net.corda.testing.node

Class MockServices

net.corda.testing.node.MockServices

All Implemented Interfaces:

ServiceHub, ServicesForResolution

public class MockServices
implements ServiceHub

An implementation of interface ServiceHub that is designed for in-memory unit tests of contract validation logic. It has enough functionality to do tests of code that queries the vault, inserts to the vault, and constructs/checks transactions. However it isn't enough to test flows and other aspects of an app that require a network. For that you should investigate class MockNetwork.

There are a variety of constructors that can be used to supply enough data to simulate a node. Each mock service hub must have at least an identity of its own. The other components have defaults that work in most situations.

See Also:

interface ServiceHub, class MockNetwork

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MockServices.Companion

Nested classes/interfaces inherited from interface net.corda.core.node.ServiceHub

ServiceHub.DefaultImpls

Field Summary

Fields

Modifier and Type	Field and Description
static MockServices.Companion	Companion

Constructor Summary

Constructors

Constructor and Description
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, TestIdentity initialIdentity, IdentityService identityService, java.security.KeyPair moreKeys) Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, TestIdentity initialIdentity, java.security.KeyPair moreKeys) Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, TestIdentity initialIdentity, IdentityService identityService, NetworkParameters networkParameters, java.security.KeyPair moreKeys)
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, TestIdentity initialIdentity, IdentityService identityService, NetworkParameters networkParameters, java.security.KeyPair[] moreKeys, KeyManagementService keyManagementService)
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, CordaX500Name initialIdentityName, IdentityService identityService, java.security.KeyPair key, java.security.KeyPair moreKeys) Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, CordaX500Name initialIdentityName, java.security.KeyPair key, java.security.KeyPair moreKeys) Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, CordaX500Name initialIdentityName, IdentityService identityService) Create a mock interface ServiceHub that can't load CorDapp code, which uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages, CordaX500Name initialIdentityName) Create a mock interface ServiceHub that can't load CorDapp code, which uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.
MockServices(java.lang.Iterable<java.lang.String> cordappPackages) Create a mock interface ServiceHub that can't load CorDapp code, and which uses a default service identity.
MockServices(CordaX500Name initialIdentityName, IdentityService identityService, java.security.KeyPair key, java.security.KeyPair moreKeys) Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.
MockServices(CordaX500Name initialIdentityName, java.security.KeyPair key, java.security.KeyPair moreKeys) Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.
MockServices(CordaX500Name initialIdentityName, IdentityService identityService) Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity. It has no keys.
MockServices(CordaX500Name initialIdentityName) Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity. It has no keys.
MockServices(java.util.List<java.lang.String> cordappPackages, CordaX500Name initialIdentityName, IdentityService identityService, NetworkParameters networkParameters)
MockServices(java.util.List<java.lang.String> cordappPackages, CordaX500Name initialIdentityName, IdentityService identityService, NetworkParameters networkParameters, java.security.KeyPair key)
MockServices(TestIdentity firstIdentity, net.corda.testing.core.TestIdentity moreIdentities) A helper constructor that requires at least one test identity to be registered, and which takes the package of the caller as the package in which to find app code. This is the most convenient constructor and the one that is normally worth using. The first identity is the identity of this service hub, the rest are identities that it is aware of.
MockServices(TestIdentity firstIdentity, NetworkParameters networkParameters, net.corda.testing.core.TestIdentity moreIdentities)
MockServices(java.util.List<java.lang.String> cordappPackages, TestIdentity firstIdentity, net.corda.testing.core.TestIdentity moreIdentities)
MockServices(java.util.List<java.lang.String> cordappPackages, TestIdentity firstIdentity, NetworkParameters networkParameters, net.corda.testing.core.TestIdentity moreIdentities)
MockServices() Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses a default service identity.

