com.yandex.money.api.methods.OperationDetails Maven / Gradle / Ivy

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This Java library contains classes that allows you to do payments using Yandex.Money public API.
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package com.yandex.money.api.methods;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
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 com.yandex.money.api.model.Error;
import com.yandex.money.api.model.Operation;
import com.yandex.money.api.net.HostsProvider;
import com.yandex.money.api.net.MethodRequest;
import com.yandex.money.api.net.MethodResponse;
import com.yandex.money.api.net.PostRequestBodyBuffer;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Type;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * Operation details result.
 *
 * @author Roman Tsirulnikov ([email protected])
 */
public class OperationDetails implements MethodResponse {

    private final Error error;
    private final Operation operation;

    /**
     * Constructor.
     *
     * @param error error code
     * @param operation operation
     */
    public OperationDetails(Error error, Operation operation) {
        this.error = error;
        this.operation = operation;
    }

    @Override
    public String toString() {
        return "OperationDetails{" +
                "error=" + error +
                ", operation=" + operation +
                '}';
    }

    public Error getError() {
        return error;
    }

    public Operation getOperation() {
        return operation;
    }

    /**
     * Requests for specific operation details.
     * 
     * Authorized session required.
     *
     * @see com.yandex.money.api.net.OAuth2Session
     */
    public static class Request implements MethodRequest {

        private final String operationId;

        /**
         * Constructor.
         *
         * @param operationId operation's id
         */
        public Request(String operationId) {
            if (operationId == null || operationId.isEmpty()) {
                throw new IllegalArgumentException("operationId is null or empty");
            }
            this.operationId = operationId;
        }

        @Override
        public URL requestURL(HostsProvider hostsProvider) throws MalformedURLException {
            return new URL(hostsProvider.getMoneyApi() + "/operation-details");
        }

        @Override
        public OperationDetails parseResponse(InputStream inputStream) {
            return buildGson().fromJson(new InputStreamReader(inputStream), OperationDetails.class);
        }

        @Override
        public PostRequestBodyBuffer buildParameters() throws IOException {
            return new PostRequestBodyBuffer()
                    .addParam("operation_id", operationId);
        }

        private static Gson buildGson() {
            return new GsonBuilder()
                    .registerTypeAdapter(OperationDetails.class, new Deserializer())
                    .create();
        }
    }

    private static final class Deserializer implements JsonDeserializer {
        @Override
        public OperationDetails deserialize(JsonElement json, Type typeOfT,
                                            JsonDeserializationContext context)
                throws JsonParseException {

            JsonObject object = json.getAsJsonObject();
            return new OperationDetails(Error.parse(JsonUtils.getString(object, "error")),
                    Operation.createFromJson(json));
        }
    }
}