/*
* Copyright © 2015 Cask Data, Inc.
*
* 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 co.cask.cdap.cli.command.metrics;
import co.cask.cdap.cli.CLIConfig;
import co.cask.cdap.cli.util.AbstractAuthCommand;
import co.cask.cdap.cli.util.ArgumentParser;
import co.cask.cdap.cli.util.RowMaker;
import co.cask.cdap.cli.util.table.Table;
import co.cask.cdap.client.MetricsClient;
import co.cask.cdap.proto.MetricQueryResult;
import co.cask.common.cli.Arguments;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.inject.Inject;
import java.io.PrintStream;
import java.util.List;
import java.util.Map;
/**
* Gets the value of a metric.
*/
public class GetMetricCommand extends AbstractAuthCommand {
private final MetricsClient client;
@Inject
public GetMetricCommand(MetricsClient client, CLIConfig cliConfig) {
super(cliConfig);
this.client = client;
}
@Override
public void perform(Arguments arguments, PrintStream output) throws Exception {
String metric = arguments.get("metric-name");
Map<String, String> tags = ArgumentParser.parseMap(arguments.get("tags", ""));
String start = arguments.get("start", "");
String end = arguments.get("end", "");
MetricQueryResult result = client.query(
tags, ImmutableList.of(metric), ImmutableList.<String>of(),
start.isEmpty() ? null : start,
end.isEmpty() ? null : end);
output.printf("Start time: %d\n", result.getStartTime());
output.printf("End time: %d\n", result.getEndTime());
for (MetricQueryResult.TimeSeries series : result.getSeries()) {
output.println();
output.printf("Series: %s\n", series.getMetricName());
if (!series.getGrouping().isEmpty()) {
output.printf("Grouping: %s\n", Joiner.on(",").withKeyValueSeparator("=").join(series.getGrouping()));
}
Table table = Table.builder()
.setHeader("timestamp", "value")
.setRows(ImmutableList.copyOf(series.getData()), new RowMaker<MetricQueryResult.TimeValue>() {
@Override
public List<?> makeRow(MetricQueryResult.TimeValue object) {
return Lists.newArrayList(object.getTime(), object.getValue());
}
}).build();
cliConfig.getTableRenderer().render(cliConfig, output, table);
}
}
@Override
public String getPattern() {
return "get metric value <metric-name> [<tags>] [start <start>] [end <end>]";
}
@Override
public String getDescription() {
return "Gets the value of a metric. Provide '<tags>' as a map in the format 'tag1=value1 tag2=value2'.";
}
}