/*
* @(#)$Id: NameExprConstructor.java 3619 2008-03-26 07:23:03Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* Makoto YUI - initial implementation
*/
package xbird.xquery.expr.constructor;
import xbird.xquery.DynamicError;
import xbird.xquery.XQueryException;
import xbird.xquery.dm.value.AtomicValue;
import xbird.xquery.dm.value.Sequence;
import xbird.xquery.dm.value.sequence.AtomizedSequence;
import xbird.xquery.dm.value.xsi.QNameValue;
import xbird.xquery.expr.AbstractXQExpression;
import xbird.xquery.expr.XQExpression;
import xbird.xquery.meta.*;
import xbird.xquery.misc.QNameUtil;
import xbird.xquery.misc.TypeUtil;
import xbird.xquery.misc.QNameTable.QualifiedName;
import xbird.xquery.type.Type;
import xbird.xquery.type.xs.*;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public abstract class NameExprConstructor extends AbstractXQExpression implements NodeConstructor {
private static final long serialVersionUID = 1L;
protected XQExpression _nameExpr = null;
public NameExprConstructor() {
super();
}
public XQExpression getNameExpr() {
return this._nameExpr;
}
public void setNameExpr(XQExpression e) {
this._nameExpr = e;
}
protected QualifiedName processNameExpr(Sequence contextSeq, DynamicContext dynEnv)
throws XQueryException {
final Sequence instNameSeq = _nameExpr.eval(contextSeq, dynEnv);
final Sequence<AtomicValue> qnameSeq = AtomizedSequence.wrap(instNameSeq, dynEnv);
final IFocus<AtomicValue> qnameItor = qnameSeq.iterator();
if(!qnameItor.hasNext()) {
qnameItor.closeQuietly();
reportError("err:XPTY0004", "Conversion of the atomized name expression to an expanded QName was not successful.");
}
final AtomicValue it = qnameItor.next();
if(qnameItor.hasNext()) {
qnameItor.closeQuietly();
reportError("err:XPTY0004", "Conversion of the atomized name expression to an expanded QName was not successful.");
}
qnameItor.closeQuietly();
final QualifiedName namev;
final Type t = it.getType();
if(TypeUtil.subtypeOf(t, QNameType.QNAME)) {
final QNameValue qname = ((AtomicValue) it).castAs(QNameType.QNAME, dynEnv);
namev = qname.getValue();
} else if(TypeUtil.subtypeOf(t, StringType.STRING) || t == UntypedAtomicType.UNTYPED_ATOMIC) {
final StaticContext sc = dynEnv.getStaticContext();
try {
final CharSequence namecs = it.stringValue();
final String namestr = (namecs == null) ? null : namecs.toString();
namev = QNameUtil.parse(namestr, sc.getStaticalyKnownNamespaces(), sc.getDefaultElementNamespace());
} catch (Exception e) {
throw new DynamicError("err:XQDY0074", e);
}
} else {
reportError("err:XPTY0004", "Convertion to name expression is failed.");
throw new IllegalStateException();
}
return namev;
}
}