detect and report API errors when saving new transactions

[mobile-ledger-staging.git] / app / src / main / java / net / ktnx / mobileledger / async / SendTransactionTask.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/async/SendTransactionTask.java b/app/src/main/java/net/ktnx/mobileledger/async/SendTransactionTask.java
index dc0c24875469a74b5d6404097a21034d1690672a..dbe4bc88647d87b129315d3d3edaff076028ba37 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/async/SendTransactionTask.java
+++ b/app/src/main/java/net/ktnx/mobileledger/async/SendTransactionTask.java
@@ -20,9 +20,9 @@ package net.ktnx.mobileledger.async;
 import android.os.AsyncTask;
 import android.util.Log;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.ObjectWriter;
-
+import net.ktnx.mobileledger.json.API;
+import net.ktnx.mobileledger.json.ApiNotSupportedException;
+import net.ktnx.mobileledger.json.Gateway;
 import net.ktnx.mobileledger.model.LedgerTransaction;
 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
 import net.ktnx.mobileledger.model.MobileLedgerProfile;
@@ -74,39 +74,20 @@ public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void
         mProfile = profile;
         simulate = false;
     }
-    private boolean send_1_15_OK() throws IOException {
-        HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
-        http.setRequestMethod("PUT");
-        http.setRequestProperty("Content-Type", "application/json");
-        http.setRequestProperty("Accept", "*/*");
-
-        net.ktnx.mobileledger.json.v1_15.ParsedLedgerTransaction jsonTransaction =
-                net.ktnx.mobileledger.json.v1_15.ParsedLedgerTransaction.fromLedgerTransaction(
-                        transaction);
-        ObjectMapper mapper = new ObjectMapper();
-        ObjectWriter writer =
-                mapper.writerFor(net.ktnx.mobileledger.json.v1_15.ParsedLedgerTransaction.class);
-        String body = writer.writeValueAsString(jsonTransaction);
-
-        return sendRequest(http, body);
-    }
-    private boolean send_1_14_OK() throws IOException {
+    private void sendOK(API apiVersion) throws IOException, ApiNotSupportedException {
         HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
         http.setRequestMethod("PUT");
         http.setRequestProperty("Content-Type", "application/json");
         http.setRequestProperty("Accept", "*/*");
 
-        net.ktnx.mobileledger.json.v1_14.ParsedLedgerTransaction jsonTransaction =
-                net.ktnx.mobileledger.json.v1_14.ParsedLedgerTransaction.fromLedgerTransaction(
-                        transaction);
-        ObjectMapper mapper = new ObjectMapper();
-        ObjectWriter writer =
-                mapper.writerFor(net.ktnx.mobileledger.json.v1_14.ParsedLedgerTransaction.class);
-        String body = writer.writeValueAsString(jsonTransaction);
+        Gateway gateway = Gateway.forApiVersion(apiVersion);
+        String body = gateway.transactionSaveRequest(transaction);
 
-        return sendRequest(http, body);
+        Logger.debug("network", "Sending using API " + apiVersion);
+        sendRequest(http, body);
     }
-    private boolean sendRequest(HttpURLConnection http, String body) throws IOException {
+    private void sendRequest(HttpURLConnection http, String body)
+            throws IOException, ApiNotSupportedException {
         if (simulate) {
             debug("network", "The request would be: " + body);
             try {
@@ -118,7 +99,7 @@ public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void
                 Logger.debug("network", ex.toString());
             }
 
-            return true;
+            return;
         }
 
         byte[] bodyBytes = body.getBytes(StandardCharsets.UTF_8);
@@ -146,16 +127,21 @@ public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void
                     case 400:
                     case 405: {
                         BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
-                        String line;
+                        StringBuilder errorLines = new StringBuilder();
                         int count = 0;
                         while (count <= 5) {
-                            line = reader.readLine();
+                            String line = reader.readLine();
                             if (line == null)
                                 break;
                             Logger.debug("network", line);
+
+                            if (errorLines.length() != 0)
+                                errorLines.append("\n");
+
+                            errorLines.append(line);
                             count++;
                         }
-                        return false; // will cause a retry with the legacy method
+                        throw new ApiNotSupportedException(errorLines.toString());
                     }
                     default:
                         BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
@@ -166,8 +152,6 @@ public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void
                 }
             }
         }
-
-        return true;
     }
     private boolean legacySendOK() throws IOException {
         HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
@@ -269,39 +253,42 @@ public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void
         try {
             transaction = ledgerTransactions[0];
 
-            switch (mProfile.getApiVersion()) {
+            final API profileApiVersion = mProfile.getApiVersion();
+            switch (profileApiVersion) {
                 case auto:
-                    Logger.debug("network", "Trying version 1.5.");
-                    if (!send_1_15_OK()) {
-                        Logger.debug("network", "Version 1.5 request failed. Trying with 1.14");
-                        if (!send_1_14_OK()) {
-                            Logger.debug("network",
-                                    "Version 1.14 failed too. Trying HTML form emulation");
-                            legacySendOkWithRetry();
+                    boolean sendOK = false;
+                    for (API ver : API.allVersions) {
+                        Logger.debug("network", "Trying version " + ver);
+                        try {
+                            sendOK(ver);
+                            sendOK = true;
+                            Logger.debug("network", "Version " + ver + " request succeeded");
+
+                            break;
                         }
-                        else {
-                            Logger.debug("network", "Version 1.14 request succeeded");
+                        catch (ApiNotSupportedException e) {
+                            Logger.debug("network", "Version " + ver + " seems not supported");
                         }
                     }
-                    else {
-                        Logger.debug("network", "Version 1.15 request succeeded");
+
+                    if (!sendOK) {
+                        Logger.debug("network", "Trying HTML form emulation");
+                        legacySendOkWithRetry();
                     }
                     break;
                 case html:
                     legacySendOkWithRetry();
                     break;
                 case v1_14:
-                    send_1_14_OK();
-                    break;
                 case v1_15:
-                    send_1_15_OK();
+                case v1_19_1:
+                    sendOK(profileApiVersion);
                     break;
                 default:
-                    throw new IllegalStateException(
-                            "Unexpected API version: " + mProfile.getApiVersion());
+                    throw new IllegalStateException("Unexpected API version: " + profileApiVersion);
             }
         }
-        catch (Exception e) {
+        catch (ApiNotSupportedException | Exception e) {
             e.printStackTrace();
             error = e.getMessage();
         }