]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/async/RetrieveTransactionsTask.java
locale-aware String.format
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / async / RetrieveTransactionsTask.java
index 062c93361d5cba27c7027896e9c993390ca8415e..8d98dc63c89e920ce1128df939f0ee014b33805b 100644 (file)
@@ -23,6 +23,7 @@ import android.os.AsyncTask;
 import android.os.OperationCanceledException;
 import android.util.Log;
 
+import net.ktnx.mobileledger.err.HTTPException;
 import net.ktnx.mobileledger.json.AccountListParser;
 import net.ktnx.mobileledger.json.ParsedBalance;
 import net.ktnx.mobileledger.json.ParsedLedgerAccount;
@@ -38,7 +39,6 @@ import net.ktnx.mobileledger.utils.MLDB;
 import net.ktnx.mobileledger.utils.NetworkUtil;
 
 import java.io.BufferedReader;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -50,14 +50,17 @@ import java.nio.charset.StandardCharsets;
 import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.Locale;
 import java.util.Stack;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import static net.ktnx.mobileledger.utils.Logger.debug;
+
 
 public class RetrieveTransactionsTask
         extends AsyncTask<Void, RetrieveTransactionsTask.Progress, String> {
-    private static final int MATCHING_TRANSACTIONS_LIMIT = 50;
+    private static final int MATCHING_TRANSACTIONS_LIMIT = 150;
     private static final Pattern reComment = Pattern.compile("^\\s*;");
     private static final Pattern reTransactionStart = Pattern.compile("<tr class=\"title\" " +
                                                                       "id=\"transaction-(\\d+)\"><td class=\"date\"[^\"]*>([\\d.-]+)</td>");
@@ -76,7 +79,7 @@ public class RetrieveTransactionsTask
         this.contextRef = contextRef;
     }
     private static void L(String msg) {
-        //Log.d("transaction-parser", msg);
+        //debug("transaction-parser", msg);
     }
     @Override
     protected void onProgressUpdate(Progress... values) {
@@ -107,18 +110,25 @@ public class RetrieveTransactionsTask
         context.onRetrieveDone(null);
     }
     private String retrieveTransactionListLegacy(MobileLedgerProfile profile)
-            throws IOException, ParseException {
+            throws IOException, ParseException, HTTPException {
         Progress progress = new Progress();
         int maxTransactionId = Progress.INDETERMINATE;
         ArrayList<LedgerAccount> accountList = new ArrayList<>();
         HashMap<String, Void> accountNames = new HashMap<>();
-        LedgerAccount lastAccount = null;
+        HashMap<String, LedgerAccount> syntheticAccounts = new HashMap<>();
+        LedgerAccount lastAccount = null, prevAccount = null;
         boolean onlyStarred = Data.optShowOnlyStarred.get();
 
         HttpURLConnection http = NetworkUtil.prepareConnection(profile, "journal");
         http.setAllowUserInteraction(false);
         publishProgress(progress);
-        try (SQLiteDatabase db = MLDB.getWritableDatabase()) {
+        switch (http.getResponseCode()) {
+            case 200:
+                break;
+            default:
+                throw new HTTPException(http.getResponseCode(), http.getResponseMessage());
+        }
+        try (SQLiteDatabase db = MLDB.getDatabase()) {
             try (InputStream resp = http.getInputStream()) {
                 if (http.getResponseCode() != 200)
                     throw new IOException(String.format("HTTP error %d", http.getResponseCode()));
@@ -153,7 +163,13 @@ public class RetrieveTransactionsTask
                                 if (line.equals("<h2>General Journal</h2>")) {
                                     state = ParserState.EXPECTING_TRANSACTION;
                                     L("→ expecting transaction");
-                                    Data.accounts.set(accountList);
+                                    // commit the current transaction and start a new one
+                                    // the account list in the UI should reflect the (committed)
+                                    // state of the database
+                                    db.setTransactionSuccessful();
+                                    db.endTransaction();
+                                    Data.accounts.setList(accountList);
+                                    db.beginTransaction();
                                     continue;
                                 }
                                 m = reAccountName.matcher(line);
@@ -163,14 +179,20 @@ public class RetrieveTransactionsTask
                                     acct_name = acct_name.replace("\"", "");
                                     L(String.format("found account: %s", acct_name));
 
