| /* |
| * Copyright (c) 1997, 2011, 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.tools.internal.xjc.reader.internalizer; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import javax.xml.bind.JAXBException; |
| import javax.xml.bind.Unmarshaller; |
| import javax.xml.bind.UnmarshallerHandler; |
| import javax.xml.validation.ValidatorHandler; |
| |
| import com.sun.istack.internal.NotNull; |
| import com.sun.istack.internal.SAXParseException2; |
| import com.sun.tools.internal.xjc.ErrorReceiver; |
| import com.sun.tools.internal.xjc.reader.xmlschema.bindinfo.BIDeclaration; |
| import com.sun.tools.internal.xjc.reader.xmlschema.bindinfo.BindInfo; |
| import com.sun.tools.internal.xjc.util.ForkContentHandler; |
| import com.sun.tools.internal.xjc.util.DOMUtils; |
| import com.sun.xml.internal.xsom.SCD; |
| import com.sun.xml.internal.xsom.XSAnnotation; |
| import com.sun.xml.internal.xsom.XSComponent; |
| import com.sun.xml.internal.xsom.XSSchemaSet; |
| |
| import org.w3c.dom.Element; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * Set of binding nodes that have target nodes specified via SCD. |
| * |
| * This is parsed during {@link Internalizer} works on the tree, |
| * but applying this has to wait for {@link XSSchemaSet} to be parsed. |
| * |
| * @author Kohsuke Kawaguchi |
| * @see SCD |
| */ |
| public final class SCDBasedBindingSet { |
| |
| /** |
| * Represents the target schema component of the |
| * customization identified by SCD. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| final class Target { |
| /** |
| * SCDs can be specified via multiple steps, like: |
| * |
| * <xmp> |
| * <bindings scd="foo/bar"> |
| * <bindings scd="zot/xyz"> |
| * </xmp> |
| * |
| * This field and {@link #nextSibling} form a single-linked list that |
| * represent the children that shall be evaluated within this target. |
| * Think of it as {@code List<Target>}. |
| */ |
| private Target firstChild; |
| private final Target nextSibling; |
| |
| /** |
| * Compiled SCD. |
| */ |
| private final @NotNull SCD scd; |
| |
| /** |
| * The element on which SCD was found. |
| */ |
| private final @NotNull Element src; |
| |
| /** |
| * Bindings that apply to this SCD. |
| */ |
| private final List<Element> bindings = new ArrayList<Element>(); |
| |
| private Target(Target parent, Element src, SCD scd) { |
| if(parent==null) { |
| this.nextSibling = topLevel; |
| topLevel = this; |
| } else { |
| this.nextSibling = parent.firstChild; |
| parent.firstChild = this; |
| } |
| this.src = src; |
| this.scd = scd; |
| } |
| |
| /** |
| * Adds a new binding declaration to be associated to the schema component |
| * identified by {@link #scd}. |
| */ |
| void addBinidng(Element binding) { |
| bindings.add(binding); |
| } |
| |
| /** |
| * Applies bindings to the schema component for this and its siblings. |
| */ |
| private void applyAll(Collection<? extends XSComponent> contextNode) { |
| for( Target self=this; self!=null; self=self.nextSibling ) |
| self.apply(contextNode); |
| } |
| |
| /** |
| * Applies bindings to the schema component for just this node. |
| */ |
| private void apply(Collection<? extends XSComponent> contextNode) { |
| // apply the SCD... |
| Collection<XSComponent> childNodes = scd.select(contextNode); |
| if(childNodes.isEmpty()) { |
| // no node matched |
| if(src.getAttributeNode("if-exists")!=null) { |
| // if this attribute exists, it's not an error if SCD didn't match. |
| return; |
| } |
| |
| reportError( src, Messages.format(Messages.ERR_SCD_EVALUATED_EMPTY,scd) ); |
| return; |
| } |
| |
| if(firstChild!=null) |
| firstChild.applyAll(childNodes); |
| |
| if(!bindings.isEmpty()) { |
| // error to match more than one components |
| Iterator<XSComponent> itr = childNodes.iterator(); |
| XSComponent target = itr.next(); |
| if(itr.hasNext()) { |
| reportError( src, Messages.format(Messages.ERR_SCD_MATCHED_MULTIPLE_NODES,scd,childNodes.size()) ); |
| errorReceiver.error( target.getLocator(), Messages.format(Messages.ERR_SCD_MATCHED_MULTIPLE_NODES_FIRST) ); |
| errorReceiver.error( itr.next().getLocator(), Messages.format(Messages.ERR_SCD_MATCHED_MULTIPLE_NODES_SECOND) ); |
| } |
| |
| // apply bindings to the target |
| for (Element binding : bindings) { |
| for (Element item : DOMUtils.getChildElements(binding)) { |
| String localName = item.getLocalName(); |
| |
| if ("bindings".equals(localName)) |
| continue; // this should be already in Target.bindings of some SpecVersion. |
| |
| try { |
| new DOMForestScanner(forest).scan(item,loader); |
| BIDeclaration decl = (BIDeclaration)unmarshaller.getResult(); |
| |
| // add this binding to the target |
| XSAnnotation ann = target.getAnnotation(true); |
| BindInfo bi = (BindInfo)ann.getAnnotation(); |
| if(bi==null) { |
| bi = new BindInfo(); |
| ann.setAnnotation(bi); |
| } |
| bi.addDecl(decl); |
| } catch (SAXException e) { |
| // the error should have already been reported. |
| } catch (JAXBException e) { |
| // if validation didn't fail, then unmarshalling can't go wrong |
| throw new AssertionError(e); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| private Target topLevel; |
| |
| /** |
| * The forest where binding elements came from. Needed to report line numbers for errors. |
| */ |
| private final DOMForest forest; |
| |
| |
| // variables used only during the apply method |
| // |
| private ErrorReceiver errorReceiver; |
| private UnmarshallerHandler unmarshaller; |
| private ForkContentHandler loader; // unmarshaller+validator |
| |
| SCDBasedBindingSet(DOMForest forest) { |
| this.forest = forest; |
| } |
| |
| Target createNewTarget(Target parent, Element src, SCD scd) { |
| return new Target(parent,src,scd); |
| } |
| |
| /** |
| * Applies the additional binding customizations. |
| */ |
| public void apply(XSSchemaSet schema, ErrorReceiver errorReceiver) { |
| if(topLevel!=null) { |
| this.errorReceiver = errorReceiver; |
| Unmarshaller u = BindInfo.getCustomizationUnmarshaller(); |
| this.unmarshaller = u.getUnmarshallerHandler(); |
| ValidatorHandler v = BindInfo.bindingFileSchema.newValidator(); |
| v.setErrorHandler(errorReceiver); |
| loader = new ForkContentHandler(v,unmarshaller); |
| |
| topLevel.applyAll(schema.getSchemas()); |
| |
| this.loader = null; |
| this.unmarshaller = null; |
| this.errorReceiver = null; |
| } |
| } |
| |
| private void reportError( Element errorSource, String formattedMsg ) { |
| reportError( errorSource, formattedMsg, null ); |
| } |
| |
| private void reportError( Element errorSource, |
| String formattedMsg, Exception nestedException ) { |
| |
| SAXParseException e = new SAXParseException2( formattedMsg, |
| forest.locatorTable.getStartLocation(errorSource), |
| nestedException ); |
| errorReceiver.error(e); |
| } |
| } |