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HowToKB/src/main/java/kb/howtokb/reader/TaskFrameReader.java
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package kb.howtokb.reader; | |
import java.io.BufferedReader; | |
import java.io.FileReader; | |
import java.io.IOException; | |
import java.util.ArrayList; | |
import java.util.Iterator; | |
import org.json.simple.JSONArray; | |
import org.json.simple.JSONObject; | |
import org.json.simple.parser.JSONParser; | |
import org.json.simple.parser.ParseException; | |
import kb.howtokb.taskframe.WikiHowTask; | |
import kb.howtokb.taskframe.WikiHowTaskFrame; | |
public class TaskFrameReader { | |
static JSONParser parser = new JSONParser(); | |
// Read json file and return all activity frame object | |
// TO DO | |
// ====================================================================== | |
/** | |
* Return list of task frame extract from file with json format | |
* | |
* @param directory | |
* that saves task frame in json format | |
* @return a list of task frame | |
* @throws IOException | |
* @throws ClassNotFoundException | |
* @throws ParseException | |
*/ | |
public static ArrayList<WikiHowTaskFrame> extractWikiHowTaskFrameFromJSONFile(String directory) | |
throws IOException, ClassNotFoundException, ParseException { | |
ArrayList<WikiHowTaskFrame> allframe = new ArrayList<>(); | |
try (BufferedReader br = new BufferedReader(new FileReader(directory))) { | |
String sCurrentLine; | |
while ((sCurrentLine = br.readLine()) != null) { | |
WikiHowTaskFrame newframe = jsonToWikiHowTaskFrame(sCurrentLine); | |
allframe.add(newframe); | |
} | |
} | |
return allframe; | |
} | |
//Read a string in json format and return an activity frame | |
public static WikiHowTaskFrame jsonToWikiHowTaskFrame(String jsonStr) throws ParseException { | |
return jsonToWikiHowTaskFrame((JSONObject) parser.parse(jsonStr)); | |
} | |
// Read an Json object to transfer to activity frame | |
@SuppressWarnings("unchecked") | |
public static WikiHowTaskFrame jsonToWikiHowTaskFrame(JSONObject obj) { | |
// Extract id | |
int idframe = (int) (long) obj.get("id"); | |
// Extract list of location | |
ArrayList<String> location = new ArrayList<>(); | |
JSONArray locationJ = (JSONArray) obj.get("location"); | |
Iterator<String> iteratorC = locationJ.iterator(); | |
while (iteratorC.hasNext()) { | |
location.add(iteratorC.next()); | |
} | |
// Extract list of temporal | |
ArrayList<String> temporal = new ArrayList<>(); | |
JSONArray temporalJ = (JSONArray) obj.get("temporal"); | |
Iterator<String> iteratorT = temporalJ.iterator(); | |
while (iteratorT.hasNext()) { | |
temporal.add(iteratorT.next()); | |
} | |
// Extract list of part A | |
ArrayList<String> partA = new ArrayList<>(); | |
JSONArray partAJ = (JSONArray) obj.get("part-agent"); | |
Iterator<String> iteratorA = partAJ.iterator(); | |
while (iteratorA.hasNext()) { | |
partA.add(iteratorA.next()); | |
} | |
// Extract list of part O | |
ArrayList<String> partO = new ArrayList<>(); | |
JSONArray partOJ = (JSONArray) obj.get("part-object"); | |
Iterator<String> iteratorO = partOJ.iterator(); | |
while (iteratorO.hasNext()) { | |
partO.add(iteratorO.next()); | |
} | |
// Activity extraction | |
JSONObject actJ = (JSONObject) obj.get("activity"); | |
// id | |
int id = (int) (long) actJ.get("id"); | |
// verb | |
String verb = (String) actJ.get("verb"); | |
// object | |
String object = (String) actJ.get("object"); | |
// ori verb | |
String oriverb = (String) actJ.get("ori-verb"); | |
// ori-object | |
String oriobject = (String) actJ.get("ori-object"); | |
// image | |
String image = (String) actJ.get("image"); | |
// cate id | |
String cateid = (String) actJ.get("categoryid"); | |
// link id | |
String linkid = (String) actJ.get("linkid"); | |
// view | |
int view = (int) (long) actJ.get("view"); | |
// rate | |
double rate = (double) (double) actJ.get("rating"); | |
// cluster id | |
int clusterid = (int) (long) actJ.get("clusterid"); | |
// cluster name | |
String clustername = (String) actJ.get("clustername"); | |
// video | |
String video = (String) actJ.get("video"); | |
// parent | |
String parent = (String) actJ.get("parent"); | |
// prev | |
String prev = (String) actJ.get("prev"); | |
// next | |
String next = (String) actJ.get("next"); | |
// list of sub-activity | |
ArrayList<Integer> children = new ArrayList<>(); | |
JSONArray childrenJ = (JSONArray) actJ.get("sub-activity"); | |
Iterator<Long> iteratorS = childrenJ.iterator(); | |
while (iteratorS.hasNext()) { | |
children.add((int) (long) iteratorS.next()); | |
} | |
WikiHowTask newact = new WikiHowTask(id, verb, object, oriverb, oriobject, cateid, linkid, rate, view, image, | |
clusterid, clustername, video, children, parent, prev, next); | |
return (new WikiHowTaskFrame(idframe, newact, location, temporal, partA, partO)); | |
} | |
} |