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Add support for InvokeHostFunctionOperation.
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src/main/java/org/stellar/sdk/InvokeHostFunctionOperation.java
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| @@ -0,0 +1,153 @@ | ||
| package org.stellar.sdk; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
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| import com.google.common.base.Objects; | ||
| import java.util.Arrays; | ||
| import org.stellar.sdk.xdr.*; | ||
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| /** | ||
| * Represents <a | ||
| * href="https://developers.stellar.org/docs/fundamentals-and-concepts/list-of-operations#invoke-host-function" | ||
| * target="_blank">InvokeHostFunction</a> operation. | ||
| * | ||
| * @see <a href="https://developers.stellar.org/docs/fundamentals-and-concepts/list-of-operations" | ||
| * target="_blank">List of Operations</a> | ||
| */ | ||
| public class InvokeHostFunctionOperation extends Operation { | ||
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| private final HostFunction hostFunction; | ||
| private SorobanAuthorizationEntry[] auth; | ||
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| /** | ||
| * Constructs a new InvokeHostFunctionOperation object using the specified parameters. | ||
| * | ||
| * @param hostFunction host function to execute (with its wrapped parameters) | ||
| * @param auth the authorizations required to execute the host function | ||
| */ | ||
| private InvokeHostFunctionOperation(HostFunction hostFunction, SorobanAuthorizationEntry[] auth) { | ||
| this.hostFunction = hostFunction; | ||
| this.auth = auth; | ||
| } | ||
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| /** | ||
| * Returns host function to execute (with its wrapped parameters). | ||
| * | ||
| * @return The host function to execute. | ||
| */ | ||
| public HostFunction getHostFunction() { | ||
| return hostFunction; | ||
| } | ||
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| /** | ||
| * Returns the authorizations required to execute the host function. | ||
| * | ||
| * @return The authorizations. | ||
| */ | ||
| public SorobanAuthorizationEntry[] getAuth() { | ||
| return auth; | ||
| } | ||
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| /** | ||
| * Sets the authorizations required to execute the host function. | ||
| * | ||
| * @param auth The authorizations. | ||
| */ | ||
| public void setAuth(SorobanAuthorizationEntry[] auth) { | ||
| this.auth = auth; | ||
| } | ||
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| @Override | ||
| org.stellar.sdk.xdr.Operation.OperationBody toOperationBody(AccountConverter accountConverter) { | ||
| InvokeHostFunctionOp op = new InvokeHostFunctionOp(); | ||
| op.setHostFunction(this.hostFunction); | ||
| op.setAuth(this.auth); | ||
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| org.stellar.sdk.xdr.Operation.OperationBody body = | ||
| new org.stellar.sdk.xdr.Operation.OperationBody(); | ||
| body.setDiscriminant(OperationType.INVOKE_HOST_FUNCTION); | ||
| body.setInvokeHostFunctionOp(op); | ||
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| return body; | ||
| } | ||
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| /** | ||
| * Builds InvokeHostFunction operation. | ||
| * | ||
| * @see InvokeHostFunctionOperation | ||
| */ | ||
| public static class Builder { | ||
| private final HostFunction hostFunction; | ||
| private final SorobanAuthorizationEntry[] auth; | ||
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| private String mSourceAccount; | ||
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| /** | ||
| * Creates a new InvokeHostFunction builder using the specified parameters. | ||
| * | ||
| * @param op the XDR representation of the {@link InvokeHostFunctionOperation}. | ||
| */ | ||
| Builder(InvokeHostFunctionOp op) { | ||
| this.hostFunction = op.getHostFunction(); | ||
| this.auth = op.getAuth(); | ||
| } | ||
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| /** | ||
| * Creates a new InvokeHostFunction builder using the specified parameters. | ||
| * | ||
| * @param hostFunction host function to execute (with its wrapped parameters) | ||
| * @param auth the authorizations required to execute the host function | ||
| */ | ||
| public Builder(HostFunction hostFunction, SorobanAuthorizationEntry[] auth) { | ||
| this.hostFunction = checkNotNull(hostFunction, "hostFunction cannot be null"); | ||
| this.auth = checkNotNull(auth, "auth cannot be null"); | ||
| } | ||
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| /** | ||
| * Creates a new InvokeHostFunction builder using the specified parameters. | ||
| * | ||
| * @param hostFunction host function to execute (with its wrapped parameters) | ||
| */ | ||
| public Builder(HostFunction hostFunction) { | ||
| this.hostFunction = checkNotNull(hostFunction, "hostFunction cannot be null"); | ||
| this.auth = new SorobanAuthorizationEntry[] {}; | ||
| } | ||
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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 = checkNotNull(sourceAccount, "sourceAccount cannot be null"); | ||
| return this; | ||
| } | ||
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| /** Builds an operation */ | ||
| public InvokeHostFunctionOperation build() { | ||
| InvokeHostFunctionOperation operation = | ||
| new InvokeHostFunctionOperation(this.hostFunction, this.auth); | ||
| if (mSourceAccount != null) { | ||
| operation.setSourceAccount(mSourceAccount); | ||
| } | ||
| return operation; | ||
| } | ||
| } | ||
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| public int hashCode() { | ||
| return Objects.hashCode(this.getSourceAccount(), hostFunction, Arrays.hashCode(auth)); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object object) { | ||
| if (!(object instanceof InvokeHostFunctionOperation)) { | ||
| return false; | ||
| } | ||
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| InvokeHostFunctionOperation o = (InvokeHostFunctionOperation) object; | ||
| return Objects.equal(this.getHostFunction(), o.getHostFunction()) | ||
| && Arrays.equals(this.getAuth(), o.getAuth()) | ||
| && Objects.equal(this.getSourceAccount(), o.getSourceAccount()); | ||
| } | ||
| } |
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