SubmitTransactionResponse tests and helper methods

src/main/java/org/stellar/sdk/responses/SubmitTransactionResponse.java

@@ -2,8 +2,14 @@
 
 import com.google.gson.annotations.SerializedName;
 
+import org.apache.commons.codec.binary.Base64;
 import org.stellar.sdk.Server;
+import org.stellar.sdk.xdr.OperationType;
+import org.stellar.sdk.xdr.TransactionResult;
+import org.stellar.sdk.xdr.XdrDataInputStream;
 
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
 import java.util.ArrayList;
 
 /**
@@ -15,13 +21,19 @@ public class SubmitTransactionResponse extends Response {
     private final String hash;
     @SerializedName("ledger")
     private final Long ledger;
+    @SerializedName("envelope_xdr")
+    private final String envelopeXdr;
+    @SerializedName("result_xdr")
+    private final String resultXdr;
     @SerializedName("extras")
     private final Extras extras;
 
-    SubmitTransactionResponse(Extras extras, Long ledger, String hash) {
+    SubmitTransactionResponse(Extras extras, Long ledger, String hash, String envelopeXdr, String resultXdr) {
         this.extras = extras;
         this.ledger = ledger;
         this.hash = hash;
+        this.envelopeXdr = envelopeXdr;
+        this.resultXdr = resultXdr;
     }
 
     public boolean isSuccess() {
@@ -36,6 +48,56 @@ public Long getLedger() {
         return ledger;
     }
 
+    public String getEnvelopeXdr() {
+        if (this.isSuccess()) {
+            return this.envelopeXdr;
+        } else {
+            return this.getExtras().getEnvelopeXdr();
+        }
+    }
+
+    public String getResultXdr() {
+        if (this.isSuccess()) {
+            return this.resultXdr;
+        } else {
+            return this.getExtras().getResultXdr();
+        }
+    }
+
+    /**
+     * Helper method that returns Offer ID for ManageOffer from TransactionResult Xdr.
+     * This is helpful when you need ID of an offer to update it later.
+     * @param position Position of ManageOffer operation. If ManageOffer is second operation in this transaction this should be equal <code>1</code>.
+     * @return Offer ID or <code>null</code> when operation at <code>position</code> is not a ManageOffer operation or error has occurred.
+     */
+    public Long getOfferIdFromResult(int position) {
+        if (!this.isSuccess()) {
+            return null;
+        }
+
+        Base64 base64Codec = new Base64();
+        byte[] bytes = base64Codec.decode(this.getResultXdr());
+        ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);
+        XdrDataInputStream xdrInputStream = new XdrDataInputStream(inputStream);
+        TransactionResult result;
+
+        try {
+            result = TransactionResult.decode(xdrInputStream);
+        } catch (IOException e) {
+            return null;
+        }
+
+        if (result.getResult().getResults()[position] == null) {
+            return null;
+        }
+
+        if (result.getResult().getResults()[position].getTr().getDiscriminant() != OperationType.MANAGE_OFFER) {
+            return null;
+        }
+
+        return result.getResult().getResults()[0].getTr().getManageOfferResult().getSuccess().getOffer().getOffer().getOfferID().getUint64();
+    }
+
     /**
      * Additional information returned by a server. This will be <code>null</code> if transaction succeeded.
      */

