147 lines
6.3 KiB
Java
147 lines
6.3 KiB
Java
package de.bitsharesmunich.graphenej.api;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.reflect.TypeToken;
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import de.bitsharesmunich.graphenej.AssetAmount;
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import de.bitsharesmunich.graphenej.RPC;
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import de.bitsharesmunich.graphenej.TransferOperation;
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import de.bitsharesmunich.graphenej.UserAccount;
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import de.bitsharesmunich.graphenej.interfaces.WitnessResponseListener;
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import de.bitsharesmunich.graphenej.models.ApiCall;
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import de.bitsharesmunich.graphenej.models.BaseResponse;
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import de.bitsharesmunich.graphenej.models.HistoricalTransfer;
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import de.bitsharesmunich.graphenej.models.WitnessResponse;
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import com.neovisionaries.ws.client.WebSocket;
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import com.neovisionaries.ws.client.WebSocketAdapter;
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import com.neovisionaries.ws.client.WebSocketException;
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import com.neovisionaries.ws.client.WebSocketFrame;
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import java.io.Serializable;
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import java.lang.reflect.Type;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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/**
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* Class used to encapsulate the communication sequence used to retrieve the transaction history of
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* a given user.
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*/
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public class GetRelativeAccountHistory extends WebSocketAdapter {
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// Sequence of message ids
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private final static int LOGIN_ID = 1;
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private final static int GET_HISTORY_ID = 2;
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private final static int GET_HISTORY_DATA = 3;
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// Default value constants
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public static final int DEFAULT_STOP = 0;
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public static final int DEFAULT_START = 0;
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public static final int MAX_LIMIT = 100;
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// API call parameters
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private UserAccount mUserAccount;
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private int stop;
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private int limit;
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private int start;
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private WitnessResponseListener mListener;
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private int currentId = 1;
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private int apiId = -1;
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/**
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* Constructor that takes all possible parameters.
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* @param userAccount The user account to be queried
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* @param stop Sequence number of earliest operation
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* @param limit Maximum number of operations to retrieve (must not exceed 100)
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* @param start Sequence number of the most recent operation to retrieve
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* @param listener Listener to be notified with the result of this query
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*/
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public GetRelativeAccountHistory(UserAccount userAccount, int stop, int limit, int start, WitnessResponseListener listener){
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if(limit > MAX_LIMIT) limit = MAX_LIMIT;
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this.mUserAccount = userAccount;
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this.stop = stop;
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this.limit = limit;
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this.start = start;
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this.mListener = listener;
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}
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/**
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* Constructor that uses the default values, and sets the limit to its maximum possible value.
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* @param userAccount The user account to be queried
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* @param listener Listener to be notified with the result of this query
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*/
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public GetRelativeAccountHistory(UserAccount userAccount, WitnessResponseListener listener){
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this.mUserAccount = userAccount;
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this.stop = DEFAULT_STOP;
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this.limit = MAX_LIMIT;
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this.start = DEFAULT_START;
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this.mListener = listener;
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}
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@Override
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public void onConnected(WebSocket websocket, Map<String, List<String>> headers) throws Exception {
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ArrayList<Serializable> loginParams = new ArrayList<>();
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loginParams.add(null);
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loginParams.add(null);
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ApiCall loginCall = new ApiCall(1, RPC.CALL_LOGIN, loginParams, "2.0", currentId);
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websocket.sendText(loginCall.toJsonString());
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}
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@Override
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public void onTextFrame(WebSocket websocket, WebSocketFrame frame) throws Exception {
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String response = frame.getPayloadText();
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System.out.println("<<< "+response);
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Gson gson = new Gson();
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BaseResponse baseResponse = gson.fromJson(response, BaseResponse.class);
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if(baseResponse.error != null){
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mListener.onError(baseResponse.error);
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websocket.disconnect();
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}else{
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currentId++;
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ArrayList<Serializable> emptyParams = new ArrayList<>();
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if(baseResponse.id == LOGIN_ID){
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ApiCall getRelativeAccountHistoryId = new ApiCall(1, RPC.CALL_HISTORY, emptyParams, RPC.VERSION, currentId);
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websocket.sendText(getRelativeAccountHistoryId.toJsonString());
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}else if(baseResponse.id == GET_HISTORY_ID){
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Type ApiIdResponse = new TypeToken<WitnessResponse<Integer>>() {}.getType();
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WitnessResponse<Integer> witnessResponse = gson.fromJson(response, ApiIdResponse);
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apiId = witnessResponse.result.intValue();
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ArrayList<Serializable> params = new ArrayList<>();
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params.add(mUserAccount.toJsonString());
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params.add(this.stop);
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params.add(this.limit);
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params.add(this.start);
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ApiCall getRelativeAccountHistoryCall = new ApiCall(apiId, RPC.CALL_GET_RELATIVE_ACCOUNT_HISTORY, params, RPC.VERSION, currentId);
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websocket.sendText(getRelativeAccountHistoryCall.toJsonString());
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}else if(baseResponse.id == GET_HISTORY_DATA){
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System.out.println(frame.getPayloadText());
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Type RelativeAccountHistoryResponse = new TypeToken<WitnessResponse<List<HistoricalTransfer>>>(){}.getType();
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GsonBuilder gsonBuilder = new GsonBuilder();
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gsonBuilder.registerTypeAdapter(TransferOperation.class, new TransferOperation.TransferDeserializer());
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gsonBuilder.registerTypeAdapter(AssetAmount.class, new AssetAmount.AssetDeserializer());
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WitnessResponse<List<HistoricalTransfer>> transfersResponse = gsonBuilder.create().fromJson(response, RelativeAccountHistoryResponse);
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mListener.onSuccess(transfersResponse);
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websocket.disconnect();
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}
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}
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}
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@Override
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public void onFrameSent(WebSocket websocket, WebSocketFrame frame) throws Exception {
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if(frame.isTextFrame())
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System.out.println(">>> "+frame.getPayloadText());
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}
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@Override
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public void onError(WebSocket websocket, WebSocketException cause) throws Exception {
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System.out.println("onError. Msg: "+cause.getMessage());
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}
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@Override
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public void handleCallbackError(WebSocket websocket, Throwable cause) throws Exception {
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System.out.println("handleCallbackError. Msg: "+cause.getMessage());
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}
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}
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