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Adding memo deserialization

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This commit is contained in:
Nelson R. Perez 2017-09-25 22:53:30 -05:00
parent 302194539e
commit 040a53f408
5 changed files with 117 additions and 0 deletions
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2
graphenej/src/main/java/de/bitsharesmunich/graphenej/api/GetRelativeAccountHistory.java
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@ -20,6 +20,7 @@ import de.bitsharesmunich.graphenej.models.ApiCall;
import de.bitsharesmunich.graphenej.models.BaseResponse;
import de.bitsharesmunich.graphenej.models.HistoricalTransfer;
import de.bitsharesmunich.graphenej.models.WitnessResponse;
import de.bitsharesmunich.graphenej.objects.Memo;
import de.bitsharesmunich.graphenej.operations.TransferOperation;
/**
@ -116,6 +117,7 @@ public class GetRelativeAccountHistory extends BaseGrapheneHandler {
GsonBuilder gsonBuilder = new GsonBuilder();
gsonBuilder.registerTypeAdapter(TransferOperation.class, new TransferOperation.TransferDeserializer());
gsonBuilder.registerTypeAdapter(AssetAmount.class, new AssetAmount.AssetAmountDeserializer());
gsonBuilder.registerTypeAdapter(Memo.class, new Memo.MemoDeserializer());
WitnessResponse<List<HistoricalTransfer>> transfersResponse = gsonBuilder.create().fromJson(response, RelativeAccountHistoryResponse);
mListener.onSuccess(transfersResponse);
}

2
graphenej/src/main/java/de/bitsharesmunich/graphenej/api/SubscriptionMessagesHub.java
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@ -25,6 +25,7 @@ import de.bitsharesmunich.graphenej.models.ApiCall;
import de.bitsharesmunich.graphenej.models.DynamicGlobalProperties;
import de.bitsharesmunich.graphenej.models.SubscriptionResponse;
import de.bitsharesmunich.graphenej.models.WitnessResponse;
import de.bitsharesmunich.graphenej.objects.Memo;
import de.bitsharesmunich.graphenej.operations.LimitOrderCreateOperation;
import de.bitsharesmunich.graphenej.operations.TransferOperation;
@ -91,6 +92,7 @@ public class SubscriptionMessagesHub extends BaseGrapheneHandler implements Subs
builder.registerTypeAdapter(AssetAmount.class, new AssetAmount.AssetAmountDeserializer());
builder.registerTypeAdapter(UserAccount.class, new UserAccount.UserAccountSimpleDeserializer());
builder.registerTypeAdapter(DynamicGlobalProperties.class, new DynamicGlobalProperties.DynamicGlobalPropertiesDeserializer());
builder.registerTypeAdapter(Memo.class, new Memo.MemoDeserializer());
this.gson = builder.create();
}

34
graphenej/src/main/java/de/bitsharesmunich/graphenej/objects/Memo.java
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@ -1,17 +1,25 @@
package de.bitsharesmunich.graphenej.objects;
import com.google.common.primitives.Bytes;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import de.bitsharesmunich.graphenej.Address;
import de.bitsharesmunich.graphenej.PublicKey;
import de.bitsharesmunich.graphenej.Util;
import de.bitsharesmunich.graphenej.errors.ChecksumException;
import de.bitsharesmunich.graphenej.errors.MalformedAddressException;
import de.bitsharesmunich.graphenej.interfaces.ByteSerializable;
import de.bitsharesmunich.graphenej.interfaces.JsonSerializable;
import de.bitsharesmunich.graphenej.operations.TransferOperation;
import org.bitcoinj.core.ECKey;
import org.spongycastle.math.ec.ECPoint;
import java.lang.reflect.Type;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
@ -269,4 +277,30 @@ public class Memo implements ByteSerializable, JsonSerializable {
}
return memoObject;
}
/**
* Class used to deserialize a memo
*/
public static class MemoDeserializer implements JsonDeserializer<Memo> {
@Override
public Memo deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonObject = json.getAsJsonObject();
String fromAddress = jsonObject.get(KEY_FROM).getAsString();
String toAddress = jsonObject.get(KEY_TO).getAsString();
long nonce = jsonObject.get(KEY_NONCE).getAsLong();
String msg = jsonObject.get(KEY_MESSAGE).getAsString();
Memo memo = null;
try{
Address from = new Address(fromAddress);
Address to = new Address(toAddress);
byte[] message = Util.hexToBytes(msg);
memo = new Memo(from, to, nonce, message);
}catch(MalformedAddressException e){
System.out.println("MalformedAddressException. Msg: "+e.getMessage());
}
return memo;
}
}
}

