/*
 * 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.jackrabbit.webdav.client.methods;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;

/**
 * <code>XmlRequestEntity</code>...
 * @deprecated is it really use???
 */
public class XmlRequestEntity extends HttpEntityEnclosingRequestBase {

    private static Logger log = LoggerFactory.getLogger(XmlRequestEntity.class);

    private final StringEntity delegatee;

    public XmlRequestEntity(Document xmlDocument) throws IOException {
        super();
        ByteArrayOutputStream out = new ByteArrayOutputStream();

        try {
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer();
            transformer.setOutputProperty(OutputKeys.METHOD, "xml");
            transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
            transformer.setOutputProperty(OutputKeys.INDENT, "no");
            transformer.transform(new DOMSource(xmlDocument), new StreamResult(out));
        } catch (TransformerException e) {
            log.error("XML serialization failed", e);
            IOException exception = new IOException("XML serialization failed");
            exception.initCause(e);
            throw exception;
        }

        delegatee = new StringEntity(out.toString(), "text/xml", "UTF-8");
    }

    public boolean isRepeatable() {
        return delegatee.isRepeatable();
    }

    public String getContentType() {
        return delegatee.getContentType().getValue();
    }

    public void writeRequest(OutputStream out) throws IOException {
        delegatee.writeTo(out);
    }

    public long getContentLength() {
        return delegatee.getContentLength();
    }

    @Override
    public String getMethod() {
        return HttpPost.METHOD_NAME;
    }
}