Class CacheBuilderSpec

output/java_guava/1.4.19/CacheBuilderSpec.java:78–471

A specification of a CacheBuilder configuration. CacheBuilderSpec supports parsing configuration off of a string, which makes it especially useful for command-line configuration of a CacheBuilder. The string syntax is a series of comma-separated keys or key-value pair

@GwtIncompatible
public final class CacheBuilderSpec {
  /** Parses a single value. */
  private interface ValueParser {

    void parse(CacheBuilderSpec spec, String key, @Nullable String value);
  }

  /** Splits each key-value pair. */

  private static final Splitter KEYS_SPLITTER = Splitter.on(',').trimResults();

  /** Splits the key from the value. */
  private static final Splitter KEY_VALUE_SPLITTER = Splitter.on('=').trimResults();

  /** Map of names to ValueParser. */
  private static final ImmutableMap<String, ValueParser> VALUE_PARSERS = ImmutableMap.<String, ValueParser>builder().put("initialCapacity", new InitialCapacityParser()).put("maximumSize", new MaximumSizeParser()).put("maximumWeight", new MaximumWeightParser()).put("concurrencyLevel", new ConcurrencyLevelParser()).put("weakKeys", new KeyStrengthParser(Strength.WEAK)).put("softValues", new ValueStrengthParser(Strength.SOFT)).put("weakValues", new ValueStrengthParser(Strength.WEAK)).put("recordStats", new RecordStatsParser()).put("expireAfterAccess", new AccessDurationParser()).put("expireAfterWrite", new WriteDurationParser()).put("refreshAfterWrite", new RefreshDurationParser()).put("refreshInterval", new RefreshDurationParser()).build();

  @VisibleForTesting Integer initialCapacity;

  @VisibleForTesting Long maximumSize;

  @VisibleForTesting Long maximumWeight;

  @VisibleForTesting Integer concurrencyLevel;

  @VisibleForTesting Strength keyStrength;

  @VisibleForTesting Strength valueStrength;

  @VisibleForTesting Boolean recordStats;

  @VisibleForTesting long writeExpirationDuration;

  @VisibleForTesting TimeUnit writeExpirationTimeUnit;

  @VisibleForTesting long accessExpirationDuration;

  @VisibleForTesting TimeUnit accessExpirationTimeUnit;

  @VisibleForTesting long refreshDuration;

  @VisibleForTesting TimeUnit refreshTimeUnit;
  /** Specification; used for toParseableString(). */
  private final String specification;
  private CacheBuilderSpec(String specification) {
    this.specification = specification;
  }

  /**
   * Creates a CacheBuilderSpec from a string.
   *
   * @param cacheBuilderSpecification the string form
   */


  public static CacheBuilderSpec parse(String cacheBuilderSpecification) {
    CacheBuilderSpec spec = new CacheBuilderSpec(cacheBuilderSpecification);