Method Summary

Modifier and Type	Method and Description
void	addMockCordapp(java.lang.String contractClassName) Add the given package name to the list of packages which will be scanned for cordapp contract verification code
<T extends SerializeAsToken> T	cordaService(java.lang.Class<T> type) Return the singleton instance of the given Corda service type. This is a class that is annotated with interface CordaService and will have automatically been registered by the node.
MockAttachmentStorage	getAttachments() Provides access to storage of arbitrary JAR files (which may contain only data, no code).
TestClock	getClock() A Clock representing the node's current time. This should be used in preference to directly accessing the clock so the current time can be controlled during unit testing.
ContractUpgradeService	getContractUpgradeService() The interface ContractUpgradeService is responsible for securely upgrading contract state objects according to a specified and mutually agreed (amongst participants) contract version.
java.lang.ClassLoader	getCordappClassloader() Returns the classloader containing all jar deployed in the 'cordapps' folder.
CordappProvider	getCordappProvider() Provides access to anything relating to cordapps including contract attachment resolution and app context
IdentityService	getIdentityService() An identity service maintains a directory of parties by their associated distinguished name/public keys and thus
KeyManagementService	getKeyManagementService() The key management service is responsible for storing and using private keys to sign things. An implementation of this may, for example, call out to a hardware security module that enforces various auditing and frequency-of-use requirements.
NodeInfo	getMyInfo() The class NodeInfo object corresponding to our own entry in the network map.
NetworkMapCache	getNetworkMapCache() A network map contains lists of nodes on the network along with information about their identity keys, services they provide and host names or IP addresses where they can be connected to. The cache wraps around a map fetched from an authoritative service, and adds easy lookup of the data stored within it. Generally it would be initialised with a specified network map service, which it fetches data from and then subscribes to updates of.
NetworkParameters	getNetworkParameters() Returns the network parameters the node is operating under.
NetworkParametersService	getNetworkParametersService() Provides access to historical network parameters that are used in transaction resolution.
ServicesForResolution	getServicesForResolution()
net.corda.core.node.services.TransactionVerifierService	getTransactionVerifierService() INTERNAL. DO NOT USE.
TransactionStorage	getValidatedTransactions() A map of hash-
VaultService	getVaultService() The vault service lets you observe, soft lock and add notes to states that involve you or are relevant to your node in some way. Additionally you may query and track states that correspond to various criteria.
java.sql.Connection	jdbcSession() Exposes a JDBC connection (session) object using the currently configured database. Applications can use this to execute arbitrary SQL queries (native, direct, prepared, callable) against its Node database tables (including custom contract tables defined by extending interface QueryableState).
Attachment	loadContractAttachment(StateRef stateRef) Returns a dummy Attachment, in context of signature constrains non-downgrade rule this default to contract class version 1.
TransactionState<?>	loadState(StateRef stateRef) Given a class StateRef loads the referenced transaction and looks up the specified output interface ContractState.
java.util.Set<net.corda.core.contracts.StateAndRef>	loadStates(java.util.Set<net.corda.core.contracts.StateRef> stateRefs) Given a Set of class StateRef's loads the referenced transaction and looks up the specified output interface ContractState.
static java.util.Properties	makeTestDataSourceProperties(java.lang.String nodeName) Make properties appropriate for creating a DataSource for unit tests. Defaults configuration of in-memory H2 instance. If 'databaseProvider' system property is set then creates a config from the relevant config file is present in resources folder (used to parametrize test to run against a remote database).
static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices>	makeTestDatabaseAndMockServices(java.util.List<java.lang.String> cordappPackages, IdentityService identityService, TestIdentity initialIdentity, NetworkParameters networkParameters, java.security.KeyPair moreKeys) Makes database and mock services appropriate for unit tests.
static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices>	makeTestDatabaseAndMockServices(java.util.List<java.lang.String> cordappPackages, IdentityService identityService, TestIdentity initialIdentity, java.security.KeyPair moreKeys) Makes database and mock services appropriate for unit tests.
static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices>	makeTestDatabaseAndPersistentServices(java.util.List<java.lang.String> cordappPackages, TestIdentity initialIdentity, NetworkParameters networkParameters, java.util.Set<java.security.KeyPair> moreKeys, java.util.Set<net.corda.core.identity.PartyAndCertificate> moreIdentities) Makes database and persistent services appropriate for unit tests which require persistence across the vault, identity service and key managment service.
static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices>	makeTestDatabaseAndPersistentServices(java.util.List<java.lang.String> cordappPackages, TestIdentity initialIdentity, java.util.Set<java.security.KeyPair> moreKeys, java.util.Set<net.corda.core.identity.PartyAndCertificate> moreIdentities) Makes database and persistent services appropriate for unit tests which require persistence across the vault, identity service and key managment service.
void	recordTransactions(StatesToRecord statesToRecord, java.lang.Iterable<net.corda.core.transactions.SignedTransaction> txs) Stores the given class SignedTransactions in the local transaction storage and then sends them to the vault for further processing if statesToRecord is not StatesToRecord.NONE. This is expected to be run within a database transaction.
java.lang.Void	registerUnloadHandler(kotlin.jvm.functions.Function0<kotlin.Unit> runOnStop) Allows the registration of a callback that may inform services when the app is shutting down.
void	setNetworkParametersService(NetworkParametersService p) Provides access to historical network parameters that are used in transaction resolution.
<T> T	withEntityManager(kotlin.jvm.functions.Function1<? super javax.persistence.EntityManager,? extends T> block) Exposes the Java Persistence API (JPA) to flows via a restricted EntityManager. This method can be used to persist and query entities which inherit from MappedSchema. This is particularly useful if off-ledger data needs to be kept in conjunction with on-ledger state data.
void	withEntityManager(java.util.function.Consumer<javax.persistence.EntityManager> block) Exposes the Java Persistence API (JPA) to flows via a restricted EntityManager. This method can be used to persist and query entities which inherit from MappedSchema. This is particularly useful if off-ledger data needs to be kept in conjunction with on-ledger state data.

