/*
* Copyright 2017 NAVER Corp.
*
* 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.navercorp.pinpoint.profiler.metadata;
import com.navercorp.pinpoint.bootstrap.context.ParsingResult;
import com.navercorp.pinpoint.common.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author emeroad
*/
public class DefaultCachingSqlNormalizer implements CachingSqlNormalizer {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private static final DefaultParsingResult EMPTY_OBJECT = new DefaultParsingResult("");
private final SimpleCache<String> sqlCache;
private final SqlParser sqlParser;
public DefaultCachingSqlNormalizer(int cacheSize) {
this.sqlCache = new SimpleCache<String>(cacheSize);
this.sqlParser = new DefaultSqlParser();
}
@Override
public ParsingResult wrapSql(String sql) {
if (sql == null) {
return EMPTY_OBJECT;
}
return new DefaultParsingResult(sql);
}
@Override
public boolean normalizedSql(ParsingResult parsingResult) {
if (parsingResult == null) {
return false;
}
if (parsingResult == EMPTY_OBJECT) {
return false;
}
if (parsingResult.getId() != ParsingResult.ID_NOT_EXIST) {
// already cached
return false;
}
if (!(parsingResult instanceof ParsingResultInternal)) {
if (logger.isWarnEnabled()) {
logger.warn("unsupported ParsingResult Type type {}", parsingResult);
}
throw new IllegalArgumentException("unsupported ParsingResult Type");
}
final ParsingResultInternal parsingResultInternal = (ParsingResultInternal) parsingResult;
final String originalSql = parsingResultInternal.getOriginalSql();
final NormalizedSql normalizedSql = this.sqlParser.normalizedSql(originalSql);
final Result cachingResult = this.sqlCache.put(normalizedSql.getNormalizedSql());
// set normalizedSql
// set sqlId
final boolean success = parsingResultInternal.setId(cachingResult.getId());
if (!success) {
if (logger.isWarnEnabled()) {
logger.warn("invalid state. setSqlId fail setId:{}, ParsingResultInternal:{}", cachingResult.getId(), parsingResultInternal);
}
}
parsingResultInternal.setSql(normalizedSql.getNormalizedSql());
parsingResultInternal.setOutput(normalizedSql.getParseParameter());
return cachingResult.isNewValue();
}
}