JQPlotMapDataProvider.java

package fr.openwide.core.wicket.more.jqplot.data.provider;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import org.apache.wicket.model.IModel;

import com.google.common.base.Objects;
import com.google.common.collect.Sets;

public class JQPlotMapDataProvider<S, K, V> extends AbstractJQPlotDataProvider<S, K, V> {
	
	private static final long serialVersionUID = 7354794798034484146L;
	
	private static final Object SERIES = null;
	
	private static final Collection<Object> SERIES_COLLECTION = Collections.unmodifiableSet(Sets.newHashSet(SERIES));
	
	private final IModel<Map<K, V>> mapModel;

	public JQPlotMapDataProvider(IModel<Map<K, V>> rawDataModel) {
		super();
		this.mapModel = rawDataModel;
	}
	
	private Map<K, V> getMap() {
		return mapModel.getObject();
	}
	
	@Override
	public V getValue(S serie, K key) {
		return Objects.equal(serie, SERIES) ? getMap().get(key) : null;
	}
	
	@Override
	@SuppressWarnings("unchecked")
	public Collection<S> getSeries() {
		return (Collection<S>)SERIES_COLLECTION;
	}
	
	@Override
	public Collection<K> getKeys() {
		return getMap().keySet();
	}

	@Override
	public void detach() {
		mapModel.detach();
	}

}