Methods inherited from interface net.corda.core.node.ServiceHub

addSignature, addSignature, cordaService, createSignature, createSignature, createSignature, createSignature, getAppContext, getClock, getContractUpgradeService, getKeyManagementService, getMyInfo, getNetworkMapCache, getValidatedTransactions, getVaultService, jdbcSession, recordTransactions, recordTransactions, recordTransactions, recordTransactions, recordTransactions, registerUnloadHandler, signInitialTransaction, signInitialTransaction, signInitialTransaction, toStateAndRef, withEntityManager, withEntityManager

Methods inherited from interface net.corda.core.node.ServicesForResolution

getAttachments, getCordappProvider, getIdentityService, getNetworkParameters, getNetworkParametersService, loadContractAttachment, loadState, loadStates

Field Detail

Companion

public static MockServices.Companion Companion

Constructor Detail

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    TestIdentity initialIdentity,
                    IdentityService identityService,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    TestIdentity initialIdentity,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    TestIdentity initialIdentity,
                    IdentityService identityService,
                    NetworkParameters networkParameters,
                    java.security.KeyPair moreKeys)

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    TestIdentity initialIdentity,
                    IdentityService identityService,
                    NetworkParameters networkParameters,
                    java.security.KeyPair[] moreKeys,
                    KeyManagementService keyManagementService)

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName,
                    IdentityService identityService,
                    java.security.KeyPair key,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName,
                    java.security.KeyPair key,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub that looks for app code in the given package names, uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName,
                    IdentityService identityService)

Create a mock interface ServiceHub that can't load CorDapp code, which uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName)

Create a mock interface ServiceHub that can't load CorDapp code, which uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.lang.Iterable<java.lang.String> cordappPackages)

Create a mock interface ServiceHub that can't load CorDapp code, and which uses a default service identity.

See Also:

interface ServiceHub

MockServices

public MockServices(CordaX500Name initialIdentityName,
                    IdentityService identityService,
                    java.security.KeyPair key,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(CordaX500Name initialIdentityName,
                    java.security.KeyPair key,
                    java.security.KeyPair moreKeys)

Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(CordaX500Name initialIdentityName,
                    IdentityService identityService)

Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity. It has no keys.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(CordaX500Name initialIdentityName)

Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses the provided identity service (you can get one from MockServicesKt.makeTestIdentityService) and which represents the given identity. It has no keys.

See Also:

interface ServiceHub, MockServicesKt.makeTestIdentityService

MockServices

public MockServices(java.util.List<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName,
                    IdentityService identityService,
                    NetworkParameters networkParameters)

MockServices

public MockServices(java.util.List<java.lang.String> cordappPackages,
                    CordaX500Name initialIdentityName,
                    IdentityService identityService,
                    NetworkParameters networkParameters,
                    java.security.KeyPair key)

MockServices

public MockServices(TestIdentity firstIdentity,
                    net.corda.testing.core.TestIdentity moreIdentities)

A helper constructor that requires at least one test identity to be registered, and which takes the package of the caller as the package in which to find app code. This is the most convenient constructor and the one that is normally worth using. The first identity is the identity of this service hub, the rest are identities that it is aware of.

