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• DocHelper.java

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org.apache.lucene.index.DocHelper Maven / Gradle / Ivy

/*
 * 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.
 */
package org.apache.lucene.index;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.similarities.Similarity;
import org.apache.lucene.store.Directory;

class DocHelper {
  
  public static final FieldType customType;
  public static final String FIELD_1_TEXT = "field one text";
  public static final String TEXT_FIELD_1_KEY = "textField1";
  public static Field textField1;
  static {
    customType = new FieldType(TextField.TYPE_STORED);
    textField1 = new Field(TEXT_FIELD_1_KEY, FIELD_1_TEXT, customType);
  }

  public static final FieldType customType2;
  public static final String FIELD_2_TEXT = "field field field two text";
  //Fields will be lexicographically sorted.  So, the order is: field, text, two
  public static final int [] FIELD_2_FREQS = {3, 1, 1}; 
  public static final String TEXT_FIELD_2_KEY = "textField2";
  public static Field textField2;
  static {
    customType2 = new FieldType(TextField.TYPE_STORED);
    customType2.setStoreTermVectors(true);
    customType2.setStoreTermVectorPositions(true);
    customType2.setStoreTermVectorOffsets(true);
    textField2 = new Field(TEXT_FIELD_2_KEY, FIELD_2_TEXT, customType2);
  }
  
  public static final FieldType customType3;
  public static final String FIELD_3_TEXT = "aaaNoNorms aaaNoNorms bbbNoNorms";
  public static final String TEXT_FIELD_3_KEY = "textField3";
  public static Field textField3;
  
  static {
    customType3 = new FieldType(TextField.TYPE_STORED);
    customType3.setOmitNorms(true);
    textField3 = new Field(TEXT_FIELD_3_KEY, FIELD_3_TEXT, customType3);
  }

  public static final String KEYWORD_TEXT = "Keyword";
  public static final String KEYWORD_FIELD_KEY = "keyField";
  public static Field keyField;
  static {
    keyField = new StringField(KEYWORD_FIELD_KEY, KEYWORD_TEXT, Field.Store.YES);
  }

  public static final FieldType customType5;
  public static final String NO_NORMS_TEXT = "omitNormsText";
  public static final String NO_NORMS_KEY = "omitNorms";
  public static Field noNormsField;
  static {
    customType5 = new FieldType(TextField.TYPE_STORED);
    customType5.setOmitNorms(true);
    customType5.setTokenized(false);
    noNormsField = new Field(NO_NORMS_KEY, NO_NORMS_TEXT, customType5);
  }

  public static final FieldType customType6;
  public static final String NO_TF_TEXT = "analyzed with no tf and positions";
  public static final String NO_TF_KEY = "omitTermFreqAndPositions";
  public static Field noTFField;
  static {
    customType6 = new FieldType(TextField.TYPE_STORED);
    customType6.setIndexOptions(IndexOptions.DOCS);
    noTFField = new Field(NO_TF_KEY, NO_TF_TEXT, customType6);
  }

  public static final FieldType customType7;
  public static final String UNINDEXED_FIELD_TEXT = "unindexed field text";
  public static final String UNINDEXED_FIELD_KEY = "unIndField";
  public static Field unIndField;
  static {
    customType7 = new FieldType();
    customType7.setStored(true);
    unIndField = new Field(UNINDEXED_FIELD_KEY, UNINDEXED_FIELD_TEXT, customType7);
  }


  public static final String UNSTORED_1_FIELD_TEXT = "unstored field text";
  public static final String UNSTORED_FIELD_1_KEY = "unStoredField1";
  public static Field unStoredField1 = new TextField(UNSTORED_FIELD_1_KEY, UNSTORED_1_FIELD_TEXT, Field.Store.NO);

  public static final FieldType customType8;
  public static final String UNSTORED_2_FIELD_TEXT = "unstored field text";
  public static final String UNSTORED_FIELD_2_KEY = "unStoredField2";
  public static Field unStoredField2;
  static {
    customType8 = new FieldType(TextField.TYPE_NOT_STORED);
    customType8.setStoreTermVectors(true);
    unStoredField2 = new Field(UNSTORED_FIELD_2_KEY, UNSTORED_2_FIELD_TEXT, customType8);
  }

  public static final String LAZY_FIELD_BINARY_KEY = "lazyFieldBinary";
  public static byte [] LAZY_FIELD_BINARY_BYTES;
  public static Field lazyFieldBinary;

  public static final String LAZY_FIELD_KEY = "lazyField";
  public static final String LAZY_FIELD_TEXT = "These are some field bytes";
  public static Field lazyField = new Field(LAZY_FIELD_KEY, LAZY_FIELD_TEXT, customType);
  
  public static final String LARGE_LAZY_FIELD_KEY = "largeLazyField";
  public static String LARGE_LAZY_FIELD_TEXT;
  public static Field largeLazyField;
  
