com.bigdata.rdf.internal.InlineFixedWidthIntegerURIHandler Maven / Gradle / Ivy

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/**

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package com.bigdata.rdf.internal;

import com.bigdata.rdf.internal.impl.literal.AbstractLiteralIV;
import com.bigdata.rdf.model.BigdataLiteral;

/**
 * 
 * Utility IV to generate IVs for URIs in the form of http://example.org/value/0000513
 * where the localName is in integer printed with fixed width padding.
 * 
 * You should extend this class with implementation for specific instances of URIs that follow
 * this form such as:  http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID_000234 would be
 * created as:
 * 
 * InlineFixedWidthIntegerURIHandler handler = new InlineFixedWidthIntegerURIHandler("http://rdf.ncbi.nlm.nih.gov/pubchem/compound/",6);
 *  
 * 
 * @author beebs
 */


public class InlineFixedWidthIntegerURIHandler extends
		InlineSignedIntegerURIHandler {

	private int fixedWidth = 0;

	public InlineFixedWidthIntegerURIHandler(final String namespace, final int fixedWidth) {
		super(namespace);
		this.fixedWidth = fixedWidth;
	}

	@Override
	@SuppressWarnings("rawtypes")
	protected AbstractLiteralIV createInlineIV(String localName) {
		if (localName == null) {
			return null;
		}
	
		final String intValue = localName;
				
		return super.createInlineIV(intValue);
	}

	@Override
	public String getLocalNameFromDelegate(
			AbstractLiteralIV delegate) {

		final String intStr = super.getLocalNameFromDelegate(delegate);

		final int intVal = Integer.parseInt(intStr);

		final String localName = String.format("%0" + fixedWidth + "d", intVal);
		
		return localName;
		
	}
}