MockServices

public MockServices(TestIdentity firstIdentity,
                    NetworkParameters networkParameters,
                    net.corda.testing.core.TestIdentity moreIdentities)

MockServices

public MockServices(java.util.List<java.lang.String> cordappPackages,
                    TestIdentity firstIdentity,
                    net.corda.testing.core.TestIdentity moreIdentities)

MockServices

public MockServices(java.util.List<java.lang.String> cordappPackages,
                    TestIdentity firstIdentity,
                    NetworkParameters networkParameters,
                    net.corda.testing.core.TestIdentity moreIdentities)

MockServices

public MockServices()

Create a mock interface ServiceHub which uses the package of the caller to find CorDapp code. It uses a default service identity.

See Also:

interface ServiceHub

Method Detail

getCordappClassloader

public java.lang.ClassLoader getCordappClassloader()

Returns the classloader containing all jar deployed in the 'cordapps' folder.

recordTransactions

public void recordTransactions(StatesToRecord statesToRecord,
                               java.lang.Iterable<net.corda.core.transactions.SignedTransaction> txs)

Stores the given class SignedTransactions in the local transaction storage and then sends them to the vault for further processing if statesToRecord is not StatesToRecord.NONE. This is expected to be run within a database transaction.

Parameters:

txs - The transactions to record.

statesToRecord - how the vault should treat the output states of the transaction.

See Also:

class SignedTransaction

getNetworkParameters

public NetworkParameters getNetworkParameters()

Returns the network parameters the node is operating under.

getAttachments

public MockAttachmentStorage getAttachments()

Provides access to storage of arbitrary JAR files (which may contain only data, no code).

getVaultService

public VaultService getVaultService()

The vault service lets you observe, soft lock and add notes to states that involve you or are relevant to your node in some way. Additionally you may query and track states that correspond to various criteria.

getContractUpgradeService

public ContractUpgradeService getContractUpgradeService()

The interface ContractUpgradeService is responsible for securely upgrading contract state objects according to a specified and mutually agreed (amongst participants) contract version.

See Also:

interface ContractUpgradeService, class ContractUpgradeFlow

getNetworkMapCache

public NetworkMapCache getNetworkMapCache()

A network map contains lists of nodes on the network along with information about their identity keys, services they provide and host names or IP addresses where they can be connected to. The cache wraps around a map fetched from an authoritative service, and adds easy lookup of the data stored within it. Generally it would be initialised with a specified network map service, which it fetches data from and then subscribes to updates of.

getClock

public TestClock getClock()

A Clock representing the node's current time. This should be used in preference to directly accessing the clock so the current time can be controlled during unit testing.

See Also:

Clock

getMyInfo

public NodeInfo getMyInfo()

The class NodeInfo object corresponding to our own entry in the network map.

See Also:

class NodeInfo

getTransactionVerifierService

public net.corda.core.node.services.TransactionVerifierService getTransactionVerifierService()

INTERNAL. DO NOT USE.

getCordappProvider

public CordappProvider getCordappProvider()

Provides access to anything relating to cordapps including contract attachment resolution and app context

getNetworkParametersService

public NetworkParametersService getNetworkParametersService()

Provides access to historical network parameters that are used in transaction resolution.

setNetworkParametersService

public void setNetworkParametersService(NetworkParametersService p)

Provides access to historical network parameters that are used in transaction resolution.

getServicesForResolution

public ServicesForResolution getServicesForResolution()

cordaService

public <T extends SerializeAsToken> T cordaService(java.lang.Class<T> type)

Return the singleton instance of the given Corda service type. This is a class that is annotated with interface CordaService and will have automatically been registered by the node.

Throws:

- If type is not annotated with interface CordaService or if the instance is not found.

See Also:

interface CordaService

jdbcSession

public java.sql.Connection jdbcSession()

Exposes a JDBC connection (session) object using the currently configured database. Applications can use this to execute arbitrary SQL queries (native, direct, prepared, callable) against its Node database tables (including custom contract tables defined by extending interface QueryableState).

