public void run() {
try {
mainLoop();
} catch (Throwable t) {
StringUtil.printException(t);
}
}
/** GoGuiThumbnailer main function. */
public static void main(String[] args) {
try {
String options[] = {
// "check-expire:", // experimental; needs more testing
"config:",
// "expire:", // experimental; needs more testing
"help",
"scale",
"size:",
"verbose",
"version"
};
Options opt = Options.parse(args, options);
if (opt.contains("help")) {
printUsage(System.out);
return;
}
if (opt.contains("version")) {
System.out.println("GoGuiThumbnailer " + Version.get());
return;
}
/*
if (opt.contains("expire"))
{
int seconds = opt.getInteger("expire", 0, 0);
ThumbnailUtil.expire(seconds, false);
return;
}
if (opt.contains("check-expire"))
{
int seconds = opt.getInteger("expire", 0, 0);
ThumbnailUtil.expire(seconds, true);
return;
} */
boolean verbose = opt.contains("verbose");
boolean scale = opt.contains("scale");
ArrayList<String> arguments = opt.getArguments();
if (arguments.isEmpty() || arguments.size() > 2) {
printUsage(System.err);
System.exit(1);
}
File input = new File(arguments.get(0));
File output = null;
if (arguments.size() == 2) output = new File(arguments.get(1));
int size = opt.getInteger("size", 128, 1);
ThumbnailCreator thumbnailCreator = new ThumbnailCreator(verbose);
try {
thumbnailCreator.create(input, output, size, scale);
} catch (ThumbnailCreator.Error e) {
System.err.println(e.getMessage());
System.exit(1);
}
} catch (Throwable t) {
StringUtil.printException(t);
System.exit(1);
}
}
/**
* Constructor.
*
* @param program Command line for program. Will be split into words with respect to " as in
* StringUtil.tokenize. If the command line contains the string "%SRAND", it will be replaced
* by a random seed. This is useful if the random seed can be set by a command line option to
* produce deterministic randomness (the command returned by getProgramCommand() will contain
* the actual random seed used).
* @param workingDirectory The working directory to run the program in or null for the current
* directory
* @param log Log input, output and error stream to standard error.
* @param callback Callback for external display of the streams.
*/
public GtpClient(String program, File workingDirectory, boolean log, IOCallback callback)
throws GtpClient.ExecFailed {
if (workingDirectory != null && !workingDirectory.isDirectory())
throw new ExecFailed(program, "Invalid working directory \"" + workingDirectory + "\"");
m_log = log;
m_callback = callback;
m_wasKilled = false;
if (program.indexOf("%SRAND") >= 0) {
// RAND_MAX in stdlib.h ist at least 32767
int randMax = 32767;
int rand = (int) (Math.random() * (randMax + 1));
program = program.replaceAll("%SRAND", Integer.toString(rand));
}
m_program = program;
if (StringUtil.isEmpty(program))
throw new ExecFailed(program, "Command for invoking Go program must be" + " not empty.");
Runtime runtime = Runtime.getRuntime();
try {
// Create command array with StringUtil::splitArguments
// because Runtime.exec(String) uses a default StringTokenizer
// which does not respect ".
String[] cmdArray = StringUtil.splitArguments(program);
// Make file name absolute, if working directory is not current
// directory. With Java 1.5, it seems that Runtime.exec succeeds
// if the relative path is valid from the current, but not from
// the given working directory, but the process is not usable
// (reading from its input stream immediately returns
// end-of-stream)
if (cmdArray.length > 0) {
File file = new File(cmdArray[0]);
// Only replace if executable is a path to a file, not
// an executable in the exec-path
if (file.exists()) cmdArray[0] = file.getAbsolutePath();
}
m_process = runtime.exec(cmdArray, null, workingDirectory);
} catch (IOException e) {
throw new ExecFailed(program, e);
}
init(m_process.getInputStream(), m_process.getOutputStream(), m_process.getErrorStream());
}
public void run() {
try {
char[] buffer = new char[4096];
while (true) {
int n;
try {
n = m_in.read(buffer);
} catch (IOException e) {
return;
}
if (n <= 0) return;
String text = new String(buffer, 0, n);
if (m_callback != null) m_callback.receivedStdErr(text);
if (m_log) logError(text);
}
} catch (Throwable t) {
StringUtil.printException(t);
}
}
/** Return a string containing information and statistics of the subtree of a node. */
public static String treeInfo(ConstNode node) {
int numberNodes = 0;
int numberTerminal = 0;
int moreThanOneChild = 0;
int maxDepth = 0;
int maxChildren = 0;
double averageDepth = 0;
double averageChildren = 0;
double averageChildrenInner = 0;
int rootDepth = getDepth(node);
while (node != null) {
++numberNodes;
int numberChildren = node.getNumberChildren();
int depth = getDepth(node) - rootDepth;
assert depth >= 0;
if (depth > maxDepth) maxDepth = depth;
if (numberChildren > maxChildren) maxChildren = numberChildren;
if (numberChildren == 0) ++numberTerminal;
else averageChildrenInner += numberChildren;
if (numberChildren > 1) ++moreThanOneChild;
averageDepth += depth;
averageChildren += numberChildren;
node = nextNode(node, rootDepth);
}
int numberInner = numberNodes - numberTerminal;
averageDepth /= numberNodes;
averageChildren /= numberNodes;
averageChildrenInner /= Math.max(numberInner, 1);
NumberFormat format = StringUtil.getNumberFormat(3);
format.setMinimumFractionDigits(3);
StringBuilder buffer = new StringBuilder();
appendInfo(buffer, "Nodes", numberNodes);
appendInfo(buffer, "Terminal", numberTerminal);
appendInfo(buffer, "Inner", numberInner);
appendInfo(buffer, "AvgDepth", format.format(averageDepth));
appendInfo(buffer, "MaxDepth", maxDepth);
appendInfo(buffer, "AvgChildren", format.format(averageChildren));
appendInfo(buffer, "AvgChildrenInner", format.format(averageChildrenInner));
appendInfo(buffer, "MaxChildren", maxChildren);
appendInfo(buffer, "MoreThanOneChild", moreThanOneChild);
return buffer.toString();
}
/**
* Get first node of a given variation. Searches the node that can be reached from the root node
* by taking the children defined by the integers in the variation string for nodes with more than
* one child.
*
* @param root The root node of the tree.
* @param variation The variation string (e.g. "1.1.3.1.5").
* @return The first node of the given variation, or the root node, if the variation string is
* empty, or <code>null</code>, if the variation string is invalid or does not specify a node
* in the given tree.
*/
public static ConstNode findByVariation(ConstNode root, String variation) {
if (variation.trim().equals("")) return root;
String[] tokens = StringUtil.split(variation, '.');
int[] n = new int[tokens.length];
for (int i = 0; i < tokens.length; ++i) {
try {
n[i] = Integer.parseInt(tokens[i]) - 1;
if (n[i] < 0) return null;
} catch (NumberFormatException e) {
return null;
}
}
ConstNode node = root;
for (int i = 0; i < n.length; ++i) {
while (node.getNumberChildren() <= 1) {
node = node.getChildConst();
if (node == null) return null;
}
if (n[i] >= node.getNumberChildren()) return null;
node = node.getChildConst(n[i]);
}
return node;
}
