/*
    * Copyright 2012-2021 CodeLibs Project and the Others.
    *
    * 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.codelibs.fess.indexer;
  
  import java.util.Map;
  
  import org.codelibs.fess.Constants;
  import org.codelibs.fess.es.config.exentity.BoostDocumentRule;
  import org.codelibs.fess.util.ComponentUtil;
  
  public class DocBoostMatcher {
  
      private String boostExpression = "0";
  
      private String matchExpression;
  
      private String scriptType;
  
      public DocBoostMatcher() {
          scriptType = Constants.DEFAULT_SCRIPT;
      }
  
      public DocBoostMatcher(final BoostDocumentRule rule) {
          matchExpression = rule.getUrlExpr();
          boostExpression = rule.getBoostExpr();
          scriptType = ComponentUtil.getFessConfig().getCrawlerDefaultScript();
      }
  
      public boolean match(final Map<String, Object> map) {
  
          if (map == null || map.isEmpty() || matchExpression == null) {
              return false;
          }
  
          final Object value = ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(matchExpression, map);
          if (value instanceof Boolean) {
              return ((Boolean) value);
          }
  
          return false;
      }
  
      public float getValue(final Map<String, Object> map) {
          if (map == null || map.isEmpty()) {
              return 0.0f;
          }
  
          final Object value = ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(boostExpression, map);
          if (value instanceof Integer) {
              return ((Integer) value).floatValue();
          }
          if (value instanceof Long) {
              return ((Long) value).floatValue();
          }
          if (value instanceof Float) {
              return ((Float) value);
          } else if (value instanceof Double) {
              return ((Double) value).floatValue();
          } else if (value != null) {
              return Float.parseFloat(value.toString());
          }
  
          return 0.0f;
      }
  
      public String getBoostExpression() {
          return boostExpression;
      }
  
      public void setBoostExpression(final String expression) {
          boostExpression = expression;
      }
  
      public String getMatchExpression() {
          return matchExpression;
      }
  
      public void setMatchExpression(final String expression) {
          matchExpression = expression;
      }
  
  }