Java CharFilterFactory类代码示例

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
private void doTestTokenizer(String tokenizer) throws IOException {
  Class<? extends TokenizerFactory> factoryClazz = TokenizerFactory.lookupClass(tokenizer);
  TokenizerFactory factory = (TokenizerFactory) initialize(factoryClazz);
  if (factory != null) {
    // we managed to fully create an instance. check a few more things:
    
    // if it implements MultiTermAware, sanity check its impl
    if (factory instanceof MultiTermAwareComponent) {
      AbstractAnalysisFactory mtc = ((MultiTermAwareComponent) factory).getMultiTermComponent();
      assertNotNull(mtc);
      // its not ok to return e.g. a charfilter here: but a tokenizer could wrap a filter around it
      assertFalse(mtc instanceof CharFilterFactory);
    }
    
    // beast it just a little, it shouldnt throw exceptions:
    // (it should have thrown them in initialize)
    checkRandomData(random(), new FactoryAnalyzer(factory, null, null), 100, 20, false, false);
  }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
private void doTestCharFilter(String charfilter) throws IOException {
  Class<? extends CharFilterFactory> factoryClazz = CharFilterFactory.lookupClass(charfilter);
  CharFilterFactory factory = (CharFilterFactory) initialize(factoryClazz);
  if (factory != null) {
    // we managed to fully create an instance. check a few more things:
    
    // if it implements MultiTermAware, sanity check its impl
    if (factory instanceof MultiTermAwareComponent) {
      AbstractAnalysisFactory mtc = ((MultiTermAwareComponent) factory).getMultiTermComponent();
      assertNotNull(mtc);
      // its not ok to return a tokenizer or tokenfilter here, this makes no sense
      assertTrue(mtc instanceof CharFilterFactory);
    }
    
    // beast it just a little, it shouldnt throw exceptions:
    // (it should have thrown them in initialize)
    checkRandomData(random(), new FactoryAnalyzer(assertingTokenizer, null, factory), 100, 20, false, false);
  }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
private void doTestTokenizer(String tokenizer) throws IOException {
  TokenizerFactory factory = TokenizerFactory.forName(tokenizer);
  if (initialize(factory)) {
    // we managed to fully create an instance. check a few more things:
    
    // if it implements MultiTermAware, sanity check its impl
    if (factory instanceof MultiTermAwareComponent) {
      AbstractAnalysisFactory mtc = ((MultiTermAwareComponent) factory).getMultiTermComponent();
      assertNotNull(mtc);
      // its not ok to return e.g. a charfilter here: but a tokenizer could wrap a filter around it
      assertFalse(mtc instanceof CharFilterFactory);
    }
    
    // beast it just a little, it shouldnt throw exceptions:
    // (it should have thrown them in initialize)
    checkRandomData(random(), new FactoryAnalyzer(factory, null, null), 100, 20, false, false);
  }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
private void doTestCharFilter(String charfilter) throws IOException {
  CharFilterFactory factory = CharFilterFactory.forName(charfilter);
  if (initialize(factory)) {
    // we managed to fully create an instance. check a few more things:
    
    // if it implements MultiTermAware, sanity check its impl
    if (factory instanceof MultiTermAwareComponent) {
      AbstractAnalysisFactory mtc = ((MultiTermAwareComponent) factory).getMultiTermComponent();
      assertNotNull(mtc);
      // its not ok to return a tokenizer or tokenfilter here, this makes no sense
      assertTrue(mtc instanceof CharFilterFactory);
    }
    
    // beast it just a little, it shouldnt throw exceptions:
    // (it should have thrown them in initialize)
    checkRandomData(random(), new FactoryAnalyzer(assertingTokenizer, null, factory), 100, 20, false, false);
  }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
/**
 * Reloads all Lucene SPI implementations using the new classloader.
 * This method must be called after the new classloader has been created to
 * register the services for use.
 */
static void reloadLuceneSPI(ClassLoader loader) {
    // do NOT change the order of these method calls!

