package net.ktnx.mobileledger.async;
-import android.content.Context;
+import android.annotation.SuppressLint;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.os.AsyncTask;
import net.ktnx.mobileledger.R;
+import net.ktnx.mobileledger.TransactionListActivity;
import net.ktnx.mobileledger.model.LedgerTransaction;
import net.ktnx.mobileledger.model.LedgerTransactionItem;
-import net.ktnx.mobileledger.utils.MobileLedgerDatabase;
+import net.ktnx.mobileledger.utils.MLDB;
import net.ktnx.mobileledger.utils.NetworkUtil;
import java.io.BufferedReader;
import java.util.regex.Pattern;
-class RetrieveTransactionsTask extends AsyncTask<RetrieveTransactionsTask.Params, Integer, Void> {
- class Params {
- static final int DEFAULT_LIMIT = 100;
- private SharedPreferences backendPref;
- private String accountsRoot;
- private int limit;
-
- Params(SharedPreferences backendPref) {
- this.backendPref = backendPref;
- this.accountsRoot = null;
- this.limit = DEFAULT_LIMIT;
- }
- Params(SharedPreferences backendPref, String accountsRoot) {
- this(backendPref, accountsRoot, DEFAULT_LIMIT);
- }
- Params(SharedPreferences backendPref, String accountsRoot, int limit) {
- this.backendPref = backendPref;
- this.accountsRoot = accountsRoot;
- this.limit = limit;
- }
- String getAccountsRoot() {
- return accountsRoot;
- }
- SharedPreferences getBackendPref() {
- return backendPref;
- }
- int getLimit() {
- return limit;
- }
- }
- private static final Pattern transactionStartPattern = Pattern.compile("<tr class=\"title\" "
- + "id=\"transaction-(\\d+)\"><td class=\"date\"[^\\\"]*>([\\d.-]+)</td>");
+public class RetrieveTransactionsTask extends
+ AsyncTask<RetrieveTransactionsTask.Params, RetrieveTransactionsTask.Progress, Void> {
+ private static final Pattern transactionStartPattern = Pattern.compile("<tr class=\"title\" " +
+ "id=\"transaction-(\\d+)\"><td class=\"date\"[^\\\"]*>([\\d.-]+)</td>");
private static final Pattern transactionDescriptionPattern =
Pattern.compile("<tr class=\"posting\" title=\"(\\S+)\\s(.+)");
private static final Pattern transactionDetailsPattern =
Pattern.compile("^\\s+" + "(\\S[\\S\\s]+\\S)\\s\\s+([-+]?\\d[\\d,.]*)");
- protected WeakReference<Context> contextRef;
+ private static final Pattern endPattern = Pattern.compile("\\bid=\"addmodal\"");
+ protected WeakReference<TransactionListActivity> contextRef;
protected int error;
+ private boolean success;
+ public RetrieveTransactionsTask(WeakReference<TransactionListActivity> contextRef) {
+ this.contextRef = contextRef;
+ }
+ private static final void L(String msg) {
+// Log.d("transaction-parser", msg);
+ }
+ @Override
+ protected void onProgressUpdate(Progress... values) {
+ super.onProgressUpdate(values);
+ TransactionListActivity context = getContext();
+ if (context == null) return;
+ context.onRetrieveProgress(values[0]);
+ }
+ @Override
+ protected void onPreExecute() {
+ super.onPreExecute();
+ TransactionListActivity context = getContext();
+ if (context == null) return;
+ context.onRetrieveStart();
+ }
+ @Override
+ protected void onPostExecute(Void aVoid) {
+ super.onPostExecute(aVoid);
+ TransactionListActivity context = getContext();
+ if (context == null) return;
+ context.onRetrieveDone(success);
+ }
+ @SuppressLint("DefaultLocale")
@Override
protected Void doInBackground(Params... params) {
+ Progress progress = new Progress();
+ int maxTransactionId = Progress.INDETERMINATE;
+ success = false;
try {
HttpURLConnection http =
NetworkUtil.prepare_connection(params[0].getBackendPref(), "journal");
http.setAllowUserInteraction(false);
- publishProgress(0);
- Context ctx = contextRef.get();
+ publishProgress(progress);
+ TransactionListActivity ctx = contextRef.get();
if (ctx == null) return null;
- try (MobileLedgerDatabase dbh = new MobileLedgerDatabase(ctx)) {
- try (SQLiteDatabase db = dbh.getWritableDatabase()) {
- try (InputStream resp = http.getInputStream()) {
- if (http.getResponseCode() != 200) throw new IOException(
- String.format("HTTP error %d", http.getResponseCode()));
- db.beginTransaction();
- try {
- String root = params[0].getAccountsRoot();
- if (root == null) db.execSQL("DELETE FROM transaction_history;");
