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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.impl.scd;
import java.util.ArrayList;
import java.util.List;
import org.apache.xerces.impl.xs.util.XSObjectListImpl;
import org.apache.xerces.xni.NamespaceContext;
import org.apache.xerces.xni.QName;
import org.apache.xerces.xs.XSAttributeDeclaration;
import org.apache.xerces.xs.XSAttributeGroupDefinition;
import org.apache.xerces.xs.XSAttributeUse;
import org.apache.xerces.xs.XSComplexTypeDefinition;
import org.apache.xerces.xs.XSConstants;
import org.apache.xerces.xs.XSElementDeclaration;
import org.apache.xerces.xs.XSFacet;
import org.apache.xerces.xs.XSIDCDefinition;
import org.apache.xerces.xs.XSModel;
import org.apache.xerces.xs.XSModelGroup;
import org.apache.xerces.xs.XSModelGroupDefinition;
import org.apache.xerces.xs.XSMultiValueFacet;
import org.apache.xerces.xs.XSNamedMap;
import org.apache.xerces.xs.XSNotationDeclaration;
import org.apache.xerces.xs.XSObject;
import org.apache.xerces.xs.XSObjectList;
import org.apache.xerces.xs.XSParticle;
import org.apache.xerces.xs.XSSimpleTypeDefinition;
import org.apache.xerces.xs.XSTerm;
import org.apache.xerces.xs.XSTypeDefinition;
import org.apache.xerces.xs.XSWildcard;
/**
* Implements XML Schema: Component Designators (SCD)
* Currently, this implementation has following limitations
* 1. the Schema Step is not supported
* 2. the axis types; Extension axis, Assertions axis, Alternative axis, Context axis
* are not supported
* 3. Extension accessors are not supported
* 4. the top level Identity Constraint Definitions components are not supported.
* 5. all the other Schema 1.1 constructs that are not listed here, are not supported.
* 6. the schemaAttribute axis does not work as it is expected in the specification.
* 7. in some situations, the SCPs that have been reduced by the elided-componet axis do not
* produce expected results
* 8. the fundamental facets are not supported (but the constraining facets are supported).
* @author Ishan Jayawardena
* @version $Id: SCDResolver.java 1023886 2010-10-18 16:23:20Z sandygao $
*/
public class SCDResolver {
private XSModel xsModel;
private List result;
private List currentComponents;
private SCDParser parser;
private static final short NO_FILTER = -1;
/*
* Please note that the spec has some flaws regarding some of the facts mentioned in it
* and therefore we could not interpret the correct meaning of them.
* But we assumed the intended behavior, i.e. the behavior the spec might have expected and
* implemented according to it.
* By setting the following variable's (i.e.IS_SPEC_COMPLIANT) value to false,
* we can test the behavior of the resolver as we assumed it,
* but it's not compliant with the spec. By setting its to true,
* we can test the resolver's behavior in the spec compliant manner
* (but under this behavior, the parser will not produce any output).
*/
private static final boolean IS_SPEC_COMPLIANT = false;
private static final short LIST_SIZE = 30;
/**
* Constructor
* @param xsModel the schema description schema component
*/
public SCDResolver(XSModel xsModel) {
this.xsModel = xsModel;
result = new ArrayList(LIST_SIZE);
currentComponents = new ArrayList(LIST_SIZE);
parser = new SCDParser();
}
/**
* Resolves a relative SCD against the schema description schema component (i.e. the XSModel).
* @param relativeSCD the input relative SCD string in the form of,
* [5] RelativeSchemaComponentDesignator ::= XmlnsPointerPart* XscdPointerPart
* e.g. xmlns(p=http://www.example.com/schema/po)xscd(/type::p:SKU/facet::pattern)
* @return a list of XML schema components that are designated by the SCD, otherwise and empty
* XSObjectList
*/
public XSObjectList resolve(String relativeSCD) throws SCDException {
List steps = parser.parseRelativeSCD(relativeSCD, false);
if (steps.size() == 1
&& ((Step) steps.get(0)).getAxisType() == Axis.NO_AXIS
&& ((Step) steps.get(0)).getNametest() == null
&& ((Step) steps.get(0)).getPredicate() == 0) {
// this is the schema step. i.e the SCP '/'
// return xsModel; this is the ideal case
// we return an exception instead since XSModel does not implement
// XSObject interface yet
throw new SCDException("Error in SCD: Schema step is not supported");
}
// apply the first step out from out side
// TODO: this is strange but this what the spec says and this can be
// changed in a better way if the spec changes
result.clear();
applyFirstStep((Step) steps.get(0));
return evaluate(steps, 1);
}
/**
* Resolves an SCP against the schema description schema component (i.e. the XSModel).
