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/*
 * OpenEdge plugin for SonarQube
 * Copyright (c) 2015-2024 Riverside Software
 * contact AT riverside DASH software DOT fr
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.plugins.openedge.sensor;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import org.antlr.v4.runtime.tree.ParseTree;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.api.batch.fs.FilePredicates;
import org.sonar.api.batch.fs.InputFile;
import org.sonar.api.batch.fs.InputFile.Type;
import org.sonar.api.batch.rule.ActiveRule;
import org.sonar.api.batch.sensor.Sensor;
import org.sonar.api.batch.sensor.SensorContext;
import org.sonar.api.batch.sensor.SensorDescriptor;
import org.sonar.plugins.openedge.api.Constants;
import org.sonar.plugins.openedge.api.checks.OpenEdgeDumpFileCheck;
import org.sonar.plugins.openedge.foundation.OpenEdgeComponents;

import eu.rssw.antlr.database.DumpFileUtils;

public class OpenEdgeDBRulesSensor implements Sensor {
  private static final Logger LOG = LoggerFactory.getLogger(OpenEdgeDBRulesSensor.class);

  // IoC
  private final OpenEdgeComponents components;

  public OpenEdgeDBRulesSensor(OpenEdgeComponents components) {
    this.components = components;
  }

  @Override
  public void describe(SensorDescriptor descriptor) {
    descriptor.onlyOnLanguage(Constants.DB_LANGUAGE_KEY).name(getClass().getSimpleName());
  }

  @Override
  public void execute(SensorContext context) {
    Map ruleTime = new HashMap<>();
    long parseTime = 0L;
    components.init(context);

    for (Map.Entry entry : components.getDumpFileRules().entrySet()) {
      ruleTime.put(entry.getKey().ruleKey().toString(), 0L);
    }

    FilePredicates predicates = context.fileSystem().predicates();
    for (InputFile file : context.fileSystem().inputFiles(
        predicates.and(predicates.hasLanguage(Constants.DB_LANGUAGE_KEY), predicates.hasType(Type.MAIN)))) {
      try {
        LOG.debug("Generating ParseTree for dump file {}", file);
        long time = System.currentTimeMillis();
        ParseTree tree = DumpFileUtils.getDumpFileParseTree(file.inputStream(), file.charset());
        parseTime += (System.currentTimeMillis() - time);

        for (Map.Entry entry : components.getDumpFileRules().entrySet()) {
          LOG.debug("ActiveRule - Internal key {} - Repository {} - Rule {}", entry.getKey().internalKey(),
              entry.getKey().ruleKey().repository(), entry.getKey().ruleKey().rule());
          long startTime = System.currentTimeMillis();
          entry.getValue().execute(file, tree);
          ruleTime.put(entry.getKey().ruleKey().toString(),
              ruleTime.get(entry.getKey().ruleKey().toString()) + System.currentTimeMillis() - startTime);
        }

      } catch (IOException caught) {
        LOG.error("Unable to analyze {}", file, caught);
      }
    }

    LOG.info("AST Generation | time={} ms", parseTime);
    for (Entry entry : ruleTime.entrySet()) {
      LOG.info("Rule {} | time={} ms", entry.getKey(), entry.getValue());
    }
  }

}