/*
* Copyright 2012-2017 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.boot.actuate.health;
import java.io.File;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A {@link HealthIndicator} that checks available disk space and reports a status of
* {@link Status#DOWN} when it drops below a configurable threshold.
*
* @author Mattias Severson
* @author Andy Wilkinson
* @since 1.2.0
*/
public class DiskSpaceHealthIndicator extends AbstractHealthIndicator {
private static final Log logger = LogFactory.getLog(DiskSpaceHealthIndicator.class);
private final DiskSpaceHealthIndicatorProperties properties;
/**
* Create a new {@code DiskSpaceHealthIndicator}.
* @param properties the disk space properties
*/
public DiskSpaceHealthIndicator(DiskSpaceHealthIndicatorProperties properties) {
this.properties = properties;
}
@Override
protected void doHealthCheck(Health.Builder builder) throws Exception {
File path = this.properties.getPath();
long diskFreeInBytes = path.getFreeSpace();
if (diskFreeInBytes >= this.properties.getThreshold()) {
builder.up();
}
else {
logger.warn(String.format(
"Free disk space below threshold. "
+ "Available: %d bytes (threshold: %d bytes)",
diskFreeInBytes, this.properties.getThreshold()));
builder.down();
}
builder.withDetail("total", path.getTotalSpace())
.withDetail("free", diskFreeInBytes)
.withDetail("threshold", this.properties.getThreshold());
}
}