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package com.sun.jersey.core.spi.scanning;
import com.sun.jersey.core.util.Closing;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* A scanner that recursively scans directories and jar files.
* Files or jar entries are reported to a {@link ScannerListener}.
*
* @author Paul.Sandoz@Sun.Com
*/
public class FilesScanner implements Scanner {
private final File[] files;
/**
* Scan from a set of files.
*
* @param files an array of files that are either directories or jar files
* ending in the suffix '.jar' or '.zip'. Any other type of file
* is ignored.
*/
public FilesScanner(final File[] files) {
this.files = files;
}
// Scanner
public void scan(final ScannerListener cfl) {
for (final File f : files) {
scan(f, cfl);
}
}
private void scan(final File f, final ScannerListener cfl) {
if (f.isDirectory()) {
scanDir(f, cfl);
} else if (f.getName().endsWith(".jar") || f.getName().endsWith(".zip")) {
try {
JarFileScanner.scan(f, "", cfl);
} catch (IOException ex) {
throw new ScannerException("IO error when scanning jar file " + f, ex);
}
} else {
// TODO log
}
}
private void scanDir(final File root, final ScannerListener cfl) {
for (final File child : root.listFiles()) {
if (child.isDirectory()) {
scanDir(child, cfl);
} else if (child.getName().endsWith(".jar")) {
try {
JarFileScanner.scan(child, "", cfl);
} catch (IOException ex) {
throw new ScannerException("IO error when scanning jar file " + child, ex);
}
} else if (cfl.onAccept(child.getName())) {
try {
new Closing(new BufferedInputStream(new FileInputStream(child))).f(new Closing.Closure() {
public void f(InputStream in) throws IOException {
cfl.onProcess(child.getName(), in);
}
});
} catch (IOException ex) {
throw new ScannerException("IO error when scanning file " + child, ex);
}
}
}
}
}