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Add a builder function to InventoryMessage

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This commit is contained in:
Mike Hearn 2013-11-10 20:05:22 +01:00
parent 688ba42c45
commit 4da8fbc301
1 changed files with 11 additions and 0 deletions
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11
core/src/main/java/com/google/bitcoin/core/InventoryMessage.java
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@ -16,6 +16,8 @@
package com.google.bitcoin.core;
import static com.google.common.base.Preconditions.checkArgument;
/**
* <p>Represents the "inv" P2P network message. An inv contains a list of hashes of either blocks or transactions. It's
* a bandwidth optimization - on receiving some data, a (fully validating) peer sends every connected peer an inv
@ -57,4 +59,13 @@ public class InventoryMessage extends ListMessage {
public void addTransaction(Transaction tx) {
addItem(new InventoryItem(InventoryItem.Type.Transaction, tx.getHash()));
}
/** Creates a new inv message for the given transactions. */
public static InventoryMessage with(Transaction... txns) {
checkArgument(txns.length > 0);
InventoryMessage result = new InventoryMessage(txns[0].getParams());
for (Transaction tx : txns)
result.addTransaction(tx);
return result;
}
}