/*
* Copyright 2016 KairosDB 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.kairosdb.core.groupby;
import org.json.JSONException;
import org.json.JSONWriter;
import org.kairosdb.core.formatter.FormatterException;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;
import static com.google.common.base.Preconditions.checkNotNull;
public class TagGroupByResult implements GroupByResult
{
private Map<String, String> tagResults = new HashMap<String, String>();
private TagGroupBy groupBy;
public TagGroupByResult(TagGroupBy groupBy, Map<String, String> tagResults)
{
this.groupBy = checkNotNull(groupBy);
this.tagResults = checkNotNull(tagResults);
}
public Map<String, String> getTagResults()
{
return tagResults;
}
@Override
public String toJson() throws FormatterException
{
StringWriter stringWriter = new StringWriter();
JSONWriter writer = new JSONWriter(stringWriter);
try
{
writer.object();
writer.key("name").value("tag");
writer.key("tags").array();
for (String name : groupBy.getTagNames())
{
writer.value(name);
}
writer.endArray();
writer.key("group").object();
for (String tagName : tagResults.keySet())
{
writer.key(tagName).value(tagResults.get(tagName));
}
writer.endObject();
writer.endObject();
}
catch (JSONException e)
{
throw new FormatterException(e);
}
return stringWriter.toString();
}
}