120 lines
4.0 KiB
Java
120 lines
4.0 KiB
Java
package de.anxietyprime.swajodel;
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import java.util.Objects;
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import java.util.Optional;
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import java.util.Vector;
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import java.sql.*;
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import com.fasterxml.jackson.annotation.JsonCreator;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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import com.fasterxml.jackson.annotation.JsonProperty;
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public class JodelPost {
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// id of the post
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public Long id;
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// Parent id
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public Optional<Long> parent = Optional.empty();
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// id of the author in db
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private final Long authorID;
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// anonymized authorID
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public Long anonymousID;
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// title of the post
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public String title;
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// content of the post
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public String content;
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// date of the post
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public Timestamp date;
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// location if the post
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public Location location;
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// the own reaction (null = none, true = positive, false = negative)
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public Optional<Boolean> reaction;
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// all other reactions
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public Reactions reactions;
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// list of all comments for the post
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public Vector<JodelPost> comments = new Vector<>();
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// anonymize function to recursively anonymize the posts
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public void anonymize(Vector<Long> idCache) {
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// get the anonymized id as index in cached authorIDs
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int i = idCache.indexOf(this.authorID);
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// if the index is -1 the authorID has not been cached jet
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if (i == -1) {
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// set the current anonymousID as length of the cache (== next index)
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this.anonymousID = (long) idCache.size();
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// push the current authorID to to cache
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idCache.add(this.authorID);
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}
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// the authorID has been anonymized once before, so we can get it from cache
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else this.anonymousID = (long) i;
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// recursively apply this algorithm for all comments, but include the idCache
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for (JodelPost comment : this.comments) {
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comment.anonymize(idCache);
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}
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}
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// add a comment if it is really a comment
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public boolean addComment(JodelPost post) {
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if (post.parent.isEmpty()) return true;
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// check if the post is a direct comment
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if (Objects.equals(post.parent.get(), this.id)) {
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// add the comment
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this.comments.add(post);
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// return success
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return true;
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}
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// recursively repeat this for all comments
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for (JodelPost comment : this.comments) {
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// return success if the post is a comment on a child
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if (comment.addComment(post)) return true;
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}
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// return no success
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return false;
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}
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// constructor from
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public JodelPost(ResultSet rs) throws SQLException {
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// add all other information to the post
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this.authorID = rs.getLong("author");
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this.id = rs.getLong("id");
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this.title = rs.getString("title");
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this.content = rs.getString("content");
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this.date = rs.getTimestamp("postdate");
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this.location = new Location(rs.getFloat("longitude"), rs.getFloat("latitude"));
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this.reaction = rs.getString("reaction") == null ? Optional.empty() : Optional.of(rs.getBoolean("reaction"));
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this.reactions = new Reactions(rs.getLong("positive"), rs.getLong("negative"));
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this.parent = Optional.of(rs.getLong("parent"));
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}
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// constructor from authorID for tests
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public JodelPost(int authorID) {
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this.authorID = (long) authorID;
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}
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@JsonCreator
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public JodelPost(@JsonProperty("title") String title,
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@JsonProperty("content") String content,
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@JsonProperty("date") Timestamp date,
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@JsonProperty("location") Location location,
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@JsonProperty("parent") Optional<Long> parent) {
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this.authorID = User.getID(); // TODO: getter from Keycloak
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this.title = title;
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this.content = content;
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this.date = date;
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this.location = location;
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this.parent = parent;
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}
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@JsonIgnore
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public long getAuthorID() {
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return authorID;
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}
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@JsonIgnore
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public boolean isComment() {
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return parent.filter(aLong -> !Objects.equals(id, aLong)).isPresent();
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}
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}
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