/* ====================================================================
   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 org.apache.poi;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import javax.xml.stream.XMLStreamReader;

import org.apache.poi.util.DocumentHelper;
import org.apache.xmlbeans.SchemaType;
import org.apache.xmlbeans.XmlBeans;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;
import org.apache.xmlbeans.xml.stream.XMLInputStream;
import org.apache.xmlbeans.xml.stream.XMLStreamException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

@SuppressWarnings("deprecation")
public class POIXMLTypeLoader {

    public static final XmlOptions DEFAULT_XML_OPTIONS;
    static {
        DEFAULT_XML_OPTIONS = new XmlOptions();
        DEFAULT_XML_OPTIONS.setSaveOuter();
        DEFAULT_XML_OPTIONS.setUseDefaultNamespace();
        DEFAULT_XML_OPTIONS.setSaveAggressiveNamespaces();
        DEFAULT_XML_OPTIONS.setCharacterEncoding("UTF-8");
        // Piccolo is disabled for POI builts, i.e. JAXP is used for parsing
        // so only user code using XmlObject/XmlToken.Factory.parse
        // directly can bypass the entity check, which is probably unlikely (... and not within our responsibility :)) 
        // DEFAULT_XML_OPTIONS.setLoadEntityBytesLimit(4096);

        Map<String, String> map = new HashMap<String, String>();
        map.put("http://schemas.openxmlformats.org/drawingml/2006/main", "a");
        map.put("http://schemas.openxmlformats.org/drawingml/2006/chart", "c");
        map.put("http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing", "wp");
        map.put("http://schemas.openxmlformats.org/markup-compatibility/2006", "ve");
        map.put("http://schemas.openxmlformats.org/officeDocument/2006/math", "m");
        map.put("http://schemas.openxmlformats.org/officeDocument/2006/relationships", "r");
        map.put("http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes", "vt");
        map.put("http://schemas.openxmlformats.org/presentationml/2006/main", "p");
        map.put("http://schemas.openxmlformats.org/wordprocessingml/2006/main", "w");
        map.put("http://schemas.microsoft.com/office/word/2006/wordml", "wne");
        map.put("urn:schemas-microsoft-com:office:office", "o");
        map.put("urn:schemas-microsoft-com:office:excel", "x");
        map.put("urn:schemas-microsoft-com:office:word", "w10");
        map.put("urn:schemas-microsoft-com:vml", "v");
        DEFAULT_XML_OPTIONS.setSaveSuggestedPrefixes(Collections.unmodifiableMap(map));
    }
    
    private static XmlOptions getXmlOptions(XmlOptions options) {
        return options == null ? DEFAULT_XML_OPTIONS : options;
    }

    public static XmlObject newInstance(SchemaType type, XmlOptions options) {
        return XmlBeans.getContextTypeLoader().newInstance(type, getXmlOptions(options));
    }

    public static XmlObject parse(String xmlText, SchemaType type, XmlOptions options) throws XmlException {
        try {
            return parse(new StringReader(xmlText), type, options);
        } catch (IOException e) {
            throw new XmlException("Unable to parse xml bean", e);
        }
    }

    public static XmlObject parse(File file, SchemaType type, XmlOptions options) throws XmlException, IOException {
        InputStream is = new FileInputStream(file);
        try {
            return parse(is, type, options);
        } finally {
            is.close();
        }
    }

    public static XmlObject parse(URL file, SchemaType type, XmlOptions options) throws XmlException, IOException {
        InputStream is = file.openStream();
        try {
            return parse(is, type, options);
        } finally {
            is.close();
        }
    }

    public static XmlObject parse(InputStream jiois, SchemaType type, XmlOptions options) throws XmlException, IOException {
        try {
            Document doc = DocumentHelper.readDocument(jiois);
            return XmlBeans.getContextTypeLoader().parse(doc.getDocumentElement(), type, getXmlOptions(options));
        } catch (SAXException e) {
            throw new IOException("Unable to parse xml bean", e);
        }
    }

    public static XmlObject parse(XMLStreamReader xsr, SchemaType type, XmlOptions options) throws XmlException {
        return XmlBeans.getContextTypeLoader().parse(xsr, type, getXmlOptions(options));
    }

    public static XmlObject parse(Reader jior, SchemaType type, XmlOptions options) throws XmlException, IOException {
        try {
            Document doc = DocumentHelper.readDocument(new InputSource(jior));
            return XmlBeans.getContextTypeLoader().parse(doc.getDocumentElement(), type, getXmlOptions(options));
        } catch (SAXException e) {
            throw new XmlException("Unable to parse xml bean", e);
        }
    }

    public static XmlObject parse(Node node, SchemaType type, XmlOptions options) throws XmlException {
        return XmlBeans.getContextTypeLoader().parse(node, type, getXmlOptions(options));
    }

    public static XmlObject parse(XMLInputStream xis, SchemaType type, XmlOptions options) throws XmlException, XMLStreamException {
        return XmlBeans.getContextTypeLoader().parse(xis, type, getXmlOptions(options));
    }
    
    public static XMLInputStream newValidatingXMLInputStream ( XMLInputStream xis, SchemaType type, XmlOptions options ) throws XmlException, XMLStreamException {
        return XmlBeans.getContextTypeLoader().newValidatingXMLInputStream(xis, type, getXmlOptions(options));
    }
}