* @param scp the input SCP to designate the components.
* e.g. /type::p:SKU/facet::pattern
* @param nsContext namespace context details for the component names used in the SCP string
* @return a list of XML schema components that are designated by the SCP, otherwise and empty
* XSObjectList
*/
public XSObjectList resolve(String scp, NamespaceContext nsContext)
throws SCDException {
List steps = parser.parseSCP(scp, nsContext, false);
if (steps.size() == 1
&& ((Step) steps.get(0)).getAxisType() == Axis.NO_AXIS
&& ((Step) steps.get(0)).getNametest() == null
&& ((Step) steps.get(0)).getPredicate() == 0) {
// this is the schema step. i.e the SCP '/'
// return xsModel; this is the ideal case.
// we return an exception instead since XSModel does not implement
// XSObject interface yet
throw new SCDException("Error in SCD: Schema step is not supported");
}
// apply the first step out from out side
// TODO: this is strange but this what the spec says and this can be
// changed in a better way if the spec changes
result.clear();
applyFirstStep((Step) steps.get(0));
return evaluate(steps, 1);
}
/**
* Resolves an incomplete SCP against a given schema component
* @param incompleteSCP the incomplete SCP.
* To emphasize the incompleteness of such paths, the current component step syntax may be used
* (.) for the head step. For example, if the initial source component is a complex type,
* the following paths are equivalent and designate the element declaration with the QName
* my:section within the sequence model group of that type:
* model::sequence/schemaElement::my:section
* ./model::sequence/schemaElement::my:section
* @param nsContext namespace context details for the component names used in the
* incomplete SCP string
* @param currentComponent the initial source component
* @return the list of schema components that are designated by the incomplete SCP,
* otherwise an empty XSObjectList.
*/
public XSObjectList resolve(String incompleteSCP,
NamespaceContext nsContext, XSObject currentComponent)
throws SCDException {
List steps = parser.parseSCP(incompleteSCP, nsContext, true);
result.clear();
result.add(currentComponent);
return evaluate(steps, 0);
}
/**
* Resolves an incomplete SCD against a given schema component
* @param incompleteSCD the incomplete SCD string. which is in the form of
* [5] RelativeSchemaComponentDesignator ::= XmlnsPointerPart* XscdPointerPart
* but XscdPointerPart contains an incomplete SCP instead of a complete SCP.
* e.g. xmlns(p=http://www.example.com/schema/po)xscd(./type::p:SKU/facet::pattern)
* or xmlns(p=http://www.example.com/schema/po)xscd(type::p:SKU/facet::pattern)
* i.e. an incomplete SCP must not start with a '/'.
* @param currentComponent the initial source component
* @return the list of schema components that are designated by the incomplete SCP,
* otherwise an empty XSObjectList.
*/
public XSObjectList resolve(String incompleteSCD, XSObject currentComponent)
throws SCDException {
List steps = parser.parseRelativeSCD(incompleteSCD, true);
result.clear();
result.add(currentComponent);
return evaluate(steps, 0);
}
private XSObjectList evaluate(List steps, int startingStep) throws SCDException {
for (int i = startingStep, nSteps = steps.size(); i < nSteps; ++i) {
currentComponents.clear();
Step step = (Step)steps.get(i);
short axisType = step.getAxisType();
for (int j = 0, n = result.size(); j < n; ++j) {
currentComponents.add(result.get(j));
}
if (axisType != Axis.SPECIAL_COMPONENT) {
for (int j = 0, n = currentComponents.size(); j < n; ++j) {
addElidedComponents((XSObject)currentComponents.get(j));
}
}
result.clear();
applyStep(step);
if (axisType == Axis.SPECIAL_COMPONENT) {
step = (Step) steps.get(++i); // TODO: is this correct?
// copy result => currentComps
List tmp = currentComponents;
currentComponents = result;
result = tmp;
result.clear();
applyStep(step);
}
}
XSObjectListImpl resultComps = new XSObjectListImpl();
for (int i = 0, n = result.size(); i < n; ++i) {
resultComps.addXSObject((XSObject)result.get(i));
}
return resultComps;
}
private void addElidedComponents(XSObject sourceComponent) {
// these are the components returned from the term() accessor whose component-kind() is equal to xscd:model-group
// currentComponents.size() gets changed in each iteration
for (int i = currentComponents.size() - 1; i < currentComponents.size(); ++i) {
term((XSObject)currentComponents.get(i), XSConstants.MODEL_GROUP, SCDParser.WILDCARD, currentComponents);
}
switch (sourceComponent.getType()) {
case XSConstants.ELEMENT_DECLARATION: {
XSObject typeDef = ((XSElementDeclaration)sourceComponent).getTypeDefinition();
if (typeDef != null && !currentComponents.contains(typeDef)) {
currentComponents.add(typeDef);
}
}
break;
case XSConstants.ATTRIBUTE_DECLARATION: {
XSObject typeDef = ((XSAttributeDeclaration)sourceComponent).getTypeDefinition();
if (typeDef != null && !currentComponents.contains(typeDef)) {
currentComponents.add(typeDef);
}
}
break;
}
// TODO: we dont have type alternative for now.
