/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.boot.model.source.spi;

import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import org.hibernate.mapping.MetaAttribute;

Represents a collection of "tooling hints" (<meta/> mapping info) keyed by a name. 

NOTE : historically these were called "meta attributes", but as these are values used solely
by external tooling it was decided to begin calling them tooling hints.  For temporary
backwards compatibility (temporary until we move away from o.h.mapping model) you will
see mixed usage.
Author:
Steve Ebersole/**
 * Represents a collection of "tooling hints" ({@code <meta/>} mapping info) keyed by a name.
 * <p/>
 * NOTE : historically these were called "meta attributes", but as these are values used solely
 * by external tooling it was decided to begin calling them tooling hints.  For temporary
 * backwards compatibility (temporary until we move away from o.h.mapping model) you will
 * see mixed usage.
 *
 * @author Steve Ebersole
 */
public class ToolingHintContext {
	private final ConcurrentMap<String, ToolingHint> toolingHintMap = new ConcurrentHashMap<String, ToolingHint>();

	public ToolingHintContext(ToolingHintContext baseline) {
		if ( baseline == null ) {
			return;
		}

		for ( ToolingHint toolingHint : baseline.toolingHintMap.values() ) {
			if ( toolingHint.isInheritable() ) {
				toolingHintMap.put( toolingHint.getName(), toolingHint );
			}
		}
	}

	public Collection<ToolingHint> getToolingHints() {
		return toolingHintMap.values();
	}

	public Iterable<String> getKeys() {
		return toolingHintMap.keySet();
	}

	public ToolingHint getToolingHint(String key) {
		return toolingHintMap.get( key );
	}

	public void add(ToolingHint toolingHint) {
		toolingHintMap.put( toolingHint.getName(), toolingHint );
	}

	
The mapping package accepts these as a Map, so for now expose the underlying Map. But we unfortunately need to collect a Map... 
Returns:
The underlying Map/**
	 * The {@link org.hibernate.mapping} package accepts these as a Map, so for now
	 * expose the underlying Map.  But we unfortunately need to collect a Map...
	 *
	 * @return The underlying Map
	 */
	public Map<String,MetaAttribute> getMetaAttributeMap() {
		final Map<String,MetaAttribute> collectedAttributeMap = new ConcurrentHashMap<String, MetaAttribute>();
		for ( ToolingHint toolingHint : toolingHintMap.values() ) {
			collectedAttributeMap.put( toolingHint.getName(), toolingHint.asMetaAttribute() );
		}
		return collectedAttributeMap;
	}
}