/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
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/STRPREFIX1234234513
* where the localName of the URI is a string prefix followed by an integer value with fixed width.
*
* 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_1234234 would be
* created as
*
* <code>
* InlinePrefixedFixedWidthIntegerURIHandler handler = new InlinePrefixedFixedWidthIntegerURIHandler("http://rdf.ncbi.nlm.nih.gov/pubchem/compound/","CID_", 7);
* </code>
*
* This has support for overloading on a single namespace {@link InlineLocalNameIntegerURIHandler}.
*
* @author beebs
*/
public class InlinePrefixedFixedWidthIntegerURIHandler extends
InlineLocalNameIntegerURIHandler implements IPrefixedURIHandler {
private String prefix = null;
private int width = 0;
public InlinePrefixedFixedWidthIntegerURIHandler(final String namespace, final String prefix, final int width) {
super(namespace);
this.prefix = prefix;
this.width = width;
}
public InlinePrefixedFixedWidthIntegerURIHandler(final String namespace, final String prefix, final int width, final int id) {
super(namespace);
this.prefix = prefix;
this.width = width;
this.packedId = id;
}
@Override
@SuppressWarnings("rawtypes")
protected AbstractLiteralIV createInlineIV(String localName) {
if (!localName.startsWith(this.prefix)) {
return null;
}
final String intValue = getPackedValueString(localName.substring(this.prefix.length(), localName.length()));
return super.createInlineIV(intValue);
}
@Override
public String getLocalNameFromDelegate(
AbstractLiteralIV<BigdataLiteral, ?> delegate) {
final String intStr = super.getLocalNameFromDelegate(delegate);
final int intVal = (int) getUnpackedValueFromString(intStr);
final String localName = this.prefix + String.format("%0" + width + "d", intVal);
return localName;
}
public String getPrefix() {
return prefix;
}
}