/*
* 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.brooklyn.core.mgmt.usage;
import java.util.List;
import java.util.Set;
import org.apache.brooklyn.api.entity.Application;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.config.ConfigKey;
import org.apache.brooklyn.core.config.ConfigKeys;
import org.apache.brooklyn.core.entity.lifecycle.Lifecycle;
import org.apache.brooklyn.util.time.Duration;
import com.google.common.annotations.Beta;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import com.google.common.reflect.TypeToken;
@Beta
public interface UsageManager {
@SuppressWarnings("serial")
public static final ConfigKey<List<UsageListener>> USAGE_LISTENERS = ConfigKeys.newConfigKey(
new TypeToken<List<UsageListener>>() {},
"brooklyn.usageManager.listeners", "Optional usage listeners (i.e. for metering)",
ImmutableList.<UsageListener>of());
public static final ConfigKey<Duration> USAGE_LISTENER_TERMINATION_TIMEOUT = ConfigKeys.newConfigKey(
Duration.class,
"brooklyn.usageManager.listeners.timeout",
"Timeout on termination, to wait for queue of usage listener events to be processed",
Duration.TEN_SECONDS);
/**
* Adds this application event to the usage record for the given app (creating the usage
* record if one does not already exist).
*/
void recordApplicationEvent(Application app, Lifecycle state);
/**
* Adds this location event to the usage record for the given location (creating the usage
* record if one does not already exist).
*/
void recordLocationEvent(Location loc, Lifecycle state);
/**
* Returns the usage info for the location with the given id, or null if unknown.
*/
LocationUsage getLocationUsage(String locationId);
/**
* Returns the usage info that matches the given predicate.
* For example, could be used to find locations used within a given time period.
*/
Set<LocationUsage> getLocationUsage(Predicate<? super LocationUsage> filter);
/**
* Returns the usage info for the application with the given id, or null if unknown.
*/
ApplicationUsage getApplicationUsage(String appId);
/**
* Returns the usage info that matches the given predicate.
* For example, could be used to find applications used within a given time period.
*/
Set<ApplicationUsage> getApplicationUsage(Predicate<? super ApplicationUsage> filter);
/**
* Adds the given listener, to be notified on recording of application/location events.
* The listener notifications may be asynchronous.
*
* As of 0.7.0, the listener is not persisted so will be lost on restart/rebind. This
* behaviour may change in a subsequent release.
*/
void addUsageListener(UsageListener listener);
/**
* Removes the given listener.
*/
void removeUsageListener(UsageListener listener);
}