/**
* Generates a collection meta token representing this collection.
*
* @return String.
*/
public String buildCollectionMetaToken() {
Map<String, Object> claims = data.asMap();
boolean isNetworkIssued = isNetworkIssued();
claims.put("iss", isNetworkIssued ? site.getNetwork().getUrn() : site.getUrn());
return LivefyreUtil.serializeAndSign(
claims, isNetworkIssued ? site.getNetwork().getData().getKey() : site.getData().getKey());
}
private String getPayload() {
Map<String, Object> payload =
ImmutableMap.<String, Object>of(
"articleId", data.getArticleId(),
"checksum", buildChecksum(),
"collectionMeta", buildCollectionMetaToken());
return LivefyreUtil.mapToJsonString(payload);
}
/**
* Generates a MD5-encrypted checksum based on this collection's attributes.
*
* @return String.
*/
public String buildChecksum() {
try {
Map<String, Object> attr = data.asMap();
byte[] digest =
MessageDigest.getInstance("MD5").digest(LivefyreUtil.mapToJsonString(attr).getBytes());
return printHexBinary(digest);
} catch (NoSuchAlgorithmException e) {
throw new LivefyreException("MD5 message digest missing. This shouldn't ever happen." + e);
}
}
/**
* Informs Livefyre to either create or update a collection based on the attributes of this
* Collection. Makes an external API call. Returns this.
*
* @return Collection
*/
public Collection createOrUpdate() {
ClientResponse response = invokeCollectionApi("create");
if (response.getStatus() == 200) {
data.setId(
LivefyreUtil.stringToJson(response.getEntity(String.class))
.getAsJsonObject("data")
.get("collectionId")
.getAsString());
return this;
} else if (response.getStatus() == 409) {
response = invokeCollectionApi("update");
if (response.getStatus() == 200) {
data.setId(
LivefyreUtil.stringToJson(response.getEntity(String.class))
.getAsJsonObject("data")
.get("collectionId")
.getAsString());
return this;
}
}
throw new ApiException(response.getStatus());
}
public boolean isNetworkIssued() {
List<Topic> topics = data.getTopics();
if (topics == null || topics.isEmpty()) {
return false;
}
String networkUrn = site.getNetwork().getUrn();
for (Topic topic : topics) {
String topicId = topic.getId();
if (topicId.startsWith(networkUrn) && !topicId.replace(networkUrn, "").startsWith(":site=")) {
return true;
}
}
return false;
}
/**
* Retrieves this collection's information from Livefyre. Makes an external API call.
*
* @return JSONObject.
*/
public JsonObject getCollectionContent() {
String b64articleId = Base64Url.encode(data.getArticleId().getBytes());
if (b64articleId.length() % 4 != 0) {
b64articleId = b64articleId + StringUtils.repeat("=", 4 - (b64articleId.length() % 4));
}
String url =
String.format(
"%s/bs3/%s.fyre.co/%s/%s/init",
Domain.bootstrap(this),
site.getNetwork().getNetworkName(),
site.getData().getId(),
b64articleId);
ClientResponse response =
Client.create().resource(url).accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
if (response.getStatus() >= 400) {
throw new ApiException(response.getStatus());
}
Gson gson = new Gson();
return gson.fromJson(response.getEntity(String.class), JsonObject.class);
}
public String getUrn() {
return String.format("%s:collection=%s", site.getUrn(), data.getId());
}