/*

 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

 */

/*

 * 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 com.sun.org.apache.xerces.internal.util;

import com.sun.org.apache.xerces.internal.impl.Constants;

import com.sun.org.apache.xerces.internal.xni.XMLAttributes;

import org.xml.sax.AttributeList;

import org.xml.sax.ext.Attributes2;

/**

 * Wraps {@link XMLAttributes} and makes it look like

 * {@link AttributeList} and {@link Attributes}.

 *

 * @author Arnaud Le Hors, IBM

 * @author Andy Clark, IBM

 *

 */

@SuppressWarnings("deprecation")

public final class AttributesProxy

    implements AttributeList, Attributes2 {

    //

    // Data

    //

    /** XML attributes. */

    private XMLAttributes fAttributes;

    //

    // Constructors

    //

    public AttributesProxy(XMLAttributes attributes) {

        fAttributes = attributes;

    }

    //

    // Public methods

    //

    /** Sets the XML attributes to be wrapped. */

    public void setAttributes(XMLAttributes attributes) {

        fAttributes = attributes;

    } // setAttributes(XMLAttributes)

    public XMLAttributes getAttributes() {

        return fAttributes;

    }

    /*

     * Attributes methods

     */

    public int getLength() {

        return fAttributes.getLength();

    }

    public String getQName(int index) {

        return fAttributes.getQName(index);

    }

    public String getURI(int index) {

        // This hides the fact that internally we use null instead of empty string

        // SAX requires the URI to be a string or an empty string

        String uri = fAttributes.getURI(index);

        return uri != null ? uri : XMLSymbols.EMPTY_STRING;

    }

    public String getLocalName(int index) {

        return fAttributes.getLocalName(index);

    }

    public String getType(int i) {

        return fAttributes.getType(i);

    }

    public String getType(String name) {

        return fAttributes.getType(name);

    }

    public String getType(String uri, String localName) {

        return uri.equals(XMLSymbols.EMPTY_STRING) ?

                fAttributes.getType(null, localName) :

                    fAttributes.getType(uri, localName);

    }

    public String getValue(int i) {

        return fAttributes.getValue(i);

    }

    public String getValue(String name) {

        return fAttributes.getValue(name);

    }

    public String getValue(String uri, String localName) {

        return uri.equals(XMLSymbols.EMPTY_STRING) ?

                fAttributes.getValue(null, localName) :

                    fAttributes.getValue(uri, localName);

    }

    public int getIndex(String qName) {

        return fAttributes.getIndex(qName);

    }

    public int getIndex(String uri, String localPart) {

        return uri.equals(XMLSymbols.EMPTY_STRING) ?

                fAttributes.getIndex(null, localPart) :

                    fAttributes.getIndex(uri, localPart);

    }

    /*

     * Attributes2 methods

     */

    public boolean isDeclared(int index) {

        if (index < 0 || index >= fAttributes.getLength()) {

            throw new ArrayIndexOutOfBoundsException(index);

        }

        return Boolean.TRUE.equals(

            fAttributes.getAugmentations(index).getItem(

            Constants.ATTRIBUTE_DECLARED));

    }

    public boolean isDeclared(String qName) {

        int index = getIndex(qName);

        if (index == -1) {

            throw new IllegalArgumentException(qName);

        }

        return Boolean.TRUE.equals(

            fAttributes.getAugmentations(index).getItem(

            Constants.ATTRIBUTE_DECLARED));

    }

    public boolean isDeclared(String uri, String localName) {

        int index = getIndex(uri, localName);

        if (index == -1) {

            throw new IllegalArgumentException(localName);

        }

        return Boolean.TRUE.equals(

            fAttributes.getAugmentations(index).getItem(

            Constants.ATTRIBUTE_DECLARED));

    }

    public boolean isSpecified(int index) {

        if (index < 0 || index >= fAttributes.getLength()) {

            throw new ArrayIndexOutOfBoundsException(index);

        }

        return fAttributes.isSpecified(index);

    }

    public boolean isSpecified(String qName) {

        int index = getIndex(qName);

        if (index == -1) {

            throw new IllegalArgumentException(qName);

        }

        return fAttributes.isSpecified(index);

    }

    public boolean isSpecified(String uri, String localName) {

        int index = getIndex(uri, localName);

        if (index == -1) {

            throw new IllegalArgumentException(localName);

        }

        return fAttributes.isSpecified(index);

    }

    /*

     * AttributeList methods

     */

    public String getName(int i) {

        return fAttributes.getQName(i);

    }

}