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package com.sun.tools.xjc.reader.xmlschema;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import com.sun.tools.xjc.reader.Const;
import com.sun.tools.xjc.reader.Ring;
import com.sun.tools.xjc.reader.xmlschema.bindinfo.BIDeclaration;
import com.sun.xml.bind.v2.WellKnownNamespace;
import com.sun.xml.xsom.XSAnnotation;
import com.sun.xml.xsom.XSAttContainer;
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.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.XSUnionSimpleType;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.XSXPath;
import com.sun.xml.xsom.visitor.XSSimpleTypeVisitor;
import com.sun.xml.xsom.visitor.XSVisitor;
/**
* Reports all unacknowledged customizations as errors.
*
* <p>
* Since we scan the whole content tree, we use this to check for unused
* {@code xmime:expectedContentTypes} attributes.
* TODO: if we find this kind of error checks more
* common, use the visitors so that we don't have to mix everything in one class.
*
* @author
* Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
class UnusedCustomizationChecker extends BindingComponent implements XSVisitor, XSSimpleTypeVisitor {
private final BGMBuilder builder = Ring.get(BGMBuilder.class);
private final SimpleTypeBuilder stb = Ring.get(SimpleTypeBuilder.class);
private final Set<XSComponent> visitedComponents = new HashSet<XSComponent>();
/**
* Runs the check.
*/
void run() {
for( XSSchema s : Ring.get(XSSchemaSet.class).getSchemas() ) {
schema(s);
run( s.getAttGroupDecls() );
run( s.getAttributeDecls() );
run( s.getComplexTypes() );
run( s.getElementDecls() );
run( s.getModelGroupDecls() );
run( s.getNotations() );
run( s.getSimpleTypes() );
}
}
private void run( Map<String,? extends XSComponent> col ) {
for( XSComponent c : col.values() )
c.visit(this);
}
/**
* Checks unused customizations on this component
* and returns true if this is the first time this
* component is checked.
*/
private boolean check( XSComponent c ) {
if( !visitedComponents.add(c) )
return false; // already processed
for( BIDeclaration decl : builder.getBindInfo(c).getDecls() )
check(decl, c);
checkExpectedContentTypes(c);
return true;
}
private void checkExpectedContentTypes(XSComponent c) {
if(c.getForeignAttribute(WellKnownNamespace.XML_MIME_URI, Const.EXPECTED_CONTENT_TYPES)==null)
return; // no such attribute
if(c instanceof XSParticle)
return; // particles get the same foreign attributes as local element decls,
// so we need to skip them
if(!stb.isAcknowledgedXmimeContentTypes(c)) {
// this is not used
getErrorReporter().warning(c.getLocator(),Messages.WARN_UNUSED_EXPECTED_CONTENT_TYPES);
}
}
private void check(BIDeclaration decl, XSComponent c) {
if( !decl.isAcknowledged() ) {
getErrorReporter().error(
decl.getLocation(),
Messages.ERR_UNACKNOWLEDGED_CUSTOMIZATION,
decl.getName().getLocalPart()
);
getErrorReporter().error(
c.getLocator(),
Messages.ERR_UNACKNOWLEDGED_CUSTOMIZATION_LOCATION);
// mark it as acknowledged to avoid
// duplicated error messages.
decl.markAsAcknowledged();
}
for (BIDeclaration d : decl.getChildren())
check(d,c);
}
public void annotation(XSAnnotation ann) {}
public void attGroupDecl(XSAttGroupDecl decl) {
if(check(decl))
attContainer(decl);
}
public void attributeDecl(XSAttributeDecl decl) {
if(check(decl))
decl.getType().visit((XSSimpleTypeVisitor)this);
}
public void attributeUse(XSAttributeUse use) {
if(check(use))
use.getDecl().visit(this);
}
public void complexType(XSComplexType type) {
if(check(type)) {
// don't need to check the base type -- it must be global, thus
// it is covered already
type.getContentType().visit(this);
attContainer(type);
}
}
private void attContainer( XSAttContainer cont ) {
for( Iterator itr = cont.iterateAttGroups(); itr.hasNext(); )
((XSAttGroupDecl)itr.next()).visit(this);
for( Iterator itr = cont.iterateDeclaredAttributeUses(); itr.hasNext(); )
((XSAttributeUse)itr.next()).visit(this);
XSWildcard wc = cont.getAttributeWildcard();
if(wc!=null) wc.visit(this);
}
public void schema(XSSchema schema) {
check(schema);
}
public void facet(XSFacet facet) {
check(facet);
}
public void notation(XSNotation notation) {
check(notation);
}
public void wildcard(XSWildcard wc) {
check(wc);
}
public void modelGroupDecl(XSModelGroupDecl decl) {
if(check(decl))
decl.getModelGroup().visit(this);
}
public void modelGroup(XSModelGroup group) {
if(check(group)) {
for( int i=0; i<group.getSize(); i++ )
group.getChild(i).visit(this);
}
}
public void elementDecl(XSElementDecl decl) {
if(check(decl)) {
decl.getType().visit(this);
for( XSIdentityConstraint id : decl.getIdentityConstraints() )
id.visit(this);
}
}
public void simpleType(XSSimpleType simpleType) {
if(check(simpleType))
simpleType.visit( (XSSimpleTypeVisitor)this );
}
public void particle(XSParticle particle) {
if(check(particle))
particle.getTerm().visit(this);
}
public void empty(XSContentType empty) {
check(empty);
}
public void listSimpleType(XSListSimpleType type) {
if(check(type))
type.getItemType().visit((XSSimpleTypeVisitor)this);
}
public void restrictionSimpleType(XSRestrictionSimpleType type) {
if(check(type))
type.getBaseType().visit(this);
}
public void unionSimpleType(XSUnionSimpleType type) {
if(check(type)) {
for( int i=0; i<type.getMemberSize(); i++ )
type.getMember(i).visit((XSSimpleTypeVisitor)this);
}
}
public void identityConstraint(XSIdentityConstraint id) {
if(check(id)) {
id.getSelector().visit(this);
for( XSXPath xp : id.getFields() )
xp.visit(this);
}
}
public void xpath(XSXPath xp) {
check(xp);
}
}