How to use

getCacheManager

method

in

org.thymeleaf.IEngineConfiguration

/**
 * <p>
 *   Returns the cache manager in effect. This manager is in charge of providing
 *   the various caches needed by the system during its process.
 * </p>
 * <p>
 *   By default, an instance of {@link org.thymeleaf.cache.StandardCacheManager}
 *   is set.
 * </p>
 *
 * @return the cache manager
 */
public final ICacheManager getCacheManager() {
  if (this.initialized) {
    return this.configuration.getCacheManager();
  }
  return this.cacheManager;
}

static <V> void removeFromCache(final IEngineConfiguration configuration, final String input, final String type) {
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    final ICache<ExpressionCacheKey,Object> cache = cacheManager.getExpressionCache();
    if (cache != null) {
      cache.clearKey(new ExpressionCacheKey(type,input));
    }
  }
}

static Object getFromCache(final IEngineConfiguration configuration, final String input, final String type) {
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    final ICache<ExpressionCacheKey,Object> cache = cacheManager.getExpressionCache();
    if (cache != null) {
      return cache.get(new ExpressionCacheKey(type,input));
    }
  }
  return null;
}

static <V> void putIntoCache(final IEngineConfiguration configuration, final String input, final V value, final String type) {
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    final ICache<ExpressionCacheKey,Object> cache = cacheManager.getExpressionCache();
    if (cache != null) {
      cache.put(new ExpressionCacheKey(type,input), value);
    }
  }
}

  throws Exception {
final ICacheManager cacheManager = configuration.getCacheManager();
final ICache<ExpressionCacheKey, Object> expressionCache = (cacheManager == null? null : cacheManager.getExpressionCache());

final ICacheManager cacheManager = configuration.getCacheManager();
final Set<ITemplateResolver> templateResolvers = configuration.getTemplateResolvers();
final Set<IMessageResolver> messageResolvers = configuration.getMessageResolvers();

/**
 * <p>
 *   This constructor should only be called directly for <strong>testing purposes</strong>.
 * </p>
 *
 * @param configuration the engine configuration
 */
public TemplateManager(final IEngineConfiguration configuration) {
  
  super();
  Validate.notNull(configuration, "Configuration cannot be null");
  this.configuration = configuration;
  final ICacheManager cacheManager = this.configuration.getCacheManager();
  if (cacheManager == null) {
    this.templateCache = null;
  } else {
    this.templateCache = cacheManager.getTemplateCache();
  }
  final boolean standardDialectPresent = this.configuration.isStandardDialectPresent();
  // TODO Make these parser implementations configurable: one parser per template mode, then make default implementations extensible/configurable (e.g. AttoParser config)
  this.htmlParser = new HTMLTemplateParser(DEFAULT_PARSER_POOL_SIZE,DEFAULT_PARSER_BLOCK_SIZE);
  this.xmlParser = new XMLTemplateParser(DEFAULT_PARSER_POOL_SIZE, DEFAULT_PARSER_BLOCK_SIZE);
  this.textParser = new TextTemplateParser(DEFAULT_PARSER_POOL_SIZE, DEFAULT_PARSER_BLOCK_SIZE, standardDialectPresent);
  this.javascriptParser = new JavaScriptTemplateParser(DEFAULT_PARSER_POOL_SIZE, DEFAULT_PARSER_BLOCK_SIZE, standardDialectPresent);
  this.cssParser = new CSSTemplateParser(DEFAULT_PARSER_POOL_SIZE, DEFAULT_PARSER_BLOCK_SIZE, standardDialectPresent);
  this.rawParser = new RawTemplateParser(DEFAULT_PARSER_POOL_SIZE, DEFAULT_PARSER_BLOCK_SIZE);
}

private static ComputedSpelExpression getExpression(final IEngineConfiguration configuration, final String spelExpression) {
  ComputedSpelExpression exp = null;
  ICache<ExpressionCacheKey, Object> cache = null;
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    cache = cacheManager.getExpressionCache();
    if (cache != null) {
      exp = (ComputedSpelExpression) cache.get(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression));
    }
  }
  if (exp == null) {
    final SpelExpression spelExpressionObject = (SpelExpression) PARSER.parseExpression(spelExpression);
    final boolean mightNeedExpressionObjects = StandardExpressionUtils.mightNeedExpressionObjects(spelExpression);
    exp = new ComputedSpelExpression(spelExpressionObject, mightNeedExpressionObjects);
    if (cache != null && null != exp) {
      cache.put(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression), exp);
    }
  }
  return exp;
  