-                                    lastAccount = profile.loadAccount(acct_name);
-                                    if (lastAccount == null) {
+                                    prevAccount = lastAccount;
+                                    lastAccount = profile.tryLoadAccount(db, acct_name);
+                                    if (lastAccount == null)
                                         lastAccount = new LedgerAccount(acct_name);
-                                        profile.storeAccount(db, lastAccount);
-                                    }
+                                    else lastAccount.removeAmounts();
+                                    profile.storeAccount(db, lastAccount);
 
+                                    if (prevAccount != null) prevAccount
+                                            .setHasSubAccounts(prevAccount.isParentOf(lastAccount));
                                     // make sure the parent account(s) are present,
                                     // synthesising them if necessary
+                                    // this happens when the (missing-in-HTML) parent account has
+                                    // only one child so we create a synthetic parent account record,
+                                    // copying the amounts when child's amounts are parsed
                                     String parentName = lastAccount.getParentName();
                                     if (parentName != null) {
                                         Stack<String> toAppend = new Stack<>();
@@ -180,19 +202,29 @@ public class RetrieveTransactionsTask
                                             parentName =
                                                     new LedgerAccount(parentName).getParentName();
                                         }
+                                        syntheticAccounts.clear();
                                         while (!toAppend.isEmpty()) {
                                             String aName = toAppend.pop();
-                                            LedgerAccount acc = new LedgerAccount(aName);
-                                            acc.setHidden(lastAccount.isHidden());
-                                            if (!onlyStarred || !acc.isHidden())
-                                                accountList.add(acc);
+                                            LedgerAccount acc = profile.tryLoadAccount(db, aName);
+                                            if (acc == null) {
+                                                acc = new LedgerAccount(aName);
+                                                acc.setHiddenByStar(lastAccount.isHiddenByStar());
+                                                acc.setExpanded(!lastAccount.hasSubAccounts() ||
+                                                                lastAccount.isExpanded());
+                                            }
+                                            acc.setHasSubAccounts(true);
+                                            acc.removeAmounts();    // filled below when amounts are parsed
+                                            if ((!onlyStarred || !acc.isHiddenByStar()) &&
+                                                acc.isVisible(accountList)) accountList.add(acc);
                                             L(String.format("gap-filling with %s", aName));
                                             accountNames.put(aName, null);
                                             profile.storeAccount(db, acc);
+                                            syntheticAccounts.put(aName, acc);
                                         }
                                     }
 
-                                    if (!onlyStarred || !lastAccount.isHidden())
+                                    if ((!onlyStarred || !lastAccount.isHiddenByStar()) &&
+                                        lastAccount.isVisible(accountList))
                                         accountList.add(lastAccount);
                                     accountNames.put(acct_name, null);
 
@@ -213,9 +245,14 @@ public class RetrieveTransactionsTask
                                     if (currency == null) currency = "";
                                     value = value.replace(',', '.');
                                     L("curr=" + currency + ", value=" + value);
+                                    final float val = Float.parseFloat(value);
                                     profile.storeAccountValue(db, lastAccount.getName(), currency,
-                                            Float.valueOf(value));
-                                    lastAccount.addAmount(Float.parseFloat(value), currency);
+                                            val);
+                                    lastAccount.addAmount(val, currency);
+                                    for (LedgerAccount syn : syntheticAccounts.values()) {
+                                        syn.addAmount(val, currency);
+                                        profile.storeAccountValue(db, syn.getName(), currency, val);
+                                    }
                                 }
 
                                 if (match_found) {
@@ -231,7 +268,8 @@ public class RetrieveTransactionsTask
                                 if (m.find()) {
                                     transactionId = Integer.valueOf(m.group(1));
                                     state = ParserState.EXPECTING_TRANSACTION_DESCRIPTION;
-                                    L(String.format("found transaction %d → expecting description",
+                                    L(String.format(Locale.ENGLISH,
+                                            "found transaction %d → expecting description",
                                             transactionId));
                                     progress.setProgress(++processedTransactionCount);
                                     if (maxTransactionId < transactionId)
@@ -268,9 +306,9 @@ public class RetrieveTransactionsTask
                                         return String.format("Error parsing date '%s'", date);
                                     }
                                     state = ParserState.EXPECTING_TRANSACTION_DETAILS;
-                                    L(String.format("transaction %d created for %s (%s) →" +
-                                                    " expecting details", transactionId, date,
-                                            m.group(2)));
+                                    L(String.format(Locale.ENGLISH,
+                                            "transaction %d created for %s (%s) →" +
+                                            " expecting details", transactionId, date, m.group(2)));
                                 }
                                 break;
 
