/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.wfs.kvp;
import javax.xml.namespace.QName;
import org.geoserver.catalog.Catalog;
import org.geoserver.catalog.NamespaceInfo;
import org.geoserver.ows.FlatKvpParser;
import org.geoserver.wfs.WFSException;
/**
* Abstract kvp parser for parsing qualified names of the form "([prefix:]local)+".
* <p>
* This parser will parse strings of the above format into a list of
* {@link javax.xml.namespace.QName}
* </p>
* @author Justin Deoliveira, The Open Planning Project
*
*/
public class QNameKvpParser extends FlatKvpParser {
/**
* catalog for namespace lookups.
*/
protected Catalog catalog;
private final boolean strict;
public QNameKvpParser(String key, Catalog catalog) {
this(key, catalog, true);
}
/**
*
* @param key
* the key this kvp parser parses the value for
* @param catalog
* the catalog where to check if the namespace given by the qualified name prefix
* exists
* @param strict
* if {@code true} and the qname being parsed contains a namespace prefix that does
* not match a namespace from {@code catalog}, an exception will be thrown, otherwise a {@code QName}
* with prefix and localName but without namespace will be returned.
*/
protected QNameKvpParser(String key, Catalog catalog, boolean strict) {
super(key, QName.class);
this.catalog = catalog;
this.strict = strict;
}
/**
* Parses the token representing a type name, ( <prefix>:<local>, or <local> )
* into a {@link QName }.
* <p>
* If the latter form is supplied the QName is given the default namespace
* as specified in the catalog.
* </p>
*/
protected Object parseToken(String token) throws Exception {
int i = token.indexOf(':');
if (i != -1) {
String prefix = token.substring(0, i);
String local = token.substring(i + 1);
String uri = null;
if(prefix != null && !"".equals(prefix)) {
final NamespaceInfo namespace = catalog.getNamespaceByPrefix(prefix);
if(strict && namespace == null){
throw new WFSException("Unknown namespace [" + prefix + "]");
}
uri = namespace == null? null : namespace.getURI();
}
return new QName(uri, local, prefix);
} else {
/*
String uri = catalog.getDefaultNamespace().getURI();
String prefix = catalog.getDefaultNamespace().getPrefix();
String local = token;
return new QName(uri, local, prefix);
*/
return new QName(token);
}
}
}