-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
5 changed files
with
161 additions
and
200 deletions.
There are no files selected for viewing
167 changes: 0 additions & 167 deletions
167
src/main/java/org/vaulttec/idm/sync/app/LinkHeader.java
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| /* | ||
| * IDM Syncronizer | ||
| * Copyright (c) 2018 Torsten Juergeleit | ||
| * mailto:torsten AT vaulttec DOT org | ||
| * | ||
| * Licensed 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.vaulttec.util; | ||
|
|
||
| import org.springframework.http.HttpHeaders; | ||
| import org.springframework.util.ObjectUtils; | ||
| import org.springframework.util.StringUtils; | ||
|
|
||
| import java.net.URI; | ||
| import java.net.URISyntaxException; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
|
||
| public class LinkHeader { | ||
| private final Map<Rel, Link> links; | ||
|
|
||
| protected LinkHeader(Map<Rel, Link> links) { | ||
| this.links = links; | ||
| } | ||
|
|
||
| public boolean hasLink(Rel rel) { | ||
| return links.containsKey(rel); | ||
| } | ||
|
|
||
| public Link getLink(Rel rel) { | ||
| return links.get(rel); | ||
| } | ||
|
|
||
| public static LinkHeader parse(HttpHeaders headers, String pageParameterName, String perPageParameterName ) { | ||
| String linkValue = headers.getFirst(HttpHeaders.LINK); | ||
| if (StringUtils.hasText(linkValue)) { | ||
| String[] linkValues = linkValue.split(","); | ||
| if (linkValues.length > 0) { | ||
| Map<Rel, Link> links = new HashMap<>(); | ||
| for (String value : linkValues) { | ||
| Link link = Link.fromSource(value, pageParameterName, perPageParameterName); | ||
| if (link != null && link.rel() != null) { | ||
| links.put(link.rel(), link); | ||
| } | ||
| } | ||
| return new LinkHeader(links); | ||
| } | ||
|
|
||
| } | ||
| return null; | ||
| } | ||
|
|
||
| public enum Rel { | ||
| FIRST, PREV, NEXT, LAST; | ||
|
|
||
| public static Rel fromSource(String source) { | ||
| if (source != null) { | ||
| for (Rel rel : Rel.values()) { | ||
| String pattern = "rel=\"" + rel.name().toLowerCase() + "\""; | ||
| if (source.contains(pattern)) { | ||
| return rel; | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| public record Link(URI resourceUri, int page, int perPage, Rel rel) { | ||
| private static final Pattern QUERY_PATTERN = Pattern.compile("([^&=]+)=?([^&]+)?"); | ||
|
|
||
| public static Link fromSource(String source, String pageParameterName, String perPageParameterName) { | ||
| if (ObjectUtils.isEmpty(source)) { | ||
| return null; | ||
| } | ||
| URI resourceUri = getResourceUri(source); | ||
| Rel rel = Rel.fromSource(source); | ||
| int page = getQueryParameterValue(resourceUri, pageParameterName); | ||
| int perPage = getQueryParameterValue(resourceUri, perPageParameterName); | ||
| return new Link(resourceUri, page, perPage, rel); | ||
| } | ||
|
|
||
| private static URI getResourceUri(String source) { | ||
| int startIndex = source.indexOf("<"); | ||
| int endIndex = source.indexOf(">"); | ||
| if (startIndex < 0 || endIndex < 0) { | ||
| return null; | ||
| } else { | ||
| String resourceString = source.substring(startIndex, endIndex + 1); | ||
| try { | ||
| return new URI(resourceString.substring(1, resourceString.length() - 1)); | ||
| } catch (URISyntaxException e) { | ||
| throw new IllegalStateException("", e); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private static int getQueryParameterValue(URI resourceUri, String paramName) { | ||
| if (resourceUri == null) { | ||
| return -1; | ||
| } | ||
| String query = resourceUri.getQuery(); | ||
| if (query == null) | ||
| return -1; | ||
| Matcher matcher = QUERY_PATTERN.matcher(query); | ||
| while (matcher.find()) { | ||
| String name = matcher.group(1); | ||
| String value = matcher.group(2); | ||
| if (name.equals(paramName)) { | ||
| if (ObjectUtils.isEmpty(value)) { | ||
| return -1; | ||
| } else { | ||
| return Integer.parseInt(value); | ||
| } | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
| } | ||
| } |
Oops, something went wrong.