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Updated on 2026-08-14

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Tangem 2018-10-30 12:25:49 +03:00
parent f2fc3e9886
commit e122ccd0eb
20 changed files with 615 additions and 472 deletions
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61
app/src/main/java/com/tangem/domain/wallet/CoinEngine.java
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@ -8,8 +8,10 @@ import com.tangem.domain.cardReader.CardProtocol;
import org.jetbrains.annotations.Nullable;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.text.DecimalFormat;
/**
* Created by Ilia on 15.02.2018.
@ -21,20 +23,26 @@ public abstract class CoinEngine {
public static final String EXTRA_ENGINE = "CoinEngine";
public static class InternalAmount extends BigDecimal {
private String currency;
public InternalAmount() {
super(0);
currency="";
}
public InternalAmount(String amountString) {
public InternalAmount(String amountString, String currency) {
super(amountString);
this.currency=currency;
}
public InternalAmount(long amount) {
public InternalAmount(long amount, String currency) {
super(amount);
this.currency=currency;
}
public InternalAmount(BigDecimal amount) {
public InternalAmount(BigDecimal amount, String currency) {
super(amount.unscaledValue(), amount.scale());
this.currency=currency;
}
public boolean notZero()
@ -45,38 +53,42 @@ public abstract class CoinEngine {
public boolean isZero() {
return compareTo(BigDecimal.ZERO)==0;
}
public String getCurrency() {
return currency;
}
}
public static class Amount extends BigDecimal {
private Blockchain blockchain;
private String currency;
public Amount() {
super(0);
blockchain = Blockchain.Unknown;
currency="";
}
public Amount(String amountString, Blockchain blockchain) {
public Amount(String amountString, String currency) {
super(amountString);
this.blockchain = blockchain;
this.currency = currency;
}
public Amount(Long amount, Blockchain blockchain) {
public Amount(Long amount, String currency) {
super(amount);
this.blockchain=blockchain;
this.currency = currency;
}
public Amount(BigDecimal amount, Blockchain blockchain) {
public Amount(BigDecimal amount, String currency) {
super(amount.unscaledValue(), amount.scale());
this.blockchain=blockchain;
this.currency = currency;
}
public String getCurrency() {
return blockchain.getCurrency();
return currency;
}
@Override
public String toString() {
return super.toString() + " " + blockchain.getCurrency();
return super.toString() + " " + currency;
}
public boolean notZero()
@ -84,10 +96,27 @@ public abstract class CoinEngine {
return compareTo(BigDecimal.ZERO)>0;
}
public String getStringToEdit() {
public String toDescriptionString(int decimals) {
String pattern = "#0.#######################################"; // If you like 4 zeros
DecimalFormat myFormatter = new DecimalFormat(pattern.substring(0,3+decimals));
return myFormatter.format(this) + " " + currency;
}
public String toEditString() {
return super.toString();
}
public String toEquivalentString(double rateValue) {
if (rateValue > 0) {
BigDecimal biRate = new BigDecimal(rateValue);
BigDecimal exchangeCurs = biRate.multiply(this);
exchangeCurs = exchangeCurs.setScale(2, RoundingMode.DOWN);
return "≈ USD  " + exchangeCurs.toString();
} else {
return "";
}
}
public boolean isZero() {
return compareTo(BigDecimal.ZERO)==0;
}
@ -156,8 +185,8 @@ public abstract class CoinEngine {
public abstract String calculateAddress(byte[] pkUncompressed) throws NoSuchProviderException, NoSuchAlgorithmException;
public abstract Amount convertToAmount(InternalAmount internalAmount);
public abstract Amount convertToAmount(String strAmount);
public abstract Amount convertToAmount(InternalAmount internalAmount) throws Exception;
public abstract Amount convertToAmount(String strAmount, String currency);
public abstract InternalAmount convertToInternalAmount(Amount amount) throws Exception;
public abstract InternalAmount convertToInternalAmount(byte[] bytes) throws Exception;