support both 1.14 and 1.15 JSON APIs

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / json / v1_14 / TransactionListParser.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/json/v1_14/TransactionListParser.java b/app/src/main/java/net/ktnx/mobileledger/json/v1_14/TransactionListParser.java
new file mode 100644 (file)
index 0000000..8056685
--- /dev/null
+++ b/app/src/main/java/net/ktnx/mobileledger/json/v1_14/TransactionListParser.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2019 Damyan Ivanov.
+ * This file is part of MoLe.
+ * MoLe 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.
+ *
+ * MoLe 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 MoLe. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.ktnx.mobileledger.json.v1_14;
+
+import com.fasterxml.jackson.databind.MappingIterator;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class TransactionListParser {
+
+    private final MappingIterator<ParsedLedgerTransaction> iter;
+
+    public TransactionListParser(InputStream input) throws IOException {
+
+        ObjectMapper mapper = new ObjectMapper();
+        ObjectReader reader = mapper.readerFor(ParsedLedgerTransaction.class);
+        iter = reader.readValues(input);
+    }
+    public ParsedLedgerTransaction nextTransaction() {
+        return iter.hasNext() ? iter.next() : null;
+    }
+}