/* * Copyright 2017 Red Hat, Inc. and/or its affiliates * and other contributors as indicated by the @author tags. * * 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 io.vertx.micrometer.impl; import io.micrometer.core.instrument.Tag; import io.vertx.core.net.SocketAddress; import io.vertx.micrometer.Label; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @author Joel Takvorian */ public final class Labels { private Labels() { } public static String fromAddress(SocketAddress address) { return address == null ? "?" : (address.host() + ":" + address.port()); } public static String getSide(boolean local) { return local ? "local" : "remote"; } public static List<Tag> toTags(Label[] keys, String[] values) { if (keys.length == 0) { return Collections.emptyList(); } List<Tag> tags = new ArrayList<>(keys.length); for (int i = 0; i < keys.length; i++) { if (values[i] != null) { String lowKey = keys[i].toString(); tags.add(Tag.of(lowKey, values[i])); } } return tags; } }