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Add support for CAP 35 operations when building transactions (#325)
This PR adds support for building transactions using the operations introduced in CAP 35
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104 changes: 104 additions & 0 deletions
104
src/main/java/org/stellar/sdk/ClawbackClaimableBalanceOperation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package org.stellar.sdk; | ||
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| import com.google.common.base.Objects; | ||
| import org.stellar.sdk.xdr.ClawbackClaimableBalanceOp; | ||
| import org.stellar.sdk.xdr.OperationType; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
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| /** | ||
| * | ||
| * Represents a Clawback Claimable Balance operation. | ||
| * @see <a href="https://www.stellar.org/developers/learn/concepts/list-of-operations.html" target="_blank">List of Operations</a> | ||
| */ | ||
| public class ClawbackClaimableBalanceOperation extends Operation { | ||
| private final String balanceId; | ||
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| private ClawbackClaimableBalanceOperation(String balanceId) { | ||
| this.balanceId = checkNotNull(balanceId, "balanceId cannot be null"); | ||
| } | ||
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| /** | ||
| * The id of the claimable balance which will be clawed back. | ||
| */ | ||
| public String getBalanceId() { | ||
| return balanceId; | ||
| } | ||
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| @Override | ||
| org.stellar.sdk.xdr.Operation.OperationBody toOperationBody() { | ||
| ClawbackClaimableBalanceOp op = new ClawbackClaimableBalanceOp(); | ||
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| op.setBalanceID(Util.claimableBalanceIdToXDR(balanceId)); | ||
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| org.stellar.sdk.xdr.Operation.OperationBody body = new org.stellar.sdk.xdr.Operation.OperationBody(); | ||
| body.setDiscriminant(OperationType.CLAWBACK_CLAIMABLE_BALANCE); | ||
| body.setClawbackClaimableBalanceOp(op); | ||
| return body; | ||
| } | ||
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| /** | ||
| * Builds ClawbackClaimableBalanceOperation. | ||
| * @see ClawbackClaimableBalanceOperation | ||
| */ | ||
| public static class Builder { | ||
| private final String balanceId; | ||
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| private String mSourceAccount; | ||
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| Builder(ClawbackClaimableBalanceOp op) { | ||
| balanceId = Util.xdrToClaimableBalanceId(op.getBalanceID()); | ||
| } | ||
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| /** | ||
| * Creates a new ClawbackClaimableBalanceOperation builder. | ||
| * @param balanceId The id of the claimable balance which will be clawed back. | ||
| */ | ||
| public Builder(String balanceId) { | ||
| this.balanceId = balanceId; | ||
| } | ||
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| /** | ||
| * Set source account of this operation | ||
| * @param sourceAccount Source account | ||
| * @return Builder object so you can chain methods. | ||
| */ | ||
| public Builder setSourceAccount(String sourceAccount) { | ||
| mSourceAccount = sourceAccount; | ||
| return this; | ||
| } | ||
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| /** | ||
| * Builds an operation | ||
| */ | ||
| public ClawbackClaimableBalanceOperation build() { | ||
| ClawbackClaimableBalanceOperation operation = new ClawbackClaimableBalanceOperation( | ||
| balanceId | ||
| ); | ||
| if (mSourceAccount != null) { | ||
| operation.setSourceAccount(mSourceAccount); | ||
| } | ||
| return operation; | ||
| } | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hashCode( | ||
| this.getSourceAccount(), | ||
| this.balanceId | ||
| ); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object object) { | ||
| if (object == null || !(object instanceof ClawbackClaimableBalanceOperation)) { | ||
| return false; | ||
| } | ||
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| ClawbackClaimableBalanceOperation other = (ClawbackClaimableBalanceOperation) object; | ||
| return Objects.equal(this.balanceId, other.balanceId); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package org.stellar.sdk; | ||
|
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| import com.google.common.base.Objects; | ||
| import org.stellar.sdk.xdr.*; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
|
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| /** | ||
| * | ||
| * Represents a Clawback operation. | ||
