/*
 * Copyright 2009 Andrew Pietsch 
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you 
 * may not use this file except in compliance with the License. You may 
 * obtain a copy of the License at 
 *      
 *      http://www.apache.org/licenses/LICENSE-2.0 
 *
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
 * implied. See the License for the specific language governing permissions 
 * and limitations under the License. 
 */

package com.dragome.forms.bindings.client.form.validation;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;

import com.dragome.model.interfaces.Severity;
import com.dragome.model.interfaces.ValidationMessage;
import com.dragome.model.interfaces.ValidationResult;
import com.dragome.model.pectin.ValidationResultCollector;

/**
 * 
 */
public class ValidationResultImpl implements ValidationResult, ValidationResultCollector
{
	private ArrayList<ValidationMessage> results= new ArrayList<ValidationMessage>();
	private TreeMap<Severity, List<ValidationMessage>> severityMap= new TreeMap<Severity, List<ValidationMessage>>();

	public ValidationResultImpl()
	{
	}

	public void add(ValidationMessage message)
	{
		results.add(message);
		prepareSeverityList(message.getSeverity()).add(message);
	}

	public void addAll(Collection<ValidationMessage> messages)
	{
		for (ValidationMessage message : messages)
		{
			add(message);
		}
	}

	public boolean isEmpty()
	{
		return results.isEmpty();
	}

	public boolean contains(Severity severity)
	{
		return severityMap.containsKey(severity);
	}

	public List<ValidationMessage> getMessages()
	{
		return Collections.unmodifiableList(results);
	}

	public List<ValidationMessage> getMessages(Severity severity)
	{
		return Collections.unmodifiableList(prepareSeverityList(severity));
	}

	public SortedSet<Severity> getSeverities()
	{
		return new TreeSet<Severity>(severityMap.keySet());
	}

	protected List<ValidationMessage> prepareSeverityList(Severity severity)
	{
		List<ValidationMessage> list= severityMap.get(severity);

		if (list == null)
		{
			list= new ArrayList<ValidationMessage>();
			severityMap.put(severity, list);
		}

		return list;
	}
}