7
graphenej/src/main/java/de/bitsharesmunich/graphenej/operations/TransferOperation.java
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@ -191,6 +191,13 @@ public class TransferOperation extends BaseOperation {
UserAccount from = new UserAccount(jsonObject.get(KEY_FROM).getAsString());
UserAccount to = new UserAccount(jsonObject.get(KEY_TO).getAsString());
TransferOperation transfer = new TransferOperation(from, to, amount, fee);
// If the transfer had a memo, deserialize it
if(jsonObject.has(KEY_MEMO)){
Memo memo = context.deserialize(jsonObject.get(KEY_MEMO), Memo.class);
transfer.setMemo(memo);
}
return transfer;
}
}

72
graphenej/src/test/java/de/bitsharesmunich/graphenej/api/GetRelativeAccountHistoryTest.java Normal file
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@ -0,0 +1,72 @@
package de.bitsharesmunich.graphenej.api;
import com.neovisionaries.ws.client.WebSocketException;
import org.junit.Test;
import java.util.List;
import de.bitsharesmunich.graphenej.UserAccount;
import de.bitsharesmunich.graphenej.interfaces.WitnessResponseListener;
import de.bitsharesmunich.graphenej.models.BaseResponse;
import de.bitsharesmunich.graphenej.models.HistoricalTransfer;
import de.bitsharesmunich.graphenej.models.WitnessResponse;
import de.bitsharesmunich.graphenej.operations.TransferOperation;
/**
* Created by nelson on 9/25/17.
*/
public class GetRelativeAccountHistoryTest extends BaseApiTest {
private final String TAG = this.getClass().getName();
private int HISTORICAL_TRANSFER_BATCH_SIZE = 10;
private final UserAccount bilthon_7 = new UserAccount("1.2.140994");
private int historicalTransferCount;
@Test
public void testRelativeAccountHistory(){
int start = 0;
GetRelativeAccountHistory mGetRelativeAccountHistory = new GetRelativeAccountHistory(bilthon_7, 0, HISTORICAL_TRANSFER_BATCH_SIZE, start, mTransferHistoryListener);
mWebSocket.addListener(mGetRelativeAccountHistory);
try{
mWebSocket.connect();
synchronized (this){
wait();
}
}catch (WebSocketException e) {
System.out.println("WebSocketException. Msg: " + e.getMessage());
} catch (InterruptedException e) {
System.out.println("InterruptedException. Msg: "+e.getMessage());
}
}
/**
* Callback activated once we get a response back from the full node telling us about the
* transfer history of the current account.
*/
private WitnessResponseListener mTransferHistoryListener = new WitnessResponseListener() {
@Override
public void onSuccess(WitnessResponse response) {
System.out.println("mTransferHistoryListener.onSuccess");
historicalTransferCount++;
WitnessResponse<List<HistoricalTransfer>> resp = response;
for(HistoricalTransfer historicalTransfer : resp.result){
if(historicalTransfer.getOperation() != null){
System.out.println("Got transfer operation!");
TransferOperation transferOperation = historicalTransfer.getOperation();
System.out.println(String.format("%s - > %s, memo: %s",
transferOperation.getFrom().getObjectId(),
transferOperation.getTo().getObjectId(),
transferOperation.getMemo() == null ? "*" : transferOperation.getMemo().getStringMessage()));
}
}
}
@Override
public void onError(BaseResponse.Error error) {
System.out.println("onError. Msg: "+error.message);
}
};
}