/**
* 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.hadoop.metrics2.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.hadoop.metrics2.Metric;
import org.apache.hadoop.metrics2.MetricsFilter;
import org.apache.hadoop.metrics2.MetricsRecordBuilder;
import org.apache.hadoop.metrics2.MetricsTag;
import static org.apache.hadoop.metrics2.lib.MetricsRegistry.*;
class MetricsRecordBuilderImpl extends MetricsRecordBuilder {
private final long timestamp;
private final String name;
private final List<Metric> metrics;
private final List<MetricsTag> tags;
private final MetricsFilter recordFilter, metricFilter;
private final boolean acceptable;
MetricsRecordBuilderImpl(String name, MetricsFilter rf, MetricsFilter mf,
boolean acceptable) {
timestamp = System.currentTimeMillis();
this.name = name;
metrics = new ArrayList<Metric>();
tags = new ArrayList<MetricsTag>();
recordFilter = rf;
metricFilter = mf;
this.acceptable = acceptable;
}
@Override
public MetricsRecordBuilder tag(String name, String description,
String value) {
if (acceptable) {
tags.add(new MetricsTag(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addCounter(String name, String description,
int value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricCounterInt(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addCounter(String name, String description,
long value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricCounterLong(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addGauge(String name, String description,
int value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricGaugeInt(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addGauge(String name, String description,
long value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricGaugeLong(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addGauge(String name, String description,
float value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricGaugeFloat(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder addGauge(String name, String description,
double value) {
if (acceptable && (metricFilter == null || metricFilter.accepts(name))) {
metrics.add(new MetricGaugeDouble(name, description, value));
}
return this;
}
@Override
public MetricsRecordBuilder add(MetricsTag tag) {
tags.add(tag);
return this;
}
@Override
public MetricsRecordBuilder add(Metric metric) {
metrics.add(metric);
return this;
}
@Override
public MetricsRecordBuilder setContext(String value) {
return tag(CONTEXT_KEY, CONTEXT_DESC, value);
}
public MetricsRecordImpl getRecord() {
if (acceptable && (recordFilter == null || recordFilter.accepts(tags))) {
return new MetricsRecordImpl(name, timestamp, tags(), metrics());
}
return null;
}
List<MetricsTag> tags() {
return Collections.unmodifiableList(tags);
}
List<Metric> metrics() {
return Collections.unmodifiableList(metrics);
}
}