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/*
 * Copyright (c) 1997, 2022 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.xml.xsom.impl.util;

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.XSContentType;
import com.sun.xml.xsom.XSElementDecl;
import com.sun.xml.xsom.XSFacet;
import com.sun.xml.xsom.XSIdentityConstraint;
import com.sun.xml.xsom.XSListSimpleType;
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.XSRestrictionSimpleType;
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.XSUnionSimpleType;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.XSXPath;
import com.sun.xml.xsom.XSWildcard.Any;
import com.sun.xml.xsom.XSWildcard.Other;
import com.sun.xml.xsom.XSWildcard.Union;
import com.sun.xml.xsom.impl.Const;
import com.sun.xml.xsom.visitor.XSSimpleTypeVisitor;
import com.sun.xml.xsom.visitor.XSTermVisitor;
import com.sun.xml.xsom.visitor.XSVisitor;
import com.sun.xml.xsom.visitor.XSWildcardFunction;

import java.io.IOException;
import java.io.Writer;
import java.math.BigInteger;
import java.text.MessageFormat;
import java.util.Iterator;

/**
 * Generates approximated XML Schema representation from
 * a schema component. This is not intended to be a fully-fledged
 * round-trippable schema writer.
 *
 * 

Usage of this class

*
    *
  1. Create a new instance with whatever Writer * you'd like to send the output to. *
  2. Call one of the overloaded dump methods. * You can repeat this process as many times as you want. *
* * @author Kohsuke Kawaguchi ([email protected]) * @author Kirill Grouchnikov ([email protected]) */ public class SchemaWriter implements XSVisitor, XSSimpleTypeVisitor { public SchemaWriter( Writer _out ) { this.out=_out; } /** output is sent to this object. */ private final Writer out; /** indentation. */ private int indent; private void println(String s) { try { for( int i=0; i", s.getTargetNamespace())); indent++; Iterator itr; itr = s.iterateAttGroupDecls(); while(itr.hasNext()) attGroupDecl( (XSAttGroupDecl)itr.next() ); itr = s.iterateAttributeDecls(); while(itr.hasNext()) attributeDecl( (XSAttributeDecl)itr.next() ); itr = s.iterateComplexTypes(); while(itr.hasNext()) complexType( (XSComplexType)itr.next() ); itr = s.iterateElementDecls(); while(itr.hasNext()) elementDecl( (XSElementDecl)itr.next() ); itr = s.iterateModelGroupDecls(); while(itr.hasNext()) modelGroupDecl( (XSModelGroupDecl)itr.next() ); itr = s.iterateSimpleTypes(); while(itr.hasNext()) simpleType( (XSSimpleType)itr.next() ); indent--; println(""); } public void attGroupDecl( XSAttGroupDecl decl ) { Iterator itr; println(MessageFormat.format("", decl.getName())); indent++; // TODO: wildcard itr = decl.iterateAttGroups(); while(itr.hasNext()) dumpRef( (XSAttGroupDecl)itr.next() ); itr = decl.iterateDeclaredAttributeUses(); while(itr.hasNext()) attributeUse( (XSAttributeUse)itr.next() ); indent--; println(""); } public void dumpRef( XSAttGroupDecl decl ) { println(MessageFormat.format("", decl.getTargetNamespace(), decl.getName())); } public void attributeUse( XSAttributeUse use ) { XSAttributeDecl decl = use.getDecl(); String additionalAtts=""; if(use.isRequired()) additionalAtts += " use=\"required\""; if(use.getFixedValue()!=null && use.getDecl().getFixedValue()==null) additionalAtts += " fixed=\""+use.getFixedValue()+'\"'; if(use.getDefaultValue()!