| * @see <a href="https://www.stellar.org/developers/learn/concepts/list-of-operations.html" target="_blank">List of Operations</a> | ||
| */ | ||
| public class ClawbackOperation extends Operation { | ||
| private final String from; | ||
| private final AssetTypeCreditAlphaNum asset; | ||
| private final String amount; | ||
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| private ClawbackOperation(String from, AssetTypeCreditAlphaNum asset, String amount) { | ||
| this.from = checkNotNull(from, "from cannot be null"); | ||
| this.asset = checkNotNull(asset, "asset cannot be null"); | ||
| this.amount = checkNotNull(amount, "amount cannot be null"); | ||
| } | ||
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| /** | ||
| * The account owning of the trustline. | ||
| */ | ||
| public String getFrom() { | ||
| return from; | ||
| } | ||
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| /** | ||
| * The amount to be clawed back. | ||
| */ | ||
| public String getAmount() { | ||
| return amount; | ||
| } | ||
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| /** | ||
| * The asset to be clawed back. | ||
| */ | ||
| public Asset getAsset() { | ||
| return asset; | ||
| } | ||
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| @Override | ||
| org.stellar.sdk.xdr.Operation.OperationBody toOperationBody() { | ||
| ClawbackOp op = new ClawbackOp(); | ||
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| // trustor | ||
| op.setFrom(StrKey.encodeToXDRMuxedAccount(this.from)); | ||
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| Int64 amount = new Int64(); | ||
| amount.setInt64(Operation.toXdrAmount(this.amount)); | ||
| op.setAmount(amount); | ||
| op.setAsset(asset.toXdr()); | ||
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| org.stellar.sdk.xdr.Operation.OperationBody body = new org.stellar.sdk.xdr.Operation.OperationBody(); | ||
| body.setDiscriminant(OperationType.CLAWBACK); | ||
| body.setClawbackOp(op); | ||
| return body; | ||
| } | ||
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| /** | ||
| * Builds ClawbackOperation operation. | ||
| * @see ClawbackOperation | ||
| */ | ||
| public static class Builder { | ||
| private final String from; | ||
| private final AssetTypeCreditAlphaNum asset; | ||
| private final String amount; | ||
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| private String mSourceAccount; | ||
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| Builder(ClawbackOp op) { | ||
| from = StrKey.encodeStellarAccountId(StrKey.muxedAccountToAccountId(op.getFrom())); | ||
| amount = Operation.fromXdrAmount(op.getAmount().getInt64().longValue()); | ||
| asset = Util.assertNonNativeAsset(Asset.fromXdr(op.getAsset())); | ||
| } | ||
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| /** | ||
| * Creates a new ClawbackOperation builder. | ||
| * @param from The account holding the trustline. | ||
| * @param asset The asset held in the trustline. | ||
| * @param amount The amount to be clawed back. | ||
| */ | ||
| public Builder(String from, Asset asset, String amount) { | ||
| this.from = from; | ||
| this.asset = Util.assertNonNativeAsset(asset); | ||
| this.amount = amount; | ||
| } | ||
|
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| /** | ||
| * Set source account of this operation | ||
| * @param sourceAccount Source account | ||
| * @return Builder object so you can chain methods. | ||
| */ | ||
| public Builder setSourceAccount(String sourceAccount) { | ||
| mSourceAccount = sourceAccount; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Builds an operation | ||
| */ | ||
| public ClawbackOperation build() { | ||
| ClawbackOperation operation = new ClawbackOperation( | ||
| from, asset, amount | ||
| ); | ||
| if (mSourceAccount != null) { | ||
| operation.setSourceAccount(mSourceAccount); | ||
| } | ||
| return operation; | ||
| } | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hashCode( | ||
| this.getSourceAccount(), | ||
| this.from, | ||
| this.asset, | ||
| this.amount | ||
| ); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object object) { | ||
| if (object == null || !(object instanceof ClawbackOperation)) { | ||
| return false; | ||
| } | ||
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| ClawbackOperation other = (ClawbackOperation) object; | ||
| return Objects.equal(this.from, other.from) && | ||
| Objects.equal(this.asset, other.asset) && | ||
| Objects.equal(this.amount, other.amount) && | ||
| Objects.equal(this.getSourceAccount(), other.getSourceAccount()); | ||
| } | ||
| } |
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