/*

 * 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.messaging.saaj.soap;

import java.util.logging.Logger;

import javax.xml.parsers.SAXParser;

import javax.xml.soap.SOAPException;

import javax.xml.transform.Source;

import javax.xml.transform.Transformer;

import javax.xml.transform.dom.DOMResult;

import javax.xml.transform.sax.SAXSource;

import javax.xml.transform.stream.StreamSource;

import org.xml.sax.InputSource;

import org.xml.sax.XMLReader;

import com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl;

import com.sun.xml.internal.messaging.saaj.util.*;

import com.sun.xml.internal.messaging.saaj.util.transform.EfficientStreamingTransformer;

/**

 * EnvelopeFactory creates SOAP Envelope objects using different

 * underlying implementations.

 */

public class EnvelopeFactory {

    protected static final Logger

        log = Logger.getLogger(LogDomainConstants.SOAP_DOMAIN,

        "com.sun.xml.internal.messaging.saaj.soap.LocalStrings");

    private static ParserPool parserPool = new ParserPool(5);

    public static Envelope createEnvelope(Source src, SOAPPartImpl soapPart)

        throws SOAPException

    {

        // Insert SAX filter to disallow Document Type Declarations since

        // they are not legal in SOAP

        SAXParser saxParser = null;

        if (src instanceof StreamSource) {

            try {

                saxParser = parserPool.get();

            } catch (Exception e) {

                log.severe("SAAJ0601.util.newSAXParser.exception");

                throw new SOAPExceptionImpl(

                    "Couldn't get a SAX parser while constructing a envelope",

                    e);

            }

            InputSource is = SAXSource.sourceToInputSource(src);

            if (is.getEncoding()== null && soapPart.getSourceCharsetEncoding() != null) {

                is.setEncoding(soapPart.getSourceCharsetEncoding());

            }

            XMLReader rejectFilter;

            try {

                rejectFilter = new RejectDoctypeSaxFilter(saxParser);

            } catch (Exception ex) {

                log.severe("SAAJ0510.soap.cannot.create.envelope");

                throw new SOAPExceptionImpl(

                    "Unable to create envelope from given source: ",

                    ex);

            }

            src = new SAXSource(rejectFilter, is);

        }

        try {

            Transformer transformer =

                EfficientStreamingTransformer.newTransformer();

            DOMResult result = new DOMResult(soapPart);

            transformer.transform(src, result);

            Envelope env = (Envelope) soapPart.getEnvelope();

            return env;

        } catch (Exception ex) {

            if (ex instanceof SOAPVersionMismatchException) {

                throw (SOAPVersionMismatchException) ex;

            }

            log.severe("SAAJ0511.soap.cannot.create.envelope");

            throw new SOAPExceptionImpl(

                "Unable to create envelope from given source: ",

                ex);

        } finally {

            if (saxParser != null) {

                parserPool.returnParser(saxParser);

            }

        }

    }

}