    // Codecs:
    PostingsFormat.reloadPostingsFormats(loader);
    DocValuesFormat.reloadDocValuesFormats(loader);
    Codec.reloadCodecs(loader);
    // Analysis:
    CharFilterFactory.reloadCharFilters(loader);
    TokenFilterFactory.reloadTokenFilters(loader);
    TokenizerFactory.reloadTokenizers(loader);
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
/**
 * This method looks up a class with its fully qualified name (FQN), or a short-name
 * class-simplename, or with a package suffix, assuming "org.apache.lucene.analysis."
 * as the package prefix (e.g. "standard.ClassicTokenizerFactory" ->
 * "org.apache.lucene.analysis.standard.ClassicTokenizerFactory").
 *
 * If className contains a period, the class is first looked up as-is, assuming that it
 * is an FQN.  If this fails, lookup is retried after prepending the Lucene analysis
 * package prefix to the class name.
 *
 * If className does not contain a period, the analysis SPI *Factory.lookupClass()
 * methods are used to find the class.
 *
 * @param className The name or the short name of the class.
 * @param expectedType The superclass className is expected to extend
 * @return the loaded class.
 * @throws ClassNotFoundException if lookup fails
 */
public <T> Class<? extends T> lookupAnalysisClass(String className, Class<T> expectedType)
    throws ClassNotFoundException {
  if (className.contains(".")) {
    try {
      // First, try className == FQN
      return Class.forName(className).asSubclass(expectedType);
    } catch (ClassNotFoundException e) {
      try {
        // Second, retry lookup after prepending the Lucene analysis package prefix
        return Class.forName(LUCENE_ANALYSIS_PACKAGE_PREFIX + className).asSubclass(expectedType);
      } catch (ClassNotFoundException e1) {
        throw new ClassNotFoundException("Can't find class '" + className
                                         + "' or '" + LUCENE_ANALYSIS_PACKAGE_PREFIX + className + "'");
      }
    }
  }
  // No dot - use analysis SPI lookup
  final String analysisComponentName = ANALYSIS_COMPONENT_SUFFIX_PATTERN.matcher(className).replaceFirst("");
  if (CharFilterFactory.class.isAssignableFrom(expectedType)) {
    return CharFilterFactory.lookupClass(analysisComponentName).asSubclass(expectedType);
  } else if (TokenizerFactory.class.isAssignableFrom(expectedType)) {
    return TokenizerFactory.lookupClass(analysisComponentName).asSubclass(expectedType);
  } else if (TokenFilterFactory.class.isAssignableFrom(expectedType)) {
    return TokenFilterFactory.lookupClass(analysisComponentName).asSubclass(expectedType);
  }

  throw new ClassNotFoundException("Can't find class '" + className + "'");
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
public AnalyzerFactory(List<CharFilterFactory> charFilterFactories,
                       TokenizerFactory tokenizerFactory,
                       List<TokenFilterFactory> tokenFilterFactories) {
  this.charFilterFactories = charFilterFactories;
  assert null != tokenizerFactory;
  this.tokenizerFactory = tokenizerFactory;
  this.tokenFilterFactories = tokenFilterFactories;
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
@Override
public String toString() {
  StringBuilder sb = new StringBuilder("AnalyzerFactory(");
  if (null != name) {
    sb.append("name:");
    sb.append(name);
    sb.append(", ");
  }
  if (null != positionIncrementGap) {
    sb.append("positionIncrementGap:");
    sb.append(positionIncrementGap);
    sb.append(", ");
  }
  if (null != offsetGap) {
    sb.append("offsetGap:");
    sb.append(offsetGap);
    sb.append(", ");
  }
  for (CharFilterFactory charFilterFactory: charFilterFactories) {
    sb.append(charFilterFactory);
    sb.append(", ");
  }
  sb.append(tokenizerFactory);
  for (TokenFilterFactory tokenFilterFactory : tokenFilterFactories) {
    sb.append(", ");
    sb.append(tokenFilterFactory);
  }
  sb.append(')');
  return sb.toString();
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
public void test() throws IOException {
  for (String tokenizer : TokenizerFactory.availableTokenizers()) {
    doTestTokenizer(tokenizer);
  }
  
  for (String tokenFilter : TokenFilterFactory.availableTokenFilters()) {
    doTestTokenFilter(tokenFilter);
  }
  
