Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/util/BaseLogger.java

+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed 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 com.google.ipc.invalidation.util;
+
+import java.util.logging.Level;
+
+/**
+ * A basic formatting logger interface.
+ *
+ */
+public interface BaseLogger {
+  /**
+   * Logs a message.
+   *
+   * @param level the level at which the message should be logged (e.g., {@code INFO})
+   * @param template the string to log, optionally containing %s sequences
+   * @param args variables to substitute for %s sequences in {@code template}
+   */
+  void log(Level level, String template, Object... args);
+
+  /**
+   * Returns true iff statements at {@code level} are not being suppressed.
+   */
+  boolean isLoggable(Level level);
+
+  /**
+   * Logs a message at the SEVERE level.
+   * See specs of {@code #log} for the parameters.
+   */
+  void severe(String template, Object...args);
+
+  /**
+   * Logs a message at the WARNING level.
+   * See specs of {@code #log} for the parameters.
+   */
+  void warning(String template, Object...args);
+
+  /**
+   * Logs a message at the INFO level.
+   * See specs of {@code #log} for the parameters.
+   */
+  void info(String template, Object...args);
+
+  /**
+   * Logs a message at the FINE level.
+   * See specs of {@code #log} for the parameters.
+   */
+  void fine(String template, Object...args);
+}