1 files changed, 175 insertions, 0 deletions
diff --git a/src/main/java/com/gitblit/tickets/TicketSerializer.java b/src/main/java/com/gitblit/tickets/TicketSerializer.java
new file mode 100644
index 00000000..2a71af33
--- /dev/null
+++ b/src/main/java/com/gitblit/tickets/TicketSerializer.java
@@ -0,0 +1,175 @@
+/*
+ * 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);
+			}
+		}
+	}
+}