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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package com.sun.xml.internal.bind.v2.model.impl;

import java.io.IOException;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.lang.reflect.Type;

import java.util.EnumMap;

import java.util.HashMap;

import java.util.Map;

import javax.xml.namespace.QName;

import javax.xml.stream.XMLStreamException;

import com.sun.xml.internal.bind.api.AccessorException;

import com.sun.xml.internal.bind.v2.model.annotation.FieldLocatable;

import com.sun.xml.internal.bind.v2.model.annotation.Locatable;

import com.sun.xml.internal.bind.v2.model.runtime.RuntimeEnumLeafInfo;

import com.sun.xml.internal.bind.v2.model.runtime.RuntimeNonElement;

import com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationException;

import com.sun.xml.internal.bind.v2.runtime.Name;

import com.sun.xml.internal.bind.v2.runtime.Transducer;

import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;

import org.xml.sax.SAXException;

/**

 * @author Kohsuke Kawaguchi

 */

final class RuntimeEnumLeafInfoImpl<T extends Enum<T>,B> extends EnumLeafInfoImpl<Type,Class,Field,Method>

    implements RuntimeEnumLeafInfo, Transducer<T> {

    public Transducer<T> getTransducer() {

        return this;

    }

    /**

     * {@link Transducer} that knows how to convert a lexical value

     * into the Java value that we can handle.

     */

    private final Transducer<B> baseXducer;

    private final Map<B,T> parseMap = new HashMap<B,T>();

    private final Map<T,B> printMap;

    RuntimeEnumLeafInfoImpl(RuntimeModelBuilder builder, Locatable upstream, Class<T> enumType) {

        super(builder,upstream,enumType,enumType);

        this.printMap = new EnumMap<T,B>(enumType);

        baseXducer = ((RuntimeNonElement)baseType).getTransducer();

    }

    @Override

    public RuntimeEnumConstantImpl createEnumConstant(String name, String literal, Field constant, EnumConstantImpl<Type,Class,Field,Method> last) {

        T t;

        try {

            try {

                constant.setAccessible(true);

            } catch (SecurityException e) {

                // in case the constant is already accessible, swallow this error.

                // if the constant is indeed not accessible, we will get IllegalAccessException

                // in the following line, and that is not too late.

            }

            t = (T)constant.get(null);

        } catch (IllegalAccessException e) {

            // impossible, because this is an enum constant

            throw new IllegalAccessError(e.getMessage());

        }

        B b = null;

        try {

            b = baseXducer.parse(literal);

        } catch (Exception e) {

            builder.reportError(new IllegalAnnotationException(

                Messages.INVALID_XML_ENUM_VALUE.format(literal,baseType.getType().toString()), e,

                    new FieldLocatable<Field>(this,constant,nav()) ));

        }

        parseMap.put(b,t);

        printMap.put(t,b);

        return new RuntimeEnumConstantImpl(this, name, literal, last);

    }

    public QName[] getTypeNames() {

        return new QName[]{getTypeName()};

    }

    public boolean isDefault() {

        return false;

    }

    @Override

    public Class getClazz() {

        return clazz;

    }

    public boolean useNamespace() {

        return baseXducer.useNamespace();

    }

    public void declareNamespace(T t, XMLSerializer w) throws AccessorException {

        baseXducer.declareNamespace(printMap.get(t),w);

    }

    public CharSequence print(T t) throws AccessorException {

        return baseXducer.print(printMap.get(t));

    }

    public T parse(CharSequence lexical) throws AccessorException, SAXException {

        // TODO: error handling

        B b = baseXducer.parse(lexical);

        if (tokenStringType) {

            b = (B) ((String)b).trim();

        }

        return parseMap.get(b);

    }

    public void writeText(XMLSerializer w, T t, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {

        baseXducer.writeText(w,printMap.get(t),fieldName);

    }

    public void writeLeafElement(XMLSerializer w, Name tagName, T o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {

        baseXducer.writeLeafElement(w,tagName,printMap.get(o),fieldName);

    }

    public QName getTypeName(T instance) {

        return null;

    }

}