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/*
 * Copyright 2004-2009 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.apache.lucene.store.jdbc.index;

import java.io.IOException;

import org.apache.lucene.store.ConfigurableBufferedIndexInput;
import org.apache.lucene.store.jdbc.JdbcDirectory;
import org.apache.lucene.store.jdbc.JdbcFileEntrySettings;

/**
 * A simple base class that performs index input memory based buffering. The buffer size can be configured
 * under the {@link #BUFFER_SIZE_SETTING} name.
 *
 * @author kimchy
 */
public abstract class JdbcBufferedIndexInput extends ConfigurableBufferedIndexInput implements JdbcIndexConfigurable {

    /**
     * The buffer size setting name. See {@link JdbcFileEntrySettings#setIntSetting(String,int)}.
     * Should be set in bytes.
     */
    public static final String BUFFER_SIZE_SETTING = "indexInput.bufferSize";

    public void configure(String name, JdbcDirectory jdbcDirectory, JdbcFileEntrySettings settings) throws IOException {
        setBufferSize(settings.getSettingAsInt(BUFFER_SIZE_SETTING, BUFFER_SIZE));
    }
}