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Test server support for bidi links (#2258)
* Test server support for bidi links * typo * license * feedback * link validation * describe fields * link validation
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temporal-test-server/src/main/java/io/temporal/internal/testservice/LinkConverter.java
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| /* | ||
| * Copyright (C) 2022 Temporal Technologies, Inc. All Rights Reserved. | ||
| * | ||
| * Copyright (C) 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Modifications copyright (C) 2017 Uber Technologies, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this material 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.temporal.internal.testservice; | ||
|
|
||
| import io.temporal.api.common.v1.Link; | ||
| import io.temporal.api.enums.v1.EventType; | ||
| import java.net.URI; | ||
| import java.net.URLDecoder; | ||
| import java.net.URLEncoder; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.StringTokenizer; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| public class LinkConverter { | ||
|
|
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| private static final Logger log = LoggerFactory.getLogger(StateMachines.class); | ||
|
|
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| private static final String linkPathFormat = "temporal:///namespaces/%s/workflows/%s/%s/history"; | ||
|
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| public static io.temporal.api.nexus.v1.Link workflowEventToNexusLink(Link.WorkflowEvent we) { | ||
| try { | ||
| String url = | ||
| String.format( | ||
| linkPathFormat, | ||
| URLEncoder.encode(we.getNamespace(), StandardCharsets.UTF_8.toString()), | ||
| URLEncoder.encode(we.getWorkflowId(), StandardCharsets.UTF_8.toString()), | ||
| URLEncoder.encode(we.getRunId(), StandardCharsets.UTF_8.toString())); | ||
|
|
||
| if (we.hasEventRef()) { | ||
| url += "?"; | ||
| if (we.getEventRef().getEventId() > 0) { | ||
| url += "eventID=" + we.getEventRef().getEventId() + "&"; | ||
| } | ||
| url += | ||
| "eventType=" | ||
| + URLEncoder.encode( | ||
| we.getEventRef().getEventType().name(), StandardCharsets.UTF_8.toString()) | ||
| + "&"; | ||
| url += "referenceType=EventReference"; | ||
| } | ||
|
|
||
| return io.temporal.api.nexus.v1.Link.newBuilder() | ||
| .setUrl(url) | ||
| .setType(we.getDescriptorForType().getFullName()) | ||
| .build(); | ||
| } catch (Exception e) { | ||
| log.error("Failed to encode Nexus link URL", e); | ||
| } | ||
| return null; | ||
| } | ||
|
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| public static Link nexusLinkToWorkflowEvent(io.temporal.api.nexus.v1.Link nexusLink) { | ||
| Link.Builder link = Link.newBuilder(); | ||
| try { | ||
| URI uri = new URI(nexusLink.getUrl()); | ||
|
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||
| if (!uri.getScheme().equals("temporal")) { | ||
| log.error("Failed to parse Nexus link URL: invalid scheme: {}", uri.getScheme()); | ||
| return null; | ||
| } | ||
|
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| StringTokenizer st = new StringTokenizer(uri.getRawPath(), "/"); | ||
| if (!st.nextToken().equals("namespaces")) { | ||
| log.error("Failed to parse Nexus link URL: invalid path: {}", uri.getRawPath()); | ||
| return null; | ||
| } | ||
| String namespace = URLDecoder.decode(st.nextToken(), StandardCharsets.UTF_8.toString()); | ||
| if (!st.nextToken().equals("workflows")) { | ||
| log.error("Failed to parse Nexus link URL: invalid path: {}", uri.getRawPath()); | ||
| return null; | ||
| } | ||
| String workflowID = URLDecoder.decode(st.nextToken(), StandardCharsets.UTF_8.toString()); | ||
| String runID = URLDecoder.decode(st.nextToken(), StandardCharsets.UTF_8.toString()); | ||
| if (!st.hasMoreTokens() || !st.nextToken().equals("history")) { | ||
| log.error("Failed to parse Nexus link URL: invalid path: {}", uri.getRawPath()); | ||
| return null; | ||
| } | ||
|
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| Link.WorkflowEvent.Builder we = | ||
| Link.WorkflowEvent.newBuilder() | ||
| .setNamespace(namespace) | ||
| .setWorkflowId(workflowID) | ||
| .setRunId(runID); | ||
|
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||
| if (uri.getQuery() != null) { | ||
| Link.WorkflowEvent.EventReference.Builder eventRef = | ||
| Link.WorkflowEvent.EventReference.newBuilder(); | ||
| String query = URLDecoder.decode(uri.getQuery(), StandardCharsets.UTF_8.toString()); | ||
| st = new StringTokenizer(query, "&"); | ||
| while (st.hasMoreTokens()) { | ||
| String[] param = st.nextToken().split("="); | ||
| switch (param[0]) { | ||
| case "eventID": | ||
| eventRef.setEventId(Long.parseLong(param[1])); | ||
| continue; | ||
| case "eventType": | ||
| eventRef.setEventType(EventType.valueOf(param[1])); | ||
| } | ||
| } | ||
| we.setEventRef(eventRef); | ||
| link.setWorkflowEvent(we); | ||
| } | ||
| } catch (Exception e) { | ||
| // Swallow un-parsable links since they are not critical to processing | ||
| log.error("Failed to parse Nexus link URL", e); | ||
| return null; | ||
| } | ||
| return link.build(); | ||
| } | ||
| } |
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