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Posted to notifications@james.apache.org by bt...@apache.org on 2023/05/24 07:18:46 UTC
[james-project] 02/06: JAMES-3909 Service for delete user data
This is an automated email from the ASF dual-hosted git repository.
btellier pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/james-project.git
commit 71d438aa8c91b5f181ef8982cfa30ca92522fa18
Author: Quan Tran <hq...@linagora.com>
AuthorDate: Thu May 18 13:36:56 2023 +0700
JAMES-3909 Service for delete user data
Plug steps together, running them one after theother and provides ordering of steps, execution tacking.
Stops at first failed steps and aborts the following steps.
Co-authored-by: Benoit Tellier <bt...@linagora.com>
---
.../webadmin/service/DeleteUserDataService.java | 146 +++++++++++++++++++++
1 file changed, 146 insertions(+)
diff --git a/server/protocols/webadmin/webadmin-data/src/main/java/org/apache/james/webadmin/service/DeleteUserDataService.java b/server/protocols/webadmin/webadmin-data/src/main/java/org/apache/james/webadmin/service/DeleteUserDataService.java
new file mode 100644
index 0000000000..2bd572b68c
--- /dev/null
+++ b/server/protocols/webadmin/webadmin-data/src/main/java/org/apache/james/webadmin/service/DeleteUserDataService.java
@@ -0,0 +1,146 @@
+/****************************************************************
+ * 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.james.webadmin.service;
+
+import java.util.Comparator;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import javax.inject.Inject;
+
+import org.apache.james.core.Username;
+import org.apache.james.user.api.DeleteUserDataTaskStep;
+import org.apache.james.user.api.DeleteUserDataTaskStep.StepName;
+
+import com.google.common.collect.ImmutableMap;
+
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+public class DeleteUserDataService {
+ public enum StepState {
+ WAITING,
+ IN_PROGRESS,
+ DONE,
+ FAILED,
+ ABORTED,
+ SKIPPED
+ }
+
+ public static class DeleteUserDataStatus {
+ private final Map<StepName, StepState> states;
+
+ public DeleteUserDataStatus(Set<DeleteUserDataTaskStep> steps) {
+ states = new ConcurrentHashMap<>(steps.stream()
+ .collect(ImmutableMap.toImmutableMap(DeleteUserDataTaskStep::name, any -> StepState.WAITING)));
+ }
+
+ public void beginStep(StepName step) {
+ states.put(step, StepState.IN_PROGRESS);
+ }
+
+ public void endStep(StepName step) {
+ states.put(step, StepState.DONE);
+ }
+
+ public void failedStep(StepName step) {
+ states.put(step, StepState.FAILED);
+ }
+
+ public void abortStep(StepName step) {
+ states.put(step, StepState.ABORTED);
+ }
+
+ public void skipStep(StepName step) {
+ states.put(step, StepState.SKIPPED);
+ }
+
+ public void abort() {
+ states.entrySet()
+ .stream()
+ .filter(entry -> entry.getValue() == StepState.WAITING || entry.getValue() == StepState.IN_PROGRESS)
+ .forEach(entry -> abortStep(entry.getKey()));
+ }
+
+ public Map<StepName, StepState> getStates() {
+ return ImmutableMap.copyOf(states);
+ }
+ }
+
+ public static class Performer {
+ private final Set<DeleteUserDataTaskStep> steps;
+ private final DeleteUserDataStatus status;
+ private final Optional<Integer> correspondingPriority;
+
+ public Performer(Set<DeleteUserDataTaskStep> steps, DeleteUserDataStatus status, Optional<StepName> fromStep) {
+ this.steps = steps;
+ this.status = status;
+ this.correspondingPriority = fromStep.map(this::correspondingPriority);
+ }
+
+ public Mono<Void> deleteUserData(Username username) {
+ correspondingPriority.ifPresent(priority -> steps.stream()
+ .filter(step -> step.priority() < priority)
+ .forEach(step -> status.skipStep(step.name())));
+
+ return steps()
+ .concatMap(step -> Mono.fromRunnable(() -> status.beginStep(step.name()))
+ .then(Mono.from(step.deleteUserData(username)))
+ .then(Mono.fromRunnable(() -> status.endStep(step.name())))
+ .doOnError(e -> status.failedStep(step.name())))
+ .doOnError(e -> status.abort())
+ .then();
+ }
+
+ private Flux<DeleteUserDataTaskStep> steps() {
+ return correspondingPriority
+ .map(priority -> Flux.fromIterable(steps)
+ .filter(step -> step.priority() >= priority)
+ .sort(Comparator.comparingInt(DeleteUserDataTaskStep::priority)))
+ .orElseGet(() -> Flux.fromIterable(steps)
+ .sort(Comparator.comparingInt(DeleteUserDataTaskStep::priority)));
+ }
+
+ private int correspondingPriority(StepName stepName) {
+ return steps.stream()
+ .filter(step -> step.name().equals(stepName))
+ .map(DeleteUserDataTaskStep::priority)
+ .findAny()
+ .orElseThrow(() -> new IllegalArgumentException("Starting step not found: " + stepName.asString()));
+ }
+
+ public DeleteUserDataStatus getStatus() {
+ return status;
+ }
+ }
+
+ private final Set<DeleteUserDataTaskStep> steps;
+
+ @Inject
+ public DeleteUserDataService(Set<DeleteUserDataTaskStep> steps) {
+ this.steps = steps;
+ }
+
+ public Performer performer(Optional<StepName> fromStep) {
+ return new Performer(steps, new DeleteUserDataStatus(steps), fromStep);
+ }
+}
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