/*
 * Copyright 2001-2004 The Apache Software Foundation.
 * 
 * Licensed 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.axis.encoding.ser;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;

import javax.xml.namespace.QName;

import org.w3c.dom.Element;
import org.xml.sax.Attributes;

import org.apache.axis.Constants;
import org.apache.axis.encoding.SerializationContext;
import org.apache.axis.encoding.SimpleValueSerializer;
import org.apache.axis.wsdl.fromJava.Types;

/**
 * Serializer for Time.
 * @author Florent Benoit
*/
public class TimeSerializer implements SimpleValueSerializer {

    /**
     * Parser
     */
    private static SimpleDateFormat zulu = new SimpleDateFormat("HH:mm:ss.SSS'Z'");

    // We should always format dates in the GMT timezone
    static {
        zulu.setTimeZone(TimeZone.getTimeZone("GMT"));
    }

    
    /**
     * Serialize a Time.
     */
    public void serialize(QName name, Attributes attributes,
                          Object value, SerializationContext context)
        throws IOException
    {
        context.startElement(name, attributes);
        context.writeString(getValueAsString(value, context));
        context.endElement();
    }

    public String getValueAsString(Object value, SerializationContext context) {
        StringBuffer buf = new StringBuffer();
        // Reset year, month, day
        ((Calendar) value).set(0,0,0);
        buf.append(zulu.format(((Calendar)value).getTime()));
        return buf.toString();
    }

    public String getMechanismType() { return Constants.AXIS_SAX; }

    /**
     * Return XML schema for the specified type, suitable for insertion into
     * the <types> element of a WSDL document, or underneath an
     * <element> or <attribute> declaration.
     *
     * @param javaType the Java Class we're writing out schema for
     * @param types the Java2WSDL Types object which holds the context
     *              for the WSDL being generated.
     * @return a type element containing a schema simpleType/complexType
     * @see org.apache.axis.wsdl.fromJava.Types
     */
    public Element writeSchema(Class javaType, Types types) throws Exception {
        return null;
    }
}