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- /*
- * Copyright 2013 gitblit.com.
- *
- * 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 com.gitblit.tickets;
-
- import java.lang.reflect.Type;
- import java.util.ArrayList;
- import java.util.Collection;
- import java.util.Date;
- import java.util.List;
-
- import com.gitblit.models.TicketModel;
- import com.gitblit.models.TicketModel.Change;
- import com.gitblit.models.TicketModel.Score;
- import com.gitblit.utils.ArrayUtils;
- import com.gitblit.utils.JsonUtils.ExcludeField;
- import com.gitblit.utils.JsonUtils.GmtDateTypeAdapter;
- import com.google.gson.ExclusionStrategy;
- import com.google.gson.Gson;
- import com.google.gson.GsonBuilder;
- import com.google.gson.JsonDeserializationContext;
- import com.google.gson.JsonDeserializer;
- import com.google.gson.JsonElement;
- import com.google.gson.JsonPrimitive;
- import com.google.gson.JsonSerializationContext;
- import com.google.gson.JsonSerializer;
- import com.google.gson.JsonSyntaxException;
- import com.google.gson.reflect.TypeToken;
-
- /**
- * Serializes and deserializes tickets, change, and journals.
- *
- * @author James Moger
- *
- */
- public class TicketSerializer {
-
- protected static final Type JOURNAL_TYPE = new TypeToken<Collection<Change>>() {}.getType();
-
- public static List<Change> deserializeJournal(String json) {
- Collection<Change> list = gson().fromJson(json, JOURNAL_TYPE);
- return new ArrayList<Change>(list);
- }
-
- public static TicketModel deserializeTicket(String json) {
- return gson().fromJson(json, TicketModel.class);
- }
-
- public static TicketLabel deserializeLabel(String json) {
- return gson().fromJson(json, TicketLabel.class);
- }
-
- public static TicketMilestone deserializeMilestone(String json) {
- return gson().fromJson(json, TicketMilestone.class);
- }
-
-
- public static String serializeJournal(List<Change> changes) {
- try {
- Gson gson = gson();
- return gson.toJson(changes);
- } catch (Exception e) {
- // won't happen
- }
- return null;
- }
-
- public static String serialize(TicketModel ticket) {
- if (ticket == null) {
- return null;
- }
- try {
- Gson gson = gson(
- new ExcludeField("com.gitblit.models.TicketModel$Attachment.content"),
- new ExcludeField("com.gitblit.models.TicketModel$Attachment.deleted"),
- new ExcludeField("com.gitblit.models.TicketModel$Comment.deleted"));
- return gson.toJson(ticket);
- } catch (Exception e) {
- // won't happen
- }
- return null;
- }
-
- public static String serialize(Change change) {
- if (change == null) {
- return null;
- }
- try {
- Gson gson = gson(
- new ExcludeField("com.gitblit.models.TicketModel$Attachment.content"));
- return gson.toJson(change);
- } catch (Exception e) {
- // won't happen
- }
- return null;
- }
-
- public static String serialize(TicketLabel label) {
- if (label == null) {
- return null;
- }
- try {
- Gson gson = gson();
- return gson.toJson(label);
- } catch (Exception e) {
- // won't happen
- }
- return null;
- }
-
- public static String serialize(TicketMilestone milestone) {
- if (milestone == null) {
- return null;
- }
- try {
- Gson gson = gson();
- return gson.toJson(milestone);
- } catch (Exception e) {
- // won't happen
- }
- return null;
- }
-
- // build custom gson instance with GMT date serializer/deserializer
- // http://code.google.com/p/google-gson/issues/detail?id=281
- public static Gson gson(ExclusionStrategy... strategies) {
- GsonBuilder builder = new GsonBuilder();
- builder.registerTypeAdapter(Date.class, new GmtDateTypeAdapter());
- builder.registerTypeAdapter(Score.class, new ScoreTypeAdapter());
- if (!ArrayUtils.isEmpty(strategies)) {
- builder.setExclusionStrategies(strategies);
- }
- return builder.create();
- }
-
- private static class ScoreTypeAdapter implements JsonSerializer<Score>, JsonDeserializer<Score> {
-
- private ScoreTypeAdapter() {
- }
-
- @Override
- public synchronized JsonElement serialize(Score score, Type type,
- JsonSerializationContext jsonSerializationContext) {
- return new JsonPrimitive(score.getValue());
- }
-
- @Override
- public synchronized Score deserialize(JsonElement jsonElement, Type type,
- JsonDeserializationContext jsonDeserializationContext) {
- try {
- int value = jsonElement.getAsInt();
- for (Score score : Score.values()) {
- if (score.getValue() == value) {
- return score;
- }
- }
- return Score.not_reviewed;
- } catch (Exception e) {
- throw new JsonSyntaxException(jsonElement.getAsString(), e);
- }
- }
- }
- }
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