When used within a flow, this session automatically forms part of the enclosing flow transaction boundary, and thus queryable data will include everything committed as of the last checkpoint.

Returns:

A Connection

Throws:

- if called outside of a transaction.

See Also:

interface QueryableState

withEntityManager

public <T> T withEntityManager(kotlin.jvm.functions.Function1<? super javax.persistence.EntityManager,? extends T> block)

Exposes the Java Persistence API (JPA) to flows via a restricted EntityManager. This method can be used to persist and query entities which inherit from MappedSchema. This is particularly useful if off-ledger data needs to be kept in conjunction with on-ledger state data.

NOTE: Suspendable flow operations such as send, receive, subFlow and sleep, cannot be called within the lambda.

Parameters:

block - a lambda function with access to an EntityManager.

See Also:

MappedSchema

withEntityManager

public void withEntityManager(java.util.function.Consumer<javax.persistence.EntityManager> block)

Exposes the Java Persistence API (JPA) to flows via a restricted EntityManager. This method can be used to persist and query entities which inherit from MappedSchema. This is particularly useful if off-ledger data needs to be kept in conjunction with on-ledger state data.

NOTE: Suspendable flow operations such as send, receive, subFlow and sleep, cannot be called within the lambda.

Parameters:

block - a lambda function with access to an EntityManager.

See Also:

MappedSchema

registerUnloadHandler

public java.lang.Void registerUnloadHandler(kotlin.jvm.functions.Function0<kotlin.Unit> runOnStop)

Allows the registration of a callback that may inform services when the app is shutting down.

The intent is to allow the cleaning up of resources - e.g. releasing ports.

You should not rely on this to clean up executing flows - that's what quasar is for.

Please note that the shutdown handler is not guaranteed to be called. In production the node process may crash, be killed by the operating system and other forms of fatal termination may occur that result in this code never running. So you should use this functionality only for unit/integration testing or for code that can optimise this shutdown e.g. by cleaning up things that would otherwise trigger a slow recovery process next time the node starts.

addMockCordapp

public void addMockCordapp(java.lang.String contractClassName)

Add the given package name to the list of packages which will be scanned for cordapp contract verification code

loadState

public TransactionState<?> loadState(StateRef stateRef)

Given a class StateRef loads the referenced transaction and looks up the specified output interface ContractState.

WARNING Do not use this method unless you really only want a single state - any batch loading should go through ServicesForResolution.loadStates as repeatedly calling ServicesForResolution.loadState can lead to repeat deserialsiation work and severe performance degradation.

Throws:

- if stateRef points to a non-existent transaction.

See Also:

class StateRef, interface ContractState, ServicesForResolution.loadStates, ServicesForResolution.loadState

loadStates

public java.util.Set<net.corda.core.contracts.StateAndRef> loadStates(java.util.Set<net.corda.core.contracts.StateRef> stateRefs)

Given a Set of class StateRef's loads the referenced transaction and looks up the specified output interface ContractState.

Throws:

- if stateRef points to a non-existent transaction.

See Also:

Set, class StateRef, interface ContractState

loadContractAttachment

public Attachment loadContractAttachment(StateRef stateRef)

Returns a dummy Attachment, in context of signature constrains non-downgrade rule this default to contract class version 1.

getValidatedTransactions

public TransactionStorage getValidatedTransactions()

A map of hash-

>tx where tx has been signature/contract validated and the states are known to be correct.The signatures aren't technically needed after that point, but we keep them around so that we can relaythe transaction data to other nodes that need it.

getIdentityService

public IdentityService getIdentityService()

An identity service maintains a directory of parties by their associated distinguished name/public keys and thus

supports lookup of a party given its key, or name. The service also manages the certificates linking confidentialidentities back to the well known identity (i.e. the identity in the network map) of a party.

getKeyManagementService

public KeyManagementService getKeyManagementService()

The key management service is responsible for storing and using private keys to sign things. An implementation of this may, for example, call out to a hardware security module that enforces various auditing and frequency-of-use requirements.

You don't normally need to use this directly. If you have a class TransactionBuilder and wish to sign it to get a class SignedTransaction, look at signInitialTransaction.

