FileResourceStorage.java example

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light-admin-master
/*
 * Copyright 2012-2014 the original author or authors.
 *
 * 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.lightadmin.core.storage;

import org.springframework.data.mapping.PersistentProperty;

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

/**
 * TODO: Document me!
 *
 * @author Maxim Kharchenko (kharchenko.max@gmail.com)
 */
public interface FileResourceStorage {

    void delete(Object instance, PersistentProperty persistentProperty);

    void save(Object instance, PersistentProperty attrMeta, Object value) throws IOException;

    void cleanup(Object instance, PersistentProperty persistentProperty) throws IOException;

    boolean fileExists(Object instance, PersistentProperty persistentProperty) throws IOException;

    byte[] load(Object instance, PersistentProperty persistentProperty) throws IOException;

    long copy(Object instance, PersistentProperty persistentProperty, OutputStream outputStream) throws IOException;

}