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Commit68bbb4c

Browse files
committed
Providers refactored
Contract provider implementationBasic java native HttpExecutor implementationBasic providerDTOs provided
1 parent1f76be1 commit68bbb4c

26 files changed

+544
-221
lines changed

‎pom.xml‎

Lines changed: 17 additions & 40 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,4 @@
11
<?xml version="1.0" encoding="UTF-8"?>
2-
32
<projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
@@ -8,58 +7,36 @@
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<artifactId>etherscan</artifactId>
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<version>1.0.0</version>
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<name>etherscan</name>
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<!-- FIXME change it to the project's website-->
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<url>http://www.example.com</url>
10+
<name>etherscan-api</name>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
17-
<maven.compiler.source>1.7</maven.compiler.source>
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<maven.compiler.target>1.7</maven.compiler.target>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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</properties>
2017

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<dependencies>
2219
<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.11</version>
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<version>4.12</version>
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<scope>test</scope>
2724
</dependency>
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<dependency>
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<groupId>org.apache.httpcomponents</groupId>
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<artifactId>httpclient</artifactId>
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<version>4.5.6</version>
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</dependency>
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<dependency>
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<groupId>com.jsoniter</groupId>
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<artifactId>jsoniter</artifactId>
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<version>0.9.19</version>
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</dependency>
2837
</dependencies>
2938

3039
<build>
31-
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom)-->
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<plugins>
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>3.0.0</version>
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</plugin>
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<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging-->
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.7.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.20.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.2</version>
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</plugin>
62-
</plugins>
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</pluginManagement>
40+
6441
</build>
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</project>

‎src/main/java/io/api/App.java‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,15 @@
11
packageio.api;
22

3+
importio.api.core.EtherScanApi;
4+
35
/**
46
*
57
*/
68
publicclassApp {
79
publicstaticvoidmain(String[]args) {
810
System.out.println("Hello World!");
11+
EtherScanApiapi =newEtherScanApi(args[0]);
12+
Stringabi =api.contract().contractAbi("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413");
13+
inti =abi.length();
914
}
1015
}

‎src/main/java/io/api/core/BasicProvider.java‎

Lines changed: 0 additions & 19 deletions
This file was deleted.

‎src/main/java/io/api/core/EtherScanApi.java‎

Lines changed: 41 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,12 @@
11
packageio.api.core;
22

3+
importio.api.core.impl.AccountProvider;
4+
importio.api.core.impl.ContractProvider;
5+
importio.api.model.EthereumNetwork;
6+
7+
importjava.util.HashMap;
8+
importjava.util.Map;
9+
310
/**
411
* ! NO DESCRIPTION !
512
*
@@ -8,4 +15,38 @@
815
*/
916
publicclassEtherScanApi {
1017

