/*
* Licensed to Crate under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial
* agreement.
*/
package io.crate.operation.reference.sys.node.local;
import io.crate.metadata.ReferenceImplementation;
import io.crate.monitor.ExtendedProcessCpuStats;
import io.crate.operation.reference.NestedObjectExpression;
import org.elasticsearch.monitor.process.ProcessStats;
class NodeProcessExpression extends NestedObjectExpression {
private static final String OPEN_FILE_DESCRIPTORS = "open_file_descriptors";
private static final String MAX_OPEN_FILE_DESCRIPTORS = "max_open_file_descriptors";
private static final String PROBE_TIMESTAMP = "probe_timestamp";
private static final String CPU = "cpu";
NodeProcessExpression(ProcessStats processStats, ExtendedProcessCpuStats cpuStats) {
addChildImplementations(processStats, cpuStats);
}
private void addChildImplementations(final ProcessStats processStats, ExtendedProcessCpuStats cpuStats) {
childImplementations.put(OPEN_FILE_DESCRIPTORS, new ReferenceImplementation<Long>() {
@Override
public Long value() {
if (processStats != null) {
return processStats.getOpenFileDescriptors();
} else {
return -1L;
}
}
});
childImplementations.put(MAX_OPEN_FILE_DESCRIPTORS, new ReferenceImplementation<Long>() {
@Override
public Long value() {
if (processStats != null) {
return processStats.getMaxFileDescriptors();
} else {
return -1L;
}
}
});
childImplementations.put(PROBE_TIMESTAMP, new ReferenceImplementation<Long>() {
@Override
public Long value() {
if (processStats != null) {
return processStats.getTimestamp();
} else {
return -1L;
}
}
});
childImplementations.put(CPU, new NodeProcessCpuExpression(cpuStats));
}
}