| /* |
| * 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.camel.component.knative.spi; |
| |
| import java.util.Collection; |
| import java.util.Objects; |
| import java.util.Optional; |
| |
| import org.apache.camel.Exchange; |
| |
| public interface CloudEvent { |
| String CAMEL_CLOUD_EVENT_ID = "CamelCloudEventID"; |
| String CAMEL_CLOUD_EVENT_SOURCE = "CamelCloudEventSource"; |
| String CAMEL_CLOUD_EVENT_VERSION = "CamelCloudEventVersion"; |
| String CAMEL_CLOUD_EVENT_TYPE = "CamelCloudEventType"; |
| String CAMEL_CLOUD_EVENT_TYPE_VERSION = "CamelCloudEventTypeVersion"; |
| String CAMEL_CLOUD_EVENT_DATA_CONTENT_TYPE = "CamelCloudEventDataContentType"; |
| String CAMEL_CLOUD_EVENT_DATA_CONTENT_ENCODING = "CamelCloudEventDataContentEncoding"; |
| String CAMEL_CLOUD_EVENT_SCHEMA_URL = "CamelCloudEventSchemaURL"; |
| String CAMEL_CLOUD_EVENT_SUBJECT = "CamelCloudEventSubject"; |
| String CAMEL_CLOUD_EVENT_TIME = "CamelCloudEventTime"; |
| String CAMEL_CLOUD_EVENT_EXTENSIONS = "CamelCloudEventExtensions"; |
| String CAMEL_CLOUD_EVENT_CONTENT_TYPE = Exchange.CONTENT_TYPE; |
| |
| /** |
| * The CloudEvent spec version. |
| */ |
| String version(); |
| |
| /** |
| * List of supported attributes. |
| */ |
| Collection<Attribute> attributes(); |
| |
| /** |
| * Find attribute by id. |
| */ |
| default Optional<Attribute> attribute(String id) { |
| return attributes().stream() |
| .filter(a -> Objects.equals(id, a.id())) |
| .findFirst(); |
| } |
| |
| /** |
| * Mandatory find attribute by id. |
| */ |
| default Attribute mandatoryAttribute(String id) { |
| return attributes().stream() |
| .filter(a -> Objects.equals(id, a.id())) |
| .findFirst() |
| .orElseThrow(() -> new IllegalArgumentException("Unable to find attribute with id: " + id)); |
| } |
| |
| /** |
| * Mandatory find http attribute by id. |
| */ |
| default String httpAttribute(String id) { |
| return mandatoryAttribute(id).http(); |
| } |
| |
| /** |
| * Mandatory find json attribute by id. |
| */ |
| default String jsonAttribute(String id) { |
| return mandatoryAttribute(id).json(); |
| } |
| |
| interface Attribute { |
| /** |
| * The ID of the attributes, can be used to look it up. |
| */ |
| String id(); |
| |
| /** |
| * The name of the http header. |
| */ |
| String http(); |
| |
| /** |
| * The name of the json field. |
| */ |
| String json(); |
| |
| static Attribute simple(String id, String http, String json) { |
| return new Attribute() { |
| @Override |
| public String id() { |
| return id; |
| } |
| |
| @Override |
| public String http() { |
| return http; |
| } |
| |
| @Override |
| public String json() { |
| return json; |
| } |
| }; |
| } |
| } |
| } |