package org.apache.solr.analysis;

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.core.TypeTokenFilter;
import org.apache.solr.common.ResourceLoader;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.util.StrUtils;
import org.apache.solr.util.plugin.ResourceLoaderAware;

import java.io.IOException;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Factory class for {@link TypeTokenFilter}
 * <pre class="prettyprint" >
 * &lt;fieldType name="chars" class="solr.TextField" positionIncrementGap="100"&gt;
 * &lt;analyzer&gt;
 * &lt;tokenizer class="solr.StandardTokenizerFactory"/&gt;
 * &lt;filter class="solr.TypeTokenFilterFactory" types="stoptypes.txt" enablePositionIncrements="true"
 * useWhiteList="false"/&gt;
 * &lt;/analyzer&gt;
 * &lt;/fieldType&gt;</pre>
 */
public class TypeTokenFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware {

  @Override
  public void inform(ResourceLoader loader) {
    String stopTypesFiles = args.get("types");
    enablePositionIncrements = getBoolean("enablePositionIncrements", false);
    useWhitelist = getBoolean("useWhitelist", false);
    if (stopTypesFiles != null) {
      try {
        List<String> files = StrUtils.splitFileNames(stopTypesFiles);
        if (files.size() > 0) {
          stopTypes = new HashSet<String>();
          for (String file : files) {
            List<String> typesLines = loader.getLines(file.trim());
            stopTypes.addAll(typesLines);
          }
        }
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    } else {
      throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Missing required parameter: types.");
    }
  }

  private boolean useWhitelist;
  private Set<String> stopTypes;
  private boolean enablePositionIncrements;

  public boolean isEnablePositionIncrements() {
    return enablePositionIncrements;
  }

  public Set<String> getStopTypes() {
    return stopTypes;
  }

  @Override
  public TokenStream create(TokenStream input) {
    return new TypeTokenFilter(enablePositionIncrements, input, stopTypes, useWhitelist);
  }
}

@@ -1275,17 +1275,18 @@
 nFilter%7D
+.
 %0A
-
  * %3Cpre 
@@ -1389,24 +1389,26 @@
 %22100%22&gt;%0A *
+  
  &lt;analyze
@@ -1411,24 +1411,28 @@
 lyzer&gt;%0A *
+    
  &lt;tokeniz
@@ -1475,24 +1475,28 @@
 ory%22/&gt;%0A *
+    
  &lt;filter 
@@ -1552,16 +1552,37 @@
 pes.txt%22
+%0A *                  
  enableP
@@ -1605,19 +1605,16 @@
 s=%22true%22
-%0A *
  useWhit
@@ -1630,24 +1630,26 @@
 lse%22/&gt;%0A *
+  
  &lt;/analyz

add a period at the end of the first sentence in javadoc in order to avoid displaying the sample definition of schema.xml in o.a.s.analysis package table, and add indent to the sample for readability