package ar.com.restba.connectors;
import static com.restfb.util.StringUtils.isBlank;
import static com.restfb.util.StringUtils.join;
import static com.restfb.util.StringUtils.trimToEmpty;
import static com.restfb.util.StringUtils.trimToNull;
import static com.restfb.util.StringUtils.urlEncode;
import static java.lang.String.format;
import static java.net.HttpURLConnection.HTTP_BAD_REQUEST;
import static java.net.HttpURLConnection.HTTP_FORBIDDEN;
import static java.net.HttpURLConnection.HTTP_INTERNAL_ERROR;
import static java.net.HttpURLConnection.HTTP_OK;
import static java.net.HttpURLConnection.HTTP_UNAUTHORIZED;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.logging.Level.INFO;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import ar.com.restba.RestBAJsonMapper;
import ar.com.restba.connectors.con.RestBAConnection;
import ar.com.restba.exception.RestBANetworkException;
import ar.com.restba.json.JsonArray;
import ar.com.restba.json.JsonException;
import ar.com.restba.json.JsonObject;
import com.restfb.BinaryAttachment;
import com.restfb.Connection;
import com.restfb.DefaultWebRequestor;
import com.restfb.FacebookClient;
import com.restfb.JsonMapper;
import com.restfb.Parameter;
import com.restfb.WebRequestor;
import com.restfb.WebRequestor.Response;
import com.restfb.batch.BatchRequest;
import com.restfb.batch.BatchResponse;
import com.restfb.exception.FacebookException;
import com.restfb.exception.FacebookExceptionMapper;
import com.restfb.exception.FacebookGraphException;
import com.restfb.exception.FacebookJsonMappingException;
import com.restfb.exception.FacebookOAuthException;
import com.restfb.exception.FacebookQueryParseException;
import com.restfb.exception.FacebookResponseStatusException;
/**
* Default implementation of a <a
* href="http://developers.facebook.com/docs/api">Facebook Graph API</a> client.
*
* @author <a href="http://restfb.com">Mark Allen</a>
*/
public class RestBAConnector extends BaseRestBAConnector implements
FacebookClient {
/**
* Graph API access token.
*/
protected String accessToken;
/**
* Knows how to map Graph API exceptions to formal Java exception types.
*/
protected FacebookExceptionMapper graphFacebookExceptionMapper;
/**
* API endpoint URL.
*/
public static final String DEFAULT_HOST = "http://elastic.restopengov.org";
/**
* Read-only API endpoint URL.
*/
protected static final String FACEBOOK_READ_ONLY_ENDPOINT_URL = "https://api-read.facebook.com/method";
/**
* Video Upload API endpoint URL.
*
* @since 1.6.5
*/
protected static final String FACEBOOK_GRAPH_VIDEO_ENDPOINT_URL = "https://graph-video.facebook.com";
/**
* Reserved method override parameter name.
*/
protected static final String METHOD_PARAM_NAME = "method";
/**
* Reserved "multiple IDs" parameter name.
*/
protected static final String IDS_PARAM_NAME = "ids";
/**
* Reserved FQL query parameter name.
*/
protected static final String QUERY_PARAM_NAME = "query";
/**
* Reserved FQL multiquery parameter name.
*/
protected static final String QUERIES_PARAM_NAME = "queries";
/**
* Reserved "result format" parameter name.
*/
protected static final String FORMAT_PARAM_NAME = "format";
/**
* API error response 'error' attribute name.
*/
protected static final String ERROR_ATTRIBUTE_NAME = "error";
/**
* API error response 'type' attribute name.
*/
protected static final String ERROR_TYPE_ATTRIBUTE_NAME = "type";
/**
* API error response 'message' attribute name.
*/
protected static final String ERROR_MESSAGE_ATTRIBUTE_NAME = "message";
/**
* Batch API error response 'error' attribute name.
*/
protected static final String BATCH_ERROR_ATTRIBUTE_NAME = "error";
/**
* Batch API error response 'error_description' attribute name.
*/
protected static final String BATCH_ERROR_DESCRIPTION_ATTRIBUTE_NAME = "error_description";
private final String host;
/**
* Creates a Facebook Graph API client with no access token.
* <p>
* Without an access token, you can view and search public graph data but
* can't do much else.
*/
public RestBAConnector() {
this(null, DEFAULT_HOST, new DefaultWebRequestor(),
new RestBAJsonMapper());
}
/**
* Creates a Facebook Graph API client with no access token.
