+++ /dev/null
-/*
- * Copyright © 2018 Damyan Ivanov.
- * This file is part of Mobile-Ledger.
- * Mobile-Ledger is free software: you can distribute it and/or modify it
- * under the term of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your opinion), any later version.
- *
- * Mobile-Ledger is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License terms for details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
- */
-
-package net.ktnx.mobileledger;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.database.sqlite.SQLiteDatabase;
-import android.os.AsyncTask;
-
-import java.io.BufferedReader;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.lang.ref.WeakReference;
-import java.net.HttpURLConnection;
-import java.net.MalformedURLException;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-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;
- }
-}
-
-class RetrieveTransactionsTask extends AsyncTask<Params, Integer, 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;
- protected int error;
- @Override
- protected Void doInBackground(Params... params) {
- try {
- HttpURLConnection http =
- NetworkUtil.prepare_connection(params[0].getBackendPref(), "journal");
- http.setAllowUserInteraction(false);
- publishProgress(0);
- Context 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});
- }
-
- 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;
- }
- case ParserState.EXPECTING_TRANSACTION: {
- Matcher m = transactionStartPattern.matcher(line);
- if (m.find()) {
- transactionId = m.group(1);
- state = ParserState.EXPECTING_TRANSACTION_DESCRIPTION;
- }
- }
- 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;
- }
- }
- case ParserState.EXPECTING_TRANSACTION_DETAILS: {
- if (transaction == null)
- throw new TransactionParserException(
- "Transaction is null while expecting details");
- if (line.isEmpty()) {
- // transaction data collected
- transaction.insertInto(db);
-
- state = ParserState.EXPECTING_TRANSACTION;
- publishProgress(++transactionCount);
- }
- 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"));
- }
- }
- default:
- throw new RuntimeException(
- String.format("Unknown " + "parser state %d",
- state));
- }
- }
- db.setTransactionSuccessful();
- }
- finally {
- db.endTransaction();
- }
- }
- }
- }
- }
- catch (MalformedURLException e) {
- error = R.string.err_bad_backend_url;
- e.printStackTrace();
- }
- catch (FileNotFoundException e) {
- error = R.string.err_bad_auth;
- e.printStackTrace();
- }
- catch (IOException e) {
- error = R.string.err_net_io_error;
- e.printStackTrace();
- }
- return null;
- }
- WeakReference<Context> getContextRef() {
- return contextRef;
- }
-
- private class TransactionParserException extends IllegalStateException {
- TransactionParserException(String message) {
- super(message);
- }
- }
-
- private class ParserState {
- static final int EXPECTING_JOURNAL = 0;
- static final int EXPECTING_TRANSACTION = 1;
- static final int EXPECTING_TRANSACTION_DESCRIPTION = 2;
- static final int EXPECTING_TRANSACTION_DETAILS = 3;
- }
-}
projects / mobile-ledger.git / blobdiff