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Main.java
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/*
* Copyright (c) 2010 SimpleServer authors (see CONTRIBUTORS)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package simpleserver.nbt;
import java.io.FileNotFoundException;
import java.io.IOException;
public class Main {
public static void main(String[] args) {
if (args.length == 0) {
System.out.println("Usage: java -jar NBT.jar file [command] [arguments]");
System.out.println("\nCommands:");
System.out.println("\tread [key]");
System.out.println("\tset key value");
System.out.println("\tremove key");
System.out.println("\tadd key [name type] [value]");
return;
}
NBTFile file = null;
try {
try {
file = new GZipNBTFile(args[0]);
} catch (IOException g) {
file = new NBTFile(args[0]);
}
} catch (FileNotFoundException e) {
System.out.println("Error: No such file or dictionary");
} catch (Exception e) {
System.out.println("Error: " + e + " (" + e.getMessage() + ")");
}
if (file == null) {
return;
}
if (args.length <= 1) {
System.out.println(file);
return;
}
String command = args[1].toLowerCase();
if (command.equals("read")) {
read(args, file);
} else if (command.equals("set")) {
set(args, file);
} else if (command.equals("remove")) {
remove(args, file);
} else if (command.equals("add")) {
add(args, file);
}
}
private static void read(String[] args, NBTFile file) {
NBTag tag = file.root();
if (args.length >= 3) {
tag = tryGetTag(args[2], tag);
}
if (tag != null) {
System.out.println(tag);
}
}
private static void set(String[] args, NBTFile file) {
if (args.length >= 4) {
NBTag tag = tryGetTag(args[2], file.root());
if (tag == null) {
return;
}
String value = args[3];
try {
tag.set(value);
} catch (NumberFormatException e) {
System.out.println("Error: Wrong format (" + e.getMessage() + ")");
return;
}
trySave(file, args[0]);
} else {
System.out.println("Error: Wrong number of arguments");
}
}
@SuppressWarnings("unchecked")
private static void remove(String[] args, NBTFile file) {
if (args.length >= 3) {
String path = args[2];
int split = Math.max(path.lastIndexOf('.'), path.lastIndexOf('/'));
NBTag tag = tryGetTag(path.substring(0, split), file.root());
if (tag == null) {
return;
}
String name = path.substring(split + 1);
switch (tag.type()) {
case COMPOUND:
if (((NBTCompound) tag).containsKey(name)) {
((NBTCompound) tag).remove(name);
} else {
System.out.println(new NoSuchKeyException(path));
}
break;
case LIST:
int index;
try {
index = Integer.valueOf(name);
} catch (NumberFormatException e) {
System.out.println(new NoSuchKeyException(path));
return;
}
if (((NBTList<NBTag>) tag).size() > index) {
((NBTList<NBTag>) tag).remove(((NBTList<NBTag>) tag).get(index));
} else {
System.out.println(new NoSuchKeyException(path));
}
break;
default:
System.out.println(new NoContainerException(tag));
return;
}
trySave(file, args[0]);
} else {
System.out.println("Error: Wrong number of arguments");
}
}
@SuppressWarnings("unchecked")
private static void add(String[] args, NBTFile file) {
NBTag newTag = null;
if (args.length >= 3) {
NBTag tag = tryGetTag(args[2], file.root());
if (tag == null) {
return;
}
int index = 3;
if (tag.type() == NBT.COMPOUND) {
if (args.length >= 5) {
String typeString = args[4].toLowerCase();
if (typeString.equals("list")) {
System.out.println("Error: Use list.<type> for list tags (e.g. list.string)");
return;
} else if (typeString.startsWith("list.")) {
NBT type = NBT.get(args[4].substring(5));
if (type == null || type == NBT.END || type == NBT.LIST) {
System.out.println("Error: Unknown type");
return;
}
newTag = new NBTList<NBTag>(type);
} else {
NBT type = NBT.get(args[4]);
if (type == null || type == NBT.END) {
System.out.println("Error: Unknown type");
return;
}
try {
newTag = type.getInstance();
} catch (Exception e) {
System.out.println("Error: " + e.getClass().getSimpleName() + " (" + e.getMessage() + ")");
return;
}
}
newTag.rename(args[3]);
((NBTCompound) tag).put(newTag);
index = 5;
} else {
System.out.println("Error: Wrong number of arguments");
}
} else if (tag.type() == NBT.LIST) {
NBTList<NBTag> list = (NBTList<NBTag>) tag;
try {
newTag = list.listType().getInstance();
} catch (Exception e) {
System.out.println("Error: " + e.getClass().getSimpleName() + " (" + e.getMessage() + ")");
return;
}
list.add(newTag);
} else {
System.out.println("Error: Can't add tags to " + tag.getClass().getSimpleName());
return;
}
if (args.length > index) {
String value = args[index];
try {
newTag.set(value);
} catch (NumberFormatException e) {
System.out.println("Error: Wrong format (" + e.getMessage() + ")");
return;
}
}
trySave(file, args[0]);
} else {
System.out.println("Error: Wrong number of arguments");
}
}
private static void trySave(NBTFile file, String filename) {
try {
file.save(filename);
} catch (IOException e) {
System.out.println("Error: File couldn't be saved (" + e.getMessage() + ")");
}
}
private static NBTag tryGetTag(String path, NBTag root) {
try {
return getTag(path, root);
} catch (NoSuchKeyException e) {
System.out.println("Error: " + e.getMessage());
return null;
} catch (NoContainerException e) {
System.out.println("Error: " + e.getMessage());
return null;
}
}
@SuppressWarnings("unchecked")
public static NBTag getTag(String path, NBTag root) throws NoSuchKeyException, NoContainerException {
String[] keys = path.split("/|\\.");
NBTag current = root;
for (String name : keys) {
switch (current.type()) {
case COMPOUND:
NBTCompound comp = (NBTCompound) current;
if (!comp.containsKey(name)) {
throw new NoSuchKeyException(name);
}
current = comp.get(name);
break;
case LIST:
NBTList<NBTag> list = (NBTList<NBTag>) current;
int key = Integer.valueOf(name);
if (key >= list.size()) {
throw new NoSuchKeyException(Integer.toString(key));
}
current = list.get(key);
break;
default:
throw new NoContainerException(current);
}
}
return current;
}
public static class NoSuchKeyException extends Exception {
private static final long serialVersionUID = 1L;
public String key;
public NoSuchKeyException(String key) {
super("No such key: \"" + key + "\"");
this.key = key;
}
}
public static class NoContainerException extends Exception {
private static final long serialVersionUID = 1L;
public NBTag tag;
public NoContainerException(NBTag tag) {
super("Tag \"" + tag.name + "\" is not a container (" + tag.getClass().getSimpleName() + ")");
this.tag = tag;
}
}
}