- else {
- StringBuilder sql = new StringBuilder();
- sql.append("DELETE FROM transaction_history ");
- sql.append(
- "where id in (select transactions.id from transactions ");
- sql.append("join transaction_accounts ");
- sql.append(
- "on transactions.id=transaction_accounts.transaction_id ");
- sql.append("where transaction_accounts.account_name like ?||'%'");
- db.execSQL(sql.toString(), new String[]{root});
- }
+ try (SQLiteDatabase db = MLDB.getWritableDatabase(ctx)) {
+ try (InputStream resp = http.getInputStream()) {
+ if (http.getResponseCode() != 200) throw new IOException(
+ String.format("HTTP error %d", http.getResponseCode()));
+ db.beginTransaction();
+ try {
+ db.execSQL("UPDATE transactions set keep=0");
+
+ int state = ParserState.EXPECTING_JOURNAL;
+ String line;
+ BufferedReader buf =
+ new BufferedReader(new InputStreamReader(resp, "UTF-8"));
- int state = ParserState.EXPECTING_JOURNAL;
- String line;
- BufferedReader buf =
- new BufferedReader(new InputStreamReader(resp, "UTF-8"));
-
- int transactionCount = 0;
- String transactionId = null;
- LedgerTransaction transaction = null;
- while ((line = buf.readLine()) != null) {
- switch (state) {
- case ParserState.EXPECTING_JOURNAL: {
- if (line.equals("<h2>General Journal</h2>"))
- state = ParserState.EXPECTING_TRANSACTION;
- continue;
+ int processedTransactionCount = 0;
+ int transactionId = 0;
+ int matchedTransactionsCount = 0;
+ LedgerTransaction transaction = null;
+ LINES:
+ while ((line = buf.readLine()) != null) {
+ if (isCancelled()) break;
+ Matcher m;
+ //L(String.format("State is %d", state));
+ switch (state) {
+ case ParserState.EXPECTING_JOURNAL:
+ if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
+ if (line.equals("<h2>General Journal</h2>")) {
+ state = ParserState.EXPECTING_TRANSACTION;
+ L("→ expecting transaction");
}
- case ParserState.EXPECTING_TRANSACTION: {
- Matcher m = transactionStartPattern.matcher(line);
- if (m.find()) {
- transactionId = m.group(1);
- state = ParserState.EXPECTING_TRANSACTION_DESCRIPTION;
- }
+ break;
+ case ParserState.EXPECTING_TRANSACTION:
+ if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
+ m = transactionStartPattern.matcher(line);
+ if (m.find()) {
+ transactionId = Integer.valueOf(m.group(1));
+ state = ParserState.EXPECTING_TRANSACTION_DESCRIPTION;
+ L(String.format(
+ "found transaction %d → expecting " + "description",
+ transactionId));
+ progress.setProgress(++processedTransactionCount);
+ if (maxTransactionId < transactionId)
+ maxTransactionId = transactionId;
+ if ((progress.getTotal() == Progress.INDETERMINATE) ||
+ (progress.getTotal() < transactionId))
+ progress.setTotal(transactionId);
+ publishProgress(progress);
}
- case ParserState.EXPECTING_TRANSACTION_DESCRIPTION: {
- Matcher m = transactionDescriptionPattern.matcher(line);
- if (m.find()) {
- if (transactionId == null)
- throw new TransactionParserException(
- "Transaction Id is null while expecting description");
-
- transaction =
- new LedgerTransaction(transactionId, m.group(1),
- m.group(2));
- state = ParserState.EXPECTING_TRANSACTION_DETAILS;
- }
+ m = endPattern.matcher(line);
+ if (m.find()) {
+ L("--- transaction list complete ---");
+ success = true;
+ break LINES;
}
- case ParserState.EXPECTING_TRANSACTION_DETAILS: {
- if (transaction == null)
+ break;
+ case ParserState.EXPECTING_TRANSACTION_DESCRIPTION:
+ if (!line.isEmpty() && (line.charAt(0) == ' ')) continue;
+ m = transactionDescriptionPattern.matcher(line);
+ if (m.find()) {
+ if (transactionId == 0)
throw new TransactionParserException(
- "Transaction is null while expecting details");
- if (line.isEmpty()) {
- // transaction data collected
- transaction.insertInto(db);
+ "Transaction Id is 0 while expecting " +
+ "description");
+
+ transaction =
+ new LedgerTransaction(transactionId, m.group(1),
+ m.group(2));
+ state = ParserState.EXPECTING_TRANSACTION_DETAILS;
+ L(String.format("transaction %d created for %s (%s) →" +
+ " expecting details", transactionId,
+ m.group(1), m.group(2)));
+ }
+ break;
+ case ParserState.EXPECTING_TRANSACTION_DETAILS:
+ if (line.isEmpty()) {