src/test/java/org/stellar/sdk/responses/SubmitTransactionResponseTest.java

@@ -0,0 +1,83 @@
+package org.stellar.sdk.responses;
+
+import junit.framework.TestCase;
+
+import org.junit.Test;
+
+public class SubmitTransactionResponseTest extends TestCase {
+  @Test
+  public void testDeserializeTransactionFailureResponse() {
+    String json = "{\n" +
+            "  \"type\": \"https://stellar.org/horizon-errors/transaction_failed\",\n" +
+            "  \"title\": \"Transaction Failed\",\n" +
+            "  \"status\": 400,\n" +
+            "  \"detail\": \"The transaction failed when submitted to the stellar network. The `extras.result_codes` field on this response contains further details.  Descriptions of each code can be found at: https://www.stellar.org/developers/learn/concepts/list-of-operations.html\",\n" +
+            "  \"instance\": \"horizon-testnet-001.prd.stellar001.internal.stellar-ops.com/4elYz2fHhC-528285\",\n" +
+            "  \"extras\": {\n" +
+            "    \"envelope_xdr\": \"AAAAAKpmDL6Z4hvZmkTBkYpHftan4ogzTaO4XTB7joLgQnYYAAAAZAAAAAAABeoyAAAAAAAAAAEAAAAAAAAAAQAAAAAAAAABAAAAAD3sEVVGZGi/NoC3ta/8f/YZKMzyi9ZJpOi0H47x7IqYAAAAAAAAAAAF9eEAAAAAAAAAAAA=\",\n" +
+            "    \"result_codes\": {\n" +
+            "      \"transaction\": \"tx_no_source_account\"\n" +
+            "    },\n" +
+            "    \"result_xdr\": \"AAAAAAAAAAD////4AAAAAA==\"\n" +
+            "  }\n" +
+            "}";
+
+    SubmitTransactionResponse submitTransactionResponse = GsonSingleton.getInstance().fromJson(json, SubmitTransactionResponse.class);
+    assertEquals(submitTransactionResponse.isSuccess(), false);
+    assertEquals(submitTransactionResponse.getEnvelopeXdr(), "AAAAAKpmDL6Z4hvZmkTBkYpHftan4ogzTaO4XTB7joLgQnYYAAAAZAAAAAAABeoyAAAAAAAAAAEAAAAAAAAAAQAAAAAAAAABAAAAAD3sEVVGZGi/NoC3ta/8f/YZKMzyi9ZJpOi0H47x7IqYAAAAAAAAAAAF9eEAAAAAAAAAAAA=");
+    assertEquals(submitTransactionResponse.getResultXdr(), "AAAAAAAAAAD////4AAAAAA==");
+    assertEquals(submitTransactionResponse.getExtras().getResultCodes().getTransactionResultCode(), "tx_no_source_account");
+  }
+
+  @Test
+  public void testDeserializeOperationFailureResponse() {
+    String json = "{\n" +
+            "  \"type\": \"https://stellar.org/horizon-errors/transaction_failed\",\n" +
+            "  \"title\": \"Transaction Failed\",\n" +
+            "  \"status\": 400,\n" +
+            "  \"detail\": \"The transaction failed when submitted to the stellar network. The `extras.result_codes` field on this response contains further details.  Descriptions of each code can be found at: https://www.stellar.org/developers/learn/concepts/list-of-operations.html\",\n" +
+            "  \"instance\": \"horizon-testnet-001.prd.stellar001.internal.stellar-ops.com/4elYz2fHhC-528366\",\n" +
+            "  \"extras\": {\n" +
+            "    \"envelope_xdr\": \"AAAAAF2O0axA67+p2jMunG6G188kDSHIvqQ13d9l29YCSA/uAAAAZAAvvc0AAAABAAAAAAAAAAEAAAAAAAAAAQAAAAAAAAABAAAAAD3sEVVGZGi/NoC3ta/8f/YZKMzyi9ZJpOi0H47x7IqYAAAAAAAAAAAF9eEAAAAAAAAAAAECSA/uAAAAQFuZVAjftHa+JZes1VxSk8naOfjjAz9V86mY1AZf8Ik6PtTsBpDsCfG57EYsq4jWyZcT+vhXyWsw5evF1ELqMw4=\",\n" +
+            "    \"result_codes\": {\n" +
+            "      \"transaction\": \"tx_failed\",\n" +
+            "      \"operations\": [\n" +
+            "        \"op_no_destination\"\n" +
+            "      ]\n" +
+            "    },\n" +
+            "    \"result_xdr\": \"AAAAAAAAAGT/////AAAAAQAAAAAAAAAB////+wAAAAA=\"\n" +
+            "  }\n" +
+            "}";
+
+    SubmitTransactionResponse submitTransactionResponse = GsonSingleton.getInstance().fromJson(json, SubmitTransactionResponse.class);
