public boolean execute(ScriptEntry scriptEntry) {
Matcher m;
StringBuffer sb;
if (scriptEntry.getCommandName().indexOf('%') != -1) {
m = definition_pattern.matcher(scriptEntry.getCommandName());
sb = new StringBuffer();
while (m.find()) {
String definition = scriptEntry.getResidingQueue().getDefinition(m.group(1));
if (definition == null) definition = "null";
m.appendReplacement(sb, definition);
}
m.appendTail(sb);
scriptEntry.setCommandName(sb.toString());
}
// Get the command instance ready for the execution of the scriptEntry
AbstractCommand command = plugin.getCommandRegistry().get(scriptEntry.getCommandName());
if (command == null) {
dB.echoDebug(
scriptEntry, DebugElement.Header, "Executing command: " + scriptEntry.getCommandName());
dB.echoError(
scriptEntry.getCommandName() + " is an invalid dCommand! Are you sure it loaded?");
dB.echoDebug(scriptEntry, DebugElement.Footer);
return false;
}
// Debugger information
if (scriptEntry.getPlayer() != null)
dB.echoDebug(
scriptEntry,
DebugElement.Header,
"Executing dCommand: "
+ scriptEntry.getCommandName()
+ "/"
+ scriptEntry.getPlayer().getName());
else
dB.echoDebug(
scriptEntry,
DebugElement.Header,
"Executing dCommand: "
+ scriptEntry.getCommandName()
+ (scriptEntry.getNPC() != null ? "/" + scriptEntry.getNPC().getName() : ""));
// Don't execute() if problems arise in parseArgs()
boolean keepGoing = true;
try {
// Throw exception if arguments are required for this command, but not supplied.
if (command.getOptions().REQUIRED_ARGS > scriptEntry.getArguments().size())
throw new InvalidArgumentsException("");
if (scriptEntry.has_tags)
scriptEntry.setArguments(
TagManager.fillArguments(
scriptEntry.getArguments(), scriptEntry, true)); // Replace tags
/* If using NPC:# or PLAYER:Name arguments, these need to be changed out immediately because...
* 1) Denizen/Player flags need the desired NPC/PLAYER before parseArgs's getFilledArguments() so that
* the Player/Denizen flags will read from the correct Object. If using PLAYER or NPCID arguments,
* the desired Objects are obviously not the same objects that were sent with the ScriptEntry.
* 2) These arguments should be valid for EVERY ScriptCommand, so why not just take care of it
* here, instead of requiring each command to take care of the argument.
*/
List<String> newArgs = new ArrayList<String>();
// Don't fill in tags if there were brackets detected..
// This means we're probably in a nested if.
int nested_depth = 0;
// Watch for IF command to avoid filling player and npc arguments
// prematurely
boolean if_ignore = false;
for (aH.Argument arg : aH.interpret(scriptEntry.getArguments())) {
if (arg.getValue().equals("{")) nested_depth++;
if (arg.getValue().equals("}")) nested_depth--;
// If nested, continue.
if (nested_depth > 0) {
newArgs.add(arg.raw_value);
continue;
}
if (arg.raw_value.indexOf('%') != -1) {
m = definition_pattern.matcher(arg.raw_value);
sb = new StringBuffer();
while (m.find()) {
String definition = scriptEntry.getResidingQueue().getDefinition(m.group(1));
if (definition == null) definition = "null";
m.appendReplacement(sb, definition);
}
m.appendTail(sb);
arg = aH.Argument.valueOf(sb.toString());
}
// If using IF, check if we've reached the command + args
// so that we don't fill player: or npc: prematurely
if (command.getName().equalsIgnoreCase("if")
&& DenizenAPI.getCurrentInstance().getCommandRegistry().get(arg.getValue()) != null)
if_ignore = true;
// Fill player/off-line player
if (arg.matchesPrefix("player") && !if_ignore) {
dB.echoDebug(scriptEntry, "...replacing the linked player with " + arg.getValue());
String value =
TagManager.tag(
scriptEntry.getPlayer(),
scriptEntry.getNPC(),
arg.getValue(),
false,
scriptEntry);
dPlayer player = dPlayer.valueOf(value);
if (player == null || !player.isValid()) {
dB.echoError(value + " is an invalid player!");
return false;
}
scriptEntry.setPlayer(player);
}
// Fill NPCID/NPC argument
else if (arg.matchesPrefix("npc, npcid") && !if_ignore) {
dB.echoDebug(scriptEntry, "...replacing the linked NPC with " + arg.getValue());
String value =
TagManager.tag(
scriptEntry.getPlayer(),
scriptEntry.getNPC(),
arg.getValue(),
false,
scriptEntry);
dNPC npc = dNPC.valueOf(value);
if (npc == null || !npc.isValid()) {
dB.echoError(value + " is an invalid NPC!");
return false;
}
scriptEntry.setNPC(npc);
}
// Save the scriptentry if needed later for fetching scriptentry context
else if (arg.matchesPrefix("save") && !if_ignore) {
dB.echoDebug(scriptEntry, "...remembering this script entry!");
scriptEntry.getResidingQueue().holdScriptEntry(arg.getValue(), scriptEntry);
} else newArgs.add(arg.raw_value);
}
// Add the arguments back to the scriptEntry.
