package jdk.internal.jrtfs;
import java.nio.file.LinkOption;
import java.nio.file.attribute.*;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
final class JrtFileAttributeView implements BasicFileAttributeView {
private static enum AttrID {
size,
creationTime,
lastAccessTime,
lastModifiedTime,
isDirectory,
isRegularFile,
isSymbolicLink,
isOther,
fileKey,
compressedSize,
extension
};
private final JrtPath path;
private final boolean isJrtView;
private final LinkOption[] options;
private JrtFileAttributeView(JrtPath path, boolean isJrtView, LinkOption... options) {
this.path = path;
this.isJrtView = isJrtView;
this.options = options;
}
@SuppressWarnings("unchecked")
static <V extends FileAttributeView> V get(JrtPath path, Class<V> type, LinkOption... options) {
Objects.requireNonNull(type);
if (type == BasicFileAttributeView.class) {
return (V) new JrtFileAttributeView(path, false, options);
}
if (type == JrtFileAttributeView.class) {
return (V) new JrtFileAttributeView(path, true, options);
}
return null;
}
static JrtFileAttributeView get(JrtPath path, String type, LinkOption... options) {
Objects.requireNonNull(type);
if (type.equals("basic")) {
return new JrtFileAttributeView(path, false, options);
}
if (type.equals("jrt")) {
return new JrtFileAttributeView(path, true, options);
}
return null;
}
@Override
public String name() {
return isJrtView ? "jrt" : "basic";
}
@Override
public JrtFileAttributes readAttributes() throws IOException {
return path.getAttributes(options);
}
@Override
public void setTimes(FileTime lastModifiedTime,
FileTime lastAccessTime,
FileTime createTime) throws IOException {
path.setTimes(lastModifiedTime, lastAccessTime, createTime);
}
static void setAttribute(JrtPath path, String attribute, Object value)
throws IOException {
int colonPos = attribute.indexOf(':');
if (colonPos != -1) {
String type = attribute.substring(0, colonPos++);
if (!type.equals("basic") && !type.equals("jrt")) {
throw new UnsupportedOperationException(
"view <" + type + "> is not supported");
}
attribute = attribute.substring(colonPos);
}
try {
AttrID id = AttrID.valueOf(attribute);
if (id == AttrID.lastModifiedTime) {
path.setTimes((FileTime) value, null, null);
} else if (id == AttrID.lastAccessTime) {
path.setTimes(null, (FileTime) value, null);
} else if (id == AttrID.creationTime) {
path.setTimes(null, null, (FileTime) value);
}
return;
} catch (IllegalArgumentException x) {}
throw new UnsupportedOperationException("'" + attribute
+ "' is unknown or read-only attribute");
}
static Map<String, Object> readAttributes(JrtPath path, String attributes,
LinkOption... options)
throws IOException {
int colonPos = attributes.indexOf(':');
boolean isJrtView = false;
if (colonPos != -1) {
String type = attributes.substring(0, colonPos++);
if (!type.equals("basic") && !type.equals("jrt")) {
throw new UnsupportedOperationException("view <" + type +
"> is not supported");
}
isJrtView = true;
attributes = attributes.substring(colonPos);
}
JrtFileAttributes jrtfas = path.getAttributes();
LinkedHashMap<String, Object> map = new LinkedHashMap<>();
if ("*".equals(attributes)) {
for (AttrID id : AttrID.values()) {
map.put(id.name(), attribute(id, jrtfas, isJrtView));
}
} else {
String[] as = attributes.split(",");
for (String a : as) {
map.put(a, attribute(AttrID.valueOf(a), jrtfas, isJrtView));
}
}
return map;
}
static Object attribute(AttrID id, JrtFileAttributes jrtfas, boolean isJrtView) {
switch (id) {
case size:
return jrtfas.size();
case creationTime:
return jrtfas.creationTime();
case lastAccessTime:
return jrtfas.lastAccessTime();
case lastModifiedTime:
return jrtfas.lastModifiedTime();
case isDirectory:
return jrtfas.isDirectory();
case isRegularFile:
return jrtfas.isRegularFile();
case isSymbolicLink:
return jrtfas.isSymbolicLink();
case isOther:
return jrtfas.isOther();
case fileKey:
return jrtfas.fileKey();
case compressedSize:
if (isJrtView) {
return jrtfas.compressedSize();
}
break;
case extension:
if (isJrtView) {
return jrtfas.extension();
}
break;
}
return null;
}
}