@@ -321,8 +359,8 @@ public class RetrieveTransactionsTask
                                         transaction.addAccount(
                                                 new LedgerTransactionAccount(acc_name,
                                                         Float.valueOf(amount), currency));
-                                        L(String.format("%d: %s = %s", transaction.getId(),
-                                                acc_name, amount));
+                                        L(String.format(Locale.ENGLISH, "%d: %s = %s",
+                                                transaction.getId(), acc_name, amount));
                                     }
                                     else throw new IllegalStateException(String.format(
                                             "Can't parse transaction %d " + "details: %s",
@@ -357,123 +395,204 @@ public class RetrieveTransactionsTask
                 new String[]{profile.getUuid()});
         db.execSQL("update accounts set keep=0 where profile=?;", new String[]{profile.getUuid()});
     }
-    private boolean retrieveAccountList(MobileLedgerProfile profile) throws IOException {
+    private boolean retrieveAccountList(MobileLedgerProfile profile)
+            throws IOException, HTTPException {
         Progress progress = new Progress();
 
         HttpURLConnection http = NetworkUtil.prepareConnection(profile, "accounts");
         http.setAllowUserInteraction(false);
+        switch (http.getResponseCode()) {
+            case 200:
+                break;
+            case 404:
+                return false;
+            default:
+                throw new HTTPException(http.getResponseCode(), http.getResponseMessage());
+        }
         publishProgress(progress);
-        try (SQLiteDatabase db = MLDB.getWritableDatabase()) {
-            try (InputStream resp = http.getInputStream()) {
-                if (http.getResponseCode() != 200)
-                    throw new IOException(String.format("HTTP error %d", http.getResponseCode()));
+        SQLiteDatabase db = MLDB.getDatabase();
+        ArrayList<LedgerAccount> accountList = new ArrayList<>();
+        boolean listFilledOK = false;
+        try (InputStream resp = http.getInputStream()) {
+            if (http.getResponseCode() != 200)
+                throw new IOException(String.format("HTTP error %d", http.getResponseCode()));
 
-                db.beginTransaction();
-                try {
-                    profile.markAccountsAsNotPresent(db);
+            db.beginTransaction();
+            try {
+                profile.markAccountsAsNotPresent(db);
 
-                    AccountListParser parser = new AccountListParser(resp);
-                    ArrayList<LedgerAccount> accountList = new ArrayList<>();
+                AccountListParser parser = new AccountListParser(resp);
 
-                    while (true) {
-                        throwIfCancelled();
-                        ParsedLedgerAccount parsedAccount = parser.nextAccount();
-                        if (parsedAccount == null) break;
-
-                        LedgerAccount acc = new LedgerAccount(parsedAccount.getAname());
-                        profile.storeAccount(db, acc);
-                        for (ParsedBalance b : parsedAccount.getAebalance()) {
-                            profile.storeAccountValue(db, acc.getName(), b.getAcommodity(),
-                                    b.getAquantity().asFloat());
+                LedgerAccount prevAccount = null;
+
+                while (true) {
+                    throwIfCancelled();
+                    ParsedLedgerAccount parsedAccount = parser.nextAccount();
+                    if (parsedAccount == null) break;
+
+                    LedgerAccount acc = profile.tryLoadAccount(db, parsedAccount.getAname());
+                    if (acc == null) acc = new LedgerAccount(parsedAccount.getAname());
+                    else acc.removeAmounts();
+
+                    profile.storeAccount(db, acc);
+                    String lastCurrency = null;
+                    float lastCurrencyAmount = 0;
+                    for (ParsedBalance b : parsedAccount.getAibalance()) {
+                        final String currency = b.getAcommodity();
+                        final float amount = b.getAquantity().asFloat();
+                        if (currency.equals(lastCurrency)) lastCurrencyAmount += amount;
+                        else {
+                            if (lastCurrency != null) {
+                                profile.storeAccountValue(db, acc.getName(), lastCurrency,
+                                        lastCurrencyAmount);
+                                acc.addAmount(lastCurrencyAmount, lastCurrency);
+                            }
+                            lastCurrency = currency;
+                            lastCurrencyAmount = amount;
                         }
+                    }
+                    if (lastCurrency != null) {
+                        profile.storeAccountValue(db, acc.getName(), lastCurrency,
+                                lastCurrencyAmount);
+                        acc.addAmount(lastCurrencyAmount, lastCurrency);
+                    }
 