}

private static ComputedSpelExpression getExpression(final IEngineConfiguration configuration, final String spelExpression) {
  ComputedSpelExpression exp = null;
  ICache<ExpressionCacheKey, Object> cache = null;
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    cache = cacheManager.getExpressionCache();
    if (cache != null) {
      exp = (ComputedSpelExpression) cache.get(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression));
    }
  }
  if (exp == null) {
    final SpelExpression spelExpressionObject = (SpelExpression) PARSER.parseExpression(spelExpression);
    final boolean mightNeedExpressionObjects = StandardExpressionUtils.mightNeedExpressionObjects(spelExpression);
    exp = new ComputedSpelExpression(spelExpressionObject, mightNeedExpressionObjects);
    if (cache != null && null != exp) {
      cache.put(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression), exp);
    }
  }
  return exp;
  
}

private static ComputedSpelExpression getExpression(final IEngineConfiguration configuration, final String spelExpression) {
  ComputedSpelExpression exp = null;
  ICache<ExpressionCacheKey, Object> cache = null;
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    cache = cacheManager.getExpressionCache();
    if (cache != null) {
      exp = (ComputedSpelExpression) cache.get(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression));
    }
  }
  if (exp == null) {
    // SELECT THE ADEQUATE SpEL EXPRESSION PARSER depending on whether SpEL compilation is enabled
    final SpelExpressionParser spelExpressionParser =
        PARSER_WITH_COMPILED_SPEL != null && SpringStandardExpressions.isSpringELCompilerEnabled(configuration)?
            PARSER_WITH_COMPILED_SPEL : PARSER_WITHOUT_COMPILED_SPEL;
    final SpelExpression spelExpressionObject = (SpelExpression) spelExpressionParser.parseExpression(spelExpression);
    final boolean mightNeedExpressionObjects = StandardExpressionUtils.mightNeedExpressionObjects(spelExpression);
    exp = new ComputedSpelExpression(spelExpressionObject, mightNeedExpressionObjects);
    if (cache != null && null != exp) {
      cache.put(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression), exp);
    }
  }
  return exp;
  
}

private static ComputedSpelExpression getExpression(final IEngineConfiguration configuration, final String spelExpression) {
  ComputedSpelExpression exp = null;
  ICache<ExpressionCacheKey, Object> cache = null;
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    cache = cacheManager.getExpressionCache();
    if (cache != null) {
      exp = (ComputedSpelExpression) cache.get(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression));
    }
  }
  if (exp == null) {
    // SELECT THE ADEQUATE SpEL EXPRESSION PARSER depending on whether SpEL compilation is enabled
    final SpelExpressionParser spelExpressionParser =
        PARSER_WITH_COMPILED_SPEL != null && SpringStandardExpressions.isSpringELCompilerEnabled(configuration)?
            PARSER_WITH_COMPILED_SPEL : PARSER_WITHOUT_COMPILED_SPEL;
    final SpelExpression spelExpressionObject = (SpelExpression) spelExpressionParser.parseExpression(spelExpression);
    final boolean mightNeedExpressionObjects = StandardExpressionUtils.mightNeedExpressionObjects(spelExpression);
    exp = new ComputedSpelExpression(spelExpressionObject, mightNeedExpressionObjects);
    if (cache != null && null != exp) {
      cache.put(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression), exp);
    }
  }
  return exp;
  
}

private static ComputedSpelExpression getExpression(final IEngineConfiguration configuration, final String spelExpression) {
  ComputedSpelExpression exp = null;
  ICache<ExpressionCacheKey, Object> cache = null;
  final ICacheManager cacheManager = configuration.getCacheManager();
  if (cacheManager != null) {
    cache = cacheManager.getExpressionCache();
    if (cache != null) {
      exp = (ComputedSpelExpression) cache.get(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression));
    }
  }
  if (exp == null) {
    // SELECT THE ADEQUATE SpEL EXPRESSION PARSER depending on whether SpEL compilation is enabled
    final SpelExpressionParser spelExpressionParser =
        PARSER_WITH_COMPILED_SPEL != null && SpringStandardExpressions.isSpringELCompilerEnabled(configuration)?
            PARSER_WITH_COMPILED_SPEL : PARSER_WITHOUT_COMPILED_SPEL;
    final SpelExpression spelExpressionObject = (SpelExpression) spelExpressionParser.parseExpression(spelExpression);
    final boolean mightNeedExpressionObjects = StandardExpressionUtils.mightNeedExpressionObjects(spelExpression);
    exp = new ComputedSpelExpression(spelExpressionObject, mightNeedExpressionObjects);
    if (cache != null && null != exp) {
      cache.put(new ExpressionCacheKey(EXPRESSION_CACHE_TYPE_SPEL,spelExpression), exp);
    }
  }
  return exp;
  
}