
org.jruby.util.JarFileResource Maven / Gradle / Ivy
package org.jruby.util;
import org.jruby.RubyFile;
import org.jruby.Ruby;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.jar.JarFile;
import java.util.jar.JarEntry;
/**
* Represents a file in a jar.
*
*
* Note: while directories can be contained within a jar, they're still represented by
* JarDirectoryResource, since Ruby expects a directory to exist as long as any files in that
* directory do, or Dir.glob would break.
*
*/
class JarFileResource extends JarResource {
public static JarFileResource create(JarFile jar, String path) {
JarEntry entry = jar.getJarEntry(path);
return ((entry != null) && !entry.isDirectory()) ? new JarFileResource(jar, entry) : null;
}
private final ZipEntry entry;
private JarFileResource(JarFile jar, ZipEntry entry) {
super(jar);
this.entry = entry;
}
@Override
public String entryName() {
return entry.getName();
}
@Override
public boolean isDirectory() {
return false;
}
@Override
public boolean isFile() {
return true;
}
@Override
public long length() {
return entry.getSize();
}
@Override
public long lastModified() {
return entry.getTime();
}
@Override
public String[] list() {
// Files cannot be listed
return null;
}
}
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