} // getElidedComponents()
// apply the first step for the components of result
private void applyFirstStep(Step step) throws SCDException {
XSNamedMap map = null;
switch (step.getAxisType()) {
case Axis.ANNOTATION:
XSObjectList annotations = xsModel.getAnnotations();
for (int i = 0, n = annotations.size(); i < n; ++i) {
addComponent(annotations.item(i), step.getNametest(), result);
}
break;
case Axis.SCHEMA_ELEMENT:
map = xsModel.getComponents(XSConstants.ELEMENT_DECLARATION);
break;
case Axis.TYPE:
map = xsModel.getComponents(XSConstants.TYPE_DEFINITION);
break;
case Axis.SCHEMA_ATTRIBUTE:
map = xsModel.getComponents(XSConstants.ATTRIBUTE_DECLARATION);
break;
case Axis.ATTRIBUTE_GROUP:
map = xsModel.getComponents(XSConstants.ATTRIBUTE_GROUP);
break;
case Axis.GROUP:
map = xsModel.getComponents(XSConstants.MODEL_GROUP_DEFINITION); // TODO: correct?
break;
case Axis.NOTATION:
map = xsModel.getComponents(XSConstants.NOTATION_DECLARATION);
break;
case Axis.COMPONENT:
case Axis.SPECIAL_COMPONENT: {
currentComponents.clear();
addTopLevelComponents(step.getNametest());
int size = currentComponents.size();
for (int i = 0; i < currentComponents.size(); ++i) {
componentChildren((XSObject)currentComponents.get(i), NO_FILTER, SCDParser.WILDCARD, currentComponents);
}
int start = step.getAxisType() == Axis.SPECIAL_COMPONENT ? 0 : size;
for (int i = start; i < currentComponents.size(); ++i) {
addComponent((XSObject)currentComponents.get(i), step.getNametest(), result);
}
}
break;
default:
throw new SCDException("Error in SCD: Unsupported top level component type "
+ step.getAxisName());
}
if (map != null && !map.isEmpty()) {
for (int i = 0, n = map.size(); i < n; ++i) {
addComponent(map.item(i), step.getNametest(), result);
}
}
applyPredicate(step.getPredicate());
} // applyFirstStep()
// apply the step for the components of result.
// starting from the second step of the step list of a given SCP
private void applyStep(Step step) throws SCDException {
switch (step.getAxisType()) {
case Axis.SCHEMA_ELEMENT:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
term((XSObject)currentComponents.get(i), XSConstants.ELEMENT_DECLARATION, step.getNametest(), result);
}
break;
case Axis.SCHEMA_ATTRIBUTE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.ATTRIBUTE_DECLARATION, step.getNametest(), result);
}
break;
case Axis.TYPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentChildren((XSObject)currentComponents.get(i), XSConstants.TYPE_DEFINITION, step.getNametest(), result);
}
break;
case Axis.CURRENT_COMPONENT:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
result.add(currentComponents.get(i));
}
return;
case Axis.COMPONENT: // TODO: correct?
