SimpleFeaturePrimaryIndexConfiguration.java

package mil.nga.giat.geowave.adapter.vector.index;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import mil.nga.giat.geowave.adapter.vector.utils.SimpleFeatureUserDataConfiguration;

import org.opengis.feature.simple.SimpleFeatureType;

public class SimpleFeaturePrimaryIndexConfiguration implements
		SimpleFeatureUserDataConfiguration,
		java.io.Serializable
{
	private static final long serialVersionUID = -7425830022998223202L;
	public static final String INDEX_NAME = "PrimaryIndexName";
	private List<String> indexNames = null;

	public SimpleFeaturePrimaryIndexConfiguration() {
		super();
	}

	public SimpleFeaturePrimaryIndexConfiguration(
			final SimpleFeatureType type ) {
		super();
		this.configureFromType(type);
	}

	/**
	 * Get all the index names associated with the SimpleFeatureType referenced.
	 * 
	 * @param type
	 *            - SFT object which contains Index Names
	 * @return List of index names
	 */
	public static final List<String> getIndexNames(
			final SimpleFeatureType type ) {
		Object obj = type.getUserData().get(
				INDEX_NAME);
		if (obj != null) {
			return Arrays.asList(obj.toString().split(
					","));
		}
		return Collections.emptyList();
	}

	/**
	 * {@inheritDoc} This method updates the passed in type by adding a CSV
	 * string of all the index names for this Simple Feature Primary Index
	 * Configuration. It is stored in user data as '{@value #INDEX_NAME}'
	 * 
	 * @param SFT
	 *            to be updated.
	 */
	@Override
	public void updateType(
			final SimpleFeatureType type ) {
		final StringBuffer names = new StringBuffer();
		if (indexNames == null) {
			return;
		}
		for (String name : indexNames) {
			if (names.length() > 0) {
				names.append(",");
			}
			names.append(name);

		}
		type.getUserData().put(
				INDEX_NAME,
				names.toString());
	}

	@Override
	public void configureFromType(
			final SimpleFeatureType type ) {
		this.indexNames = getIndexNames(type);
	}

	public List<String> getIndexNames() {
		return indexNames;
	}

	public void setIndexNames(
			List<String> indexNames ) {
		this.indexNames = indexNames;
	}

}