/**
 * 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.activemq.usage;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.BrokerService;

public class StoreUsageLimitsTest extends EmbeddedBrokerTestSupport {

   final int WAIT_TIME_MILLS = 20 * 1000;
   private static final String limitsLogLevel = "warn";

   @Override
   protected BrokerService createBroker() throws Exception {
      BrokerService broker = super.createBroker();
      broker.getSystemUsage().getMemoryUsage().setLimit(Long.MAX_VALUE);
      broker.getSystemUsage().setCheckLimitsLogLevel(limitsLogLevel);
      broker.deleteAllMessages();
      return broker;
   }

   @Override
   protected boolean isPersistent() {
      return true;
   }

   public void testCheckLimitsLogLevel() throws Exception {

      File file = new File("target/activemq-test.log");
      if (!file.exists()) {
         fail("target/activemq-test.log was not created.");
      }

      BufferedReader br = null;
      boolean foundUsage = false;

      try {
         br = new BufferedReader(new InputStreamReader(new FileInputStream(file), Charset.forName("UTF-8")));
         String line = null;
         while ((line = br.readLine()) != null) {
            if (line.contains(new String(Long.toString(Long.MAX_VALUE / (1024 * 1024)))) && line.contains(limitsLogLevel.toUpperCase())) {
               foundUsage = true;
            }
         }
      }
      catch (Exception e) {
         fail(e.getMessage());
      }
      finally {
         br.close();
      }

      if (!foundUsage)
         fail("checkLimitsLogLevel message did not write to log target/activemq-test.log");
   }
}
