] contents) { try { saveBinaryFile(fileName.getPath(), contents); } catch (IOException e) { throw new RuntimeException(e); } } static String unnull(String s) { return s == null ? "" : s; } static List unnull(List l) { return l == null ? emptyList() : l; } static Iterable unnull(Iterable i) { return i == null ? emptyList() : i; } static Object[] unnull(Object[] a) { return a == null ? new Object[0] : a; } static String _userHome; static String userHome() { if (_userHome == null) { if (isAndroid()) _userHome = "/storage/sdcard0/"; else _userHome = System.getProperty("user.home"); //System.out.println("userHome: " + _userHome); } return _userHome; } static File userHome(String path) { return new File(userDir(), path); } static long parseLong(String s) { if (s == null) return 0; return Long.parseLong(dropSuffix("L", s)); } static long parseLong(Object s) { return Long.parseLong((String) s); } static String dropSuffix(String suffix, String s) { return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s; } static List emptyList() { return new ArrayList(); //ret Collections.emptyList(); } static File userDir() { return new File(userHome()); } static File userDir(String path) { return new File(userHome(), path); } static boolean isAndroid() { return System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0; } static int l(Object[] a) { return a == null ? 0 : a.length; } static int l(byte[] a) { return a == null ? 0 : a.length; } static int l(int[] a) { return a == null ? 0 : a.length; } static int l(float[] a) { return a == null ? 0 : a.length; } static int l(char[] a) { return a == null ? 0 : a.length; } static int l(Collection c) { return c == null ? 0 : c.size(); } static int l(Map m) { return m == null ? 0 : m.size(); } static int l(CharSequence s) { return s == null ? 0 : s.length(); } static int l(Object o) { return l((List) o); // incomplete } }