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package com.google.refine.model;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.codehaus.jackson.JsonFactory;
import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.JsonToken;
import org.json.JSONException;
import org.json.JSONWriter;
import com.google.refine.Jsonizable;
import com.google.refine.expr.HasFields;
import com.google.refine.util.Pool;
public class Recon implements HasFields, Jsonizable {
private static final String FREEBASE_SCHEMA_SPACE = "http://rdf.freebase.com/ns/type.object.id";
private static final String FREEBASE_IDENTIFIER_SPACE = "http://rdf.freebase.com/ns/type.object.mid";
static public enum Judgment {
None,
Matched,
New
}
static public String judgmentToString(Judgment judgment) {
if (judgment == Judgment.Matched) {
return "matched";
} else if (judgment == Judgment.New) {
return "new";
} else {
return "none";
}
}
static public Judgment stringToJudgment(String s) {
if ("matched".equals(s)) {
return Judgment.Matched;
} else if ("new".equals(s)) {
return Judgment.New;
} else {
return Judgment.None;
}
}
static final public int Feature_typeMatch = 0;
static final public int Feature_nameMatch = 1;
static final public int Feature_nameLevenshtein = 2;
static final public int Feature_nameWordDistance = 3;
static final public int Feature_qaResult = 4;
static final public int Feature_max = 5;
static final protected Map<String, Integer> s_featureMap = new HashMap<String, Integer>();
static {
s_featureMap.put("typeMatch", Feature_typeMatch);
s_featureMap.put("nameMatch", Feature_nameMatch);
s_featureMap.put("nameLevenshtein", Feature_nameLevenshtein);
s_featureMap.put("nameWordDistance", Feature_nameWordDistance);
s_featureMap.put("qaResult", Feature_qaResult);
}
final public long id;
public String service = "unknown";
public String identifierSpace = null;
public String schemaSpace = null;
public Object[] features = new Object[Feature_max];
public List<ReconCandidate> candidates;
public Judgment judgment = Judgment.None;
public String judgmentAction = "unknown";
public long judgmentHistoryEntry;
public int judgmentBatchSize = 0;
public ReconCandidate match = null;
public int matchRank = -1;
static public Recon makeFreebaseRecon(long judgmentHistoryEntry) {
return new Recon(
judgmentHistoryEntry,
FREEBASE_IDENTIFIER_SPACE,
FREEBASE_SCHEMA_SPACE);
}
public Recon(long judgmentHistoryEntry, String identifierSpace, String schemaSpace) {
id = System.currentTimeMillis() * 1000000 + Math.round(Math.random() * 1000000);
this.judgmentHistoryEntry = judgmentHistoryEntry;
this.identifierSpace = identifierSpace;
this.schemaSpace = schemaSpace;
}
protected Recon(long id, long judgmentHistoryEntry) {
this.id = id;
this.judgmentHistoryEntry = judgmentHistoryEntry;
}
public Recon dup() {
Recon r = new Recon(id, judgmentHistoryEntry);
r.identifierSpace = identifierSpace;
r.schemaSpace = schemaSpace;
copyTo(r);
return r;
}
public Recon dup(long judgmentHistoryEntry) {
Recon r = new Recon(judgmentHistoryEntry, identifierSpace, schemaSpace);
copyTo(r);
return r;
}
protected void copyTo(Recon r) {
System.arraycopy(features, 0, r.features, 0, features.length);
if (candidates != null) {
r.candidates = new ArrayList<ReconCandidate>(candidates);
}
r.service = service;
r.judgment = judgment;
r.judgmentAction = judgmentAction;
r.judgmentBatchSize = judgmentBatchSize;
r.match = match;
r.matchRank = matchRank;
}
public void addCandidate(ReconCandidate candidate) {
if (candidates == null) {
candidates = new ArrayList<ReconCandidate>(3);
}
candidates.add(candidate);
}
public ReconCandidate getBestCandidate() {
if (candidates != null && candidates.size() > 0) {
return candidates.get(0);
}
return null;
}
public Object getFeature(int feature) {
return feature < features.length ? features[feature] : null;
}
public void setFeature(int feature, Object v) {
if (feature >= features.length) {
if (feature >= Feature_max) {
return;
}
// We deserialized this object from an older version of the class
// that had fewer features, so we can just try to extend it
Object[] newFeatures = new Object[Feature_max];
System.arraycopy(features, 0, newFeatures, 0, features.length);
features = newFeatures;
}
features[feature] = v;
}
@Override
public Object getField(String name, Properties bindings) {
if ("id".equals(name)) {
return id;
} else if ("best".equals(name)) {
return candidates != null && candidates.size() > 0 ? candidates.get(0) : null;
} else if ("candidates".equals(name)) {
return candidates;
} else if ("judgment".equals(name) || "judgement".equals(name)) {
return judgmentToString();
} else if ("judgmentAction".equals(name) || "judgementAction".equals(name)) {
return judgmentAction;
} else if ("judgmentHistoryEntry".equals(name) || "judgementHistoryEntry".equals(name)) {
return judgmentHistoryEntry;
} else if ("judgmentBatchSize".equals(name) || "judgementBatchSize".equals(name)) {
return judgmentBatchSize;
} else if ("matched".equals(name)) {
return judgment == Judgment.Matched;
} else if ("new".equals(name)) {
