DelimiterParserFactory.java example

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logdb-master
/*
 * Copyright 2010 NCHOVY
 * 
 * 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.araqne.log.api;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.felix.ipojo.annotations.Component;
import org.apache.felix.ipojo.annotations.Provides;

@Component(name = "delimiter-parser-factory")
@Provides
public class DelimiterParserFactory extends AbstractLogParserFactory {

	private static final String DELIMITER_TARGET = "delimiter_target";
	private static final String DELIMITER = "delimiter";
	private static final String COLUMN_HEADERS = "column_headers";
	private static final String INCLUDE_DELIMITER_TARGET = "include_delimiter_target";

	@Override
	public String getName() {
		return DELIMITER;
	}

	@Override
	public Collection<Locale> getDisplayNameLocales() {
		return Arrays.asList(Locale.ENGLISH, Locale.KOREAN, Locale.JAPANESE, Locale.CHINESE);
	}

	@Override
	public String getDisplayName(Locale locale) {
		if (locale != null && locale.equals(Locale.KOREAN))
			return "구분자";
		if (locale != null && locale.equals(Locale.JAPANESE))
			return "区切り文字";
		if(locale != null && locale.equals(Locale.CHINESE))
			return "分隔符";
		return "Delimiter";
	}

	@Override
	public Collection<Locale> getDescriptionLocales() {
		return Arrays.asList(Locale.ENGLISH, Locale.KOREAN, Locale.JAPANESE, Locale.CHINESE);
	}

	@Override
	public String getDescription(Locale locale) {
		if (locale != null && locale.equals(Locale.KOREAN))
			return "구분자로 구분된 각 토큰에 대하여 설정된 필드 이름들을 순서대로 적용하여 파싱합니다.";
		if (locale != null && locale.equals(Locale.JAPANESE))
			return "区切り文字で分けている各トークンに設定されたフィールド名を順番に適用し解析します。";
		if(locale != null && locale.equals(Locale.CHINESE))
			return "对以分隔符分隔的各关键字以设置的字段名称顺序进行解析。";
		return "Divide a string into tokens based on the given delimiter and column names.";
	}

	@Override
	public Collection<LoggerConfigOption> getConfigOptions() {
		List<LoggerConfigOption> options = new ArrayList<LoggerConfigOption>();
		options.add(new StringConfigType(DELIMITER, t(DELIMITER, "구분자", "区切り文字", "分隔符"), t(
				"One delimiter character or 4-digit unicode escape sequence (e.g. \u0007)",
				"하나의 아스키 구분자 혹은 4자리 유니코드 이스케이프 시퀀스 (예: \u0007)", 
				"一つのアスキー区切り文字もしくは４桁のユニコードエスケープシーケンス(例: \u0007)",
				"一个ASCII码字符或4位unicode字符(示例: \u0007)"), true));
		options.add(new StringConfigType(COLUMN_HEADERS, t("column headers", "필드 이름 목록", "フィールド名リスト", "字段名称列表"),
				t("separated by comma",
				"쉼표로 구분된 필드 이름들", "コンマで分けているフィールドな", "以逗号分隔的字段名称"), false));
		options.add(new StringConfigType(DELIMITER_TARGET, t("delimiter target field", "대상 필드", "対象フィールド", "目标字段"), t(
				"Delimiter target field name", "구분자로 파싱할 대상 필드 이름", "区切り文字で解析するフィールドな", "需要以分隔符解析的目标字段名称"), false));
		options.add(new StringConfigType(INCLUDE_DELIMITER_TARGET, t("include delimiter target", "원본 값 포함 여부", "原本含み可否", "是否包含原始字段"), t(
				"Return also delimiter target field (true or false)", "구분자로 파싱된 결과 외에 원본 필드 값도 포함할지 설정합니다. true 혹은 false",
				"区切り文字で解析した結果に原本フィールドを含むか設定します。trueまたはfalse", "以逗号分隔的原始字段=变更字段名称列表"), false));

		return options;
	}

	private Map<Locale, String> t(String enText, String koText, String jpText, String cnText) {
		Map<Locale, String> m = new HashMap<Locale, String>();
		m.put(Locale.ENGLISH, enText);
		m.put(Locale.KOREAN, koText);
		m.put(Locale.JAPANESE, jpText);
		m.put(Locale.CHINESE, cnText);
		return m;
	}

	@Override
	public LogParser createParser(Map<String, String> config) {
		String delimiter = config.get(DELIMITER);
		if (delimiter == null)
			delimiter = " ";

		String[] columnHeaders = null;
		String h = config.get(COLUMN_HEADERS);
		if (h != null) {
			columnHeaders = h.split(",");
		
			for (int i = 0; i < columnHeaders.length; i++)
				columnHeaders[i] = columnHeaders[i].trim();
		}

		boolean includeDelimiterTarget = false;
		if (config.containsKey(INCLUDE_DELIMITER_TARGET)) {
			String s = config.get(INCLUDE_DELIMITER_TARGET);
			includeDelimiterTarget = (s != null && Boolean.parseBoolean(s));
		}

		String delimiterTarget = config.get(DELIMITER_TARGET);
		if (delimiterTarget == null)
			delimiterTarget = "line";

		return new DelimiterParser(delimiter, columnHeaders, delimiterTarget, includeDelimiterTarget);
	}
}