org.apache.jackrabbit.oak.plugins.index.MetricsFormatter Maven / Gradle / Ivy
/*
* 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.jackrabbit.oak.plugins.index;
import org.apache.jackrabbit.guava.common.base.Preconditions;
import org.apache.jackrabbit.oak.commons.json.JsopBuilder;
public class MetricsFormatter {
private final JsopBuilder jsopBuilder = new JsopBuilder();
private boolean isWritable = true;
public static MetricsFormatter newBuilder() {
return new MetricsFormatter();
}
private MetricsFormatter() {
jsopBuilder.object();
}
public MetricsFormatter add(String key, String value) {
Preconditions.checkState(isWritable, "Formatter already built, in read-only mode");
jsopBuilder.key(key).value(value);
return this;
}
public MetricsFormatter add(String key, int value) {
Preconditions.checkState(isWritable, "Formatter already built, in read-only mode");
jsopBuilder.key(key).value(value);
return this;
}
public MetricsFormatter add(String key, long value) {
Preconditions.checkState(isWritable, "Formatter already built, in read-only mode");
jsopBuilder.key(key).value(value);
return this;
}
public MetricsFormatter add(String key, boolean value) {
Preconditions.checkState(isWritable, "Formatter already built, in read-only mode");
jsopBuilder.key(key).value(value);
return this;
}
public String build() {
if (isWritable){
jsopBuilder.endObject();
isWritable = false;
}
return jsopBuilder.toString();
}
}