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Diffstat (limited to 'taler-kotlin-common/src/main/java/net/taler/common/SignedAmount.kt')
-rw-r--r-- | taler-kotlin-common/src/main/java/net/taler/common/SignedAmount.kt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/taler-kotlin-common/src/main/java/net/taler/common/SignedAmount.kt b/taler-kotlin-common/src/main/java/net/taler/common/SignedAmount.kt new file mode 100644 index 0000000..03a0d6e --- /dev/null +++ b/taler-kotlin-common/src/main/java/net/taler/common/SignedAmount.kt @@ -0,0 +1,40 @@ +/* + * This file is part of GNU Taler + * (C) 2020 Taler Systems S.A. + * + * GNU Taler is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 3, or (at your option) any later version. + * + * GNU Taler 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 for more details. + * + * You should have received a copy of the GNU General Public License along with + * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +package net.taler.common + +import android.annotation.SuppressLint + +data class SignedAmount( + val positive: Boolean, + val amount: Amount +) { + + companion object { + @Throws(AmountParserException::class) + @SuppressLint("CheckedExceptions") + fun fromJSONString(str: String): SignedAmount = when (str.substring(0, 1)) { + "-" -> SignedAmount(false, Amount.fromJSONString(str.substring(1))) + "+" -> SignedAmount(true, Amount.fromJSONString(str.substring(1))) + else -> SignedAmount(true, Amount.fromJSONString(str)) + } + } + + override fun toString(): String { + return if (positive) "$amount" else "-$amount" + } + +}
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