case Axis.SPECIAL_COMPONENT: {
int size = currentComponents.size();
for (int i = 0; i < currentComponents.size(); ++i) {
componentChildren((XSObject)currentComponents.get(i), NO_FILTER, SCDParser.WILDCARD, currentComponents);
}
int start = step.getAxisType() == Axis.SPECIAL_COMPONENT ? 0 : size;
for (int i = start; i < currentComponents.size(); ++i) {
addComponent((XSObject)currentComponents.get(i), step.getNametest(), result);
}
}
break;
case Axis.ATTRIBUTE_GROUP:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.ATTRIBUTE_GROUP, step.getNametest(), result);
}
break;
case Axis.GROUP:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.MODEL_GROUP_DEFINITION, step.getNametest(), result);
}
break;
case Axis.IDENTITY_CONSTRAINT:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.IDENTITY_CONSTRAINT, step.getNametest(), result);
}
break;
case Axis.ASSERTION:
// TODO: we do not support this yet. Schema 1.1
throw new SCDException("Error in SCD: Assertion axis is not supported");
//break;
case Axis.ALTERNATIVE:
// TODO: we do not support this yet. is Schema 1.1
throw new SCDException("Error in SCD: Alternative axis is not supported");
//break;
case Axis.NOTATION:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.NOTATION_DECLARATION, step.getNametest(), result);
}
break;
case Axis.MODEL:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
term((XSObject)currentComponents.get(i), XSConstants.MODEL_GROUP, step.getNametest(), result);
}
break;
case Axis.ANY_ATTRIBUTE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
XSObject comp = ((XSObject)currentComponents.get(i));
short type = comp.getType();
if (type == XSConstants.TYPE_DEFINITION) {
type = ((XSTypeDefinition)comp).getTypeCategory();
if (type == XSTypeDefinition.COMPLEX_TYPE) {
addComponent(((XSComplexTypeDefinition)comp).getAttributeWildcard(),
step.getNametest(), result);
}
} else if (type == XSConstants.ATTRIBUTE_GROUP) {
addComponent(((XSAttributeGroupDefinition)comp).getAttributeWildcard(),
step.getNametest(), result);
}
}
break;
case Axis.ANY:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
term((XSObject)currentComponents.get(i), XSConstants.WILDCARD, step.getNametest(), result);
}
break;
case Axis.FACET: // we are returning the part of thefacets. a limitation
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentLinked((XSObject)currentComponents.get(i), XSConstants.FACET, step.getNametest(), result);
}
break;
case Axis.SCOPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
componentScope((XSObject)currentComponents.get(i), result);
}
break;
case Axis.CONTEXT:
// TODO: we do not support this yet. is Schema 1.1
throw new SCDException("Error in SCD: Context axis is not supported");
//break;
case Axis.SUBSTITUTION_GROUP:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
XSObject comp = (XSObject)currentComponents.get(i);
if (comp.getType() == XSConstants.ELEMENT_DECLARATION) {
addComponent(((XSElementDeclaration)comp).getSubstitutionGroupAffiliation(),
step.getNametest(), result);
}
}
break;
case Axis.BASE_TYPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
if (((XSObject)currentComponents.get(i)).getType() == XSConstants.TYPE_DEFINITION) {
addComponent((((XSTypeDefinition)currentComponents.get(i))).getBaseType(),
step.getNametest(), result);
}
}
break;
case Axis.ITEM_TYPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
if (((XSObject)currentComponents.get(i)).getType() == XSConstants.TYPE_DEFINITION) {
XSObject comp = (XSObject)currentComponents.get(i);
if (((XSTypeDefinition)comp).getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
addComponent(((XSSimpleTypeDefinition)comp).getItemType(),
step.getNametest(), result);
}
}
}
break;
case Axis.MEMBER_TYPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
if (((XSObject)currentComponents.get(i)).getType() == XSConstants.TYPE_DEFINITION) {
XSObject comp = (XSObject)currentComponents.get(i);
if (((XSTypeDefinition)comp).getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
XSObjectList memberTypes = ((XSSimpleTypeDefinition)comp).getMemberTypes();
for (int j = 0, nt = memberTypes.size(); j < nt; ++j) {
addComponent((XSObject)memberTypes.get(j), step.getNametest(), result);
}
}
}
}
break;
case Axis.PRIMITIVE_TYPE:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
if (((XSObject)currentComponents.get(i)).getType() == XSConstants.TYPE_DEFINITION) {
XSObject comp = (XSObject)currentComponents.get(i);
if (((XSTypeDefinition)comp).getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
addComponent(((XSSimpleTypeDefinition)comp).getPrimitiveType(),
step.getNametest(), result);
}
}
}
break;
case Axis.KEY:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
if (((XSObject)currentComponents.get(i)).getType() == XSConstants.IDENTITY_CONSTRAINT) {
addComponent(((XSIDCDefinition)currentComponents.get(i)).getRefKey(),
step.getNametest(), result);
}
}
break;
