trunk/camel-core/src/main/java/org/apache/camel/component/file/GenericFileBinding.java

/**
 * 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.camel.component.file;

import java.io.IOException;

import org.apache.camel.Exchange;

/**
 * Binding between the generic file and the body content.
 */
public interface GenericFileBinding<T> {

    /**
     * Gets the body of the file
     *
     * @param file the file
     * @return the body
     */
    Object getBody(GenericFile<T> file);

    /**
     * Sets the body from the given file
     *
     * @param file the file
     * @param body the body
     */
    void setBody(GenericFile<T> file, Object body);

    /**
     * Ensures the content is loaded from the file into memory
     *
     * @param exchange the current exchange
     * @param file the file
     * @throws java.io.IOException is thrown if the content could not be loaded
     */
    void loadContent(Exchange exchange, GenericFile<?> file) throws IOException;
}