See Also:

class TransactionBuilder, class SignedTransaction

makeTestDataSourceProperties

public static java.util.Properties makeTestDataSourceProperties(java.lang.String nodeName)

Make properties appropriate for creating a DataSource for unit tests. Defaults configuration of in-memory H2 instance. If 'databaseProvider' system property is set then creates a config from the relevant config file is present in resources folder (used to parametrize test to run against a remote database).

Parameters:

nodeName - Reflects the "instance" of the in-memory database or database username/schema. Defaults to a random string.

makeTestDatabaseAndMockServices

public static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices> makeTestDatabaseAndMockServices(java.util.List<java.lang.String> cordappPackages,
                                                                                                                                                       IdentityService identityService,
                                                                                                                                                       TestIdentity initialIdentity,
                                                                                                                                                       NetworkParameters networkParameters,
                                                                                                                                                       java.security.KeyPair moreKeys)

Makes database and mock services appropriate for unit tests.

Parameters:

cordappPackages - A List of cordapp packages to scan for any cordapp code, e.g. contract verification code, flows and services.

identityService - An instance of interface IdentityService, see MockServicesKt.makeTestIdentityService.

initialIdentity - The first (typically sole) identity the services will represent.

moreKeys - A list of additional KeyPair instances to be used by class MockServices.

Returns:

A pair where the first element is the instance of CordaPersistence and the second is class MockServices.

makeTestDatabaseAndMockServices

public static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices> makeTestDatabaseAndMockServices(java.util.List<java.lang.String> cordappPackages,
                                                                                                                                                       IdentityService identityService,
                                                                                                                                                       TestIdentity initialIdentity,
                                                                                                                                                       java.security.KeyPair moreKeys)

Makes database and mock services appropriate for unit tests.

Parameters:

cordappPackages - A List of cordapp packages to scan for any cordapp code, e.g. contract verification code, flows and services.

identityService - An instance of interface IdentityService, see MockServicesKt.makeTestIdentityService.

initialIdentity - The first (typically sole) identity the services will represent.

moreKeys - A list of additional KeyPair instances to be used by class MockServices.

Returns:

A pair where the first element is the instance of CordaPersistence and the second is class MockServices.

makeTestDatabaseAndPersistentServices

public static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices> makeTestDatabaseAndPersistentServices(java.util.List<java.lang.String> cordappPackages,
                                                                                                                                                             TestIdentity initialIdentity,
                                                                                                                                                             NetworkParameters networkParameters,
                                                                                                                                                             java.util.Set<java.security.KeyPair> moreKeys,
                                                                                                                                                             java.util.Set<net.corda.core.identity.PartyAndCertificate> moreIdentities)

Makes database and persistent services appropriate for unit tests which require persistence across the vault, identity service and key managment service.

Parameters:

cordappPackages - A List of cordapp packages to scan for any cordapp code, e.g. contract verification code, flows and services.

initialIdentity - The first (typically sole) identity the services will represent.

moreKeys - A list of additional KeyPair instances to be used by class MockServices.

moreIdentities - A list of additional KeyPair instances to be used by class MockServices.

Returns:

A pair where the first element is the instance of CordaPersistence and the second is class MockServices.

makeTestDatabaseAndPersistentServices

public static kotlin.Pair<net.corda.nodeapi.internal.persistence.CordaPersistence,net.corda.testing.node.MockServices> makeTestDatabaseAndPersistentServices(java.util.List<java.lang.String> cordappPackages,
                                                                                                                                                             TestIdentity initialIdentity,
                                                                                                                                                             java.util.Set<java.security.KeyPair> moreKeys,
                                                                                                                                                             java.util.Set<net.corda.core.identity.PartyAndCertificate> moreIdentities)

Makes database and persistent services appropriate for unit tests which require persistence across the vault, identity service and key managment service.

Parameters:

cordappPackages - A List of cordapp packages to scan for any cordapp code, e.g. contract verification code, flows and services.

initialIdentity - The first (typically sole) identity the services will represent.

moreKeys - A list of additional KeyPair instances to be used by class MockServices.

moreIdentities - A list of additional KeyPair instances to be used by class MockServices.

Returns:

A pair where the first element is the instance of CordaPersistence and the second is class MockServices.