scriptEntry.setArguments(newArgs);
// Now process non-instant tags.
if (scriptEntry.has_tags)
scriptEntry.setArguments(
TagManager.fillArguments(scriptEntry.getArguments(), scriptEntry, false));
// Parse the rest of the arguments for execution.
command.parseArgs(scriptEntry);
} catch (InvalidArgumentsException e) {
keepGoing = false;
// Give usage hint if InvalidArgumentsException was called.
dB.echoError("Woah! Invalid arguments were specified!");
if (e.getMessage() != null && e.getMessage().length() > 0)
dB.log(
ChatColor.YELLOW
+ "+> MESSAGE follows: "
+ ChatColor.WHITE
+ "'"
+ e.getMessage()
+ "'");
dB.log("Usage: " + command.getUsageHint());
dB.echoDebug(scriptEntry, DebugElement.Footer);
scriptEntry.setFinished(true);
} catch (Exception e) {
keepGoing = false;
dB.echoError("Woah! An exception has been called with this command!");
dB.echoError(e);
dB.echoDebug(scriptEntry, DebugElement.Footer);
scriptEntry.setFinished(true);
} finally {
if (keepGoing)
try {
// Run the execute method in the command
command.execute(scriptEntry);
} catch (Exception e) {
dB.echoError("Woah!! An exception has been called with this command!");
dB.echoError(e);
scriptEntry.setFinished(true);
}
}
return true;
}
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
// Comparables check the logic
List<Comparable> comparables = new ArrayList<Comparable>();
// Insert new comparable into the list
comparables.add(new Comparable());
// Indicate that comparables are building
boolean buildingComparables = true;
// What to do depending on the logic of the comparables
// is stored in two tree maps
TreeMap<Integer, ArrayList<String>> thenOutcome = new TreeMap<Integer, ArrayList<String>>();
TreeMap<Integer, ArrayList<String>> elseOutcome = new TreeMap<Integer, ArrayList<String>>();
// Keep tracking of whether we're inside the Else part of the statement or not
boolean insideElse = false;
// Keep track of this to avoid Denizen overlooking comparedTo when an operator is used
// with a value that matches the name of a command. (Good find dimensionZ!)
boolean usedOperator = false;
// Track whether we are adding a new command or not
boolean newCommand = false;
// Track whether we are inside nested brackets whose contents
// should be added as arguments to our current If, not as commands
int bracketsEntered = 0;
for (aH.Argument arg : aH.interpret(scriptEntry.getArguments())) {
if (buildingComparables) {
// Set logic to NEGATIVE
if (arg.startsWith("!")) {
comparables.get(comparables.size() - 1).setNegativeLogic();
if (arg.getValue().length() == 1) continue;
if (arg.startsWith("!=")) arg.replaceValue("==");
else arg.replaceValue(arg.getValue().substring(1));
}
// Replace symbol-operators/bridges with ENUM value for matching
if (arg.getValue().equals("==")) arg.replaceValue("EQUALS");
else if (arg.getValue().equals(">=")) arg.replaceValue("OR_MORE");
else if (arg.getValue().equals("<=")) arg.replaceValue("OR_LESS");
else if (arg.getValue().equals("<")) arg.replaceValue("LESS");
else if (arg.getValue().equals(">")) arg.replaceValue("MORE");
else if (arg.getValue().equals("||")) arg.replaceValue("OR");
else if (arg.getValue().equals("&&")) arg.replaceValue("AND");
// Set bridge
if (arg.matchesEnum(Comparable.Bridge.values())) {
// new Comparable to add to the list
comparables.add(new Comparable());
comparables.get(comparables.size() - 1).bridge =
Comparable.Bridge.valueOf(arg.getValue().toUpperCase());
}
// Set operator (Optional, default is EQUALS)
else if (arg.matchesEnum(Comparable.Operator.values())) {
comparables.get(comparables.size() - 1).operator =
Comparable.Operator.valueOf(arg.getValue().toUpperCase());
usedOperator = true;
}
// Set comparable
else if (comparables.get(comparables.size() - 1).comparable == null) {
// If using MATCHES operator, keep as string.
