public Event deserialize()

in org.eclipse.egit.github.core/src/org/eclipse/egit/github/core/client/EventFormatter.java [79:142]
60 lines of code
27 McCabe index (conditional complexity)

	public Event deserialize(JsonElement json, Type typeOfT,
			JsonDeserializationContext context) throws JsonParseException {
		final Event event = gson.fromJson(json, Event.class);
		if (event == null || !json.isJsonObject())
			return event;
		final JsonElement rawPayload = json.getAsJsonObject().get("payload"); //$NON-NLS-1$
		if (rawPayload == null || !rawPayload.isJsonObject())
			return event;
		final String type = event.getType();
		if (type == null || type.length() == 0)
			return event;

		Class<? extends EventPayload> payloadClass;
		if (TYPE_COMMIT_COMMENT.equals(type))
			payloadClass = CommitCommentPayload.class;
		else if (TYPE_CREATE.equals(type))
			payloadClass = CreatePayload.class;
		else if (TYPE_DELETE.equals(type))
			payloadClass = DeletePayload.class;
		else if (TYPE_DOWNLOAD.equals(type))
			payloadClass = DownloadPayload.class;
		else if (TYPE_FOLLOW.equals(type))
			payloadClass = FollowPayload.class;
		else if (TYPE_FORK.equals(type))
			payloadClass = ForkPayload.class;
		else if (TYPE_FORK_APPLY.equals(type))
			payloadClass = ForkApplyPayload.class;
		else if (TYPE_GIST.equals(type))
			payloadClass = GistPayload.class;
		else if (TYPE_GOLLUM.equals(type))
			payloadClass = GollumPayload.class;
		else if (TYPE_ISSUE_COMMENT.equals(type))
			payloadClass = IssueCommentPayload.class;
		else if (TYPE_ISSUES.equals(type))
			payloadClass = IssuesPayload.class;
		else if (TYPE_MEMBER.equals(type))
			payloadClass = MemberPayload.class;
		else if (TYPE_PUBLIC.equals(type))
			payloadClass = PublicPayload.class;
		else if (TYPE_PULL_REQUEST.equals(type))
			payloadClass = PullRequestPayload.class;
		else if (TYPE_PULL_REQUEST_REVIEW_COMMENT.equals(type))
			payloadClass = PullRequestReviewCommentPayload.class;
		else if (TYPE_PUSH.equals(type))
			payloadClass = PushPayload.class;
		else if (TYPE_RELEASE.equals(type))
			payloadClass = ReleasePayload.class;
		else if (TYPE_TEAM_ADD.equals(type))
			payloadClass = TeamAddPayload.class;
		else if (TYPE_WATCH.equals(type))
			payloadClass = WatchPayload.class;
		else
			return event;

		try {
			EventPayload typedPayload = context.deserialize(rawPayload,
					payloadClass);
			return event.setPayload(typedPayload);
		} catch (JsonParseException jpe) {
			// Parse exception here denotes legacy payloads with differing
			// fields than built-in payload classes provide
			return event;
		}
	}