* <p>
* Without an access token, you can view and search public graph data but
* can't do much else.
*/
public RestBAConnector(String host) {
this(null, host, new DefaultWebRequestor(), new RestBAJsonMapper());
}
/**
* Creates a Facebook Graph API client with the given {@code accessToken},
* {@code webRequestor}, and {@code jsonMapper}.
*
* @param accessToken
* A Facebook OAuth access token.
* @param webRequestor
* The {@link WebRequestor} implementation to use for sending
* requests to the API endpoint.
* @param jsonMapper
* The {@link JsonMapper} implementation to use for mapping API
* response JSON to Java objects.
* @throws NullPointerException
* If {@code jsonMapper} or {@code webRequestor} is {@code null}
* .
*/
public RestBAConnector(String accessToken, String host,
WebRequestor webRequestor, JsonMapper jsonMapper) {
super();
verifyParameterPresence("jsonMapper", jsonMapper);
verifyParameterPresence("webRequestor", webRequestor);
this.host = host;
this.accessToken = trimToNull(accessToken);
this.webRequestor = webRequestor;
this.jsonMapper = jsonMapper;
graphFacebookExceptionMapper = createGraphFacebookExceptionMapper();
illegalParamNames.addAll(Arrays
.asList(new String[] { ACCESS_TOKEN_PARAM_NAME,
METHOD_PARAM_NAME, FORMAT_PARAM_NAME }));
}
/**
* @see com.restfb.FacebookClient#deleteObject(java.lang.String)
*/
public boolean deleteObject(String object) {
verifyParameterPresence("object", object);
return "true".equals(makeRequest(object, true, true, null));
}
/**
* @see com.restfb.FacebookClient#fetchConnection(java.lang.String,
* java.lang.Class, com.restfb.Parameter[])
*/
public <T> Connection<T> fetchConnection(String connection,
Class<T> connectionType, Parameter... parameters) {
verifyParameterPresence("connection", connection);
verifyParameterPresence("connectionType", connectionType);
return new Connection<T>(this, makeRequest(connection, parameters),
connectionType);
}
/**
* @see com.restfb.FacebookClient#fetchConnectionPage(java.lang.String,
* java.lang.Class)
*/
public <T> Connection<T> fetchConnectionPage(
final String connectionPageUrl, Class<T> connectionType) {
String connectionJson = makeRequestAndProcessResponse(new Requestor() {
/**
* @see com.restfb.DefaultFacebookClient.Requestor#makeRequest()
*/
public Response makeRequest() throws IOException {
return webRequestor.executeGet(connectionPageUrl);
}
});
return new Connection<T>(this, connectionJson, connectionType);
}
/**
* @see com.restfb.FacebookClient#fetchObject(java.lang.String,
* java.lang.Class, com.restfb.Parameter[])
*/
public <T> T fetchObject(String object, Class<T> objectType,
Parameter... parameters) {
verifyParameterPresence("object", object);
verifyParameterPresence("objectType", objectType);
return jsonMapper.toJavaObject(makeRequest(object, parameters),
objectType);
}
/**
* @see com.restfb.FacebookClient#fetchObjects(java.util.List,
* java.lang.Class, com.restfb.Parameter[])
*/
@SuppressWarnings("unchecked")
public <T> T fetchObjects(List<String> ids, Class<T> objectType,
Parameter... parameters) {
verifyParameterPresence("ids", ids);
verifyParameterPresence("connectionType", objectType);
if (ids.size() == 0)
throw new IllegalArgumentException(
"The list of IDs cannot be empty.");
for (Parameter parameter : parameters)
if (IDS_PARAM_NAME.equals(parameter.name))
throw new IllegalArgumentException("You cannot specify the '"
+ IDS_PARAM_NAME + "' URL parameter yourself - "
+ "RestFB will populate this for you with "
+ "the list of IDs you passed to this method.");
// Normalize the IDs
for (int i = 0; i < ids.size(); i++) {
String id = ids.get(i).trim().toLowerCase();
if ("".equals(id))
throw new IllegalArgumentException(
"The list of IDs cannot contain blank strings.");
ids.set(i, id);
}
try {
JsonObject jsonObject = new JsonObject(makeRequest(
"",
parametersWithAdditionalParameter(
Parameter.with(IDS_PARAM_NAME, join(ids)),
parameters)));
return objectType.equals(JsonObject.class) ? (T) jsonObject
: jsonMapper
.toJavaObject(jsonObject.toString(), objectType);
} catch (JsonException e) {
throw new FacebookJsonMappingException(
"Unable to map connection JSON to Java objects", e);
}
}
/**
* @see com.restfb.FacebookClient#publish(java.lang.String, java.lang.Class,
* com.restfb.BinaryAttachment, com.restfb.Parameter[])
*/
public <T> T publish(String connection, Class<T> objectType,
BinaryAttachment binaryAttachment, Parameter... parameters) {
verifyParameterPresence("connection", connection);
List<BinaryAttachment> binaryAttachments = new ArrayList<BinaryAttachment>();
if (binaryAttachment != null)
