/*
 * Copyright 2002-2015 the original author or authors.
 *
 * 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 org.springframework.integration.support.management;

import org.springframework.context.Lifecycle;
import org.springframework.jmx.export.annotation.ManagedAttribute;
import org.springframework.jmx.export.annotation.ManagedOperation;

/**
 * A {@link MessageHandlerMetrics} that exposes in addition the {@link Lifecycle} interface. The lifecycle methods can
 * be used to stop and start polling endpoints, for instance, in a live system.
 *
 * @author Dave Syer
 * @author Gary Russell
 * @since 2.0
 */
@IntegrationManagedResource
public class LifecycleMessageHandlerMetrics implements MessageHandlerMetrics, Lifecycle,
		ConfigurableMetricsAware<AbstractMessageHandlerMetrics> {

	private final Lifecycle lifecycle;

	protected final MessageHandlerMetrics delegate;


	public LifecycleMessageHandlerMetrics(Lifecycle lifecycle, MessageHandlerMetrics delegate) {
		this.lifecycle = lifecycle;
		this.delegate = delegate;
	}

	public MessageHandlerMetrics getDelegate() {
		return this.delegate;
	}

	@SuppressWarnings("unchecked")
	@Override
	public void configureMetrics(AbstractMessageHandlerMetrics metrics) {
		if (this.delegate instanceof ConfigurableMetricsAware) {
			((ConfigurableMetricsAware<AbstractMessageHandlerMetrics>) this.delegate).configureMetrics(metrics);
		}
	}

	@Override
	@ManagedAttribute
	public boolean isRunning() {
		return this.lifecycle.isRunning();
	}

	@Override
	@ManagedOperation
	public void start() {
		this.lifecycle.start();
	}

	@Override
	@ManagedOperation
	public void stop() {
		this.lifecycle.stop();
	}

	@Override
	public void reset() {
		this.delegate.reset();
	}

	@Override
	public int getErrorCount() {
		return this.delegate.getErrorCount();
	}

	@Override
	public int getHandleCount() {
		return this.delegate.getHandleCount();
	}

	@Override
	public double getMaxDuration() {
		return this.delegate.getMaxDuration();
	}

	@Override
	public double getMeanDuration() {
		return this.delegate.getMeanDuration();
	}

	@Override
	public double getMinDuration() {
		return this.delegate.getMinDuration();
	}

	@Override
	public double getStandardDeviationDuration() {
		return this.delegate.getStandardDeviationDuration();
	}

	@Override
	public Statistics getDuration() {
		return this.delegate.getDuration();
	}

	@Override
	public String getManagedName() {
		return this.delegate.getManagedName();
	}

	@Override
	public String getManagedType() {
		return this.delegate.getManagedType();
	}

	@Override
	public int getActiveCount() {
		return this.delegate.getActiveCount();
	}

	@Override
	public long getHandleCountLong() {
		return this.delegate.getHandleCountLong();
	}

	@Override
	public long getErrorCountLong() {
		return this.delegate.getErrorCountLong();
	}

	@Override
	public long getActiveCountLong() {
		return this.delegate.getActiveCountLong();
	}

	@Override
	public void setStatsEnabled(boolean statsEnabled) {
		this.delegate.setStatsEnabled(statsEnabled);
	}

	@Override
	public void setCountsEnabled(boolean countsEnabled) {
		this.delegate.setCountsEnabled(countsEnabled);
	}

	@Override
	public boolean isStatsEnabled() {
		return this.delegate.isStatsEnabled();
	}

	@Override
	public boolean isCountsEnabled() {
		return this.delegate.isCountsEnabled();
	}

	@Override
	public void setLoggingEnabled(boolean enabled) {
		this.delegate.setLoggingEnabled(enabled);
	}

	@Override
	public boolean isLoggingEnabled() {
		return this.delegate.isLoggingEnabled();
	}

	@Override
	public void setManagedName(String name) {
		this.delegate.setManagedName(name);
	}

	@Override
	public void setManagedType(String source) {
		this.delegate.setManagedType(source);
	}

}