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// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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package org.apache.juneau.xmlschema;

import java.io.IOException;

import org.apache.juneau.serializer.*;
import org.apache.juneau.xml.*;

/**
 * Session object that lives for the duration of a single use of {@link XmlSchemaDocSerializer}.
 *
 * <p>
 * This class is NOT thread safe.
 * It is typically discarded after one-time use although it can be reused within the same thread.
 */
public class XmlSchemaDocSerializerSession extends XmlSchemaSerializerSession {

	/**
	 * Create a new session using properties specified in the context.
	 *
	 * @param ctx
	 * 	The context creating this session object.
	 * 	The context contains all the configuration settings for this object.
	 * @param args
	 * 	Runtime arguments.
	 * 	These specify session-level information such as locale and URI context.
	 * 	It also include session-level properties that override the properties defined on the bean and
	 * 	serializer contexts.
	 */
	protected XmlSchemaDocSerializerSession(XmlSchemaDocSerializer ctx, SerializerSessionArgs args) {
		super(ctx, args);
	}

	@Override /* SerializerSession */
	protected void doSerialize(SerializerPipe out, Object o) throws IOException, SerializeException {
		try (XmlWriter w = getXmlWriter(out)) {
			w.append("<?xml")
				.attr("version", "1.0")
				.attr("encoding", "UTF-8")
				.appendln("?>");
			w.flush();
			super.doSerialize(out, o);
		}
	}
}
