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package com.sun.xml.xsom.impl.parser;
import com.sun.xml.xsom.XSAttGroupDecl;
import com.sun.xml.xsom.XSAttributeDecl;
import com.sun.xml.xsom.XSComplexType;
import com.sun.xml.xsom.XSDeclaration;
import com.sun.xml.xsom.XSElementDecl;
import com.sun.xml.xsom.XSIdentityConstraint;
import com.sun.xml.xsom.XSModelGroupDecl;
import com.sun.xml.xsom.XSSchemaSet;
import com.sun.xml.xsom.XSSimpleType;
import com.sun.xml.xsom.XSTerm;
import com.sun.xml.xsom.XSType;
import com.sun.xml.xsom.impl.Ref;
import com.sun.xml.xsom.impl.SchemaImpl;
import com.sun.xml.xsom.impl.UName;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
/**
* Reference by name.
*
* UName will be later resolved to a target object,
* after all the schemas are parsed.
*/
public abstract class DelayedRef implements Patch {
DelayedRef( PatcherManager _manager, Locator _source, SchemaImpl _schema, UName _name ) {
this.schema = _schema.getRoot();
this.manager = _manager;
this.name = _name;
this.source = _source;
if(name==null) throw new InternalError();
manager.addPatcher(this);
}
/**
* Patch implementation. Makes sure that the name resolves
* to a schema component.
*/
public void run() throws SAXException {
if(ref==null) // redefinition can set ref without actually resolving the reference
resolve();
manager = null; // avoid keeping the reference too long
name = null;
source = null;
}
protected final XSSchemaSet schema;
private PatcherManager manager;
private UName name;
/** location in the source file where this reference was made. */
private Locator source;
protected abstract Object resolveReference( UName name );
protected abstract String getErrorProperty();
private Object ref=null;
protected final Object _get() {
if(ref==null) throw new InternalError("unresolved reference");
return ref;
}
private void resolve() throws SAXException {
ref = resolveReference(name);
if(ref==null)
manager.reportError(
Messages.format(getErrorProperty(),name.getQualifiedName()),
source );
}
/**
* If this reference refers to the given declaration,
* resolve the reference now. This is used to implement redefinition.
*/
public void redefine(XSDeclaration d) {
if( !d.getTargetNamespace().equals(name.getNamespaceURI())
|| !d.getName().equals(name.getName()) )
return;
ref = d;
manager = null;
name = null;
source = null;
}
public static class Type extends DelayedRef implements Ref.Type {
public Type( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
Object o = super.schema.getSimpleType(
name.getNamespaceURI(), name.getName() );
if(o!=null) return o;
return super.schema.getComplexType(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_TYPE;
}
public XSType getType() { return (XSType)super._get(); }
}
public static class SimpleType extends DelayedRef implements Ref.SimpleType {
public SimpleType( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
public XSSimpleType getType() { return (XSSimpleType)_get(); }
protected Object resolveReference( UName name ) {
return super.schema.getSimpleType(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_SIMPLETYPE;
}
}
public static class ComplexType extends DelayedRef implements Ref.ComplexType {
public ComplexType( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getComplexType(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_COMPLEXTYPE;
}
public XSComplexType getType() { return (XSComplexType)super._get(); }
}
public static class Element extends DelayedRef implements Ref.Element {
public Element( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getElementDecl(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_ELEMENT;
}
public XSElementDecl get() { return (XSElementDecl)super._get(); }
public XSTerm getTerm() { return get(); }
}
public static class ModelGroup extends DelayedRef implements Ref.Term {
public ModelGroup( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getModelGroupDecl(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_MODELGROUP;
}
public XSModelGroupDecl get() { return (XSModelGroupDecl)super._get(); }
public XSTerm getTerm() { return get(); }
}
public static class AttGroup extends DelayedRef implements Ref.AttGroup {
public AttGroup( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getAttGroupDecl(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_ATTRIBUTEGROUP;
}
public XSAttGroupDecl get() { return (XSAttGroupDecl)super._get(); }
}
public static class Attribute extends DelayedRef implements Ref.Attribute {
public Attribute( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getAttributeDecl(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_ATTRIBUTE;
}
public XSAttributeDecl getAttribute() { return (XSAttributeDecl)super._get(); }
}
public static class IdentityConstraint extends DelayedRef implements Ref.IdentityConstraint {
public IdentityConstraint( PatcherManager manager, Locator loc, SchemaImpl schema, UName name ) {
super(manager,loc,schema,name);
}
protected Object resolveReference( UName name ) {
return super.schema.getIdentityConstraint(
name.getNamespaceURI(),
name.getName());
}
protected String getErrorProperty() {
return Messages.ERR_UNDEFINED_IDENTITY_CONSTRAINT;
}
public XSIdentityConstraint get() { return (XSIdentityConstraint)super._get(); }
}
}