/
PoloniexService.java
53 lines (39 loc) · 1.76 KB
/
PoloniexService.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
package com.ethercamp.feedreporter.service;
import com.ethercamp.feedreporter.model.PoloniexInstrument;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.RestTemplate;
import java.util.*;
import static org.springframework.http.HttpMethod.GET;
public class PoloniexService implements DataFeed {
private static final Logger log = LoggerFactory.getLogger("general");
@Override
public List<MarketData> getLastData(Collection<MarketAsset> assets) {
List<MarketData> ret = new ArrayList<>();
RestTemplate restTemplate = new RestTemplate();
String rpcEnd = "https://poloniex.com/public?command=returnTicker";
HttpHeaders headers = new HttpHeaders();
HttpEntity entity = new HttpEntity(headers);
ResponseEntity<Map<String, PoloniexInstrument>> response = null;
try {
response = restTemplate.exchange(rpcEnd, GET, entity,
new ParameterizedTypeReference<Map<String, PoloniexInstrument>>(){});
} catch (HttpClientErrorException ex) {
if (ex.getStatusCode().value() >= 400) {
}
throw ex;
}
Map<String, PoloniexInstrument> output = response.getBody();
for (MarketAsset asset : assets) {
PoloniexInstrument pi = output.get(asset.getSymbol());
ret.add(new MarketData(asset, new Date(), Double.parseDouble(pi.getLast())));
}
return ret;
}
}