=null && use.getDecl().getDefaultValue()==null) additionalAtts += " default=\""+use.getDefaultValue()+'\"'; if(decl.isLocal()) { // this is anonymous attribute use dump(decl,additionalAtts); } else { // reference to a global one println(MessageFormat.format("", decl.getTargetNamespace(), decl.getName(), additionalAtts)); } } public void attributeDecl( XSAttributeDecl decl ) { dump(decl,""); } private void dump( XSAttributeDecl decl, String additionalAtts ) { XSSimpleType type=decl.getType(); println(MessageFormat.format("", decl.getName(), additionalAtts, type.isLocal()?"": MessageFormat.format(" type=\"'{'{0}'}'{1}\"", type.getTargetNamespace(), type.getName()), decl.getFixedValue()==null ? "":" fixed=\""+decl.getFixedValue()+'\"', decl.getDefaultValue()==null ? "":" default=\""+decl.getDefaultValue()+'\"', type.isLocal()?"":" /")); if(type.isLocal()) { indent++; simpleType(type); indent--; println(""); } } public void simpleType( XSSimpleType type ) { println(MessageFormat.format("", type.isLocal()?"":" name=\""+type.getName()+'\"')); indent++; type.visit((XSSimpleTypeVisitor)this); indent--; println(""); } public void listSimpleType( XSListSimpleType type ) { XSSimpleType itemType = type.getItemType(); if(itemType.isLocal()) { println(""); indent++; simpleType(itemType); indent--; println(""); } else { // global type println(MessageFormat.format("", itemType.getTargetNamespace(), itemType.getName())); } } public void unionSimpleType( XSUnionSimpleType type ) { final int len = type.getMemberSize(); StringBuilder ref = new StringBuilder(); for( int i=0; i"); else println(""); indent++; for( int i=0; i"); } public void restrictionSimpleType( XSRestrictionSimpleType type ) { if(type.getBaseType()==null) { // don't print anySimpleType if(!type.getName().equals("anySimpleType")) throw new InternalError(); if(!Const.schemaNamespace.equals(type.getTargetNamespace())) throw new InternalError(); return; } XSSimpleType baseType = type.getSimpleBaseType(); println(MessageFormat.format("", baseType.isLocal()?"":" base=\"{"+ baseType.getTargetNamespace()+'}'+ baseType.getName()+'\"')); indent++; if(baseType.isLocal()) simpleType(baseType); Iterator itr = type.iterateDeclaredFacets(); while(itr.hasNext()) facet( (XSFacet)itr.next() ); indent--; println(""); } public void facet( XSFacet facet ) { println(MessageFormat.format("<{0} value=\"{1}\"/>", facet.getName(), facet.getValue())); } public void notation( XSNotation notation ) { println(MessageFormat.format(""); indent++; XSType baseType = type.getBaseType(); if(type.getDerivationMethod()==XSType.RESTRICTION) { // restriction println(MessageFormat.format("{1}\">", baseType.getTargetNamespace(), baseType.getName())); indent++; dumpComplexTypeAttribute(type); indent--; println(""); } else { // extension println(MessageFormat.format("{1}\">", baseType.getTargetNamespace(), baseType.getName())); // check if have redefine tag - Kirill if( type.isGlobal() && type.getTargetNamespace().equals(baseType.getTargetNamespace()) && type.getName().equals(baseType.getName())) { indent++; println(""); indent++; baseType.visit(this); indent--; println(""); indent--; } indent++; dumpComplexTypeAttribute(type); indent--; println(""); } indent--; println(""); } else { // complex content println(""); indent++; XSComplexType baseType = type.getBaseType().asComplexType(); if(type.getDerivationMethod()==XSType.RESTRICTION) { // restriction println(MessageFormat.format("", baseType.getTargetNamespace(), baseType.getName())); indent++; type.getContentType().visit(this); dumpComplexTypeAttribute(type); indent--; println(""); } else { // extension println(MessageFormat.format("", baseType.getTargetNamespace(), baseType.getName())); // check if have redefine - Kirill if( type.isGlobal() && type.getTargetNamespace().equals(baseType.getTargetNamespace()) && type.getName().equals(baseType.getName())) { indent++; println(""); indent++; baseType.visit(this); indent--; println(""); indent--; } indent++; type.getExplicitContent().visit(this); dumpComplexTypeAttribute(type); indent--; println(""); } indent--; println(""); } indent--; println(""); } private void dumpComplexTypeAttribute( XSComplexType type ) { Iterator itr; itr = type.iterateAttGroups(); while(itr.hasNext()) dumpRef( (XSAttGroupDecl)itr.next() ); itr = type.iterateDeclaredAttributeUses(); while(itr.hasNext()) attributeUse( (XSAttributeUse)itr.next() ); XSWildcard awc = type.getAttributeWildcard(); if(awc!