  for (String charFilter : CharFilterFactory.availableCharFilters()) {
    doTestCharFilter(charFilter);
  }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
@Override
public Reader initReader(String fieldName, Reader reader) {
  if (charFilters != null && charFilters.length > 0) {
    Reader cs = reader;
    for (CharFilterFactory charFilter : charFilters) {
      cs = charFilter.create(cs);
    }
    reader = cs;
  }
  return reader;
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
/**
 * Reloads all Lucene SPI implementations using the new classloader.
 * This method must be called after {@link #addToClassLoader(String, FileFilter, boolean)}
 * and {@link #addToClassLoader(String,FileFilter,boolean)} before using
 * this ResourceLoader.
 */
void reloadLuceneSPI() {
  // Codecs:
  PostingsFormat.reloadPostingsFormats(this.classLoader);
  DocValuesFormat.reloadDocValuesFormats(this.classLoader);
  Codec.reloadCodecs(this.classLoader);
  // Analysis:
  CharFilterFactory.reloadCharFilters(this.classLoader);
  TokenFilterFactory.reloadTokenFilters(this.classLoader);
  TokenizerFactory.reloadTokenizers(this.classLoader);
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
public void add(Object current)
{
    if (!(current instanceof MultiTermAwareComponent))
        return;
    AbstractAnalysisFactory newComponent = ((MultiTermAwareComponent) current).getMultiTermComponent();
    if (newComponent instanceof TokenFilterFactory)
    {
        if (filters == null)
        {
            filters = new ArrayList<TokenFilterFactory>(2);
        }
        filters.add((TokenFilterFactory) newComponent);
    }
    else if (newComponent instanceof TokenizerFactory)
    {
        tokenizer = (TokenizerFactory) newComponent;
    }
    else if (newComponent instanceof CharFilterFactory)
    {
        if (charFilters == null)
        {
            charFilters = new ArrayList<CharFilterFactory>(1);
        }
        charFilters.add((CharFilterFactory) newComponent);

    }
    else
    {
        throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Unknown analysis component from MultiTermAwareComponent: " + newComponent);
    }
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
@Override
protected void init(IndexSchema schema, Map<String, String> args) {
  super.init(schema, args);
  String p = args.remove("precisionStep");
  if (p != null) {
     precisionStepArg = Integer.parseInt(p);
  }
  // normalize the precisionStep
  precisionStep = precisionStepArg;
  if (precisionStep<=0 || precisionStep>=64) precisionStep=Integer.MAX_VALUE;
  String t = args.remove("type");

  if (t != null) {
    try {
      type = TrieTypes.valueOf(t.toUpperCase(Locale.ROOT));
    } catch (IllegalArgumentException e) {
      throw new SolrException(SolrException.ErrorCode.SERVER_ERROR,
              "Invalid type specified in schema.xml for field: " + args.get("name"), e);
    }
  }

  CharFilterFactory[] filterFactories = new CharFilterFactory[0];
  TokenFilterFactory[] tokenFilterFactories = new TokenFilterFactory[0];
  analyzer = new TokenizerChain(filterFactories, new TrieTokenizerFactory(type, precisionStep), tokenFilterFactories);
  // for query time we only need one token, so we use the biggest possible precisionStep:
  queryAnalyzer = new TokenizerChain(filterFactories, new TrieTokenizerFactory(type, Integer.MAX_VALUE), tokenFilterFactories);
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
/**
 * Reloads all Lucene SPI implementations using the new classloader.
 * This method must be called after {@link #addToClassLoader(String)}
 * and {@link #addToClassLoader(String,FileFilter)} before using
 * this ResourceLoader.
 */
void reloadLuceneSPI() {
  // Codecs:
  PostingsFormat.reloadPostingsFormats(this.classLoader);
  DocValuesFormat.reloadDocValuesFormats(this.classLoader);
  Codec.reloadCodecs(this.classLoader);
  // Analysis:
  CharFilterFactory.reloadCharFilters(this.classLoader);
  TokenFilterFactory.reloadTokenFilters(this.classLoader);
  TokenizerFactory.reloadTokenizers(this.classLoader);
}
 

import org.apache.lucene.analysis.util.CharFilterFactory; //导入依赖的package包/类
public void testCharFilters() {
    Set<String> missing = new TreeSet<String>(org.apache.lucene.analysis.util.CharFilterFactory.availableCharFilters());
    missing.removeAll(getCharFilters().keySet());
    assertTrue("new charfilters found, please update KNOWN_CHARFILTERS: " + missing.toString(), missing.isEmpty());
}