comparables.get(comparables.size() - 1).setComparable(arg.getValue());
} else if (!usedOperator && arg.matches("{")) {
buildingComparables = false;
}
// Check if filling comparables are done by checking the command registry for valid
// commands.
// If using an operator though, skip on to compared-to!
else if (!usedOperator
&& denizen.getCommandRegistry().get(arg.getValue().replace("^", "")) != null) {
buildingComparables = false;
}
// Set compared-to
else {
comparables.get(comparables.size() - 1).setComparedto(arg.getValue());
usedOperator = false;
}
}
if (!buildingComparables) {
// Read "-" as meaning we are moving to a new command, unless we
// are inside nested brackets (i.e. bracketsEntered of at least 2)
// in which case we just treat what follows as arguments
if (arg.matches("-") && bracketsEntered < 2) {
newCommand = true;
} else if (!insideElse) {
// Move to else commands if we read an "else" and we're not
// currently going through nested arguments
if (arg.matches("else") && bracketsEntered == 0) {
insideElse = true;
}
// If we find a bracket, and we're already inside
// nested brackets, add the bracket to the current
// command's arguments
else if (arg.matches("{")) {
bracketsEntered++;
if (bracketsEntered > 1) {
thenOutcome.get(thenOutcome.lastKey()).add(arg.raw_value);
}
} else if (arg.matches("}")) {
bracketsEntered--;
if (bracketsEntered > 0) {
thenOutcome.get(thenOutcome.lastKey()).add(arg.raw_value);
}
}
// Add new outcome command if the last argument was a non-nested "-"
// or if there are no outcome commands yet
else if (newCommand || thenOutcome.size() == 0) {
thenOutcome.put(thenOutcome.size(), new ArrayList<String>());
thenOutcome.get(thenOutcome.lastKey()).add(arg.raw_value);
newCommand = false;
}
// Add new outcome argument
else {
thenOutcome.get(thenOutcome.lastKey()).add(arg.raw_value);
}
} else if (insideElse) {
// If we find a bracket, and we're already inside
// nested brackets, add the bracket to the current
// command's arguments
if (arg.matches("{")) {
bracketsEntered++;
if (bracketsEntered > 1) {
elseOutcome.get(elseOutcome.lastKey()).add(arg.raw_value);
}
} else if (arg.matches("}")) {
bracketsEntered--;
if (bracketsEntered > 0) {
elseOutcome.get(elseOutcome.lastKey()).add(arg.raw_value);
}
}
// Add new else command if the last argument was a non-nested "-"
// or if it was "else" and we have no else commands yet
else if (newCommand || elseOutcome.size() == 0) {
newCommand = false;
// Important!
//
// If we find an "else if", act like we entered a set of
// brackets, so we treat the if's commands as arguments
// and don't add them to our current else commands
if (arg.matches("if") && elseOutcome.size() == 0) {
bracketsEntered++;
}
// Add the new else command
elseOutcome.put(elseOutcome.size(), new ArrayList<String>());
elseOutcome.get(elseOutcome.lastKey()).add(arg.raw_value);
}
// Add new else argument
else {
elseOutcome.get(elseOutcome.lastKey()).add(arg.raw_value);
}
}
}
}
// Stash objects required to execute() into the ScriptEntry
scriptEntry
.addObject("comparables", comparables)
.addObject("then-outcome", thenOutcome)
.addObject("else-outcome", elseOutcome);
}