return judgment == Judgment.New;
} else if ("match".equals(name)) {
return match;
} else if ("matchRank".equals(name)) {
return matchRank;
} else if ("features".equals(name)) {
return new Features();
} else if ("service".equals(name)) {
return service;
} else if ("identifierSpace".equals(name)) {
return identifierSpace;
} else if ("schemaSpace".equals(name)) {
return schemaSpace;
}
return null;
}
@Override
public boolean fieldAlsoHasFields(String name) {
return "match".equals(name) || "best".equals(name);
}
protected String judgmentToString() {
return judgmentToString(judgment);
}
public class Features implements HasFields {
@Override
public Object getField(String name, Properties bindings) {
int index = s_featureMap.containsKey(name) ? s_featureMap.get(name) : -1;
return (index >= 0 && index < features.length) ? features[index] : null;
}
@Override
public boolean fieldAlsoHasFields(String name) {
return false;
}
}
@Override
public void write(JSONWriter writer, Properties options)
throws JSONException {
boolean saveMode = "save".equals(options.getProperty("mode"));
writer.object();
writer.key("id"); writer.value(id);
if (saveMode) {
writer.key("judgmentHistoryEntry"); writer.value(judgmentHistoryEntry);
}
writer.key("service"); writer.value(service);
writer.key("identifierSpace"); writer.value(identifierSpace);
writer.key("schemaSpace"); writer.value(schemaSpace);
writer.key("j"); writer.value(judgmentToString());
if (match != null) {
writer.key("m");
match.write(writer, options);
}
if (match == null || saveMode) {
writer.key("c"); writer.array();
if (candidates != null) {
for (ReconCandidate c : candidates) {
c.write(writer, options);
}
}
writer.endArray();
}
if (saveMode) {
writer.key("f");
writer.array();
for (Object o : features) {
writer.value(o);
}
writer.endArray();
writer.key("judgmentAction"); writer.value(judgmentAction);
writer.key("judgmentBatchSize"); writer.value(judgmentBatchSize);
if (match != null) {
writer.key("matchRank"); writer.value(matchRank);
}
}
writer.endObject();
}
static public Recon loadStreaming(String s, Pool pool) throws Exception {
JsonFactory jsonFactory = new JsonFactory();
JsonParser jp = jsonFactory.createJsonParser(s);
if (jp.nextToken() != JsonToken.START_OBJECT) {
return null;
}
return loadStreaming(jp, pool);
}
static public Recon loadStreaming(JsonParser jp, Pool pool) throws Exception {
JsonToken t = jp.getCurrentToken();
if (t == JsonToken.VALUE_NULL || t != JsonToken.START_OBJECT) {
return null;
}
Recon recon = null;
long id = -1;
long judgmentHistoryEntry = -1;
while (jp.nextToken() != JsonToken.END_OBJECT) {
String fieldName = jp.getCurrentName();
jp.nextToken();
if ("id".equals(fieldName)) {
id = jp.getLongValue();
} else if ("judgmentHistoryEntry".equals(fieldName)) {
judgmentHistoryEntry = jp.getLongValue();
if (recon != null) {
recon.judgmentHistoryEntry = judgmentHistoryEntry;
}
} else {
if (recon == null) {
recon = new Recon(id, judgmentHistoryEntry);
}
if ("j".equals(fieldName)) {
recon.judgment = stringToJudgment(jp.getText());
} else if ("m".equals(fieldName)) {
if (jp.getCurrentToken() == JsonToken.VALUE_STRING) {
// legacy case
String candidateID = jp.getText();
recon.match = pool.getReconCandidate(candidateID);
} else {
recon.match = ReconCandidate.loadStreaming(jp);
}
} else if ("f".equals(fieldName)) {
if (jp.getCurrentToken() != JsonToken.START_ARRAY) {
return null;
}
int feature = 0;
while (jp.nextToken() != JsonToken.END_ARRAY) {
if (feature < recon.features.length) {
JsonToken token = jp.getCurrentToken();
if (token == JsonToken.VALUE_STRING) {
recon.features[feature++] = jp.getText();
} else if (token == JsonToken.VALUE_NUMBER_INT) {
recon.features[feature++] = jp.getLongValue();
} else if (token == JsonToken.VALUE_NUMBER_FLOAT) {
recon.features[feature++] = jp.getDoubleValue();
} else if (token == JsonToken.VALUE_FALSE) {
recon.features[feature++] = false;
} else if (token == JsonToken.VALUE_TRUE) {
recon.features[feature++] = true;
}
}
}
} else if ("c".equals(fieldName)) {
if (jp.getCurrentToken() != JsonToken.START_ARRAY) {
return null;
}
while (jp.nextToken() != JsonToken.END_ARRAY) {
if (jp.getCurrentToken() == JsonToken.VALUE_STRING) {
// legacy case
String candidateID = jp.getText();
recon.addCandidate(pool.getReconCandidate(candidateID));
} else {
recon.addCandidate(ReconCandidate.loadStreaming(jp));
}
}
} else if ("service".equals(fieldName)) {
recon.service = jp.getText();
} else if ("identifierSpace".equals(fieldName)) {
recon.identifierSpace = jp.getText();
if ("null".equals(recon.identifierSpace)) {
recon.identifierSpace = FREEBASE_IDENTIFIER_SPACE;
}
} else if ("schemaSpace".equals(fieldName)) {
recon.schemaSpace = jp.getText();
if ("null".equals(recon.schemaSpace)) {
recon.schemaSpace = FREEBASE_SCHEMA_SPACE;
}
} else if ("judgmentAction".equals(fieldName)) {
recon.judgmentAction = jp.getText();
} else if ("judgmentBatchSize".equals(fieldName)) {
recon.judgmentBatchSize = jp.getIntValue();
} else if ("matchRank".equals(fieldName)) {
recon.matchRank = jp.getIntValue();
}
}
}
return recon;
}
}