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/*

 * 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

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 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

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package com.sun.org.apache.xerces.internal.impl.dv.xs;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;

import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;

import com.sun.org.apache.xerces.internal.util.XMLChar;

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

import com.sun.org.apache.xerces.internal.xs.datatypes.XSQName;

/**

 * Represent the schema type "QName" and "NOTATION"

 *

 * @xerces.internal

 *

 * @author Neeraj Bajaj, Sun Microsystems, inc.

 * @author Sandy Gao, IBM

 *

 */

public class QNameDV extends TypeValidator {

    private static final String EMPTY_STRING = "".intern();

    public short getAllowedFacets() {

        return (XSSimpleTypeDecl.FACET_LENGTH | XSSimpleTypeDecl.FACET_MINLENGTH | XSSimpleTypeDecl.FACET_MAXLENGTH | XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_ENUMERATION | XSSimpleTypeDecl.FACET_WHITESPACE);

    }

    public Object getActualValue(String content, ValidationContext context)

        throws InvalidDatatypeValueException {

        // "prefix:localpart" or "localpart"

        // get prefix and local part out of content

        String prefix, localpart;

        int colonptr = content.indexOf(":");

        if (colonptr > 0) {

            prefix = context.getSymbol(content.substring(0,colonptr));

            localpart = content.substring(colonptr+1);

        } else {

            prefix = EMPTY_STRING;

            localpart = content;

        }

        // both prefix (if any) a nd localpart must be valid NCName

        if (prefix.length() > 0 && !XMLChar.isValidNCName(prefix))

            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "QName"});

        if(!XMLChar.isValidNCName(localpart))

            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "QName"});

        // resove prefix to a uri, report an error if failed

        String uri = context.getURI(prefix);

        if (prefix.length() > 0 && uri == null)

            throw new InvalidDatatypeValueException("UndeclaredPrefix", new Object[]{content, prefix});

        return new XQName(prefix, context.getSymbol(localpart), context.getSymbol(content), uri);

    }

    // REVISIT: qname and notation shouldn't support length facets.

    //          now we just return the length of the rawname

    public int getDataLength(Object value) {

        return ((XQName)value).rawname.length();

    }

    /**

     * represent QName data

     */

    private static final class XQName extends QName implements XSQName {

        /** Constructs a QName with the specified values. */

        public XQName(String prefix, String localpart, String rawname, String uri) {

            setValues(prefix, localpart, rawname, uri);

        } // <init>(String,String,String,String)

        /** Returns true if the two objects are equal. */

        public boolean equals(Object object) {

            if (object instanceof QName) {

                QName qname = (QName)object;

                return uri == qname.uri && localpart == qname.localpart;

            }

            return false;

        } // equals(Object):boolean

        public synchronized String toString() {

            return rawname;

        }

        public javax.xml.namespace.QName getJAXPQName() {

            return new javax.xml.namespace.QName(uri, localpart, prefix);

        }

        public QName getXNIQName() {

            return this;

        }

    }

} // class QNameDVDV