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com.facebook.api.FacebookJsonRestClient Maven / Gradle / Ivy
package com.facebook.api;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.json.JSONException;
import org.json.JSONObject;
import com.facebook.api.schema.Listing;
/**
* A FacebookRestClient that uses the JSON result format. This means
* results from calls to the Facebook API are returned as
* JSON and
* transformed into Java Object's.
*/
public class FacebookJsonRestClient extends ExtensibleClient {
/**
* Constructor.
*
* @param apiKey your Facebook API key
* @param secret your 'secret' Facebook key
*/
public FacebookJsonRestClient(String apiKey, String secret) {
this(SERVER_URL, apiKey, secret, null);
}
/**
* Constructor.
*
* @param apiKey your Facebook API key
* @param secret your 'secret' Facebook key
* @param sessionKey the session-id to use
*/
public FacebookJsonRestClient(String apiKey, String secret, String sessionKey) {
this(SERVER_URL, apiKey, secret, sessionKey);
}
/**
* Constructor.
*
* @param serverAddr the URL of the Facebook API server to use
* @param apiKey your Facebook API key
* @param secret your 'secret' Facebook key
* @param sessionKey the session-id to use
*
* @throws MalformedURLException if you specify an invalid URL
*/
public FacebookJsonRestClient(String serverAddr, String apiKey, String secret,
String sessionKey) throws MalformedURLException {
this(new URL(serverAddr), apiKey, secret, sessionKey);
}
/**
* Constructor.
*
* @param serverUrl the URL of the Facebook API server to use
* @param apiKey your Facebook API key
* @param secret your 'secret' Facebook key
* @param sessionKey the session-id to use
*/
public FacebookJsonRestClient(URL serverUrl, String apiKey, String secret,
String sessionKey) {
super(serverUrl, apiKey, secret, sessionKey);
}
/**
* The response format in which results to FacebookMethod calls are returned
* @return the format: either XML, JSON, or null (API default)
*/
public String getResponseFormat() {
return "json";
}
/**
* Extracts a String from a result consisting entirely of a String.
* @param val
* @return the String
*/
public String extractString(Object val) {
try {
return (String) val;
} catch (ClassCastException cce) {
logException(cce);
return null;
}
}
/**
* Sets the session information (sessionKey) using the token from auth_createToken.
*
* @param authToken the token returned by auth_createToken or passed back to your callback_url.
* @return the session key
* @throws FacebookException
* @throws IOException
*/
public String auth_getSession(String authToken) throws FacebookException,
IOException {
if (null != this._sessionKey) {
return this._sessionKey;
}
JSONObject d = (JSONObject)
this.callMethod(FacebookMethod.AUTH_GET_SESSION,
new Pair("auth_token", authToken.toString()));
try {
this._sessionKey = (String) d.get("session_key");
Object uid = d.get("uid");
try {
this._userId = (Integer) uid;
} catch (ClassCastException cce) {
this._userId = Integer.parseInt((String) uid);
}
if (this.isDesktop()) {
this._sessionSecret = (String) d.get("secret");
}
}
catch (Exception ignored) {}
return this._sessionKey;
}
/**
* Parses the result of an API call from JSON into Java Objects.
* @param data an InputStream with the results of a request to the Facebook servers
* @param method the method
* @return a Java Object
* @throws FacebookException if data represents an error
* @throws IOException if data is not readable
* @see JSONObject
*/
protected Object parseCallResult(InputStream data, IFacebookMethod method) throws FacebookException, IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(data, "UTF-8"));
StringBuffer buffer = new StringBuffer();
String line;
while ((line = in.readLine()) != null) {
buffer.append(line);
}
String jsonResp = new String(buffer);
Object json = null;
try {
json = new JSONObject(jsonResp);
}
catch (Exception ignored) {}
if (isDebug()) {
log(method.methodName() + ": " + (null != json ? json.toString() : "null"));
}
if (json instanceof JSONObject) {
JSONObject jsonObj = (JSONObject) json;
try {
if (jsonObj.get("error_code") != null) {
Integer errorCode = (Integer) jsonObj.get("error_code");
String message = (String) jsonObj.get("error_msg");
throw new FacebookException(errorCode, message);
}
}
catch (JSONException e) {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_ERROR, e.getClass().getName() + ": " + e.getMessage());
}
}
return json;
}
/**
* Extracts a URL from a result that consists of a URL only.
* For JSON, that result is simply a String.
* @param url
* @return the URL
*/
protected URL extractURL(Object url) throws IOException {
if (!(url instanceof String)) {
return null;
}
return (null == url || "".equals(url)) ? null : new URL( (String) url);
}
/**
* Extracts an Integer from a result that consists of an Integer only.
* @param val
* @return the Integer
*/
protected int extractInt(Object val) {
try {
return (Integer) val;
} catch (ClassCastException cce) {
logException(cce);
return 0;
}
}
/**
* Extracts a Boolean from a result that consists of a Boolean only.
* @param val
* @return the Boolean
*/
protected boolean extractBoolean(Object val) {
try {
return (Boolean) val;
} catch (ClassCastException cce) {
logException(cce);
return false;
}
}
/**
* Extracts a Long from a result that consists of an Long only.
* @param val
* @return the Integer
*/
protected Long extractLong(Object val) {
try {
return (Long) val;
} catch (ClassCastException cce) {
logException(cce);
return null;
}
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#data_getUserPreference(java.lang.Integer)
*/
public String data_getUserPreference(Integer prefId) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#data_getUserPreferences()
*/
public Map data_getUserPreferences() throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#data_setUserPreference(java.lang.Integer, java.lang.String)
*/
public void data_setUserPreference(Integer prefId, String value) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#data_setUserPreferences(java.util.Map, boolean)
*/
public void data_setUserPreferences(Map values, boolean replace) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#fbml_setRefHandle(java.lang.String, java.lang.String)
*/
public void fbml_setRefHandle(String handle, String markup) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#marketplace_getListings(java.util.List, java.util.List)
*/
public List marketplace_getListings(List listingIds, List uids) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#marketplace_getSubCategories()
*/
public List marketplace_getSubCategories() throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#marketplace_search(com.facebook.api.MarketListingCategory, com.facebook.api.MarketListingSubcategory, java.lang.String)
*/
public List marketplace_search(MarketListingCategory category, MarketListingSubcategory subcategory, String searchTerm) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#sms_canSend()
*/
public boolean sms_canSend() throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#sms_canSend(java.lang.Long)
*/
public boolean sms_canSend(Long userId) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#sms_send(java.lang.String, java.lang.Integer, boolean)
*/
public Integer sms_send(String message, Integer smsSessionId, boolean makeNewSession) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
/* (non-Javadoc)
* @see com.facebook.api.IFacebookRestClient#sms_send(java.lang.Long, java.lang.String, java.lang.Integer, boolean)
*/
public Integer sms_send(Long userId, String message, Integer smsSessionId, boolean makeNewSession) throws FacebookException, IOException {
throw new FacebookException(ErrorCode.GEN_UNKNOWN_METHOD, "The FacebookJsonRestClient does not support this API call. " +
"Please use an instance of FacebookRestClient instead.");
}
}
