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package com.sun.tools.xjc.reader.xmlschema;
import java.text.ParseException;
import java.util.Collection;
import java.util.Collections;
import com.sun.codemodel.JJavaName;
import com.sun.tools.xjc.model.CClassInfo;
import com.sun.tools.xjc.model.CPropertyInfo;
import com.sun.tools.xjc.reader.Ring;
import com.sun.tools.xjc.reader.xmlschema.bindinfo.BIDeclaration;
import com.sun.tools.xjc.reader.xmlschema.bindinfo.BIProperty;
import com.sun.xml.xsom.XSElementDecl;
import com.sun.xml.xsom.XSModelGroup;
import com.sun.xml.xsom.XSModelGroupDecl;
import com.sun.xml.xsom.XSParticle;
import com.sun.xml.xsom.XSTerm;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.visitor.XSTermVisitor;
/**
* Binds the content models of {@link XSParticle} as properties of the class that's being built.
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public abstract class ParticleBinder {
protected final BGMBuilder builder = Ring.get(BGMBuilder.class);
protected ParticleBinder() {
// make sure that this object is available as ParticleBinder, not as their actual implementation classes
Ring.add(ParticleBinder.class,this);
}
/**
* Builds the {@link CPropertyInfo}s from the given particle
* (and its descendants), and set them to the class returned by
* {@link ClassSelector#getCurrentBean()}.
*/
public final void build( XSParticle p ) {
build(p, Collections.emptySet());
}
/**
* The version of the build method that forces a specified set of particles
* to become a property.
*/
public abstract void build( XSParticle p, Collection forcedProps );
/**
* Similar to the build method but this method only checks if
* the BGM that will be built by the build method will
* do the fallback (map all the properties into one list) or not.
*
* @return
* false if the fallback will not happen.
*/
public abstract boolean checkFallback( XSParticle p );
//
//
// convenient utility methods
//
//
protected final CClassInfo getCurrentBean() {
return getClassSelector().getCurrentBean();
}
/**
* Gets the BIProperty object that applies to the given particle.
*/
protected final BIProperty getLocalPropCustomization( XSParticle p ) {
return getLocalCustomization(p,BIProperty.class);
}
protected final T getLocalCustomization( XSParticle p, Class type ) {
// check the property customization of this component first
T cust = builder.getBindInfo(p).get(type);
if(cust!=null) return cust;
// if not, the term might have one.
cust = builder.getBindInfo(p.getTerm()).get(type);
if(cust!=null) return cust;
return null;
}
/**
* Computes the label of a given particle.
* Usually, the getLabel method should be used instead.
*/
protected final String computeLabel( XSParticle p ) {
// if the particle carries a customization, use that value.
// since we are binding content models, it's always non-constant properties.
BIProperty cust = getLocalPropCustomization(p);
if(cust!=null && cust.getPropertyName(false)!=null)
return cust.getPropertyName(false);
// no explicit property name is given. Compute one.
XSTerm t = p.getTerm();
// // first, check if a term is going to be a class, if so, use that name.
// ClassItem ci = owner.selector.select(t);
// if(ci!=null) {
// return makeJavaName(ci.getTypeAsDefined().name());
// }
// if it fails, compute the default name according to the spec.
if(t.isElementDecl())
// for element, take the element name.
return makeJavaName(p,t.asElementDecl().getName());
if(t.isModelGroupDecl())
// for named model groups, take that name
return makeJavaName(p,t.asModelGroupDecl().getName());
if(t.isWildcard())
// the spec says it will map to "any" by default.
return makeJavaName(p,"Any");
if(t.isModelGroup()) {
try {
return getSpecDefaultName(t.asModelGroup(),p.isRepeated());
} catch( ParseException e ) {
// unable to generate a name.
getErrorReporter().error(t.getLocator(),
Messages.ERR_UNABLE_TO_GENERATE_NAME_FROM_MODELGROUP);
return "undefined"; // recover from error by assuming something
}
}
// there are only four types of XSTerm.
throw new AssertionError();
}
/** Converts an XML name to the corresponding Java name. */
protected final String makeJavaName( boolean isRepeated, String xmlName ) {
String name = builder.getNameConverter().toPropertyName(xmlName);
if(builder.getGlobalBinding().isSimpleMode() && isRepeated )
name = JJavaName.getPluralForm(name);
return name;
}
protected final String makeJavaName( XSParticle p, String xmlName ) {
return makeJavaName(p.isRepeated(),xmlName);
}
/**
* Computes a name from unnamed model group by following the spec.
*
* Taking first three elements and combine them.
*
* @param repeated
* if the said model group is repeated more than once
*
* @exception ParseException
* If the method cannot generate a name. For example, when
* a model group doesn't contain any element reference/declaration
* at all.
*/
protected final String getSpecDefaultName( XSModelGroup mg, final boolean repeated ) throws ParseException {
final StringBuilder name = new StringBuilder();
mg.visit(new XSTermVisitor() {
/**
* Count the number of tokens we combined.
* We will concat up to 3.
*/
private int count=0;
/**
* Is the current particple/term repeated?
*/
private boolean rep = repeated;
public void wildcard(XSWildcard wc) {
append("any");
}
public void modelGroupDecl(XSModelGroupDecl mgd) {
modelGroup(mgd.getModelGroup());
}
public void modelGroup(XSModelGroup mg) {
String operator;
if(mg.getCompositor()==XSModelGroup.CHOICE) operator = "Or";
else operator = "And";
int size = mg.getSize();
for( int i=0; i
