cloudacademy / java-tdd-bitcoinconverter / #30

Committed 26 Jul 2023 06:37AM CUT coverage: 91.176%. Remained the same

Build # #30

Build Type

push

Committed by

Commit Message

added talisman pre-commit

Run Details

31 of 34 relevant lines covered (91.18%)

0.91 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

91.18

/src/main/java/com/cloudacademy/bitcoin/ConverterSvc.java

package com.cloudacademy.bitcoin;

import java.io.IOException;
import java.text.ParseException;

import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.impl.client.HttpClients;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

import java.text.NumberFormat;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

public final class ConverterSvc {
    static final String BITCOIN_CURRENTPRICE_URL = "https://api.coindesk.com/v1/bpi/currentprice.json";
    private final HttpGet httpget = new HttpGet(BITCOIN_CURRENTPRICE_URL);

    private CloseableHttpClient httpclient;

    /*
    //curl -s https://api.coindesk.com/v1/bpi/currentprice.json | jq .
    //example data json response from coindesk api:
    {
        "time": {
            "updated": "Oct 15, 2020 22:55:00 UTC",
            "updatedISO": "2020-10-15T22:55:00+00:00",
            "updateduk": "Oct 15, 2020 at 23:55 BST"
        },
        "disclaimer": "This data was produced from the CoinDesk Bitcoin Price Index (USD)",
        "chartName": "Bitcoin",
        "bpi": {
            "USD": {
            "code": "USD",
            "symbol": "&#36;",
            "rate": "11,486.5341",
            "description": "United States Dollar",
            "rate_float": 11486.5341
            },
            "GBP": {
            "code": "GBP",
            "symbol": "&pound;",
            "rate": "8,900.8693",
            "description": "British Pound Sterling",
            "rate_float": 8900.8693
            },
            "EUR": {
            "code": "EUR",
            "symbol": "&euro;",
            "rate": "9,809.3278",
            "description": "Euro",
            "rate_float": 9809.3278
            }
        }
    }
    */

    public ConverterSvc() {
        this.httpclient = HttpClients.createDefault();
    }

    public ConverterSvc(final CloseableHttpClient httpClient) {
        this.httpclient = httpClient;
    }

    public enum Currency {
        USD,
        GBP,
        EUR
    }

    public double getExchangeRate(final Currency currency) {
        double rate = 0;

        try (CloseableHttpResponse response = this.httpclient.execute(httpget)) {
            switch (response.getStatusLine().getStatusCode()) {
                case org.apache.http.HttpStatus.SC_OK:
                    InputStream inputStream = response.getEntity().getContent();
                    var json = new BufferedReader(new InputStreamReader(inputStream));

                    @SuppressWarnings("deprecation")
                    JsonObject jsonObject = new JsonParser().parse(json).getAsJsonObject();
                    String n = jsonObject.get("bpi").getAsJsonObject().get(currency.toString()).getAsJsonObject().get("rate").getAsString();
                    NumberFormat nf = NumberFormat.getInstance();
                    rate = nf.parse(n).doubleValue();

                    break;
                default:
                    rate = -1;
            }
        } catch (IOException | ParseException ex) {
            rate = -1;
        }

        return rate;
    }

    public double convertBitcoins(final Currency currency, final double coins) throws IllegalArgumentException {
        double dollars = 0;

        if (coins < 0) {
            throw new IllegalArgumentException("Number of coins must not be less than zero");
        }

        var exchangeRate = getExchangeRate(currency);

        if (exchangeRate >= 0) {
            dollars = exchangeRate * coins;
        } else {
            dollars = -1;
        }

