AbstractCsvSaver.java

/*
 * Copyright 2013 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 com.orangesignal.csv.manager;

import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.util.List;
import java.util.zip.ZipOutputStream;

import com.orangesignal.csv.Csv;
import com.orangesignal.csv.CsvConfig;
import com.orangesignal.csv.CsvListHandler;
import com.orangesignal.jlha.LhaOutputStream;

/**
 * 区切り文字形式データの統合出力インタフェースの実装を容易にするための抽象クラスを提供します。
 *
 * @author Koji Sugisawa
 * @since 1.2.1
 */
public abstract class AbstractCsvSaver<T, H extends CsvListHandler<T>> implements CsvSaver<T> {

	/**
	 * 区切り文字形式情報を保持します。
	 */
	private final CsvConfig cfg;

	/**
	 * Java プログラム要素のリストを保持します。
	 */
	private final List<T> beans;

	/**
	 * コンストラクタです。
	 * 
	 * @param cfg 区切り文字形式情報
	 * @param beans Java プログラム要素のリスト
	 * @throws IllegalArgumentException {@code cfg} が {@code null} の場合
	 */
	protected AbstractCsvSaver(final CsvConfig cfg, final List<T> beans) {
		if (cfg == null) {
			throw new IllegalArgumentException("CsvConfig must not be null");
		}
		this.cfg = cfg;
		this.beans = beans;
	}

	/**
	 * 実装は区切り文字形式データリストのデータアクセスハンドラを返します。
	 * 
	 * @return 区切り文字形式データリストのデータアクセスハンドラ
	 */
	protected abstract H getCsvListHandler();

	@Override
	public void to(final Writer writer) throws IOException {
		Csv.save(beans, writer, cfg, getCsvListHandler());
	}

	@Override
	public void to(final OutputStream out, final String encoding) throws IOException {
		Csv.save(beans, out, encoding, cfg, getCsvListHandler());
	}

	@Override
	public void to(final OutputStream out) throws IOException {
		Csv.save(beans, out, cfg, getCsvListHandler());
	}

	@Override
	public void to(final File file, final String encoding) throws IOException {
		Csv.save(beans, file, encoding, cfg, getCsvListHandler());
	}

	@Override
	public void to(final File file) throws IOException {
		Csv.save(beans, file, cfg, getCsvListHandler());
	}

	@Override
	public void to(final LhaOutputStream out, final String encoding, final String entryName) throws IOException {
		Csv.save(beans, out, encoding, cfg, getCsvListHandler(), entryName);
	}

	@Override
	public void to(final LhaOutputStream out, final String entryName) throws IOException {
		Csv.save(beans, out, cfg, getCsvListHandler(), entryName);
	}

	@Override
	public void to(final ZipOutputStream out, final String encoding, final String entryName) throws IOException {
		Csv.save(beans, out, encoding, cfg, getCsvListHandler(), entryName);
	}

	@Override
	public void to(final ZipOutputStream out, final String entryName) throws IOException {
		Csv.save(beans, out, cfg, getCsvListHandler(), entryName);
	}

}