binaryAttachments.add(binaryAttachment);
return jsonMapper.toJavaObject(
makeRequest(connection, true, false, binaryAttachments,
parameters), objectType);
}
/**
* @see com.restfb.FacebookClient#publish(java.lang.String, java.lang.Class,
* com.restfb.Parameter[])
*/
public <T> T publish(String connection, Class<T> objectType,
Parameter... parameters) {
return publish(connection, objectType, null, parameters);
}
/**
* @see com.restfb.FacebookClient#executeMultiquery(java.util.Map,
* java.lang.Class, com.restfb.Parameter[])
*/
@SuppressWarnings("unchecked")
public <T> T executeMultiquery(Map<String, String> queries,
Class<T> objectType, Parameter... parameters) {
verifyParameterPresence("objectType", objectType);
for (Parameter parameter : parameters)
if (QUERIES_PARAM_NAME.equals(parameter.name))
throw new IllegalArgumentException("You cannot specify the '"
+ QUERIES_PARAM_NAME + "' URL parameter yourself - "
+ "RestFB will populate this for you with "
+ "the queries you passed to this method.");
try {
JsonArray jsonArray = new JsonArray(makeRequest(
"fql.multiquery",
false,
false,
null,
parametersWithAdditionalParameter(Parameter.with(
QUERIES_PARAM_NAME, queriesToJson(queries)),
parameters)));
JsonObject normalizedJson = new JsonObject();
for (int i = 0; i < jsonArray.length(); i++) {
JsonObject jsonObject = jsonArray.getJsonObject(i);
// For empty resultsets, Facebook will return an empty object
// instead of
// an empty list. Hack around that here.
JsonArray resultsArray = jsonObject.get("fql_result_set") instanceof JsonArray ? jsonObject
.getJsonArray("fql_result_set") : new JsonArray();
normalizedJson.put(jsonObject.getString("name"), resultsArray);
}
return objectType.equals(JsonObject.class) ? (T) normalizedJson
: jsonMapper.toJavaObject(normalizedJson.toString(),
objectType);
} catch (JsonException e) {
throw new FacebookJsonMappingException(
"Unable to process fql.multiquery JSON response", e);
}
}
/**
* @see com.restfb.FacebookClient#executeQuery(java.lang.String,
* java.lang.Class, com.restfb.Parameter[])
*/
public <T> List<T> executeQuery(String query, Class<T> objectType,
Parameter... parameters) {
verifyParameterPresence("query", query);
verifyParameterPresence("objectType", objectType);
for (Parameter parameter : parameters)
if (QUERY_PARAM_NAME.equals(parameter.name))
throw new IllegalArgumentException("You cannot specify the '"
+ QUERY_PARAM_NAME + "' URL parameter yourself - "
+ "RestFB will populate this for you with "
+ "the query you passed to this method.");
return jsonMapper.toJavaList(
makeRequest(
"fql.query",
false,
false,
null,
parametersWithAdditionalParameter(
Parameter.with(QUERY_PARAM_NAME, query),
parameters)), objectType);
}
/**
* @see com.restfb.FacebookClient#executeBatch(com.restfb.batch.BatchRequest[])
*/
public List<BatchResponse> executeBatch(BatchRequest... batchRequests) {
return executeBatch(asList(batchRequests),
Collections.<BinaryAttachment> emptyList());
}
/**
* @see com.restfb.FacebookClient#executeBatch(java.util.List,
* java.util.List)
*/
public List<BatchResponse> executeBatch(List<BatchRequest> batchRequests,
List<BinaryAttachment> binaryAttachments) {
verifyParameterPresence("binaryAttachments", binaryAttachments);
if (batchRequests == null || batchRequests.size() == 0)
throw new IllegalArgumentException(
"You must specify at least one batch request.");
return jsonMapper.toJavaList(
makeRequest(
"",
true,
false,
binaryAttachments,
Parameter.with("batch",
jsonMapper.toJson(batchRequests, true))),
BatchResponse.class);
}
/**
* @see com.restfb.FacebookClient#convertSessionKeysToAccessTokens(java.lang.String,
* java.lang.String, java.lang.String[])
*/
public List<AccessToken> convertSessionKeysToAccessTokens(String appId,
String secretKey, String... sessionKeys) {
verifyParameterPresence("appId", appId);
verifyParameterPresence("secretKey", secretKey);
if (sessionKeys == null || sessionKeys.length == 0)
return emptyList();
String json = makeRequest("/oauth/exchange_sessions", true, false,
null, Parameter.with("client_id", appId),
Parameter.with("client_secret", secretKey),
Parameter.with("sessions", join(sessionKeys)));
return jsonMapper.toJavaList(json, AccessToken.class);
}
/**
* @see com.restfb.FacebookClient#getJsonMapper()
*/
public JsonMapper getJsonMapper() {
return jsonMapper;
}
/**
* @see com.restfb.FacebookClient#getWebRequestor()
*/
public WebRequestor getWebRequestor() {
return webRequestor;
}
/**
* Coordinates the process of executing the API request GET/POST and
* processing the response we receive from the endpoint.