        return dollars;
    }
}

1	package com.cloudacademy.bitcoin;
2
3	import java.io.IOException;
4	import java.text.ParseException;
5
6	import org.apache.http.client.methods.HttpGet;
7	import org.apache.http.impl.client.CloseableHttpClient;
8	import org.apache.http.client.methods.CloseableHttpResponse;
9	import org.apache.http.impl.client.HttpClients;
10
11	import com.google.gson.JsonObject;
12	import com.google.gson.JsonParser;
13
14	import java.text.NumberFormat;
15	import java.io.BufferedReader;
16	import java.io.InputStream;
17	import java.io.InputStreamReader;
18
19	public final class ConverterSvc {
20	static final String BITCOIN_CURRENTPRICE_URL = "https://api.coindesk.com/v1/bpi/currentprice.json";
21	private final HttpGet httpget = new HttpGet(BITCOIN_CURRENTPRICE_URL);	1✔
22
23	private CloseableHttpClient httpclient;
24
25	/*
26	//curl -s https://api.coindesk.com/v1/bpi/currentprice.json \| jq .
27	//example data json response from coindesk api:
28	{
29	"time": {
30	"updated": "Oct 15, 2020 22:55:00 UTC",
31	"updatedISO": "2020-10-15T22:55:00+00:00",
32	"updateduk": "Oct 15, 2020 at 23:55 BST"
33	},
34	"disclaimer": "This data was produced from the CoinDesk Bitcoin Price Index (USD)",
35	"chartName": "Bitcoin",
36	"bpi": {
37	"USD": {
38	"code": "USD",
39	"symbol": "$",
40	"rate": "11,486.5341",
41	"description": "United States Dollar",
42	"rate_float": 11486.5341
43	},
44	"GBP": {
45	"code": "GBP",
46	"symbol": "£",
47	"rate": "8,900.8693",
48	"description": "British Pound Sterling",
49	"rate_float": 8900.8693
50	},
51	"EUR": {
52	"code": "EUR",
53	"symbol": "€",
54	"rate": "9,809.3278",
55	"description": "Euro",
56	"rate_float": 9809.3278
57	}
58	}
59	}
60	*/
61
62	public ConverterSvc() {	×
63	this.httpclient = HttpClients.createDefault();	×
64	}	×
65
66	public ConverterSvc(final CloseableHttpClient httpClient) {	1✔
67	this.httpclient = httpClient;	1✔
68	}	1✔
69
70	public enum Currency {	1✔
71	USD,	1✔
72	GBP,	1✔
73	EUR	1✔
74	}
75
76	public double getExchangeRate(final Currency currency) {
77	double rate = 0;	1✔
78
79	try (CloseableHttpResponse response = this.httpclient.execute(httpget)) {	1✔
80	switch (response.getStatusLine().getStatusCode()) {	1✔
81	case org.apache.http.HttpStatus.SC_OK:
82	InputStream inputStream = response.getEntity().getContent();	1✔
83	var json = new BufferedReader(new InputStreamReader(inputStream));	1✔
84
85	@SuppressWarnings("deprecation")
86	JsonObject jsonObject = new JsonParser().parse(json).getAsJsonObject();	1✔
87	String n = jsonObject.get("bpi").getAsJsonObject().get(currency.toString()).getAsJsonObject().get("rate").getAsString();	1✔
88	NumberFormat nf = NumberFormat.getInstance();	1✔
89	rate = nf.parse(n).doubleValue();	1✔
90
91	break;	1✔
92	default:
93	rate = -1;	1✔
94	}
95	} catch (IOException \| ParseException ex) {	1✔
96	rate = -1;	1✔
97	}	1✔
98
99	return rate;	1✔
100	}
101
102	public double convertBitcoins(final Currency currency, final double coins) throws IllegalArgumentException {
103	double dollars = 0;	1✔
104
105	if (coins < 0) {	1✔
106	throw new IllegalArgumentException("Number of coins must not be less than zero");	1✔
107	}
108
109	var exchangeRate = getExchangeRate(currency);	1✔
110
111	if (exchangeRate >= 0) {	1✔
112	dollars = exchangeRate * coins;	1✔
113	} else {
114	dollars = -1;	1✔
115	}
116
117	return dollars;	1✔
118	}
119	}

cloudacademy / java-tdd-bitcoinconverter / #30

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous