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import java.math.*;
import javax.imageio.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.*;
import java.security.spec.*;
import java.security.*;
import java.lang.management.*;
import java.lang.ref.*;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import javax.swing.table.*;
import javax.swing.text.*;
import javax.swing.event.*;
import javax.swing.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.*;
import java.util.regex.*;
import java.util.List;
import java.util.zip.*;
import java.util.*;
public class main {
public static void main(String[] args) throws Exception {
if (isLinux())
print(backtick("df -hi " + bashQuote(userHome())));
}
static boolean isLinux() {
return !isWindows() && !isMac() && !isAndroid();
}
static int backtick_exitValue;
static boolean backtick_verbose;
public static String backtick(String cmd) throws IOException {
File outFile = File.createTempFile("_backtick", "");
File scriptFile = File.createTempFile("_backtick", isWindows() ? ".bat" : "");
String command = cmd + " >" + bashQuote(outFile.getPath()) + " 2>&1";
//Log.info("[Backtick] " + command);
try {
if (backtick_verbose)
print("backtick: command " + command);
saveTextFile(scriptFile.getPath(), command);
String[] command2;
if (isWindows())
command2 = new String[] { scriptFile.getPath() };
else
command2 = new String[] { "/bin/bash", scriptFile.getPath() };
if (backtick_verbose)
print("backtick: command2 " + structure(command2));
Process process = Runtime.getRuntime().exec(command2);
try {
process.waitFor();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
backtick_exitValue = process.exitValue();
if (backtick_verbose)
System.out.println("Process return code: " + backtick_exitValue);
return loadTextFile(outFile.getPath(), "");
} finally {
scriptFile.delete();
}
}
/** possibly improvable */
public static String bashQuote(String text) {
if (text == null) return null;
return "\"" + text
.replace("\\", "\\\\")
.replace("\"", "\\\"")
.replace("\n", "\\n")
.replace("\r", "\\r") + "\"";
}
static StringBuffer print_log;
static void print() {
print("");
}
static void print(Object o) {
String s = String.valueOf(o) + "\n";
synchronized(StringBuffer.class) {
if (print_log == null) print_log = new StringBuffer();
}
print_log.append(s);
System.out.print(s);
}
static void print(long l) {
print(String.valueOf(l));
}
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 boolean isMac() {
return System.getProperty("os.name").toLowerCase().contains("mac");
}
static boolean isAndroid() { return System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0; }
public static boolean isWindows() {
return System.getProperty("os.name").contains("Windows");
}
/** writes safely (to temp file, then rename) */
public static void saveTextFile(String fileName, String contents) throws IOException {
File file = new File(fileName);
File parentFile = file.getParentFile();
if (parentFile != null)
parentFile.mkdirs();
String tempFileName = fileName + "_temp";
if (contents != null) {
FileOutputStream fileOutputStream = new FileOutputStream(tempFileName);
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
PrintWriter printWriter = new PrintWriter(outputStreamWriter);
printWriter.print(contents);
printWriter.close();
}
if (file.exists() && !file.delete())
throw new IOException("Can't delete " + fileName);
if (contents != null)
if (!new File(tempFileName).renameTo(file))
throw new IOException("Can't rename " + tempFileName + " to " + fileName);
}
public static void saveTextFile(File fileName, String contents) {
try {
saveTextFile(fileName.getPath(), contents);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static String loadTextFile(String fileName) {
try {
return loadTextFile(fileName, null);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static String loadTextFile(String fileName, String defaultContents) throws IOException {
if (!new File(fileName).exists())
return defaultContents;
FileInputStream fileInputStream = new FileInputStream(fileName);
InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
return loadTextFile(inputStreamReader);
}
public static String loadTextFile(File fileName) {
try {
return loadTextFile(fileName, null);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static String loadTextFile(File fileName, String defaultContents) throws IOException {
try {
return loadTextFile(fileName.getPath(), defaultContents);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static String loadTextFile(Reader reader) throws IOException {
StringBuilder builder = new StringBuilder();
try {
char[] buffer = new char[1024];
int n;
while (-1 != (n = reader.read(buffer)))
builder.append(buffer, 0, n);
} finally {
reader.close();
}
return builder.toString();
}
static String structure(Object o) {
return structure(o, 0);
}
// leave to false, unless unstructure() breaks
static boolean structure_allowShortening = false;
static String structure(Object o, int stringSizeLimit) {
if (o == null) return "null";
String name = o.getClass().getName();
StringBuilder buf = new StringBuilder();
if (o instanceof Collection) { // TODO: store the type (e.g. HashSet/TreeSet)
for (Object x : (Collection) o) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(x, stringSizeLimit));
}
return "[" + buf + "]";
}
if (o instanceof Map) {
for (Object e : ((Map) o).entrySet()) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(((Map.Entry) e).getKey(), stringSizeLimit));
buf.append("=");
buf.append(structure(((Map.Entry) e).getValue(), stringSizeLimit));
}
return "{" + buf + "}";
}
if (o.getClass().isArray()) {
int n = Array.getLength(o);
for (int i = 0; i < n; i++) {
if (buf.length() != 0) buf.append(", ");
buf.append(structure(Array.get(o, i), stringSizeLimit));
}
return "array{" + buf + "}";
}
if (o instanceof String)
return quote(stringSizeLimit != 0 ? shorten((String) o, stringSizeLimit) : (String) o);
if (o instanceof Class)
return "class(" + quote(((Class) o).getName()) + ")";
if (o instanceof Throwable)
return "exception(" + quote(((Throwable) o).getMessage()) + ")";
if (o instanceof BigInteger)
return "bigint(" + o + ")";
// Need more cases? This should cover all library classes...
if (name.startsWith("java.") || name.startsWith("javax."))
return String.valueOf(o);
String shortName = o.getClass().getName().replaceAll("^main\\$", "");
int numFields = 0;
String fieldName = "";
if (shortName.equals("DynamicObject")) {
shortName = (String) get(o, "className");
Map fieldValues = (Map) get(o, "fieldValues");
for (String _fieldName : fieldValues.keySet()) {
fieldName = _fieldName;
Object value = fieldValues.get(fieldName);
if (value != null) {
if (buf.length() != 0) buf.append(", ");
buf.append(fieldName + "=" + structure(value, stringSizeLimit));
}
++numFields;
}
} else {
// regular class
// TODO: go to superclasses too
Field[] fields = o.getClass().getDeclaredFields();
for (Field field : fields) {
if ((field.getModifiers() & Modifier.STATIC) != 0)
continue;
Object value;
try {
field.setAccessible(true);
value = field.get(o);
} catch (Exception e) {
value = "?";
}
fieldName = field.getName();
// put special cases here...
if (value != null) {
if (buf.length() != 0) buf.append(", ");
buf.append(fieldName + "=" + structure(value, stringSizeLimit));
}
++numFields;
}
}
String b = buf.toString();
if (numFields == 1 && structure_allowShortening)
b = b.replaceAll("^" + fieldName + "=", ""); // drop field name if only one
String s = shortName;
if (buf.length() != 0)
s += "(" + b + ")";
return s;
}
static String quote(String s) {
if (s == null) return "null";
return "\"" + s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\r", "\\r").replace("\n", "\\n") + "\"";
}
static String quote(long l) {
return quote("" + l);
}
// get purpose 1: access a list (safer version of x.get(y))
static A get(List l, int idx) {
return idx >= 0 && idx < l(l) ? l.get(idx) : null;
}
// get purpose 2: access a field by reflection
static Object get(Object o, String field) {
if (o instanceof Class) return get((Class) o, field);
if (o.getClass().getName().equals("main$DynamicObject"))
return call(get_raw(o, "fieldValues"), "get", field);
return get_raw(o, field);
}
static Object get_raw(Object o, String field) {
try {
Field f = get_findField(o.getClass(), field);
f.setAccessible(true);
return f.get(o);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
static Object get(Class c, String field) {
try {
Field f = get_findStaticField(c, field);
f.setAccessible(true);
return f.get(null);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
static Field get_findStaticField(Class c, String field) {
for (Field f : c.getDeclaredFields())
if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
return f;
throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}
static Field get_findField(Class c, String field) {
for (Field f : c.getDeclaredFields())
if (f.getName().equals(field))
return f;
throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
static String shorten(String s, int max) {
return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
}
static int l(Object[] array) {
return array == null ? 0 : array.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(String s) {
return s == null ? 0 : s.length();
}
// varargs assignment fixer for a single string array argument
static Object call(Object o, String method, String[] arg) {
return call(o, method, new Object[] {arg});
}
static Object call(Object o, String method, Object... args) {
try {
if (o instanceof Class) {
Method m = call_findStaticMethod((Class) o, method, args, false);
m.setAccessible(true);
return m.invoke(null, args);
} else {
Method m = call_findMethod(o, method, args, false);
m.setAccessible(true);
return m.invoke(o, args);
}
} catch (Exception e) {
throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
}
}
static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
Class _c = c;
while (c != null) {
for (Method m : c.getDeclaredMethods()) {
if (debug)
System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
if (!m.getName().equals(method)) {
if (debug) System.out.println("Method name mismatch: " + method);
continue;
}
if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug))
continue;
return m;
}
c = c.getSuperclass();
}
throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName());
}
static Method call_findMethod(Object o, String method, Object[] args, boolean debug) {
Class c = o.getClass();
while (c != null) {
for (Method m : c.getDeclaredMethods()) {
if (debug)
System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
if (m.getName().equals(method) && call_checkArgs(m, args, debug))
return m;
}
c = c.getSuperclass();
}
throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName());
}
private static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
Class[] types = m.getParameterTypes();
if (types.length != args.length) {
if (debug)
System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
return false;
}
for (int i = 0; i < types.length; i++)
if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
if (debug)
System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
return false;
}
return true;
}
// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
if (type == boolean.class) return arg instanceof Boolean;
if (type == int.class) return arg instanceof Integer;
if (type == long.class) return arg instanceof Long;
if (type == float.class) return arg instanceof Float;
if (type == short.class) return arg instanceof Short;
if (type == char.class) return arg instanceof Character;
if (type == byte.class) return arg instanceof Byte;
if (type == double.class) return arg instanceof Double;
return type.isInstance(arg);
}
}