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/*
 * Copyright (c) 1997, 2020 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 org.glassfish.jaxb.runtime.v2.model.impl;

import com.sun.istack.Nullable;
import org.glassfish.jaxb.core.WhiteSpaceProcessor;
import org.glassfish.jaxb.runtime.api.AccessorException;
import org.glassfish.jaxb.core.v2.WellKnownNamespace;
import org.glassfish.jaxb.core.v2.model.annotation.Locatable;
import org.glassfish.jaxb.runtime.v2.model.annotation.RuntimeAnnotationReader;
import org.glassfish.jaxb.core.v2.model.core.ID;
import org.glassfish.jaxb.runtime.v2.model.runtime.RuntimeNonElement;
import org.glassfish.jaxb.runtime.v2.model.runtime.RuntimeNonElementRef;
import org.glassfish.jaxb.runtime.v2.model.runtime.RuntimePropertyInfo;
import org.glassfish.jaxb.runtime.v2.model.runtime.RuntimeTypeInfoSet;
import org.glassfish.jaxb.core.v2.runtime.IllegalAnnotationException;
import org.glassfish.jaxb.runtime.v2.runtime.*;
import org.glassfish.jaxb.runtime.v2.runtime.unmarshaller.UnmarshallingContext;
import jakarta.activation.MimeType;
import org.xml.sax.SAXException;

import javax.xml.namespace.QName;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Map;

/**
 * {@link ModelBuilder} that works at the run-time by using
 * the {@code java.lang.reflect} package.
 *
 * 
 * This extends {@link ModelBuilder} by providing more functionalities such
 * as accessing the fields and classes.
 *
 * @author Kohsuke Kawaguchi ([email protected])
 */
public class RuntimeModelBuilder extends ModelBuilder {
    /**
     * The {@link JAXBContextImpl} for which the model is built.
     * Null when created for reflection.
     */
    public final @Nullable
    JAXBContextImpl context;

    public RuntimeModelBuilder(JAXBContextImpl context, RuntimeAnnotationReader annotationReader, Map subclassReplacements, String defaultNamespaceRemap) {
        super(annotationReader, Utils.REFLECTION_NAVIGATOR, subclassReplacements, defaultNamespaceRemap);
        this.context = context;
    }

    @Override
    public RuntimeNonElement getClassInfo(Class clazz, Locatable upstream ) {
        return (RuntimeNonElement)super.getClassInfo(clazz,upstream);
    }

    @Override
    public RuntimeNonElement getClassInfo( Class clazz, boolean searchForSuperClass, Locatable upstream ) {
        return (RuntimeNonElement)super.getClassInfo(clazz,searchForSuperClass,upstream);
    }

    @Override
    protected RuntimeEnumLeafInfoImpl createEnumLeafInfo(Class clazz, Locatable upstream) {
        return new RuntimeEnumLeafInfoImpl(this,upstream,clazz);
    }

    @Override
    protected RuntimeClassInfoImpl createClassInfo( Class clazz, Locatable upstream ) {
        return new RuntimeClassInfoImpl(this,upstream,clazz);
    }

    @Override
    public RuntimeElementInfoImpl createElementInfo(RegistryInfoImpl registryInfo, Method method) throws IllegalAnnotationException {
        return new RuntimeElementInfoImpl(this,registryInfo, method);
    }

    @Override
    public RuntimeArrayInfoImpl createArrayInfo(Locatable upstream, Type arrayType) {
        return new RuntimeArrayInfoImpl(this, upstream, (Class)arrayType);
    }

    @Override
    protected RuntimeTypeInfoSetImpl createTypeInfoSet() {
        return new RuntimeTypeInfoSetImpl(reader);
    }

    @Override
    public RuntimeTypeInfoSet link() {
        return (RuntimeTypeInfoSet)super.link();
    }

    /**
     * Creates a {@link Transducer} given a reference.
     *
     * Used to implement {@link RuntimeNonElementRef#getTransducer()}.
     * Shouldn't be called from anywhere else.
     *
     * TODO: this is not the proper place for this class to be in.
     */
    public static Transducer createTransducer(RuntimeNonElementRef ref) {
        Transducer t = ref.getTarget().getTransducer();
        RuntimePropertyInfo src = ref.getSource();
        ID id = src.id();

        if(id==ID.IDREF)
            return RuntimeBuiltinLeafInfoImpl.STRING;

        if(id==ID.ID)
            t = new IDTransducerImpl(t);

        MimeType emt = src.getExpectedMimeType();
        if(emt!=null)
            t = new MimeTypedTransducer(t,emt);

        if(src.inlineBinaryData())
            t = new InlineBinaryTransducer(t);

        if(src.getSchemaType()!=null) {
            if (src.getSchemaType().equals(createXSSimpleType())) {
                return RuntimeBuiltinLeafInfoImpl.STRING;
            }
            t = new SchemaTypeTransducer(t,src.getSchemaType());
        }
        
        return t;
    }

    private static QName createXSSimpleType() {
        return new QName(WellKnownNamespace.XML_SCHEMA,"anySimpleType");
    }

    /**
     * Transducer implementation for ID.
     *
     * This transducer wraps another {@link Transducer} and adds
     * handling for ID.
     */
    private static final class IDTransducerImpl extends FilterTransducer {
        public IDTransducerImpl(Transducer core) {
            super(core);
        }

        @Override
        public ValueT parse(CharSequence lexical) throws AccessorException, SAXException {
            String value = WhiteSpaceProcessor.trim(lexical).toString();
            UnmarshallingContext.getInstance().addToIdTable(value);
            return core.parse(value);
        }
    }
}