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This module contains the Metro runtime code.
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/*
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 *
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 * The contents of this file are subject to the terms of either the GNU
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
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 * or LICENSE.txt.  See the License for the specific
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 *
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 * file and include the License file at LICENSE.txt.
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 * file that accompanied this code.
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package com.sun.xml.bind.v2.model.impl;

import java.util.LinkedHashSet;
import java.util.Set;

import javax.xml.bind.annotation.XmlElementDecl;

import com.sun.xml.bind.v2.model.annotation.Locatable;
import com.sun.xml.bind.v2.model.annotation.MethodLocatable;
import com.sun.xml.bind.v2.model.core.RegistryInfo;
import com.sun.xml.bind.v2.model.core.TypeInfo;
import com.sun.xml.bind.v2.model.nav.Navigator;
import com.sun.xml.bind.v2.runtime.IllegalAnnotationException;
import com.sun.xml.bind.v2.runtime.Location;
import com.sun.xml.bind.v2.ContextFactory;

/**
 * Implementation of {@link RegistryInfo}.
 *
 * @author Kohsuke Kawaguchi
 */
// experimenting with shorter type parameters for  quadruple.
// the idea is that they show so often that you'd understand the meaning
// without relying on the whole name.
final class RegistryInfoImpl implements Locatable, RegistryInfo {

    final C registryClass;
    private final Locatable upstream;
    private final Navigator nav;

    /**
     * Types that are referenced from this registry.
     */
    private final Set> references = new LinkedHashSet>();

    /**
     * Picks up references in this registry to other types.
     */
    RegistryInfoImpl(ModelBuilder builder, Locatable upstream, C registryClass) {
        this.nav = builder.nav;
        this.registryClass = registryClass;
        this.upstream = upstream;
        builder.registries.put(getPackageName(),this);

        if(nav.getDeclaredField(registryClass,ContextFactory.USE_JAXB_PROPERTIES)!=null) {
            // the user is trying to use ObjectFactory that we generate for interfaces,
            // that means he's missing jaxb.properties
            builder.reportError(new IllegalAnnotationException(
                Messages.MISSING_JAXB_PROPERTIES.format(getPackageName()),
                this
            ));
            // looking at members will only add more errors, so just abort now
            return;
        }

        for( M m : nav.getDeclaredMethods(registryClass) ) {
            XmlElementDecl em = builder.reader.getMethodAnnotation(
                XmlElementDecl.class, m, this );

            if(em==null) {
                if(nav.getMethodName(m).startsWith("create")) {
                    // this is a factory method. visit this class
                    references.add(
                        builder.getTypeInfo(nav.getReturnType(m),
                            new MethodLocatable(this,m,nav)));
                }

                continue;
            }

            ElementInfoImpl ei;
            try {
                ei = builder.createElementInfo(this,m);
            } catch (IllegalAnnotationException e) {
                builder.reportError(e);
                continue;   // recover by ignoring this element
            }

            // register this mapping
            // TODO: any chance this could cause a stack overflow (by recursively visiting classes)?
            builder.typeInfoSet.add(ei,builder);
            references.add(ei);
        }
    }

    public Locatable getUpstream() {
        return upstream;
    }

    public Location getLocation() {
        return nav.getClassLocation(registryClass);
    }

    public Set> getReferences() {
        return references;
    }

    /**
     * Gets the name of the package that this registry governs.
     */
    public String getPackageName() {
        return nav.getPackageName(registryClass);
    }

    public C getClazz() {
        return registryClass;
    }
}