=null) wildcard("anyAttribute",awc,""); } public void elementDecl( XSElementDecl decl ) { elementDecl(decl,""); } private void elementDecl( XSElementDecl decl, String extraAtts ) { XSType type = decl.getType(); // TODO: various other attributes // qualified attr; Issue if(decl.getForm() != null) { extraAtts += " form=\"" + (decl.getForm() ? "qualified" : "unqualified" ) + "\""; } println(MessageFormat.format("", decl.getName(), type.isLocal()?"":" type=\"{"+ type.getTargetNamespace()+'}'+ type.getName()+'\"', extraAtts, type.isLocal()?"":"/")); if(type.isLocal()) { indent++; if(type.isLocal()) type.visit(this); indent--; println(""); } } public void modelGroupDecl( XSModelGroupDecl decl ) { println(MessageFormat.format("", decl.getName())); indent++; modelGroup(decl.getModelGroup()); indent--; println(""); } public void modelGroup( XSModelGroup group ) { modelGroup(group,""); } private void modelGroup( XSModelGroup group, String extraAtts ) { println(MessageFormat.format("<{0}{1}>", group.getCompositor(), extraAtts)); indent++; final int len = group.getSize(); for( int i=0; i", group.getCompositor())); } public void particle( XSParticle part ) { BigInteger i; StringBuilder buf = new StringBuilder(); i = part.getMaxOccurs(); if(i.equals(BigInteger.valueOf(XSParticle.UNBOUNDED))) buf.append(" maxOccurs=\"unbounded\""); else if(!i.equals(BigInteger.ONE)) buf.append(" maxOccurs=\"").append(i).append('\"'); i = part.getMinOccurs(); if(!i.equals(BigInteger.ONE)) buf.append(" minOccurs=\"").append(i).append('\"'); final String extraAtts = buf.toString(); part.getTerm().visit(new XSTermVisitor(){ public void elementDecl( XSElementDecl decl ) { if(decl.isLocal()) SchemaWriter.this.elementDecl(decl,extraAtts); else { // reference println(MessageFormat.format("", decl.getTargetNamespace(), decl.getName(), extraAtts)); } } public void modelGroupDecl( XSModelGroupDecl decl ) { // reference println(MessageFormat.format("", decl.getTargetNamespace(), decl.getName(), extraAtts)); } public void modelGroup( XSModelGroup group ) { SchemaWriter.this.modelGroup(group,extraAtts); } public void wildcard( XSWildcard wc ) { SchemaWriter.this.wildcard("any",wc,extraAtts); } }); } public void wildcard( XSWildcard wc ) { wildcard("any",wc,""); } private void wildcard( String tagName, XSWildcard wc, String extraAtts ) { final String proessContents; switch(wc.getMode()) { case XSWildcard.LAX: proessContents = " processContents='lax'";break; case XSWildcard.STRTICT: proessContents = "";break; case XSWildcard.SKIP: proessContents = " processContents='skip'";break; default: throw new AssertionError(); } println(MessageFormat.format("<{0}{1}{2}{3}/>",tagName, proessContents, wc.apply(WILDCARD_NS), extraAtts)); } private static final XSWildcardFunction WILDCARD_NS = new XSWildcardFunction<>() { public String any(Any wc) { return ""; // default } public String other(Other wc) { return " namespace='##other'"; } public String union(Union wc) { StringBuilder buf = new StringBuilder(" namespace='"); boolean first = true; for (String s : wc.getNamespaces()) { if (first) first = false; else buf.append(' '); buf.append(s); } return buf.append('\'').toString(); } }; public void annotation( XSAnnotation ann ) { // TODO: it would be nice even if we just put } public void identityConstraint(XSIdentityConstraint decl) { // TODO } public void xpath(XSXPath xp) { // TODO } public void empty( XSContentType t ) {} }




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