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The OpenWS library provides a growing set of tools to work with web services at a low level. These tools include classes for creating and reading SOAP messages, transport-independent clients for connecting to web services, and various transports for use with those clients.

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/*
 * Licensed to the University Corporation for Advanced Internet Development, 
 * Inc. (UCAID) under one or more contributor license agreements.  See the 
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The UCAID 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.opensaml.ws.message.decoder;

import org.opensaml.ws.message.MessageContext;
import org.opensaml.xml.security.SecurityException;

/**
 * Decodes a message, from an inbound transport, in a binding specific manner. As the decode proceeds information is
 * stored in the {@link MessageContext}. The decoding process deserializes the message from the inbound transport into
 * its DOM representation, unmarshall the DOM into the appropriate XMLObject, and then evaluates the security policy
 * against the inbound transport and decoded message.
 * 
 * Message decoders MUST must be thread safe and stateless.
 */
public interface MessageDecoder {

    /**
     * Decodes a message in a binding specific manner.
     * 
     * @param messageContext current message context
     * 
     * @throws MessageDecodingException thrown if the message can not be decoded
     * @throws SecurityException thrown if the decoded message does not meet the required security constraints
     */
    public void decode(MessageContext messageContext) throws MessageDecodingException, SecurityException;

}