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// library inclusions
import waba.io.*;
import java.lang.*;
import waba.sys.*;
import waba.sys.VmShell;
/*
* Todo: Test createDir, delete, exists, rename, seek
*/
class FileTest
{
public static void main (String[] args) {
VmShell.println("FileTest" + " "+args.length);
FileTest f = new FileTest();
if(args.length<1 || args[0]==null)
usage();
else {
if(args[0].equals("a"))
testLD();
else if(args[0].equals("b"))
testFRd();
else if(args[0].equals("c"))
testFCr();
else
usage();
}
} // method main
private static void usage()
{
VmShell.println("usage: FileTest a|b|c|d\n");
}
private static void testLD()
{
File file;
VmShell.println("ListDir:");
file = new File(".", File.READ_ONLY);
if(!file.isOpen()) {
VmShell.println("*** could not open dir");
}
else {
String list[];
list = file.listDir();
if(list==null) {
VmShell.println("*** could not listdir");
}
else {
int l = list.length;
VmShell.println("Found "+l+" object"+(l>1?"s":""));
for(int i=0; i<l; ++i) {
File f = new File(list[i], File.READ_ONLY);
VmShell.print(f.isDir() ? "d ":"f ");
VmShell.print("[");
VmShell.print(Convert.toString(i));
VmShell.print("] = ");
VmShell.print(list[i]);
VmShell.print("\r\t\t\t\t");
VmShell.print(Convert.toString(f.getLength()));
VmShell.print("\t[");
VmShell.print(f.getPath());
VmShell.print("]");
VmShell.println("");
f.close();
}
}
}
} // method
static final String fname = "test.txt";
private static void testFRd()
{
VmShell.println("Read file:");
File file = new File(fname, File.READ_ONLY);
if (!file.isOpen()) {
VmShell.println("*** could not open file "+'"'+fname+'"'+" for reading");
return;
}
byte b[] = new byte[25];
int nr = file.readBytes(b, 0, b.length);
VmShell.println("read "+nr+" byte"+(nr>1?"s":"")+":");
VmShell.print("<");
for(int i=0; i<nr; ++i)
VmShell.print(""+(char)b[i]);
VmShell.println(">");
file.close();
} // method
private static void testFCr()
{
VmShell.println("Create file:");
File file = new File(fname, File.CREATE);
if (!file.isOpen()) {
VmShell.println("*** could not open file "+'"'+fname+'"'+" for create");
return;
}
byte b[] = new byte[25];
for(int i=0; i<b.length; ++i) b[i]=(byte)(255-i);
int nr = file.writeBytes(b, 0, b.length);
VmShell.println("wrote "+nr+" byte"+(nr>1?"s":"")+":");
file.close();
} // method
} // class HelloWorld
/*
* File is a file or directory.
* <p>
* The File class will not work under the PalmPilot since it does not
* contain a filesystem.
* <p>
* Here is an example showing data being read from a file:
*
* <pre>
* File file = new File("/temp/tempfile", File.READ_ONLY);
* if (!file.isOpen())
* return;
* byte b[] = new byte[10];
* file.readBytes(b, 0, 10);
* file.close();
* file = new File("/temp/tempfile", File.DONT_OPEN);
* file.delete();
* </pre>
*/
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