/**
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.impl.uri;
import org.openrdf.model.URI;
import org.openrdf.model.Value;
import com.bigdata.rdf.internal.DTE;
import com.bigdata.rdf.internal.IInlineUnicode;
import com.bigdata.rdf.internal.IV;
import com.bigdata.rdf.internal.IVUnicode;
import com.bigdata.rdf.internal.VTE;
import com.bigdata.rdf.internal.impl.AbstractInlineIV;
import com.bigdata.rdf.lexicon.LexiconRelation;
import com.bigdata.rdf.model.BigdataURI;
import com.bigdata.rdf.model.BigdataValueFactory;
/**
* Implementation for inline {@link URI}s. All information is inlined. This
* class is mainly targeted at inlining at fully inlining URIs in scale-out
* (which can be an attractive option).
*/
public class FullyInlineURIIV<V extends BigdataURI> extends AbstractInlineIV<V, URI>
implements IInlineUnicode, URI {
/**
*
*/
private static final long serialVersionUID = 1L;
private final URI uri;
/** The cached byte length of this {@link IV}. */
private transient int byteLength = 0;
public IV<V, URI> clone(final boolean clearCache) {
final FullyInlineURIIV<V> tmp = new FullyInlineURIIV<V>(uri);
// propagate transient state if available.
tmp.byteLength = byteLength;
if (!clearCache) {
tmp.setValue(getValueCache());
}
return tmp;
}
public FullyInlineURIIV(final URI uri) {
this(uri, 0/* byteLength */);
}
public FullyInlineURIIV(final URI uri, final int byteLength) {
super(VTE.URI, DTE.XSDString);
if (uri == null)
throw new IllegalArgumentException();
this.uri = uri;
this.byteLength = byteLength;
}
final public URI getInlineValue() {
return uri;
}
final public String toString() {
return uri.stringValue();
}
@SuppressWarnings("unchecked")
public V asValue(final LexiconRelation lex) {
V v = getValueCache();
if (v == null) {
final BigdataValueFactory f = lex.getValueFactory();
v = (V) f.createURI(uri.stringValue());
v.setIV(this);
setValue(v);
}
return v;
}
public boolean equals(final Object o) {
if (this == o)
return true;
if (o instanceof FullyInlineURIIV<?>) {
return uri.stringValue().equals(((FullyInlineURIIV<?>) o).stringValue());
}
return false;
}
/**
* Return the hash code of the {@link URI}'s string value (per the openrdf
* API).
*/
public int hashCode() {
return uri.stringValue().hashCode();
}
public int byteLength() {
if (byteLength == 0) {
// Cache the byteLength if not yet set.
byteLength = 1 // flags
+ IVUnicode.byteLengthUnicode(uri.stringValue())//
;
}
return byteLength;
}
final public void setByteLength(final int byteLength) {
if (byteLength < 0)
throw new IllegalArgumentException();
if (this.byteLength != 0 && this.byteLength != byteLength)
throw new IllegalStateException();
this.byteLength = byteLength;
}
@Override
public int _compareTo(final IV o) {
final FullyInlineURIIV<?> t = (FullyInlineURIIV<?>) o;
return IVUnicode.IVUnicodeComparator.INSTANCE.compare(
uri.stringValue(), t.uri.stringValue());
// return uri.stringValue().compareTo(id2);
// return id == id2 ? 0 : id < id2 ? -1 : 1;
}
/**
* Because we this is a fully inlined URI, we do not need the
* materialized URI to answer the URI interface methods.
*/
@Override
public boolean needsMaterialization() {
return false;
}
/**
* Implements {@link Value#stringValue()}.
*/
@Override
public String stringValue() {
return uri.stringValue();
}
/**
* Implements {@link URI#getLocalName()}.
*/
@Override
public String getLocalName() {
return uri.getLocalName();
}
/**
* Implements {@link URI#getNamespace()}.
*/
@Override
public String getNamespace() {
return uri.getNamespace();
}
}