+    assertEquals(submitTransactionResponse.isSuccess(), false);
+    assertEquals(submitTransactionResponse.getEnvelopeXdr(), "AAAAAF2O0axA67+p2jMunG6G188kDSHIvqQ13d9l29YCSA/uAAAAZAAvvc0AAAABAAAAAAAAAAEAAAAAAAAAAQAAAAAAAAABAAAAAD3sEVVGZGi/NoC3ta/8f/YZKMzyi9ZJpOi0H47x7IqYAAAAAAAAAAAF9eEAAAAAAAAAAAECSA/uAAAAQFuZVAjftHa+JZes1VxSk8naOfjjAz9V86mY1AZf8Ik6PtTsBpDsCfG57EYsq4jWyZcT+vhXyWsw5evF1ELqMw4=");
+    assertEquals(submitTransactionResponse.getResultXdr(), "AAAAAAAAAGT/////AAAAAQAAAAAAAAAB////+wAAAAA=");
+    assertEquals(submitTransactionResponse.getExtras().getResultCodes().getTransactionResultCode(), "tx_failed");
+    assertEquals(submitTransactionResponse.getExtras().getResultCodes().getOperationsResultCodes().get(0), "op_no_destination");
+  }
+
+  @Test
+  public void testDeserializeSuccessResponse() {
+    String json = "{\n" +
+            "  \"_links\": {\n" +
+            "    \"transaction\": {\n" +
+            "      \"href\": \"https://horizon-testnet.stellar.org/transactions/ee14b93fcd31d4cfe835b941a0a8744e23a6677097db1fafe0552d8657bed940\"\n" +
+            "    }\n" +
+            "  },\n" +
+            "  \"hash\": \"ee14b93fcd31d4cfe835b941a0a8744e23a6677097db1fafe0552d8657bed940\",\n" +
+            "  \"ledger\": 3128812,\n" +
+            "  \"envelope_xdr\": \"AAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAZAAT3TUAAAAwAAAAAAAAAAAAAAABAAAAAAAAAAMAAAABSU5SAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAAAFVU0QAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAX14QAAAAAKAAAAAQAAAAAAAAAAAAAAAAAAAAG/dhGXAAAAQLuStfImg0OeeGAQmvLkJSZ1MPSkCzCYNbGqX5oYNuuOqZ5SmWhEsC7uOD9ha4V7KengiwNlc0oMNqBVo22S7gk=\",\n" +
+            "  \"result_xdr\": \"AAAAAAAAAGQAAAAAAAAAAQAAAAAAAAADAAAAAAAAAAAAAAAAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAAAAPEAAAABSU5SAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAAAFVU0QAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAX14QAAAAAKAAAAAQAAAAAAAAAAAAAAAA==\",\n" +
+            "  \"result_meta_xdr\": \"AAAAAAAAAAEAAAACAAAAAAAvoHwAAAACAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAAAAPEAAAABSU5SAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAAAFVU0QAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAX14QAAAAAKAAAAAQAAAAAAAAAAAAAAAAAAAAEAL6B8AAAAAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAABZ9zvNAABPdNQAAADAAAAAEAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAA==\"\n" +
+            "}";
+
+    SubmitTransactionResponse submitTransactionResponse = GsonSingleton.getInstance().fromJson(json, SubmitTransactionResponse.class);
+    assertEquals(submitTransactionResponse.isSuccess(), true);
+    assertEquals(submitTransactionResponse.getHash(), "ee14b93fcd31d4cfe835b941a0a8744e23a6677097db1fafe0552d8657bed940");
+    assertEquals(submitTransactionResponse.getLedger(), new Long(3128812));
+    assertEquals(submitTransactionResponse.getEnvelopeXdr(), "AAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAZAAT3TUAAAAwAAAAAAAAAAAAAAABAAAAAAAAAAMAAAABSU5SAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAAAFVU0QAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAX14QAAAAAKAAAAAQAAAAAAAAAAAAAAAAAAAAG/dhGXAAAAQLuStfImg0OeeGAQmvLkJSZ1MPSkCzCYNbGqX5oYNuuOqZ5SmWhEsC7uOD9ha4V7KengiwNlc0oMNqBVo22S7gk=");
+    assertEquals(submitTransactionResponse.getResultXdr(), "AAAAAAAAAGQAAAAAAAAAAQAAAAAAAAADAAAAAAAAAAAAAAAAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAAAAPEAAAABSU5SAAAAAAA0jDEZkBgx+hCc5IIv+z6CoaYTB8jRkIA6drZUv3YRlwAAAAFVU0QAAAAAADSMMRmQGDH6EJzkgi/7PoKhphMHyNGQgDp2tlS/dhGXAAAAAAX14QAAAAAKAAAAAQAAAAAAAAAAAAAAAA==");
+    assertEquals(submitTransactionResponse.getOfferIdFromResult(0), new Long(241));
+  }
+}