+ // transaction data collected
+ if (transaction.existsInDb(db)) {
+ db.execSQL("UPDATE transactions SET keep = 1 WHERE id" +
+ "=?", new Integer[]{transaction.getId()});
+ matchedTransactionsCount++;
- state = ParserState.EXPECTING_TRANSACTION;
- publishProgress(++transactionCount);
+ if (matchedTransactionsCount == 100) {
+ db.execSQL("UPDATE transactions SET keep=1 WHERE " +
+ "id < ?",
+ new Integer[]{transaction.getId()});
+ progress.setTotal(progress.getProgress());
+ publishProgress(progress);
+ break LINES;
+ }
}
else {
- Matcher m = transactionDetailsPattern.matcher(line);
- if (m.find()) {
- String acc_name = m.group(1);
- String amount = m.group(2);
- amount = amount.replace(',', '.');
- transaction.add_item(
- new LedgerTransactionItem(acc_name,
- Float.valueOf(amount)));
- }
- else throw new IllegalStateException(String.format(
- "Can't" + " parse transaction details"));
+ db.execSQL("DELETE from transactions WHERE id=?",
+ new Integer[]{transaction.getId()});
+ db.execSQL("DELETE from transaction_accounts WHERE " +
+ "transaction_id=?",
+ new Integer[]{transaction.getId()});
+ transaction.insertInto(db);
+ matchedTransactionsCount = 0;
+ progress.setTotal(maxTransactionId);
+ }
+
+ state = ParserState.EXPECTING_TRANSACTION;
+ L(String.format(
+ "transaction %s saved → expecting " + "transaction",
+ transaction.getId()));
+
+// sounds like a good idea, but transaction-1 may not be the first one chronologically
+// for example, when you add the initial seeding transaction after entering some others
+// if (transactionId == 1) {
+// L("This was the initial transaction. Terminating " +
+// "parser");
+// break LINES;
+// }
+ }
+ else {
+ m = transactionDetailsPattern.matcher(line);
+ if (m.find()) {
+ String acc_name = m.group(1);
+ String amount = m.group(2);
+ amount = amount.replace(',', '.');
+ transaction.add_item(new LedgerTransactionItem(acc_name,
+ Float.valueOf(amount)));
+ L(String.format("%s = %s", acc_name, amount));
}
+ else throw new IllegalStateException(
+ String.format("Can't parse transaction details"));
}
- default:
- throw new RuntimeException(
- String.format("Unknown " + "parser state %d",
- state));
- }
+ break;
+ default:
+ throw new RuntimeException(
+ String.format("Unknown " + "parser state %d", state));
}
- db.setTransactionSuccessful();
}
- finally {
- db.endTransaction();
+ if (!isCancelled()) {
+ db.execSQL("DELETE FROM transactions WHERE keep = 0");
+ db.setTransactionSuccessful();
}
}
+ finally {
+ db.endTransaction();
+ }
}
}
+
+ if (success && !isCancelled()) ctx.model.reloadTransactions(ctx);
}
catch (MalformedURLException e) {
error = R.string.err_bad_backend_url;
}
return null;
}
- WeakReference<Context> getContextRef() {
- return contextRef;
+ TransactionListActivity getContext() {
+ return contextRef.get();
+ }
+
+ public static class Params {
+ static final int DEFAULT_LIMIT = 100;
+ private SharedPreferences backendPref;
+ private String accountsRoot;
+ private int limit;
+
+ public Params(SharedPreferences backendPref) {
+ this.backendPref = backendPref;
+ this.accountsRoot = null;
+ this.limit = DEFAULT_LIMIT;
+ }
+ Params(SharedPreferences backendPref, String accountsRoot) {
+ this(backendPref, accountsRoot, DEFAULT_LIMIT);
+ }
+ Params(SharedPreferences backendPref, String accountsRoot, int limit) {
+ this.backendPref = backendPref;
+ this.accountsRoot = accountsRoot;
+ this.limit = limit;
+ }
+ String getAccountsRoot() {
+ return accountsRoot;
+ }
+ SharedPreferences getBackendPref() {
+ return backendPref;
+ }
+ int getLimit() {
+ return limit;
+ }
+ }
+
+ public class Progress {
+ public static final int INDETERMINATE = -1;
+ private int progress;
+ private int total;
+ Progress() {
+ this(INDETERMINATE, INDETERMINATE);
+ }
+ Progress(int progress, int total) {
+ this.progress = progress;
+ this.total = total;
+ }
+ public int getProgress() {
+ return progress;
+ }
+ protected void setProgress(int progress) {
+ this.progress = progress;
+ }
+ public int getTotal() {
+ return total;
+ }
+ protected void setTotal(int total) {
+ this.total = total;
+ }
}
private class TransactionParserException extends IllegalStateException {