*
* @param endpoint
* Facebook Graph API endpoint.
* @param parameters
* Arbitrary number of parameters to send along to Facebook as
* part of the API call.
* @return The JSON returned by Facebook for the API call.
* @throws FacebookException
* If an error occurs while making the Facebook API POST or
* processing the response.
*/
protected String makeRequest(String endpoint, Parameter... parameters) {
return makeRequest(endpoint, false, false, null, parameters);
}
/**
* Coordinates the process of executing the API request GET/POST and
* processing the response we receive from the endpoint.
*
* @param endpoint
* Facebook Graph API endpoint.
* @param executeAsPost
* {@code true} to execute the web request as a {@code POST},
* {@code false} to execute as a {@code GET}.
* @param executeAsDelete
* {@code true} to add a special 'treat this request as a
* {@code DELETE}' parameter.
* @param binaryAttachment
* A binary file to include in a {@code POST} request. Pass
* {@code null} if no attachment should be sent.
* @param parameters
* Arbitrary number of parameters to send along to Facebook as
* part of the API call.
* @return The JSON returned by Facebook for the API call.
* @throws FacebookException
* If an error occurs while making the Facebook API POST or
* processing the response.
*/
protected String makeRequest(String endpoint, final boolean executeAsPost,
boolean executeAsDelete,
final List<BinaryAttachment> binaryAttachments,
Parameter... parameters) {
verifyParameterLegality(parameters);
if (executeAsDelete)
parameters = parametersWithAdditionalParameter(
Parameter.with(METHOD_PARAM_NAME, "delete"), parameters);
trimToEmpty(endpoint).toLowerCase();
if (!endpoint.startsWith("/"))
endpoint = "/" + endpoint;
final String fullEndpoint = createEndpointForApiCall(endpoint,
binaryAttachments != null && binaryAttachments.size() > 0);
final String parameterString = toParameterString(parameters);
return makeRequestAndProcessResponse(new Requestor() {
/**
* @see com.restfb.DefaultFacebookClient.Requestor#makeRequest()
*/
public Response makeRequest() throws IOException {
return executeAsPost ? webRequestor.executePost(
fullEndpoint,
parameterString,
binaryAttachments == null ? null : binaryAttachments
.toArray(new BinaryAttachment[] {}))
: webRequestor.executeGet(fullEndpoint);
}
});
}
protected static interface Requestor {
Response makeRequest() throws IOException;
}
protected String makeRequestAndProcessResponse(Requestor requestor) {
Response response = null;
// Perform a GET or POST to the API endpoint
try {
response = requestor.makeRequest();
} catch (Throwable t) {
throw new RestBANetworkException("RestBA request failed", t);
}
if (logger.isLoggable(INFO))
logger.info("Facebook responded with " + response);
// If we get any HTTP response code other than a 200 OK or 400 Bad
// Request
// or 401 Not Authorized or 403 Forbidden or 500 Internal Server Error,
// throw an exception.
if (HTTP_OK != response.getStatusCode()
&& HTTP_BAD_REQUEST != response.getStatusCode()
&& HTTP_UNAUTHORIZED != response.getStatusCode()
&& HTTP_INTERNAL_ERROR != response.getStatusCode()
&& HTTP_FORBIDDEN != response.getStatusCode())
throw new RestBANetworkException(
"RestBA request failed. HTTP code: "
+ response.getStatusCode());
String json = response.getBody();
// If the response contained an error code, throw an exception.
