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https://issues.apache.org/jira/browse/SCB-324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16407866#comment-16407866
]
ASF GitHub Bot commented on SCB-324:
------------------------------------
liubao68 commented on a change in pull request #615: [SCB-324] Fault-Injection
handler implementation
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/615#discussion_r176072782
##########
File path:
handlers/handler-fault-injection/src/main/java/org/apache/servicecomb/faultinjection/FaultExecutor.java
##########
@@ -0,0 +1,70 @@
+/*
+ * 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.servicecomb.faultinjection;
+
+import java.util.List;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.swagger.invocation.AsyncResponse;
+import org.apache.servicecomb.swagger.invocation.Response;
+
+
+/**
+ * Implements the fault feature execution one after other.
+ */
+public class FaultExecutor {
+ private List<Fault> faultInjectList;
+
+ private int handlerIndex = 0;
+
+ private Invocation invocation;
+
+ private FaultParam param;
+
+ public FaultExecutor(List<Fault> faultInjectList, Invocation invocation,
FaultParam param) {
+ this.faultInjectList = faultInjectList;
+ this.invocation = invocation;
+ this.param = param;
+ }
+
+ public void execute(AsyncResponse asyncResponse) {
+ this.next(asyncResponse);
+ }
+
+ private void next(AsyncResponse asyncResponse) {
+ if (handlerIndex >= faultInjectList.size()) {
+ asyncResponse.complete(Response.succResp(new FaultResponse()));
+ return;
+ }
+
+ int runIndex = handlerIndex;
+ handlerIndex++;
+ faultInjectList.get(runIndex).injectFault(invocation, param, response -> {
+ if (response.isFailed()) {
+ asyncResponse.complete(response);
+ } else {
+ FaultResponse r = response.getResult();
+ if (r.getStatusCode() != 0) {
Review comment:
is it FAULT_INJECTION_ERROR?
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> Chassis must support network failure simulation, so that I can developers can
> enhance the robustness of the app
> ---------------------------------------------------------------------------------------------------------------
>
> Key: SCB-324
> URL: https://issues.apache.org/jira/browse/SCB-324
> Project: Apache ServiceComb
> Issue Type: Task
> Components: Java-Chassis
> Reporter: sukesh
> Assignee: sukesh
> Priority: Minor
> Fix For: java-chassis-1.0.0-m2
>
>
> Add new handler for fault injection.
> 1) If handler 'fault-injection' is added in application property
> file(microservice.yaml) then fault-injection handler should include in
> handler chain.
> 2) When handler is called read the configuration and listen the configuration
> event related to fault inject. The sample configuration file is in next slide.
> 3) The configuration mainly consist
> -delay
> -abort
> *delay:*can set the delay for requests based on percentage configured. The
> unit is ms. The delay percentage default value is 100%
> *abort*: Abort the requests based on percentage configured. For rest
> transport protocol error code can be configurable(500, 421) and highway
> protocol does not support for error return. The abort percentage default
> value is 100%
> 4) This features currently supports at consumer side.
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