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-rw-r--r--logo/src/Lanceur.java148
1 files changed, 74 insertions, 74 deletions
diff --git a/logo/src/Lanceur.java b/logo/src/Lanceur.java
index 3298c55..205e161 100644
--- a/logo/src/Lanceur.java
+++ b/logo/src/Lanceur.java
@@ -24,7 +24,7 @@
/** Title : XLogo
* Description : XLogo is an interpreter for the Logo
* programming language
- *
+ *
* @author Loïc Le Coq */
import java.io.*;
@@ -34,15 +34,15 @@ import java.util.Calendar;
/**
* @author loic
- *
+ *
* This class extracts the file tmp_xlogo.jar from the main archive
* in the temporary file's directory
* and then launch the command: <br>
* java -D-jar -Xmx64m -Djava.library.path=path_to_tmp -cp path_to_tmp
* tmp_xlogo.jar<br>
* <br>
- * XLogo executes with a predefined heap size for the Virtual Machine *
- *
+ * XLogo executes with a predefined heap size for the Virtual Machine *
+ *
* @author Marko Zivkovic
* The maximum heap size property is now fixed 128MB. In the future, the application preferences should be used.
* Command line arguments are ignored, because this application is GUI-based and for
@@ -50,7 +50,7 @@ import java.util.Calendar;
*/
public class Lanceur {
private static int DEFAULT_MEMORY_ALLOC = 128;
-
+
/**
* The process which contains the XLogo application
*/
@@ -59,48 +59,48 @@ public class Lanceur {
* The temporary folder which contains all files to start XLogo
*/
private File tmpFolder = null;
-
+
/**
* Main method
- *
+ *
* @param args
* The path toward "lgo" files
*/
- public static void main(String[] args) {
+ public static void main(final String[] args) {
new Lanceur();
}
-
+
Lanceur() {
// Look for old files from XLogo crash
cleanTmp();
// Look for the memory that should be allocated to the JVM heap size
//Preferences prefs = Preferences.systemRoot().node(PROPERTIES_PREFIX); TODO this does not work ... :-(
//int memory = prefs.getInt("appMemory", DEFAULT_MEMORY_ALLOC);
- int memory = DEFAULT_MEMORY_ALLOC;
-
+ final int memory = DEFAULT_MEMORY_ALLOC;
+
// extract application in the java.io.tmp directory
extractApplication();
startApplicationProcess(memory);
restorePath();
deleteTmpFiles();
}
-
- private void startApplicationProcess(int memoire) {
+
+ private void startApplicationProcess(final int memoire) {
try {
// Add the tmp to the path
- String newPath = tmpFolder.getAbsolutePath();
-
+ final String newPath = tmpFolder.getAbsolutePath();
+
String javaLibraryPath = newPath + File.pathSeparatorChar + System.getProperty("java.library.path");
// Bug when launching under Windows with java webstart
javaLibraryPath = javaLibraryPath.replaceAll("\"", "");
System.out.println("Path: " + javaLibraryPath + "\n");
- String[] commande = new String[5];
+ final String[] commande = new String[5];
commande[0] = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java";
commande[1] = "-jar";
commande[2] = "-Xmx" + memoire + "m";
commande[3] = "-Djava.library.path=" + javaLibraryPath;
commande[4] = Library.TMP_XLOGO.getFile(tmpFolder).getAbsolutePath();
-
+
System.out.println("<----- Starting XLogo ---->");
String cmd = "";
for (int i = 0; i < commande.length; i++) {
@@ -113,26 +113,26 @@ public class Lanceur {
startStreamForward(p.getErrorStream());
p.waitFor();
}
- catch (Exception e) {
+ catch (final Exception e) {
System.out.println(e);
}
}
-
+
private void restorePath() {
- String pathToFolder = tmpFolder.getAbsolutePath();
- String path = System.getProperty("java.library.path");
- StringTokenizer st = new StringTokenizer(path, File.pathSeparator);
+ final String pathToFolder = tmpFolder.getAbsolutePath();
+ final String path = System.getProperty("java.library.path");
+ final StringTokenizer st = new StringTokenizer(path, File.pathSeparator);
String newPath = "";
while (st.hasMoreTokens()) {
if (!newPath.equals(""))
newPath += File.pathSeparator;
- String element = st.nextToken();
+ final String element = st.nextToken();
if (!element.equals(pathToFolder))
newPath += element;
}
System.setProperty("java.library.path", newPath);
}
-
+
/**
* Used to catch application streams and write them to System.out
* @param stream
@@ -147,7 +147,7 @@ public class Lanceur {
while ((line = reader.readLine()) != null)
System.out.println(line);
}
- catch (IOException e) {
+ catch (final IOException e) {
System.out.println(e.toString());
}
finally {
@@ -155,69 +155,69 @@ public class Lanceur {
try {
reader.close();
}
- catch (IOException e) {}
+ catch (final IOException e) {}
}
}
}.start();
}
-
+
/**
* This method checks for unused old XLogo files in temporary directory<br>
* If it found files older than 24 hours with the prefix tmp_xlogo, these
* files are deleted.
