Sat, 09 Oct 2021 20:05:39 +0200
change rss feed to display the issue history
TODO: diffs and comments
1 /*
2 * Copyright 2021 Mike Becker. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
26 package de.uapcore.lightpit.servlet
28 import de.uapcore.lightpit.AbstractServlet
29 import de.uapcore.lightpit.HttpRequest
30 import de.uapcore.lightpit.dao.DataAccessObject
31 import de.uapcore.lightpit.entities.IssueHistoryData
32 import de.uapcore.lightpit.entities.IssueHistoryEntry
33 import de.uapcore.lightpit.viewmodel.IssueDiff
34 import de.uapcore.lightpit.viewmodel.IssueFeed
35 import de.uapcore.lightpit.viewmodel.IssueFeedEntry
36 import java.text.SimpleDateFormat
37 import javax.servlet.annotation.WebServlet
39 @WebServlet(urlPatterns = ["/feed/*"])
40 class FeedServlet : AbstractServlet() {
42 init {
43 get("/%project/issues.rss", this::issues)
44 }
46 private fun String.convertLF() = replace("\r", "").replace("\n", "<br>")
48 private fun fullContent(issue: IssueHistoryData) = IssueDiff(
49 issue.id,
50 issue.subject,
51 issue.component,
52 issue.status.name,
53 issue.category.name,
54 issue.subject,
55 issue.description.convertLF(),
56 issue.assignee,
57 issue.eta?.let { SimpleDateFormat("dd.MM.yyyy").format(it) } ?: "",
58 issue.affected,
59 issue.resolved
60 )
62 private fun diffContent(cur: IssueHistoryData, next: IssueHistoryData): IssueDiff {
63 val prev = fullContent(next)
64 val diff = fullContent(cur)
65 // TODO: compute and apply diff
66 return diff
67 }
69 /**
70 * Generates the feed entries.
71 * Assumes that [historyEntry] is already sorted by timestamp (descending).
72 */
73 private fun generateFeedEntries(historyEntry: List<IssueHistoryEntry>) =
74 if (historyEntry.isEmpty()) emptyList()
75 else historyEntry.zipWithNext().map { (cur, next) ->
76 IssueFeedEntry(
77 cur.time, cur.type, diffContent(cur.data, next.data)
78 )
79 }.plus(
80 historyEntry.last().let { IssueFeedEntry(it.time, it.type, fullContent(it.data)) }
81 )
83 private fun issues(http: HttpRequest, dao: DataAccessObject) {
84 val project = http.pathParams["project"]?.let { dao.findProjectByNode(it) }
85 if (project == null) {
86 http.response.sendError(404)
87 return
88 }
90 val days = http.param("days")?.toIntOrNull() ?: 30
92 val issueHistory = dao.listIssueHistory(project.id, days)
93 // TODO: add comment history depending on parameter
95 http.view = IssueFeed(project, generateFeedEntries(issueHistory))
96 http.renderFeed("issues-feed")
97 }
98 }