throwFacebookResponseStatusExceptionIfNecessary(json);
// If there was no response error information and this was a 500 or 401
// error, something weird happened on Facebook's end. Bail.
if (HTTP_INTERNAL_ERROR == response.getStatusCode()
|| HTTP_UNAUTHORIZED == response.getStatusCode())
throw new RestBANetworkException(
"RestBA request failed. HTTP code: "
+ response.getStatusCode());
return json;
}
/**
* Throws an exception if Facebook returned an error response. Using the
* Graph API, it's possible to see both the new Graph API-style errors as
* well as Legacy API-style errors, so we have to handle both here. This
* method extracts relevant information from the error JSON and throws an
* exception which encapsulates it for end-user consumption.
* <p>
* For Graph API errors:
* <p>
* If the {@code error} JSON field is present, we've got a response status
* error for this API call.
* <p>
* For Legacy errors (e.g. FQL):
* <p>
* If the {@code error_code} JSON field is present, we've got a response
* status error for this API call.
*
* @param json
* The JSON returned by Facebook in response to an API call.
* @throws FacebookGraphException
* If the JSON contains a Graph API error response.
* @throws FacebookResponseStatusException
* If the JSON contains an Legacy API error response.
* @throws FacebookJsonMappingException
* If an error occurs while processing the JSON.
*/
protected void throwFacebookResponseStatusExceptionIfNecessary(String json) {
// If we have a legacy exception, throw it.
throwLegacyFacebookResponseStatusExceptionIfNecessary(json);
// If we have a batch API exception, throw it.
throwBatchFacebookResponseStatusExceptionIfNecessary(json);
try {
// If the result is not an object, bail immediately.
if (!json.startsWith("{"))
return;
JsonObject errorObject = new JsonObject(json);
if (errorObject == null || !errorObject.has(ERROR_ATTRIBUTE_NAME))
return;
JsonObject innerErrorObject = errorObject
.getJsonObject(ERROR_ATTRIBUTE_NAME);
throw graphFacebookExceptionMapper.exceptionForTypeAndMessage(null,
innerErrorObject.getString(ERROR_TYPE_ATTRIBUTE_NAME),
innerErrorObject.getString(ERROR_MESSAGE_ATTRIBUTE_NAME));
} catch (JsonException e) {
throw new FacebookJsonMappingException(
"Unable to process the Facebook API response", e);
}
}
/**
* If the {@code error} and {@code error_description} JSON fields are
* present, we've got a response status error for this batch API call.
* Extracts relevant information from the JSON and throws an exception which
* encapsulates it for end-user consumption.
*
* @param json
* The JSON returned by Facebook in response to a batch API call.
* @throws FacebookResponseStatusException
* If the JSON contains an error code.
* @throws FacebookJsonMappingException
* If an error occurs while processing the JSON.
* @since 1.6.5
*/
protected void throwBatchFacebookResponseStatusExceptionIfNecessary(
String json) {
try {
// If this is not an object, it's not an error response.
if (!json.startsWith("{"))
return;
JsonObject errorObject = null;
// We need to swallow exceptions here because it's possible to get a
// legit
// Facebook response that contains illegal JSON (e.g.
// users.getLoggedInUser returning 1240077) - we're only interested
// in
// whether or not there's an error_code field present.
try {
errorObject = new JsonObject(json);
} catch (JsonException e) {
}
if (errorObject == null
|| !errorObject.has(BATCH_ERROR_ATTRIBUTE_NAME)
|| !errorObject.has(BATCH_ERROR_DESCRIPTION_ATTRIBUTE_NAME))
return;
throw legacyFacebookExceptionMapper.exceptionForTypeAndMessage(
errorObject.getInt(BATCH_ERROR_ATTRIBUTE_NAME), null,
errorObject
.getString(BATCH_ERROR_DESCRIPTION_ATTRIBUTE_NAME));
} catch (JsonException e) {
throw new FacebookJsonMappingException(
"Unable to process the Facebook API response", e);
}
}
/**
* Specifies how we map Graph API exception types/messages to real Java
* exceptions.
* <p>
* Uses an instance of {@link DefaultGraphFacebookExceptionMapper} by
* default.
*
* @return An instance of the exception mapper we should use.
