/*
* Copyright 2011 Proofpoint, 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.proofpoint.event.monitor;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import javax.annotation.Nullable;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import java.net.URI;
import java.util.Map;
import java.util.Set;
@Path("/v1/monitor")
public class MonitorsResource
{
private final Map<String, Monitor> monitors;
@Inject
public MonitorsResource(Set<Monitor> monitors)
{
ImmutableMap.Builder<String, Monitor> monitorBuilder = ImmutableMap.builder();
for (Monitor monitor : monitors) {
monitorBuilder.put(monitor.getName(), monitor);
}
this.monitors = monitorBuilder.build();
}
@GET
@Produces(MediaType.APPLICATION_JSON)
public Iterable<MonitorRepresentation> getAll(@Context final UriInfo uriInfo)
{
return Iterables.transform(monitors.values(), new Function<Monitor, MonitorRepresentation>()
{
@Override
public MonitorRepresentation apply(@Nullable Monitor monitor)
{
return MonitorRepresentation.of(monitor, uriInfo);
}
});
}
@GET
@Path("/{monitor}")
@Produces(MediaType.APPLICATION_JSON)
public Response getMonitorRepresentation(@PathParam("monitor") final String monitorName, @Context UriInfo uriInfo)
{
Monitor monitor = monitors.get(monitorName);
if (monitor == null) {
return Response.status(Response.Status.NOT_FOUND).build();
}
return Response.ok(MonitorRepresentation.of(monitor, uriInfo)).build();
}
@VisibleForTesting
static class MonitorRepresentation
{
private final String name;
private final boolean ok;
private final Double minimumOneMinuteRate;
private final Double maximumOneMinuteRate;
private final double oneMinuteRate;
private final double fiveMinuteRate;
private final double fifteenMinuteRate;
private final URI self;
static MonitorRepresentation of(Monitor monitor, UriInfo context)
{
Preconditions.checkNotNull(monitor, "Monitor is null");
CounterStat stats = Preconditions.checkNotNull(monitor.getEvents(), "monitor.getEvents() is null");
return new MonitorRepresentation(monitor.getName(), !monitor.isFailed(), monitor.getMinimumOneMinuteRate(), monitor.getMaximumOneMinuteRate(), stats.getOneMinuteRate(), stats.getFiveMinuteRate(), stats.getFiveMinuteRate(), selfUri(monitor, context));
}
private MonitorRepresentation(String name, boolean ok, Double minimumOneMinuteRate, Double maximumOneMinuteRate, double oneMinuteRate, double fiveMinuteRate, double fifteenMinuteRate, URI self)
{
this.name = name;
this.ok = ok;
this.minimumOneMinuteRate = minimumOneMinuteRate;
this.maximumOneMinuteRate = maximumOneMinuteRate;
this.oneMinuteRate = oneMinuteRate;
this.fiveMinuteRate = fiveMinuteRate;
this.fifteenMinuteRate = fifteenMinuteRate;
this.self = self;
}
@JsonProperty
public String getName()
{
return name;
}
@JsonProperty
public boolean isOk()
{
return ok;
}
@JsonProperty
public Double getMinimumOneMinuteRate()
{
return minimumOneMinuteRate;
}
@JsonProperty
public Double getMaximumOneMinuteRate()
{
return maximumOneMinuteRate;
}
@JsonProperty
public double getOneMinuteRate()
{
return oneMinuteRate;
}
@JsonProperty
public double getFiveMinuteRate()
{
return fiveMinuteRate;
}
@JsonProperty
public double getFifteenMinuteRate()
{
return fifteenMinuteRate;
}
@JsonProperty
public URI getSelf()
{
return self;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
MonitorRepresentation that = (MonitorRepresentation) o;
if (Double.compare(that.fifteenMinuteRate, fifteenMinuteRate) != 0) {
return false;
}
if (Double.compare(that.fiveMinuteRate, fiveMinuteRate) != 0) {
return false;
}
if (ok != that.ok) {
return false;
}
if (Double.compare(that.oneMinuteRate, oneMinuteRate) != 0) {
return false;
}
if (maximumOneMinuteRate != null ? !maximumOneMinuteRate.equals(that.maximumOneMinuteRate) : that.maximumOneMinuteRate != null) {
return false;
}
if (minimumOneMinuteRate != null ? !minimumOneMinuteRate.equals(that.minimumOneMinuteRate) : that.minimumOneMinuteRate != null) {
return false;
}
if (name != null ? !name.equals(that.name) : that.name != null) {
return false;
}
if (self != null ? !self.equals(that.self) : that.self != null) {
return false;
}
return true;
}
@Override
public int hashCode()
{
int result;
long temp;
result = name != null ? name.hashCode() : 0;
result = 31 * result + (ok ? 1 : 0);
result = 31 * result + (minimumOneMinuteRate != null ? minimumOneMinuteRate.hashCode() : 0);
result = 31 * result + (maximumOneMinuteRate != null ? maximumOneMinuteRate.hashCode() : 0);
temp = oneMinuteRate != +0.0d ? Double.doubleToLongBits(oneMinuteRate) : 0L;
result = 31 * result + (int) (temp ^ (temp >>> 32));
temp = fiveMinuteRate != +0.0d ? Double.doubleToLongBits(fiveMinuteRate) : 0L;
result = 31 * result + (int) (temp ^ (temp >>> 32));
temp = fifteenMinuteRate != +0.0d ? Double.doubleToLongBits(fifteenMinuteRate) : 0L;
result = 31 * result + (int) (temp ^ (temp >>> 32));
result = 31 * result + (self != null ? self.hashCode() : 0);
return result;
}
}
private static URI selfUri(Monitor monitor, UriInfo uriInfo)
{
return uriInfo.getBaseUriBuilder().path("/v1/monitor/{monitor}").build(monitor.getName());
}
}