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Hedera™ Hashgraph SDK for Java
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/*-
*
* Hedera Java SDK
*
* Copyright (C) 2020 - 2024 Hedera Hashgraph, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.hedera.hashgraph.sdk;
import com.google.common.base.MoreObjects;
import com.google.protobuf.ByteString;
import com.hedera.hashgraph.sdk.proto.ServiceEndpoint;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import javax.annotation.Nullable;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* The metadata for a Node – including IP Address, and the crypto account associated with the Node.
*
* See Hedera Documentation
*/
public class NodeAddress implements Cloneable {
/**
* The RSA public key of the node.
*/
@Nullable
String publicKey;
/**
* The account to be paid for queries and transactions sent to this node.
*/
@Nullable
AccountId accountId;
/**
* A non-sequential identifier for the node.
*/
long nodeId;
/**
* A hash of the X509 cert used for gRPC traffic to this node.
*/
@Nullable
ByteString certHash;
/**
* A node's service IP addresses and ports.
*/
List addresses = Collections.emptyList();
/**
* A description of the node, with UTF-8 encoding up to 100 bytes.
*/
@Nullable
String description = null;
/**
* The amount of tinybars staked to the node.
*/
long stake;
/**
* Constructor.
*/
NodeAddress() {
}
/**
* Create a node from a protobuf.
*
* @param nodeAddress the protobuf
* @return the new node
*/
static NodeAddress fromProtobuf(com.hedera.hashgraph.sdk.proto.NodeAddress nodeAddress) {
var address = new ArrayList(nodeAddress.getServiceEndpointCount());
if (!nodeAddress.getIpAddress().isEmpty()) {
address.add(
Endpoint.fromProtobuf(ServiceEndpoint.newBuilder()
.setIpAddressV4(nodeAddress.getIpAddress())
.setPort(nodeAddress.getPortno())
.build())
);
}
for (var endpoint : nodeAddress.getServiceEndpointList()) {
address.add(Endpoint.fromProtobuf(endpoint));
}
var node = new NodeAddress()
.setPublicKey(nodeAddress.getRSAPubKey())
.setNodeId(nodeAddress.getNodeId())
.setCertHash(nodeAddress.getNodeCertHash())
.setAddresses(address)
.setDescription(nodeAddress.getDescription())
.setStake(nodeAddress.getStake());
if (nodeAddress.hasNodeAccountId()) {
node.setAccountId(AccountId.fromProtobuf(nodeAddress.getNodeAccountId()));
}
return node;
}
/**
* Extract the public key.
*
* @return the public key
*/
@Nullable
public String getPublicKey() {
return publicKey;
}
/**
* Assign the public key.
*
* @param publicKey the public key
* @return {@code this}
*/
public NodeAddress setPublicKey(String publicKey) {
this.publicKey = publicKey;
return this;
}
/**
* Extract the account id.
*
* @return the account id
*/
@Nullable
public AccountId getAccountId() {
return accountId;
}
/**
* Assign the account id.
*
* @param accountId the account id
* @return {@code this}
*/
public NodeAddress setAccountId(AccountId accountId) {
this.accountId = accountId;
return this;
}
/**
* Extract the node id.
*
* @return the node id
*/
public long getNodeId() {
return nodeId;
}
/**
* Assign the node id.
*
* @param nodeId the node id
* @return {@code this}
*/
public NodeAddress setNodeId(long nodeId) {
this.nodeId = nodeId;
return this;
}
/**
* Extract the certificate hash.
*
* @return the certificate hash
*/
@Nullable
@SuppressFBWarnings(
value = "EI_EXPOSE_REP",
justification = "A ByteString can't actually be mutated"
)
public ByteString getCertHash() {
return certHash;
}
/**
* Assign the certificate hash.
*
* @param certHash the certificate hash
* @return {@code this}
*/
@Nullable
@SuppressFBWarnings(
value = "EI_EXPOSE_REP2",
justification = "A ByteString can't actually be mutated"
)
public NodeAddress setCertHash(ByteString certHash) {
this.certHash = certHash;
return this;
}
/**
* Extract the list of addresses.
*
* @return the list of addresses
*/
public List getAddresses() {
return cloneEndpoints(addresses);
}
/**
* Assign the list of addresses.
*
* @param addresses the list of addresses
* @return {@code this}
*/
public NodeAddress setAddresses(List addresses) {
this.addresses = cloneEndpoints(addresses);
return this;
}
static List cloneEndpoints(List endpoints) {
List cloneEndpoints = new ArrayList<>(endpoints.size());
for (var endpoint : endpoints) {
cloneEndpoints.add(endpoint.clone());
}
return cloneEndpoints;
}
/**
* Extract the description.
*
* @return the description
*/
@Nullable
public String getDescription() {
return description;
}
/**
* Assign the description.
*
* @param description the description
* @return {@code this}
*/
public NodeAddress setDescription(String description) {
this.description = description;
return this;
}
/**
* Extract the tiny stake.
*
* @return the tiny stake
*/
public long getStake() {
return stake;
}
/**
* Assign the tiny bar stake.
*
* @param stake the tiny bar stake
* @return {@code this}
*/
public NodeAddress setStake(long stake) {
this.stake = stake;
return this;
}
/**
* Convert the node address object into a protobuf.
*
* @return the protobuf representation.
*/
com.hedera.hashgraph.sdk.proto.NodeAddress toProtobuf() {
var builder = com.hedera.hashgraph.sdk.proto.NodeAddress.newBuilder()
.setNodeId(nodeId);
if (certHash != null) {
builder.setNodeCertHash(certHash);
}
if (publicKey != null) {
builder.setRSAPubKey(publicKey);
}
if (accountId != null) {
builder.setNodeAccountId(accountId.toProtobuf());
}
if (description != null) {
builder.setDescription(description);
}
for (var address : addresses) {
builder.addServiceEndpoint(address.toProtobuf());
}
return builder.build();
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("publicKey", publicKey)
.add("accountId", accountId)
.add("nodeId", nodeId)
.add("certHash", certHash != null ? new String(certHash.toByteArray(), StandardCharsets.UTF_8) : null)
.add("addresses", addresses)
.add("description", description)
.add("stake", stake)
.toString();
}
@Override
public NodeAddress clone() {
try {
NodeAddress clone = (NodeAddress) super.clone();
clone.addresses = cloneEndpoints(addresses);
return clone;
} catch (CloneNotSupportedException e) {
throw new AssertionError();
}
}
}