| /* |
| * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.xsom.impl.scd; |
| |
| import com.sun.xml.internal.xsom.SCD; |
| import com.sun.xml.internal.xsom.XSComponent; |
| |
| import java.util.Iterator; |
| |
| /** |
| * Schema component designator. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| public final class SCDImpl extends SCD { |
| /** |
| * SCD is fundamentally a list of steps. |
| */ |
| private final Step[] steps; |
| |
| /** |
| * The original textual SCD representation. |
| */ |
| private final String text; |
| |
| public SCDImpl(String text, Step[] steps) { |
| this.text = text; |
| this.steps = steps; |
| } |
| |
| public Iterator<XSComponent> select(Iterator<? extends XSComponent> contextNode) { |
| Iterator<XSComponent> nodeSet = (Iterator)contextNode; |
| |
| int len = steps.length; |
| for( int i=0; i<len; i++ ) { |
| if(i!=0 && i!=len-1 && !steps[i-1].axis.isModelGroup() && steps[i].axis.isModelGroup()) { |
| // expand the current nodeset by adding abbreviatable complex type and model groups. |
| // note that such expansion is not allowed to occure in in between model group axes. |
| |
| // TODO: this step is not needed if the next step is known not to react to |
| // complex type nor model groups, such as, say Axis.FACET |
| nodeSet = new Iterators.Unique<XSComponent>( |
| new Iterators.Map<XSComponent,XSComponent>(nodeSet) { |
| protected Iterator<XSComponent> apply(XSComponent u) { |
| return new Iterators.Union<XSComponent>( |
| Iterators.singleton(u), |
| Axis.INTERMEDIATE_SKIP.iterator(u) ); |
| } |
| } |
| ); |
| } |
| nodeSet = steps[i].evaluate(nodeSet); |
| } |
| |
| return nodeSet; |
| } |
| |
| public String toString() { |
| return text; |
| } |
| } |