| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.onosproject.openstacktelemetry.util; |
| |
| import com.google.common.base.Strings; |
| import org.onlab.packet.IPv4; |
| import org.onosproject.cfg.ConfigProperty; |
| |
| import java.util.Dictionary; |
| import java.util.Optional; |
| import java.util.Set; |
| |
| import static org.onlab.util.Tools.get; |
| |
| /** |
| * An utility that used in openstack telemetry app. |
| */ |
| public final class OpenstackTelemetryUtil { |
| |
| private static final String PROTOCOL_NAME_TCP = "tcp"; |
| private static final String PROTOCOL_NAME_UDP = "udp"; |
| private static final String PROTOCOL_NAME_ANY = "any"; |
| private static final int ARBITRARY_PROTOCOL = 0x0; |
| |
| /** |
| * Prevents object instantiation from external. |
| */ |
| private OpenstackTelemetryUtil() { |
| } |
| |
| /** |
| * Gets Boolean property from the propertyName |
| * Return null if propertyName is not found. |
| * |
| * @param properties properties to be looked up |
| * @param propertyName the name of the property to look up |
| * @return value when the propertyName is defined or return null |
| */ |
| public static Boolean getBooleanProperty(Dictionary<?, ?> properties, |
| String propertyName) { |
| Boolean value; |
| try { |
| String s = get(properties, propertyName); |
| value = Strings.isNullOrEmpty(s) ? null : Boolean.valueOf(s); |
| } catch (ClassCastException e) { |
| value = null; |
| } |
| return value; |
| } |
| |
| /** |
| * Obtains the property value with specified property key name. |
| * |
| * @param properties a collection of properties |
| * @param name key name |
| * @return mapping value |
| */ |
| public static boolean getPropertyValueAsBoolean(Set<ConfigProperty> properties, String name) { |
| Optional<ConfigProperty> property = |
| properties.stream().filter(p -> p.name().equals(name)).findFirst(); |
| |
| return property.map(ConfigProperty::asBoolean).orElse(false); |
| } |
| |
| /** |
| * Obtains transport protocol type from the given string. |
| * |
| * @param str transport protocol name |
| * @return transport protocol type |
| */ |
| public static byte getProtocolTypeFromString(String str) { |
| switch (str.toLowerCase()) { |
| case PROTOCOL_NAME_TCP: |
| return IPv4.PROTOCOL_TCP; |
| case PROTOCOL_NAME_UDP: |
| return IPv4.PROTOCOL_UDP; |
| default: |
| return ARBITRARY_PROTOCOL; |
| } |
| } |
| |
| /** |
| * Obtains protocol name from the protocol type. |
| * |
| * @param type transport protocol type |
| * @return transport protocol name |
| */ |
| public static String getProtocolNameFromType(byte type) { |
| switch (type) { |
| case IPv4.PROTOCOL_TCP: |
| return PROTOCOL_NAME_TCP; |
| case IPv4.PROTOCOL_UDP: |
| return PROTOCOL_NAME_UDP; |
| case ARBITRARY_PROTOCOL: |
| return PROTOCOL_NAME_ANY; |
| default: |
| return PROTOCOL_NAME_ANY; |
| } |
| } |
| } |