| /* |
| * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0, which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package com.sun.tools.xjc.reader.xmlschema; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.Collections; |
| |
| import com.sun.xml.xsom.XSAnnotation; |
| import com.sun.xml.xsom.XSAttGroupDecl; |
| import com.sun.xml.xsom.XSAttributeDecl; |
| import com.sun.xml.xsom.XSAttributeUse; |
| import com.sun.xml.xsom.XSComplexType; |
| import com.sun.xml.xsom.XSComponent; |
| import com.sun.xml.xsom.XSContentType; |
| import com.sun.xml.xsom.XSElementDecl; |
| import com.sun.xml.xsom.XSFacet; |
| import com.sun.xml.xsom.XSIdentityConstraint; |
| import com.sun.xml.xsom.XSModelGroup; |
| import com.sun.xml.xsom.XSModelGroupDecl; |
| import com.sun.xml.xsom.XSNotation; |
| import com.sun.xml.xsom.XSParticle; |
| import com.sun.xml.xsom.XSSchema; |
| import com.sun.xml.xsom.XSSchemaSet; |
| import com.sun.xml.xsom.XSSimpleType; |
| import com.sun.xml.xsom.XSType; |
| import com.sun.xml.xsom.XSWildcard; |
| import com.sun.xml.xsom.XSXPath; |
| import com.sun.xml.xsom.visitor.XSVisitor; |
| |
| /** |
| * Finds which {@link XSComponent}s refer to which {@link XSComplexType}s. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| final class RefererFinder implements XSVisitor { |
| private final Set<Object> visited = new HashSet<Object>(); |
| |
| private final Map<XSComponent,Set<XSComponent>> referers = new HashMap<XSComponent,Set<XSComponent>>(); |
| |
| public Set<XSComponent> getReferer(XSComponent src) { |
| Set<XSComponent> r = referers.get(src); |
| if(r==null) return Collections.emptySet(); |
| return r; |
| } |
| |
| |
| public void schemaSet(XSSchemaSet xss) { |
| if(!visited.add(xss)) return; |
| |
| for (XSSchema xs : xss.getSchemas()) { |
| schema(xs); |
| } |
| } |
| |
| public void schema(XSSchema xs) { |
| if(!visited.add(xs)) return; |
| |
| for (XSComplexType ct : xs.getComplexTypes().values()) { |
| complexType(ct); |
| } |
| |
| for (XSElementDecl e : xs.getElementDecls().values()) { |
| elementDecl(e); |
| } |
| } |
| |
| public void elementDecl(XSElementDecl e) { |
| if(!visited.add(e)) return; |
| |
| refer(e,e.getType()); |
| e.getType().visit(this); |
| } |
| |
| public void complexType(XSComplexType ct) { |
| if(!visited.add(ct)) return; |
| |
| refer(ct,ct.getBaseType()); |
| ct.getBaseType().visit(this); |
| ct.getContentType().visit(this); |
| } |
| |
| public void modelGroupDecl(XSModelGroupDecl decl) { |
| if(!visited.add(decl)) return; |
| |
| modelGroup(decl.getModelGroup()); |
| } |
| |
| public void modelGroup(XSModelGroup group) { |
| if(!visited.add(group)) return; |
| |
| for (XSParticle p : group.getChildren()) { |
| particle(p); |
| } |
| } |
| |
| public void particle(XSParticle particle) { |
| // since the particle method is side-effect free, no need to check for double-visit. |
| particle.getTerm().visit(this); |
| } |
| |
| |
| // things we don't care |
| public void simpleType(XSSimpleType simpleType) {} |
| public void annotation(XSAnnotation ann) {} |
| public void attGroupDecl(XSAttGroupDecl decl) {} |
| public void attributeDecl(XSAttributeDecl decl) {} |
| public void attributeUse(XSAttributeUse use) {} |
| public void facet(XSFacet facet) {} |
| public void notation(XSNotation notation) {} |
| public void identityConstraint(XSIdentityConstraint decl) {} |
| public void xpath(XSXPath xp) {} |
| public void wildcard(XSWildcard wc) {} |
| public void empty(XSContentType empty) {} |
| |
| /** |
| * Called for each reference to record the fact. |
| * |
| * So far we only care about references to types. |
| */ |
| private void refer(XSComponent source, XSType target) { |
| Set<XSComponent> r = referers.get(target); |
| if(r==null) { |
| r = new HashSet<XSComponent>(); |
| referers.put(target,r); |
| } |
| r.add(source); |
| } |
| } |