package com.atlassian.sal.core.message;
   
   import com.atlassian.sal.api.message.Message;
   import com.atlassian.sal.api.message.MessageCollection;
   
   import java.io.Serializable;
   import java.util.ArrayList;
   import java.util.List;
   
  public class DefaultMessageCollection implements MessageCollection
  {
  	private final List<Message> messages = new ArrayList<Message>(); 
  
  	public void addMessage(String key, Serializable... arguments)
  	{
  		addMessage(new DefaultMessage(key, arguments));
  	}
  
  	public void addMessage(Message message)
  	{
  		messages.add(message);
  	}
  
  	public boolean isEmpty()
  	{
  		return messages.isEmpty();
  	}
  
  	public List<Message> getMessages()
  	{
  //		return Collections.unmodifiableList(messages); // issues with xstream
  		return messages;
  	}
  
  	public void addAll(List<Message> remoteMessages)
  	{
  		messages.addAll(remoteMessages);
  	}
  	@Override
  	public String toString()
  	{
  		StringBuilder builder = new StringBuilder();
  		for (Message message : messages)
  		{
  			builder.append(message);
  			builder.append("\n");
  		}
  		return builder.toString();
  	}
  }