*/
private void cleanTmp() {
- String path = System.getProperty("java.io.tmpdir");
- File f = new File(path);
- File[] files = f.listFiles();
+ final String path = System.getProperty("java.io.tmpdir");
+ final File f = new File(path);
+ final File[] files = f.listFiles();
if (null != files) {
for (int i = 0; i < files.length; i++) {
try {
if (files[i].getName().startsWith("tmp_xlogo")) {
- long fileTime = files[i].lastModified();
- long time = Calendar.getInstance().getTimeInMillis();
+ final long fileTime = files[i].lastModified();
+ final long time = Calendar.getInstance().getTimeInMillis();
// Delete file if it's more than 24 hours old
if (time - fileTime > 24 * 3600 * 1000) {
if (files[i].isDirectory())
deleteDirectory(files[i]);
files[i].delete();
-
+
}
}
}
- catch (Exception e) {
+ catch (final Exception e) {
e.printStackTrace();
}
}
}
}
-
+
/**
* This method extracts the file tmp_xlogo.jar from the archive and copy it
* into the temporary directory.
*/
private void extractApplication() {
initTmpFolder();
-
- for (Library lib : Library.values()) {
+
+ for (final Library lib : Library.values()) {
if (lib.getPath() == null){
copy2Tmp(lib);
}
}
// extract the native driver for java 3d in this folder
- String osName = System.getProperty("os.name").toLowerCase();
- String arch = System.getProperty("os.arch");
+ final String osName = System.getProperty("os.name").toLowerCase();
+ final String arch = System.getProperty("os.arch");
System.out.println("Operating system: " + osName);
System.out.println("Architecture: " + arch);
-
+
// Linux
//InputStream lib;
}
-
+
private void initTmpFolder() {
// Create in the "java.io.tmpdir" a directory called tmp_xlogo
int i = 0;
- String tmpPath = System.getProperty("java.io.tmpdir") + File.separator + "tmp_xlogo";
+ final String tmpPath = System.getProperty("java.io.tmpdir") + File.separator + "tmp_xlogo";
while (true) {
tmpFolder = new File(tmpPath + i);
if (!tmpFolder.exists())
@@ -225,38 +225,38 @@ public class Lanceur {
else
i++;
}
-
+
System.out.println("Creating tmp_xlogo directory - success: " + tmpFolder.mkdir());
}
-
- private void copy2Tmp(Library lib) {
+
+ private void copy2Tmp(final Library lib) {
// extract the jar file in this folder
- InputStream src = Lanceur.class.getResourceAsStream(lib.getResourcePath());
- File file = lib.getFile(tmpFolder);
+ final InputStream src = Lanceur.class.getResourceAsStream(lib.getResourcePath());
+ final File file = lib.getFile(tmpFolder);
System.out.println("Get library " + lib.getResourcePath());
System.out.println("Copying " + lib.getLibraryName() + " - success: " + copy(src, file));
}
-
+
private void deleteTmpFiles() {
System.out.println("Closing XLogo. Cleaning tmp file");
- for (Library lib : Library.values()) {
- File file = lib.getFile(tmpFolder);
+ for (final Library lib : Library.values()) {
+ final File file = lib.getFile(tmpFolder);
if (file.exists()) {
file.delete();
}
}
tmpFolder.delete();
}
-
+
/**
* This method copy the file tmp_xlogo.jar from the archive to the file
* Destination.
- *
+ *
* @param destination
* The output file
* @return true if success, false otherwise
*/
- private boolean copy(InputStream src, File destination) {
+ private boolean copy(final InputStream src, final File destination) {
boolean resultat = false;
// Declaration des flux
java.io.FileOutputStream destinationFile = null;
@@ -264,10 +264,10 @@ public class Lanceur {
// Création du fichier :
destination.createNewFile();
// Ouverture des flux
-
+
destinationFile = new java.io.FileOutputStream(destination);
// Lecture par segment de 0.5Mo
- byte buffer[] = new byte[512 * 1024];
+ final byte buffer[] = new byte[512 * 1024];
int nbLecture;
while ((nbLecture = src.read(buffer)) != -1) {
destinationFile.write(buffer, 0, nbLecture);
@@ -275,33 +275,33 @@ public class Lanceur {
// Copie réussie
resultat = true;
}
- catch (java.io.FileNotFoundException f) {}
- catch (java.io.IOException e) {}
+ catch (final java.io.FileNotFoundException f) {}
+ catch (final java.io.IOException e) {}
finally {
// Quoi qu'il arrive, on ferme les flux
try {
src.close();
}
- catch (Exception e) {}
+ catch (final Exception e) {}
try {
destinationFile.close();
}
- catch (Exception e) {}
+ catch (final Exception e) {}
}
return (resultat);
}
-
+
/**
* Delete a the directory created by Logo in /tmp
- *
+ *
* @param path
* The Directory path
* @return true if success
*/
- private boolean deleteDirectory(File path) {
+ private boolean deleteDirectory(final File path) {
boolean resultat = true;
if (path.exists()) {
- File[] files = path.listFiles();
+ final File[] files = path.listFiles();
if (null != files) {
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
@@ -316,7 +316,7 @@ public class Lanceur {
resultat &= path.delete();
return (resultat);
}
-
+
/**
* These represent libraries that should be packed into the new temporary jar.
* @author Marko
@@ -337,34 +337,34 @@ public class Lanceur {
private String path;
private String libName;
-
- Library(String jarName) {
+
+ Library(final String jarName) {
this.libName = jarName;
}
-
- Library(String path, String libName) {
+
+ Library(final String path, final String libName) {
this.path = path;
this.libName = libName;
}
-
+
public String getPath() {
return path;
}
-
+
public String getLibraryName() {
return libName;
}
-
+
public String getResourcePath() {
if (path != null){
return path + libName;
} else {
return libName;
}
-
+
}
-
- public File getFile(File location) {
+
+ public File getFile(final File location) {
return new File(location.getAbsolutePath() + File.separator + libName);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 11:23:32 +0000