/*
    * 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.logging.log4j.core.appender.rolling;
  
  import org.apache.logging.log4j.core.LogEvent;
  import org.apache.logging.log4j.core.config.plugins.Plugin;
  import org.apache.logging.log4j.core.config.plugins.PluginElement;
  import org.apache.logging.log4j.core.config.plugins.PluginFactory;
  
  /**
   * Triggering policy that wraps other policies.
   */
  @Plugin(name = "Policies", category = "Core", printObject = true)
  public final class CompositeTriggeringPolicy implements TriggeringPolicy {
  
      private final TriggeringPolicy[] policies;
  
      private CompositeTriggeringPolicy(final TriggeringPolicy... policies) {
          this.policies = policies;
      }
  
      /**
       * Initializes the policy.
       * @param manager The RollingFileManager.
       */
      @Override
      public void initialize(final RollingFileManager manager) {
          for (final TriggeringPolicy policy : policies) {
              policy.initialize(manager);
          }
      }
  
      /**
       * Determines if a rollover should occur.
       * @param event A reference to the currently event.
       * @return true if a rollover should occur, false otherwise.
       */
      @Override
      public boolean isTriggeringEvent(final LogEvent event) {
          for (final TriggeringPolicy policy : policies) {
              if (policy.isTriggeringEvent(event)) {
                  return true;
              }
          }
          return false;
      }
  
      @Override
      public String toString() {
          final StringBuilder sb = new StringBuilder("CompositeTriggeringPolicy{");
          boolean first = true;
          for (final TriggeringPolicy policy : policies) {
              if (!first) {
                  sb.append(", ");
              }
              sb.append(policy.toString());
              first = false;
          }
          sb.append('}');
          return sb.toString();
      }
  
      /**
       * Create a CompositeTriggeringPolicy.
       * @param policies The triggering policies.
       * @return A CompositeTriggeringPolicy.
       */
      @PluginFactory
      public static CompositeTriggeringPolicy createPolicy(
                                                  @PluginElement("Policies") final TriggeringPolicy... policies) {
          return new CompositeTriggeringPolicy(policies);
      }
  }