-                        accountList.add(acc);
+                    if (acc.isVisible(accountList)) accountList.add(acc);
+
+                    if (prevAccount != null) {
+                        prevAccount.setHasSubAccounts(
+                                acc.getName().startsWith(prevAccount.getName() + ":"));
                     }
-                    throwIfCancelled();
 
-                    profile.deleteNotPresentAccounts(db);
-                    throwIfCancelled();
-                    db.setTransactionSuccessful();
-                    Data.accounts.set(accountList);
-                }
-                finally {
-                    db.endTransaction();
+                    prevAccount = acc;
                 }
+                throwIfCancelled();
+
+                profile.deleteNotPresentAccounts(db);
+                throwIfCancelled();
+                db.setTransactionSuccessful();
+                listFilledOK = true;
+            }
+            finally {
+                db.endTransaction();
             }
         }
+        // should not be set in the DB transaction, because of a possible deadlock
+        // with the main and DbOpQueueRunner threads
+        if (listFilledOK) Data.accounts.setList(accountList);
 
         return true;
     }
     private boolean retrieveTransactionList(MobileLedgerProfile profile)
-            throws IOException, ParseException {
+            throws IOException, ParseException, HTTPException {
         Progress progress = new Progress();
         int maxTransactionId = Progress.INDETERMINATE;
 
         HttpURLConnection http = NetworkUtil.prepareConnection(profile, "transactions");
         http.setAllowUserInteraction(false);
         publishProgress(progress);
-        try (SQLiteDatabase db = MLDB.getWritableDatabase()) {
-            try (InputStream resp = http.getInputStream()) {
-                if (http.getResponseCode() != 200)
-                    throw new IOException(String.format("HTTP error %d", http.getResponseCode()));
-                throwIfCancelled();
-                db.beginTransaction();
-                try {
-                    profile.markTransactionsAsNotPresent(db);
+        switch (http.getResponseCode()) {
+            case 200:
+                break;
+            case 404:
+                return false;
+            default:
+                throw new HTTPException(http.getResponseCode(), http.getResponseMessage());
+        }
+        SQLiteDatabase db = MLDB.getDatabase();
+        try (InputStream resp = http.getInputStream()) {
+            if (http.getResponseCode() != 200)
+                throw new IOException(String.format("HTTP error %d", http.getResponseCode()));
+            throwIfCancelled();
+            db.beginTransaction();
+            try {
+                profile.markTransactionsAsNotPresent(db);
 
-                    int matchedTransactionsCount = 0;
-                    TransactionListParser parser = new TransactionListParser(resp);
+                int matchedTransactionsCount = 0;
+                TransactionListParser parser = new TransactionListParser(resp);
 
-                    int processedTransactionCount = 0;
+                int processedTransactionCount = 0;
 
-                    while (true) {
-                        throwIfCancelled();
-                        ParsedLedgerTransaction parsedTransaction = parser.nextTransaction();
-                        throwIfCancelled();
-                        if (parsedTransaction == null) break;
-                        LedgerTransaction transaction = parsedTransaction.asLedgerTransaction();
-                        if (transaction.existsInDb(db)) {
-                            profile.markTransactionAsPresent(db, transaction);
-                            matchedTransactionsCount++;
-
-                            if (matchedTransactionsCount == MATCHING_TRANSACTIONS_LIMIT) {
-                                profile.markTransactionsBeforeTransactionAsPresent(db, transaction);
-                                progress.setTotal(progress.getProgress());
-                                publishProgress(progress);
-                                db.setTransactionSuccessful();
-                                profile.setLastUpdateStamp();
-                                return true;
-                            }
+                DetectedTransactionOrder transactionOrder = DetectedTransactionOrder.UNKNOWN;
+                int orderAccumulator = 0;
+                int lastTransactionId = 0;
+
+                while (true) {
+                    throwIfCancelled();
+                    ParsedLedgerTransaction parsedTransaction = parser.nextTransaction();
+                    throwIfCancelled();
+                    if (parsedTransaction == null) break;
+
+                    LedgerTransaction transaction = parsedTransaction.asLedgerTransaction();
+                    if (transaction.getId() > lastTransactionId) orderAccumulator++;
+                    else orderAccumulator--;
+                    lastTransactionId = transaction.getId();
+                    if (transactionOrder == DetectedTransactionOrder.UNKNOWN) {
+                        if (orderAccumulator > 30) {
+                            transactionOrder = DetectedTransactionOrder.FILE;
+                            debug("rtt", String.format(Locale.ENGLISH,
+                                    "Detected native file order after %d transactions (factor %d)",
+                                    processedTransactionCount, orderAccumulator));
+                            progress.setTotal(Data.transactions.size());
                         }
-                        else {
-                            profile.storeTransaction(db, transaction);
-                            matchedTransactionsCount = 0;
-                            progress.setTotal(maxTransactionId);
+                        else if (orderAccumulator < -30) {
+                            transactionOrder = DetectedTransactionOrder.REVERSE_CHRONOLOGICAL;
+                            debug("rtt", String.format(Locale.ENGLISH,
+                                    "Detected reverse chronological order after %d transactions (factor %d)",
+                                    processedTransactionCount, orderAccumulator));
                         }
+                    }
 