  //From Issue 509
  public static final String FIELD_UTF1_TEXT = "field one \u4e00text";
  public static final String TEXT_FIELD_UTF1_KEY = "textField1Utf8";
  public static Field textUtfField1 = new Field(TEXT_FIELD_UTF1_KEY, FIELD_UTF1_TEXT, customType);

  public static final String FIELD_UTF2_TEXT = "field field field \u4e00two text";
  //Fields will be lexicographically sorted.  So, the order is: field, text, two
  public static final int [] FIELD_UTF2_FREQS = {3, 1, 1};
  public static final String TEXT_FIELD_UTF2_KEY = "textField2Utf8";
  public static Field textUtfField2 = new Field(TEXT_FIELD_UTF2_KEY, FIELD_UTF2_TEXT, customType2);
 
  
  
  
  public static Map nameValues = null;

  // ordered list of all the fields...
  // could use LinkedHashMap for this purpose if Java1.4 is OK
  public static Field[] fields = new Field[] {
    textField1,
    textField2,
    textField3,
    keyField,
    noNormsField,
    noTFField,
    unIndField,
    unStoredField1,
    unStoredField2,
    textUtfField1,
    textUtfField2,
    lazyField,
    lazyFieldBinary,//placeholder for binary field, since this is null.  It must be second to last.
    largeLazyField//placeholder for large field, since this is null.  It must always be last
  };

  public static Map all     =new HashMap<>();
  public static Map indexed =new HashMap<>();
  public static Map stored  =new HashMap<>();
  public static Map unstored=new HashMap<>();
  public static Map unindexed=new HashMap<>();
  public static Map termvector=new HashMap<>();
  public static Map notermvector=new HashMap<>();
  public static Map lazy= new HashMap<>();
  public static Map noNorms=new HashMap<>();
  public static Map noTf=new HashMap<>();

  static {
    //Initialize the large Lazy Field
    StringBuilder buffer = new StringBuilder();
    for (int i = 0; i < 10000; i++)
    {
      buffer.append("Lazily loading lengths of language in lieu of laughing ");
    }
    
    LAZY_FIELD_BINARY_BYTES = "These are some binary field bytes".getBytes(StandardCharsets.UTF_8);
    lazyFieldBinary = new StoredField(LAZY_FIELD_BINARY_KEY, LAZY_FIELD_BINARY_BYTES);
    fields[fields.length - 2] = lazyFieldBinary;
    LARGE_LAZY_FIELD_TEXT = buffer.toString();
    largeLazyField = new Field(LARGE_LAZY_FIELD_KEY, LARGE_LAZY_FIELD_TEXT, customType);
    fields[fields.length - 1] = largeLazyField;
    for (int i=0; i map, IndexableField field) {
    map.put(field.name(), field);
  }


  static
  {
    nameValues = new HashMap<>();
    nameValues.put(TEXT_FIELD_1_KEY, FIELD_1_TEXT);
    nameValues.put(TEXT_FIELD_2_KEY, FIELD_2_TEXT);
    nameValues.put(TEXT_FIELD_3_KEY, FIELD_3_TEXT);
    nameValues.put(KEYWORD_FIELD_KEY, KEYWORD_TEXT);
    nameValues.put(NO_NORMS_KEY, NO_NORMS_TEXT);
    nameValues.put(NO_TF_KEY, NO_TF_TEXT);
    nameValues.put(UNINDEXED_FIELD_KEY, UNINDEXED_FIELD_TEXT);
    nameValues.put(UNSTORED_FIELD_1_KEY, UNSTORED_1_FIELD_TEXT);
    nameValues.put(UNSTORED_FIELD_2_KEY, UNSTORED_2_FIELD_TEXT);
    nameValues.put(LAZY_FIELD_KEY, LAZY_FIELD_TEXT);
    nameValues.put(LAZY_FIELD_BINARY_KEY, LAZY_FIELD_BINARY_BYTES);
    nameValues.put(LARGE_LAZY_FIELD_KEY, LARGE_LAZY_FIELD_TEXT);
    nameValues.put(TEXT_FIELD_UTF1_KEY, FIELD_UTF1_TEXT);
    nameValues.put(TEXT_FIELD_UTF2_KEY, FIELD_UTF2_TEXT);
  }   
  
  /**
   * Adds the fields above to a document 
   * @param doc The document to write
   */ 
  public static void setupDoc(Document doc) {
    for (int i=0; i