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package com.juick.command;
import com.juick.User;
import com.juick.server.protocol.ProtocolListener;
import lombok.Getter;
import lombok.Setter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.util.Set;
import java.util.regex.Pattern;
/**
* @author ma1uta
*/
@Component
@Getter
public class Processor {
private static final Logger LOGGER = LoggerFactory.getLogger(Processor.class);
private final Set<Command> commands;
@Setter
private ProtocolListener protocolListener;
@Autowired
public Processor(Set<Command> commands) {
this.commands = commands;
}
public String execute(User sender, String command) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Execute command: {}", command);
}
command = command != null ? command.trim() : "";
Command defaultCommand = null;
Command helpCommand = null;
for (Command commandItem : getCommands()) {
if (commandItem instanceof ShowHelp) {
helpCommand = commandItem;
}
Pattern pattern = commandItem.pattern();
if (pattern != null && pattern.matcher(command).matches()) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Found command processor: {}", commandItem.getClass().getName());
}
return commandItem.execute(sender, getProtocolListener(), command);
} else {
defaultCommand = commandItem;
}
}
if (defaultCommand != null) {
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("Found default command processor: {}", defaultCommand.getClass().getName());
}
return defaultCommand.execute(sender, getProtocolListener(), command);
}
LOGGER.debug("Command processor not found, return help");
return helpCommand != null ? helpCommand.execute(sender, getProtocolListener(), command) : "Help not found";
}
}
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