* @since 1.6
*/
protected FacebookExceptionMapper createGraphFacebookExceptionMapper() {
return new DefaultGraphFacebookExceptionMapper();
}
/**
* A canned implementation of {@code FacebookExceptionMapper} that maps
* Graph API exceptions.
* <p>
* Thanks to BatchFB's Jeff Schnitzer for doing some of the legwork to find
* these exception type names.
*
* @author <a href="http://restfb.com">Mark Allen</a>
* @since 1.6.3
*/
protected static class DefaultGraphFacebookExceptionMapper implements
FacebookExceptionMapper {
/**
* @see com.restfb.exception.FacebookExceptionMapper#exceptionForTypeAndMessage(java.lang.Integer,
* java.lang.String, java.lang.String)
*/
public FacebookException exceptionForTypeAndMessage(Integer errorCode,
String type, String message) {
if ("OAuthException".equals(type)
|| "OAuthAccessTokenException".equals(type))
return new FacebookOAuthException(type, message);
if ("QueryParseException".equals(type))
return new FacebookQueryParseException(type, message);
// Don't recognize this exception type? Just go with the standard
// FacebookGraphException.
return new FacebookGraphException(type, message);
}
}
/**
* Generate the parameter string to be included in the Facebook API request.
*
* @param parameters
* Arbitrary number of extra parameters to include in the
* request.
* @return The parameter string to include in the Facebook API request.
* @throws FacebookJsonMappingException
* If an error occurs when building the parameter string.
*/
protected String toParameterString(Parameter... parameters) {
if (!isBlank(accessToken))
parameters = parametersWithAdditionalParameter(
Parameter.with(ACCESS_TOKEN_PARAM_NAME, accessToken),
parameters);
parameters = parametersWithAdditionalParameter(
Parameter.with(FORMAT_PARAM_NAME, "json"), parameters);
StringBuilder parameterStringBuilder = new StringBuilder();
boolean first = true;
for (Parameter parameter : parameters) {
if (first)
first = false;
else
parameterStringBuilder.append("&");
parameterStringBuilder.append(urlEncode(parameter.name));
parameterStringBuilder.append("=");
parameterStringBuilder.append(urlEncodedValueForParameterName(
parameter.name, parameter.value));
}
return parameterStringBuilder.toString();
}
/**
* @see com.restfb.BaseFacebookClient#createEndpointForApiCall(java.lang.String,boolean)
*/
@Override
protected String createEndpointForApiCall(String apiCall,
boolean hasAttachment) {
trimToEmpty(apiCall).toLowerCase();
while (apiCall.startsWith("/"))
apiCall = apiCall.substring(1);
String baseUrl = getFacebookGraphEndpointUrl();
if (readOnlyApiCalls.contains(apiCall))
baseUrl = getFacebookReadOnlyEndpointUrl();
else if (hasAttachment && apiCall.endsWith("/videos"))
baseUrl = getFacebookGraphVideoEndpointUrl();
return format("%s/%s", baseUrl, apiCall);
}
/**
* Returns the base endpoint URL for the Graph API.
*
* @return The base endpoint URL for the Graph API.
*/
protected String getFacebookGraphEndpointUrl() {
return host;
}
/**
* Returns the base endpoint URL for the Graph API's video upload
* functionality.
*
* @return The base endpoint URL for the Graph API's video upload
* functionality.
* @since 1.6.5
*/
protected String getFacebookGraphVideoEndpointUrl() {
return FACEBOOK_GRAPH_VIDEO_ENDPOINT_URL;
}
/**
* @see com.restfb.BaseFacebookClient#getFacebookReadOnlyEndpointUrl()
*/
@Override
protected String getFacebookReadOnlyEndpointUrl() {
return FACEBOOK_READ_ONLY_ENDPOINT_URL;
}
/**
* @see com.restfb.FacebookClient#fetchConnection(java.lang.String,
* java.lang.Class, com.restfb.Parameter[])
*/
public <T> RestBAConnection<T> fetchConnectionRestBA(String connection,
Class<T> connectionType, long page) {
verifyParameterPresence("connection", connection);
verifyParameterPresence("connectionType", connectionType);
String request = makeRequest(connection + "&from=" + page * 10);
return new RestBAConnection<T>(this, request, connectionType,
connection, page);
}
public <T> T executeQuery(String query, Class<T> objectType) {
verifyParameterPresence("object", query);
verifyParameterPresence("objectType", objectType);
return jsonMapper.toJavaObject(makeRequest(query),
objectType);
}
}