-                        progress.setProgress(++processedTransactionCount);
-                        publishProgress(progress);
+                    if (transaction.existsInDb(db)) {
+                        profile.markTransactionAsPresent(db, transaction);
+                        matchedTransactionsCount++;
+
+                        if ((transactionOrder == DetectedTransactionOrder.REVERSE_CHRONOLOGICAL) &&
+                            (matchedTransactionsCount == MATCHING_TRANSACTIONS_LIMIT))
+                        {
+                            profile.markTransactionsBeforeTransactionAsPresent(db, transaction);
+                            progress.setTotal(progress.getProgress());
+                            publishProgress(progress);
+                            db.setTransactionSuccessful();
+                            profile.setLastUpdateStamp();
+                            return true;
+                        }
+                    }
+                    else {
+                        profile.storeTransaction(db, transaction);
+                        matchedTransactionsCount = 0;
+                        progress.setTotal(maxTransactionId);
                     }
 
-                    throwIfCancelled();
-                    profile.deleteNotPresentTransactions(db);
-                    throwIfCancelled();
-                    db.setTransactionSuccessful();
-                    profile.setLastUpdateStamp();
-                }
-                finally {
-                    db.endTransaction();
+
+                    if ((transactionOrder != DetectedTransactionOrder.UNKNOWN) &&
+                        ((progress.getTotal() == Progress.INDETERMINATE) ||
+                         (progress.getTotal() < transaction.getId())))
+                        progress.setTotal(transaction.getId());
+
+                    progress.setProgress(++processedTransactionCount);
+                    publishProgress(progress);
                 }
+
+                throwIfCancelled();
+                profile.deleteNotPresentTransactions(db);
+                throwIfCancelled();
+                db.setTransactionSuccessful();
+                profile.setLastUpdateStamp();
+            }
+            finally {
+                db.endTransaction();
             }
         }
 
         return true;
     }
+
     @SuppressLint("DefaultLocale")
     @Override
     protected String doInBackground(Void... params) {
         MobileLedgerProfile profile = Data.profile.get();
-        Data.backgroundTaskCount.incrementAndGet();
+        Data.backgroundTaskStarted();
         try {
             if (!retrieveAccountList(profile) || !retrieveTransactionList(profile))
                 return retrieveTransactionListLegacy(profile);
@@ -483,13 +602,13 @@ public class RetrieveTransactionsTask
             e.printStackTrace();
             return "Invalid server URL";
         }
-        catch (FileNotFoundException e) {
+        catch (HTTPException e) {
             e.printStackTrace();
-            return "Invalid user name or password";
+            return String.format("HTTP error %d: %s", e.getResponseCode(), e.getResponseMessage());
         }
         catch (IOException e) {
             e.printStackTrace();
-            return "Network error";
+            return e.getLocalizedMessage();
         }
         catch (ParseException e) {
             e.printStackTrace();
@@ -500,7 +619,7 @@ public class RetrieveTransactionsTask
             return "Operation cancelled";
         }
         finally {
-            Data.backgroundTaskCount.decrementAndGet();
+            Data.backgroundTaskFinished();
         }
     }
     private MainActivity getContext() {
@@ -509,6 +628,7 @@ public class RetrieveTransactionsTask
     private void throwIfCancelled() {
         if (isCancelled()) throw new OperationCanceledException(null);
     }
+    enum DetectedTransactionOrder {UNKNOWN, REVERSE_CHRONOLOGICAL, FILE}
 
     private enum ParserState {
         EXPECTING_ACCOUNT, EXPECTING_ACCOUNT_AMOUNT, EXPECTING_JOURNAL, EXPECTING_TRANSACTION,