18+
privatestaticfinalMap<String,String>HEADERS =newHashMap<>();
19+
20+
static {
21+
HEADERS.put("accept-language","en,ru;q=0.9");
22+
HEADERS.put("accept-encoding","gzip, deflate, br");
23+
HEADERS.put("user-agent","Mozilla/5.0 (Windows NT 10.0; WOW64) Chrome/68.0.3440.106");
24+
HEADERS.put("cache-control","max-age=0");
25+
}
26+
27+
privatefinalContractProvidercontract;
28+
privatefinalAccountProvideraccount;
29+
30+
publicEtherScanApi(finalStringapiKey) {
31+
this(apiKey,EthereumNetwork.MAINNET);
32+
}
33+
34+
publicEtherScanApi(finalStringapiKey,
35+
finalEthereumNetworknetwork) {
36+
finalEthereumNetworkusedNetwork = (network ==null)
37+
?EthereumNetwork.MAINNET
38+
:network;
39+
40+
finalStringurl ="https://" +usedNetwork.getDomain() +".etherscan.io/api" +"?apikey=" +apiKey;
41+
this.contract =newContractProvider(url,HEADERS);
42+
this.account =newAccountProvider(url,HEADERS);
43+
}
44+
45+
publicContractProvidercontract() {
46+
returncontract;
47+
}
48+
49+
publicAccountProvideraccount() {
50+
returnaccount;
51+
}
1152
}
Lines changed: 51 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,51 @@
1+
packageio.api.core;
2+
3+
importio.api.model.Balance;
4+
importio.api.model.Block;
5+
importio.api.model.Transaction;
6+
7+
importjava.util.List;
8+
importjava.util.Optional;
9+
10+
/**
11+
* EtherScan - API Descriptions
12+
* https://etherscan.io/apis#accounts
13+
*
14+
* @author GoodforGod
15+
* @since 28.10.2018
16+
*/
17+
publicinterfaceIAccountProvider {
18+
19+
/** Address ETH balance */
20+
Optional<Balance>balance(Stringaddress);
21+
22+
/**
23+
* Maximum 20 address for batch request
24+
* If address > 20, then there will be more than 1 request
25+
*/
26+
List<Balance>balances(List<String>addresses);
27+
28+
/** All txs */
29+
List<Transaction>txs(Stringaddress);
30+
/** Only last 10000 txs */
31+
List<Transaction>txs(Stringaddress,intstartBlock);
32+
/** Only last 10000 txs */
33+
List<Transaction>txs(Stringaddress,intstartBlock,intendBlock);
34+
35+
/** All internal txs */
36+
List<Transaction>txsInternal(Stringaddress);
37+
/** Only last 10000 internal txs */
38+
List<Transaction>txsInternal(Stringaddress,intstartBlock);
39+
/** Only last 10000 internal txs */
40+
List<Transaction>txsInternal(Stringaddress,intstartBlock,intendBlock);
41+
42+
/** All token txs */
43+
List<Transaction>txsToken(Stringaddress);
44+
/** Only last 10000 token txs */
45+
List<Transaction>txsToken(Stringaddress,intstartBlock);
46+
/** Only last 10000 token txs */
47+
List<Transaction>txsToken(Stringaddress,intstartBlock,intendBlock);
48+
49+
/** All blocks mined by address */
50+
List<Block>minedBlocks(Stringaddress);
51+
}

‎src/main/java/io/api/core/contract/IContractProvider.java‎renamed to ‎src/main/java/io/api/core/IContractProvider.java‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
packageio.api.core.contract;
1+
packageio.api.core;
22

33
/**
44
* ! NO DESCRIPTION !
@@ -8,4 +8,6 @@
88
*/
99
publicinterfaceIContractProvider {
1010

11+
/** Get Verified Contract Sources */
12+
StringcontractAbi(Stringaddress);
1113
}

‎src/main/java/io/api/core/account/IAccountProvider.java‎

Lines changed: 0 additions & 39 deletions
This file was deleted.

‎src/main/java/io/api/core/account/impl/AccountProvider.java‎

Lines changed: 0 additions & 16 deletions
This file was deleted.

‎src/main/java/io/api/core/contract/impl/ContractProvider.java‎

Lines changed: 0 additions & 17 deletions
This file was deleted.
Lines changed: 47 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,47 @@
1+
packageio.api.core.executor;
2+
3+
importjava.io.BufferedReader;
4+
importjava.io.IOException;
5+
importjava.io.InputStreamReader;
6+
importjava.net.HttpURLConnection;
7+
importjava.net.URL;
8+
importjava.util.Map;
9+
10+
importstaticjava.net.HttpURLConnection.HTTP_MOVED_PERM;
11+
importstaticjava.net.HttpURLConnection.HTTP_MOVED_TEMP;
12+
13+
/**
14+
* ! NO DESCRIPTION !
15+
*
16+
* @author GoodforGod
17+
* @since 28.10.2018
18+
*/
19+
publicclassHttpExecutor {
20+
21+
publicStringget(finalStringurlAsString,
22+
finalMap<String,String>headers)throwsIOException {
23+
24+
finalURLurl =newURL(urlAsString);
25+
finalHttpURLConnectionconnection = (HttpURLConnection)url.openConnection();
26+
connection.setRequestMethod("GET");
27+
headers.forEach(connection::setRequestProperty);
28+
connection.setConnectTimeout(30000);
29+
30+
finalintstatus =connection.getResponseCode();
31+
if (status ==HTTP_MOVED_TEMP ||status ==HTTP_MOVED_PERM) {
32+
finalStringlocation =connection.getHeaderField("Location");
33+
returnget(location,headers);
34+
}
35+
36+
finalBufferedReaderin =newBufferedReader(newInputStreamReader(connection.getInputStream()));
37+
StringinputLine;
38+
finalStringBuildercontent =newStringBuilder();
39+
while ((inputLine =in.readLine()) !=null)
40+
content.append(inputLine);
41+
42+
in.close();
43+
connection.disconnect();
44+
45+
returncontent.toString();
46+
}
47+
}

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