case Axis.ANNOTATION:
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
annotations((XSObject)currentComponents.get(i), result);
}
break;
case Axis.ATTRIBUTE_USE: {
XSObjectList attribUses = null;
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
XSObject comp = (XSObject)currentComponents.get(i);
if (comp.getType() == XSConstants.TYPE_DEFINITION) {
if (((XSTypeDefinition)comp).getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
attribUses = ((XSComplexTypeDefinition)comp).getAttributeUses();
}
} else if (comp.getType() == XSConstants.ATTRIBUTE_GROUP) {
attribUses = ((XSAttributeGroupDefinition)comp).getAttributeUses();
}
if (attribUses != null) {
for (int j = 0, na = attribUses.size(); j < na; ++j) {
addComponent((XSObject)attribUses.get(j),
step.getNametest(), result);
}
}
}
}
break;
case Axis.PARTICLE: {
for (int i = 0, n = currentComponents.size(); i < n; ++i) {
XSObject comp = (XSObject)currentComponents.get(i);
if (comp.getType() == XSConstants.MODEL_GROUP) {
XSObjectList particles = ((XSModelGroup)comp).getParticles();
for (int j = 0, np = particles.size(); j < np; ++j) {
addComponent((XSObject) particles.get(j),
step.getNametest(), result);
}
}
}
}
break;
case Axis.EXTENSION_AXIS:
throw new SCDException("Error in SCD: Extension axis is not supported");
//break;
default:
throw new SCDException("Error in SCD: Unsupported axis type " + step.getAxisName());
}
applyPredicate(step.getPredicate());
} // applyStep()
private void addTopLevelComponents(QName nameTest) {
// get the annotations() components
XSObjectList annotations = xsModel.getAnnotations();
for (int i = 0, n = annotations.size(); i < n; ++i) {
addComponent(annotations.item(i), nameTest, result);
}
final short[] SCHEMA_COMPONENTS = new short[] {
XSConstants.ELEMENT_DECLARATION, XSConstants.TYPE_DEFINITION, XSConstants.ATTRIBUTE_DECLARATION,
XSConstants.ATTRIBUTE_GROUP, XSConstants.MODEL_GROUP_DEFINITION, XSConstants.NOTATION_DECLARATION,
// XSConstants.IDENTITY_CONSTRAINT // TODO: return empty. we don't support IDC at top level
};
XSNamedMap map;
for (int i = 0; i < SCHEMA_COMPONENTS.length; ++i) {
map = xsModel.getComponents(SCHEMA_COMPONENTS[i]);
if (!map.isEmpty()) {
for (int j = 0, n =map.size(); j < n; ++j) {
addComponent(map.item(i), nameTest, result);
}
}
}
} // getTopLevelComponents()
private void applyPredicate(int predicate) throws SCDException {
if (predicate == 0) {
return;
} else if (predicate > 0 && predicate <= result.size()) {
XSObject component = (XSObject)result.get(predicate - 1);
result.clear();
result.add(component);
} else {
throw new SCDException("Error in SCD: Invalid predicate value ("
+ predicate + ") detected");
}
} // processPredicate()
// Described in section 4.5.6; term Accessor
private void term(XSObject sourceComponent, short filter, QName nameTest, List outputComponents) {
switch (sourceComponent.getType()) {
case XSConstants.MODEL_GROUP_DEFINITION:
if (NO_FILTER == filter || XSConstants.MODEL_GROUP == filter) {
addComponent(((XSModelGroupDefinition) sourceComponent).getModelGroup()
, nameTest, outputComponents);
}
break;
case XSConstants.TYPE_DEFINITION:
if (((XSTypeDefinition) sourceComponent).getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
XSParticle particle = ((XSComplexTypeDefinition) sourceComponent).getParticle();
if (particle != null) {
XSTerm term = particle.getTerm();
if (NO_FILTER == filter || (term != null && term.getType() == filter)) {
addComponent(term, nameTest, outputComponents);
}
}
}
break;
case XSConstants.PARTICLE: {
XSTerm term = ((XSParticle) sourceComponent).getTerm();
if (NO_FILTER == filter || (term != null && term.getType() == filter)) {
addComponent(term, nameTest, outputComponents);
}
}
break;
case XSConstants.MODEL_GROUP:
if (IS_SPEC_COMPLIANT == false) {
XSObjectList particles = ((XSModelGroup) sourceComponent).getParticles();
for (int i = 0, n = particles.size(); i < n; ++i) {
XSObject term = ((XSParticle) particles.item(i)).getTerm();
if (NO_FILTER == filter
|| (term != null && term.getType() == filter)) {
addComponent(term, nameTest, outputComponents); // nameTest
}
}
}
break;
}
} // term()
// Described in section 4.5.3; component-variety Accessor
private String componentVariety(XSObject component) {
// TODO: we only care about these three types of components
short type = component.getType();
if (type == XSConstants.MODEL_GROUP) {
switch (((XSModelGroup)component).getCompositor()) {
case XSModelGroup.COMPOSITOR_SEQUENCE:
return "sequence";
case XSModelGroup.COMPOSITOR_ALL:
return "all";
case XSModelGroup.COMPOSITOR_CHOICE:
return "choice";
}
} else if (type == XSConstants.FACET
|| type == XSConstants.MULTIVALUE_FACET) {
short kind = NO_FILTER;
if (type == XSConstants.FACET) {
kind = ((XSFacet)component).getFacetKind();
} else {
kind = ((XSMultiValueFacet)component).getFacetKind();
}
switch (kind) { // TODO: which ones are the most frequently used ones?
case XSSimpleTypeDefinition.FACET_ENUMERATION:
return "enumeration";
case XSSimpleTypeDefinition.FACET_FRACTIONDIGITS:
return "fractionDigits";
case XSSimpleTypeDefinition.FACET_LENGTH:
return "length";
case XSSimpleTypeDefinition.FACET_MAXEXCLUSIVE:
return "maxExclusive";
case XSSimpleTypeDefinition.FACET_MAXINCLUSIVE:
return "maxInclusive";
case XSSimpleTypeDefinition.FACET_MAXLENGTH:
return "maxLength";
case XSSimpleTypeDefinition.FACET_MINEXCLUSIVE:
return "minExclusive";
case XSSimpleTypeDefinition.FACET_MININCLUSIVE:
return "minInclusive";
case XSSimpleTypeDefinition.FACET_MINLENGTH:
return "minLength";
case XSSimpleTypeDefinition.FACET_PATTERN:
return "pattern";
case XSSimpleTypeDefinition.FACET_TOTALDIGITS:
return "totalDigits";
case XSSimpleTypeDefinition.FACET_WHITESPACE:
return "whiteSpace";
}
}
return null;
} // componentVariety()
// Described in section 4.5.5; component-linked Accessor
private void componentLinked(XSObject sourceComponent, short filter,
QName nameTest, List targetComponents) throws SCDException {
switch (sourceComponent.getType()) {
case XSConstants.ATTRIBUTE_DECLARATION: {
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) { // TODO: correct? check with the caller
if (((XSAttributeDeclaration)sourceComponent).getScope() == XSConstants.SCOPE_LOCAL) {
addComponent(((XSAttributeDeclaration)sourceComponent).getEnclosingCTDefinition(),
nameTest, targetComponents);
}
}
}
break;
case XSConstants.ELEMENT_DECLARATION: {
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) { // TODO: correct? check again
if (((XSElementDeclaration)sourceComponent).getScope() == XSConstants.SCOPE_LOCAL) {
addComponent(((XSElementDeclaration)sourceComponent).getEnclosingCTDefinition(),
nameTest, targetComponents);
}
}
if (NO_FILTER == filter || XSConstants.IDENTITY_CONSTRAINT == filter) {
XSNamedMap idcs = ((XSElementDeclaration)sourceComponent).getIdentityConstraints();
for (int i = 0, n = idcs.size(); i < n; ++i) {
addComponent(idcs.item(i),
nameTest, targetComponents);
}
}
if (NO_FILTER == filter || XSConstants.ELEMENT_DECLARATION == filter) {
addComponent(((XSElementDeclaration)sourceComponent).getSubstitutionGroupAffiliation(),
nameTest, targetComponents);
}
}
break;
case XSConstants.TYPE_DEFINITION:
if (((XSTypeDefinition)sourceComponent).getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) {
addComponent(((XSSimpleTypeDefinition)sourceComponent).getBaseType(),
nameTest, targetComponents);
addComponent(((XSSimpleTypeDefinition)sourceComponent).getPrimitiveType(),
nameTest, targetComponents);
addComponent(((XSSimpleTypeDefinition)sourceComponent).getItemType(),
nameTest, targetComponents);
XSObjectList list = ((XSSimpleTypeDefinition)sourceComponent).getMemberTypes();
for (int i = 0, n = list.size(); i < n; ++i) {
addComponent(list.item(i), nameTest, targetComponents);
}
}
// TODO: {context} not supported since it's defined in Schema 1.1
} else { // a complex type
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) {
addComponent(((XSComplexTypeDefinition)sourceComponent).getBaseType(),
nameTest, targetComponents);
}
if (NO_FILTER == filter || XSConstants.WILDCARD == filter) {
addComponent(((XSComplexTypeDefinition)sourceComponent).getAttributeWildcard(),
nameTest, targetComponents);
}
// TODO: how to get these other components?
// {context} this is Schema 1.1 stuff
// {assertions} this is Schema 1.1 stuff
// {wildcard} of {open content} of {content type} this is also schema 1.1 stuff
}
break;
case XSConstants.ATTRIBUTE_USE:
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.ATTRIBUTE_GROUP:
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.WILDCARD == filter) {
addComponent(((XSAttributeGroupDefinition)sourceComponent).getAttributeWildcard(),
nameTest, targetComponents);
}
break;
case XSConstants.MODEL_GROUP_DEFINITION:
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.MODEL_GROUP:
componentChildren(sourceComponent, filter, nameTest, targetComponents);
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.PARTICLE:
componentChildren(sourceComponent, filter, nameTest, targetComponents);
break;
case XSConstants.WILDCARD:
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.IDENTITY_CONSTRAINT:
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
if (NO_FILTER == filter || XSConstants.IDENTITY_CONSTRAINT == filter) {
addComponent(((XSIDCDefinition)sourceComponent).getRefKey(),
nameTest, targetComponents);
}
break; //
case XSConstants.NOTATION_DECLARATION:
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.FACET:
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
case XSConstants.MULTIVALUE_FACET:
if (NO_FILTER == filter || XSConstants.ANNOTATION == filter) {
annotations(sourceComponent, targetComponents);
}
break;
default: // this includes the case XSConstants.ANNOTATION
// TODO: we have to add support for, type alternative, assertion, schema, constraining facet and fundamental facet
break;
}
} // componentLinked()
// Described in section 4.5.4; component-children Accessor
private void componentChildren(XSObject sourceComponent, short filter, QName nameTest, List targetComponents) {
switch (sourceComponent.getType()) {
case XSConstants.ATTRIBUTE_DECLARATION: {
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) {
addComponent(((XSAttributeDeclaration)sourceComponent).getTypeDefinition(),
nameTest, targetComponents);
}
}
break;
case XSConstants.ELEMENT_DECLARATION: {
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) {
addComponent(((XSElementDeclaration)sourceComponent).getTypeDefinition(),
nameTest, targetComponents);
}
}
break;
case XSConstants.TYPE_DEFINITION:
if (((XSTypeDefinition)sourceComponent).getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
if (NO_FILTER == filter || XSConstants.FACET == filter) {
XSObjectList facets = ((XSSimpleTypeDefinition)sourceComponent).getFacets();
for (int i = 0, n = facets.size(); i < n; ++i) {
addComponent(facets.item(i), nameTest, targetComponents);
}
facets = ((XSSimpleTypeDefinition)sourceComponent).getMultiValueFacets();
for (int i = 0, n = facets.size(); i < n; ++i) {
addComponent(facets.item(i), nameTest, targetComponents);
}
}
} else { // complex type
XSComplexTypeDefinition cmplxType = ((XSComplexTypeDefinition)sourceComponent);
if (NO_FILTER == filter || XSConstants.ATTRIBUTE_USE == filter) {
XSObjectList attributeUses = cmplxType.getAttributeUses();
for (int i = 0, n = attributeUses.size(); i < n; ++i) {
addComponent(attributeUses.item(i), nameTest, targetComponents);
}
}
int componentVariety = cmplxType.getContentType();
switch (componentVariety) {
case XSComplexTypeDefinition.CONTENTTYPE_EMPTY:
break;
case XSComplexTypeDefinition.CONTENTTYPE_SIMPLE:
if (NO_FILTER == filter || XSConstants.TYPE_DEFINITION == filter) {
addComponent(cmplxType.getSimpleType(), nameTest, targetComponents);
}
break;
default:
term(cmplxType, filter, nameTest, targetComponents);
break;
}
}
break;
case XSConstants.ATTRIBUTE_USE:
if (NO_FILTER == filter || XSConstants.ATTRIBUTE_DECLARATION == filter) {
addComponent(((XSAttributeUse)sourceComponent).getAttrDeclaration(),
nameTest, targetComponents);
}
break;
case XSConstants.ATTRIBUTE_GROUP:
if (NO_FILTER == filter || XSConstants.ATTRIBUTE_DECLARATION == filter) {
XSObjectList attrbuses = ((XSAttributeGroupDefinition) sourceComponent).getAttributeUses();
for (int i = 0, n = attrbuses.size(); i < n; ++i) {
addComponent(((XSAttributeUse) attrbuses.item(i)).getAttrDeclaration(),
nameTest, targetComponents);
}
}
break;
case XSConstants.MODEL_GROUP_DEFINITION:
if (NO_FILTER == filter || XSConstants.MODEL_GROUP == filter) {
addComponent(((XSModelGroupDefinition)sourceComponent).getModelGroup(),
nameTest, targetComponents);
}
break;
case XSConstants.MODEL_GROUP: {
XSObjectList particles = ((XSModelGroup)sourceComponent).getParticles();
for (int i = 0, n = particles.size(); i < n; ++i) {
XSTerm term = ((XSParticle)particles.item(i)).getTerm();
if (NO_FILTER == filter || term.getType() == filter) {
addComponent(term, nameTest, targetComponents);
}
}
}
break;
case XSConstants.PARTICLE: {
