src/main/kotlin/de/uapcore/lightpit/servlet/FeedServlet.kt

Sat, 09 Oct 2021 20:05:39 +0200

author
Mike Becker <universe@uap-core.de>
date
Sat, 09 Oct 2021 20:05:39 +0200
changeset 235
4258b9e010ae
parent 199
59393c8cc557
child 236
819c5178b6fe
permissions
-rw-r--r--

change rss feed to display the issue history

TODO: diffs and comments

universe@195 1 /*
universe@195 2 * Copyright 2021 Mike Becker. All rights reserved.
universe@195 3 *
universe@195 4 * Redistribution and use in source and binary forms, with or without
universe@195 5 * modification, are permitted provided that the following conditions are met:
universe@195 6 *
universe@195 7 * 1. Redistributions of source code must retain the above copyright
universe@195 8 * notice, this list of conditions and the following disclaimer.
universe@195 9 *
universe@195 10 * 2. Redistributions in binary form must reproduce the above copyright
universe@195 11 * notice, this list of conditions and the following disclaimer in the
universe@195 12 * documentation and/or other materials provided with the distribution.
universe@195 13 *
universe@195 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@195 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@195 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
universe@195 17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
universe@195 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
universe@195 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
universe@195 20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
universe@195 21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
universe@195 22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
universe@195 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
universe@195 24 */
universe@195 25
universe@195 26 package de.uapcore.lightpit.servlet
universe@195 27
universe@195 28 import de.uapcore.lightpit.AbstractServlet
universe@195 29 import de.uapcore.lightpit.HttpRequest
universe@195 30 import de.uapcore.lightpit.dao.DataAccessObject
universe@235 31 import de.uapcore.lightpit.entities.IssueHistoryData
universe@235 32 import de.uapcore.lightpit.entities.IssueHistoryEntry
universe@235 33 import de.uapcore.lightpit.viewmodel.IssueDiff
universe@195 34 import de.uapcore.lightpit.viewmodel.IssueFeed
universe@235 35 import de.uapcore.lightpit.viewmodel.IssueFeedEntry
universe@235 36 import java.text.SimpleDateFormat
universe@195 37 import javax.servlet.annotation.WebServlet
universe@195 38
universe@195 39 @WebServlet(urlPatterns = ["/feed/*"])
universe@195 40 class FeedServlet : AbstractServlet() {
universe@195 41
universe@195 42 init {
universe@198 43 get("/%project/issues.rss", this::issues)
universe@198 44 }
universe@198 45
universe@235 46 private fun String.convertLF() = replace("\r", "").replace("\n", "<br>")
universe@235 47
universe@235 48 private fun fullContent(issue: IssueHistoryData) = IssueDiff(
universe@235 49 issue.id,
universe@235 50 issue.subject,
universe@235 51 issue.component,
universe@235 52 issue.status.name,
universe@235 53 issue.category.name,
universe@235 54 issue.subject,
universe@235 55 issue.description.convertLF(),
universe@235 56 issue.assignee,
universe@235 57 issue.eta?.let { SimpleDateFormat("dd.MM.yyyy").format(it) } ?: "",
universe@235 58 issue.affected,
universe@235 59 issue.resolved
universe@235 60 )
universe@235 61
universe@235 62 private fun diffContent(cur: IssueHistoryData, next: IssueHistoryData): IssueDiff {
universe@235 63 val prev = fullContent(next)
universe@235 64 val diff = fullContent(cur)
universe@235 65 // TODO: compute and apply diff
universe@235 66 return diff
universe@235 67 }
universe@235 68
universe@235 69 /**
universe@235 70 * Generates the feed entries.
universe@235 71 * Assumes that [historyEntry] is already sorted by timestamp (descending).
universe@235 72 */
universe@235 73 private fun generateFeedEntries(historyEntry: List<IssueHistoryEntry>) =
universe@235 74 if (historyEntry.isEmpty()) emptyList()
universe@235 75 else historyEntry.zipWithNext().map { (cur, next) ->
universe@235 76 IssueFeedEntry(
universe@235 77 cur.time, cur.type, diffContent(cur.data, next.data)
universe@235 78 )
universe@235 79 }.plus(
universe@235 80 historyEntry.last().let { IssueFeedEntry(it.time, it.type, fullContent(it.data)) }
universe@235 81 )
universe@235 82
universe@195 83 private fun issues(http: HttpRequest, dao: DataAccessObject) {
universe@198 84 val project = http.pathParams["project"]?.let { dao.findProjectByNode(it) }
universe@198 85 if (project == null) {
universe@198 86 http.response.sendError(404)
universe@198 87 return
universe@198 88 }
universe@195 89
universe@235 90 val days = http.param("days")?.toIntOrNull() ?: 30
universe@195 91
universe@235 92 val issueHistory = dao.listIssueHistory(project.id, days)
universe@235 93 // TODO: add comment history depending on parameter
universe@235 94
universe@235 95 http.view = IssueFeed(project, generateFeedEntries(issueHistory))
universe@198 96 http.renderFeed("issues-feed")
universe@195 97 }
universe@195 98 }

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