Saber-Factions/src/com/massivecraft/factions/commands/FCommandConfig.java

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package com.massivecraft.factions.commands;
import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Set;
import java.util.HashMap;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import com.massivecraft.factions.Conf;
import com.massivecraft.factions.Factions;
import com.massivecraft.factions.SpoutFeatures;
public class FCommandConfig extends FBaseCommand {
private static HashMap<String, String> properFieldNames = new HashMap<String, String>();
public FCommandConfig() {
aliases.add("config");
senderMustBePlayer = false;
requiredParameters.add("setting");
requiredParameters.add("value");
helpDescription = "change a conf.json setting";
}
@Override
public boolean hasPermission(CommandSender sender) {
return Factions.hasPermConfigure(sender);
}
@Override
public void perform() {
if( isLocked() ) {
sendLockMessage();
return;
}
// store a lookup map of lowercase field names paired with proper capitalization field names
// that way, if the person using this command messes up the capitalization, we can fix that
if (properFieldNames.isEmpty()) {
Field[] fields = Conf.class.getDeclaredFields();
for(int i = 0; i < fields.length; i++) {
properFieldNames.put(fields[i].getName().toLowerCase(), fields[i].getName());
}
}
String field = parameters.get(0).toLowerCase();
if (field.startsWith("\"") && field.endsWith("\"")) {
field = field.substring(1, field.length() - 1);
}
String fieldName = properFieldNames.get(field);
if (fieldName == null || fieldName.isEmpty()) {
sendMessage("No configuration setting \""+parameters.get(0)+"\" exists.");
return;
}
String success = "";
String value = parameters.get(1);
for(int i = 2; i < parameters.size(); i++) {
value += ' ' + parameters.get(i);
}
try {
Field target = Conf.class.getField(fieldName);
// boolean
if (target.getType() == boolean.class) {
if (aliasTrue.contains(value.toLowerCase())) {
target.setBoolean(null, true);
success = "\""+fieldName+"\" option set to true (enabled).";
}
else if (aliasFalse.contains(value.toLowerCase())) {
target.setBoolean(null, false);
success = "\""+fieldName+"\" option set to false (disabled).";
}
else {
sendMessage("Cannot set \""+fieldName+"\": boolean value required (true or false).");
return;
}
}
// int
else if (target.getType() == int.class) {
try {
int intVal = Integer.parseInt(value);
target.setInt(null, intVal);
success = "\""+fieldName+"\" option set to "+intVal+".";
}
catch(NumberFormatException ex) {
sendMessage("Cannot set \""+fieldName+"\": integer (whole number) value required.");
return;
}
}
// double
else if (target.getType() == double.class) {
try {
double doubleVal = Double.parseDouble(value);
target.setDouble(null, doubleVal);
success = "\""+fieldName+"\" option set to "+doubleVal+".";
}
catch(NumberFormatException ex) {
sendMessage("Cannot set \""+fieldName+"\": double (numeric) value required.");
return;
}
}
// String
else if (target.getType() == String.class) {
target.set(null, value);
success = "\""+fieldName+"\" option set to \""+value+"\".";
}
// ChatColor
else if (target.getType() == ChatColor.class) {
ChatColor newColor = null;
try {
newColor = ChatColor.valueOf(value.toUpperCase());
}
catch (IllegalArgumentException ex) {
}
if (newColor == null) {
sendMessage("Cannot set \""+fieldName+"\": \""+value.toUpperCase()+"\" is not a valid color.");
return;
}
target.set(null, newColor);
success = "\""+fieldName+"\" color option set to \""+value.toUpperCase()+"\".";
}
// Set<?> or other parameterized collection
else if (target.getGenericType() instanceof ParameterizedType) {
ParameterizedType targSet = (ParameterizedType)target.getGenericType();
Type innerType = targSet.getActualTypeArguments()[0];
// not a Set, somehow, and that should be the only collection we're using in Conf.java
if (targSet.getRawType() != Set.class) {
sendMessage("\""+fieldName+"\" is not a data collection type which can be modified with this command.");
return;
}
// Set<Material>
else if (innerType == Material.class) {
Material newMat = null;
try {
newMat = Material.valueOf(value.toUpperCase());
}
catch (IllegalArgumentException ex) {
}
if (newMat == null) {
sendMessage("Cannot change \""+fieldName+"\" set: \""+value.toUpperCase()+"\" is not a valid material.");
return;
}
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@SuppressWarnings("unchecked")
Set<Material> matSet = (Set<Material>)target.get(null);
// Material already present, so remove it
if (matSet.contains(newMat)) {
matSet.remove(newMat);
target.set(null, matSet);
success = "\""+fieldName+"\" set: Material \""+value.toUpperCase()+"\" removed.";
}
// Material not present yet, add it
else {
matSet.add(newMat);
target.set(null, matSet);
success = "\""+fieldName+"\" set: Material \""+value.toUpperCase()+"\" added.";
}
}
// Set<String>
else if (innerType == String.class) {
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@SuppressWarnings("unchecked")
Set<String> stringSet = (Set<String>)target.get(null);
// String already present, so remove it
if (stringSet.contains(value)) {
stringSet.remove(value);
target.set(null, stringSet);
success = "\""+fieldName+"\" set: \""+value+"\" removed.";
}
// String not present yet, add it
else {
stringSet.add(value);
target.set(null, stringSet);
success = "\""+fieldName+"\" set: \""+value+"\" added.";
}
}
// Set of unknown type
else {
sendMessage("\""+fieldName+"\" is not a data type set which can be modified with this command.");
return;
}
}
// unknown type
else {
sendMessage("\""+fieldName+"\" is not a data type which can be modified with this command.");
return;
}
}
catch (NoSuchFieldException ex) {
sendMessage("Configuration setting \""+fieldName+"\" couldn't be matched, though it should be... please report this error.");
return;
}
catch (IllegalAccessException ex) {
sendMessage("Error setting configuration setting \""+fieldName+"\" to \""+value+"\".");
return;
}
if (!success.isEmpty()) {
sendMessage(success);
if (sender instanceof Player) {
Factions.log(success + " Command was run by "+player.getName()+".");
}
}
// save change to disk
Conf.save();
// in case some Spout related setting was changed
SpoutFeatures.updateAppearances();
}
}