XSTerm term = ((XSParticle)sourceComponent).getTerm();
if (NO_FILTER == filter || term.getType() == filter) {
addComponent(term, nameTest, targetComponents);
}
}
break;
default:
break; // TODO: cases Schema and Type Alternative yet to be implemented
}
} // componentChildren()
// Described in section 4.5.9; annotations Accessor
private void annotations(XSObject sourceComponent, List targetComponents)
throws SCDException {
XSObjectList annotations;
switch (sourceComponent.getType()) {
case XSConstants.ATTRIBUTE_DECLARATION:
annotations = ((XSAttributeDeclaration)sourceComponent).getAnnotations();
break;
case XSConstants.ELEMENT_DECLARATION:
annotations = ((XSElementDeclaration)sourceComponent).getAnnotations();
break;
case XSConstants.TYPE_DEFINITION:
if (((XSTypeDefinition)sourceComponent).getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
annotations = ((XSComplexTypeDefinition)sourceComponent).getAnnotations();
} else { // simple type def
annotations = ((XSSimpleTypeDefinition)sourceComponent).getAnnotations();
}
break;
case XSConstants.ATTRIBUTE_USE:
annotations = ((XSAttributeUse)sourceComponent).getAnnotations();
break;
case XSConstants.ATTRIBUTE_GROUP:
annotations = ((XSAttributeGroupDefinition)sourceComponent).getAnnotations();
break;
case XSConstants.MODEL_GROUP:
annotations = ((XSModelGroup)sourceComponent).getAnnotations();
break;
case XSConstants.MODEL_GROUP_DEFINITION:
annotations = ((XSModelGroupDefinition)sourceComponent).getAnnotations();
break;
case XSConstants.PARTICLE:
annotations = ((XSParticle)sourceComponent).getAnnotations();
break;
case XSConstants.WILDCARD:
annotations = ((XSWildcard)sourceComponent).getAnnotations();
break;
case XSConstants.IDENTITY_CONSTRAINT:
annotations = ((XSIDCDefinition)sourceComponent).getAnnotations();
break;
case XSConstants.NOTATION_DECLARATION:
annotations = ((XSNotationDeclaration)sourceComponent).getAnnotations();
break;
case XSConstants.FACET:
annotations = ((XSFacet)sourceComponent).getAnnotations();
break;
case XSConstants.MULTIVALUE_FACET:
annotations = ((XSMultiValueFacet)sourceComponent).getAnnotations();
break;
default: // TODO: no type alternative, assertion, schema, fundamental facet
throw new SCDException(
"Error in SCD: annotations accessor is not supported for the component type "
+ sourceComponent.getType());
}
if (annotations != null) {
XSObject annotation;
for (int i = 0, n = annotations.size(); i < n; ++i) {
annotation = annotations.item(i);
if (annotation != null && !targetComponents.contains(annotation)) {
targetComponents.add(annotation);
}
}
}
} // annotations()
// Described in section 4.5.7; component-scope Accessor
private void componentScope(XSObject sourceComponent, List targetComponents) {
switch (sourceComponent.getType()) {
case XSConstants.ATTRIBUTE_DECLARATION:
if (((XSAttributeDeclaration)sourceComponent).getScope() != XSConstants.SCOPE_GLOBAL) {
XSObject type = ((XSAttributeDeclaration)sourceComponent).getEnclosingCTDefinition();
if (type != null && !targetComponents.contains(type)) {
targetComponents.add(type);
}
}
break;
case XSConstants.ELEMENT_DECLARATION:
if (((XSElementDeclaration)sourceComponent).getScope() != XSConstants.SCOPE_GLOBAL) {
XSObject type = ((XSElementDeclaration)sourceComponent).getEnclosingCTDefinition();
if (type != null && !targetComponents.contains(type)) {
targetComponents.add(type);
}
}
break;
}
} // componentScope()
private void addComponent(XSObject component, QName nameTest,
List resultComponents) {
if (component == null || resultComponents.contains(component)) {
return;
}
if (nameTest == SCDParser.ZERO) { // only for type defs without names
if (component.getType() == XSConstants.TYPE_DEFINITION
&& component.getName() == null) {
resultComponents.add(component);
}
} else if (nameTest == SCDParser.WILDCARD) {
resultComponents.add(component);
} else {
String localPart = component.getName();
String uri = component.getNamespace();
if (uri != null && localPart != null) { // .../schemaElement::p:item
if (uri.equals(nameTest.uri)
&& localPart.equals(nameTest.localpart)) {
resultComponents.add(component);
}
} else if (uri == null && localPart != null) { // .../schemaElement::item
if (nameTest.uri == null
&& localPart.equals(nameTest.localpart)) {
resultComponents.add(component);
}
} else if (uri == null && localPart == null) { // .../model::sequence
String variety = null;
short type = component.getType();
if (type == XSConstants.MODEL_GROUP
|| type == XSConstants.FACET
|| type == XSConstants.MULTIVALUE_FACET) {
variety = componentVariety(component);
if (nameTest.uri == null && nameTest.localpart.equals(variety)) {
resultComponents.add(component);
}
}
}
}
}
public String toString() {
return "(current components="+currentComponents.toString()+", result="+result.toString()+")";
}
} // SCDResolver
