| /* |
| * 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.unomi.metrics.commands; |
| |
| import com.fasterxml.jackson.core.util.DefaultIndenter; |
| import com.fasterxml.jackson.core.util.DefaultPrettyPrinter; |
| import org.apache.karaf.shell.commands.Argument; |
| import org.apache.karaf.shell.commands.Command; |
| import org.apache.unomi.metrics.Metric; |
| import org.apache.unomi.persistence.spi.CustomObjectMapper; |
| |
| @Command(scope = "metrics", name = "view", description = "This will display all the data for a single metric ") |
| public class ViewCommand extends MetricsCommandSupport{ |
| |
| @Argument(index = 0, name = "metricName", description = "The identifier for the metric", required = true, multiValued = false) |
| String metricName; |
| |
| @Override |
| protected Object doExecute() throws Exception { |
| Metric metric = metricsService.getMetrics().get(metricName); |
| if (metric == null) { |
| System.out.println("Couldn't find a metric with name=" + metricName); |
| return null; |
| } |
| // by default pretty printer will use spaces between array values, we change this to linefeeds to make |
| // the caller values easier to read. |
| DefaultPrettyPrinter defaultPrettyPrinter = new DefaultPrettyPrinter(); |
| defaultPrettyPrinter = defaultPrettyPrinter.withArrayIndenter(DefaultIndenter.SYSTEM_LINEFEED_INSTANCE); |
| String jsonMetric = CustomObjectMapper.getObjectMapper().writer(defaultPrettyPrinter).writeValueAsString(metric); |
| System.out.println(jsonMetric); |
| return null; |
| } |
| } |