* Upgrade to Apache Tuweni 2.0
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Remove intermediate repository
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Remove all occurrences of toBytes
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Migrate to tuweni-bytes
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* add changelog
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* correct reference tests
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Initial API changes
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* more changes
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Change APIs for VM ops
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Use constant UInt256.ONE
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Optimize a bit address <> word transformation
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* spotless
Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>
* Hook up an empty plugin for future unrestricted privacy encryption
Skeleton implementation for PrivacyPayloadEncryptionProvider
Wire up unencrypted serialization for private transactions
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* wire up simple privacy plugin in acceptance tests
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Pass the marker transaction through to plugin
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Move getters/setters into consistent place
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Rename plugin methods and config to be more generic
- remove protections around transaction.restriction
- the plugin is responsible for this
- make plugin more generic so could be used for restricted/unrestricted
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Provide more meaningful error message
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Fix up test naming to match impl naming
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Rename UNRESTRICTED_PRIVACY to PLUGIN_PRIVACY
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix typo in PrivacyParmeters::toString
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Fix exception messages to be PrivacyPlugin
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Remove blockNumber from getPrivateTransactionFromPayload
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* allow transaction pool to accept transactions with maxFeePerGas less than base fee
* make 1559 fields return short hex format instead of 8 bytes zero padded
* update reference tests to latest
Signed-off-by: garyschulte <garyschulte@gmail.com>
* address assumption that if 1559 is enabled there is a london fork block config
fixes#2192
Signed-off-by: garyschulte <garyschulte@gmail.com>
* omit null chainId from transaction json serialization, and fix merge regression
Signed-off-by: garyschulte <garyschulte@gmail.com>
* update json-rpc responses for 1559, use current feeCap and gasPremium field names
Signed-off-by: garyschulte <garyschulte@gmail.com>
* add pr number to changelog
Signed-off-by: garyschulte <garyschulte@gmail.com>
* fix transaction decoder
Signed-off-by: Gary Schulte <garyschulte@gmail.com>
* rebase and fix merge conflicts
Signed-off-by: garyschulte <garyschulte@gmail.com>
* remove null chainId from json-rpc test fixtures
Signed-off-by: garyschulte <garyschulte@gmail.com>
* the great 1559 rename
Signed-off-by: garyschulte <garyschulte@gmail.com>
* re-remove gasTarget
Signed-off-by: garyschulte <garyschulte@gmail.com>
* add serialization tests for 1559 transaction fields
Signed-off-by: garyschulte <garyschulte@gmail.com>
* add json property ordering annotations to Transaction*Result and spotless
Signed-off-by: garyschulte <garyschulte@gmail.com>
* rebase on master, update error message feedback from Karim
Signed-off-by: garyschulte <garyschulte@gmail.com>
* Permissioning: Add plugin extension point
Added plugin extension point to allow developers to write their
own implementation of `NodePermissioningProvider::isPermitted`
This will allow developers to implement their own interpretations of
things like on-chain permissioning.
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* refactor: rename NodePermissioningProvider::isPermitted
Interface will be used for other pemissioning needs
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Permissioning: added hook for NodeMessagePermissioning
All message sent to a peer will call into isMessagePermitted
if providers have been registered through the plugin api
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* AcceptanceTests: test node nodePermissioningProvider
4 node cluster with permissioning blocking a direct between two nodes
and permissioning blocking transaction messages for a single node
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: unit tests for NodePermissioningControllerFactory
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: fat finger typo
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: reduce likely hood of flakey test
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: remove comment
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: typos
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: remove jitpack references
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: tidy up EthPeerTest args
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: update plugin hash check
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* fix: improve test reliability
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* refactor: move test-plugins out from besu/main into acceptance-tests
Signed-off-by: Antony Denyer <git@antonydenyer.co.uk>
* Update Signature hash preimage
* Update json rpc to list fields for access list
* Update what is considered "raw" hash
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
Since the EIP-1559 transition is going away, simply use a set of
accepted transactions for transaction validator that we'll check
against.
Don't assume that there are two transaction types and instead check
what type the transactions are.
Use guessType when we're deserializing from json.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
This is a not-fully-functional prototype of Bonsai Tries.
Bonsai tries is a flat leaf storage, branch-by-location, and diff based reorgs
refactoring of the existing forest based trie storage mechanism aimed at
creating sustainable performance at mainnet loads.
* Since it is experimental a feature flag of --Xdata-storage-format=BONSAI
controls activation.
Some required changes have a long reach:
* To accommodate location based storage many Trie operations accept both a
location and hash value. Each data storage format is keyed off of only
one of the fields, so many tests will pass in null to the other field.
* MutableWorldStateUpdater.persist now takes an argument of a block hash.
If this is a natural progression of blocks the hash of the new block is
passed in. Otherwise null should be passed in.
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
This implements the encoding/decoding logic and because it's backwards
compatible we can introduce it immediately. You can see that some of
the typed-transaction specific encoding/decoding logic is tested where
there are EIP-1559 encoding/decoding tests but there'll be more tests
included in the EIP-2930 PR.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
Upgrade to ErrorProne 2.4.0
* public constructors on abstract classes are removed
* Javadoc must have meaningfull documentation
* lambdas should not be variables
* Added to the list of confusing inner class names (Entry and Type)
* no assert keyword in tests
* Obsolete JDK classes produce errors now
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
* add doomed key check (busy-waiting for now)
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* optional and logging
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove logging
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* sleeping and hardening
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* rename segments
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* move away from atomic references to regular vars
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove hardened segment parameter
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* increase sleep
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* spotless
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove unnecessary interface
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* rename
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* move commit waiting outside of timer
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* set default lock timeout to 1ms
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add default lock timeout to tests
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* Revert "rename segments"
This reverts commit 184eefaaa0ccc857b0caff2b382f8338ff225d5d.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* fix jmh compilation error
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add documentation
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* bump up sleep to 1ms
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* (POC) Add lock to ensure that we don't prune while comitting
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove unnecessary persist (#569)
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* flesh out @mbaxter's idea and remove my code
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* iterator changes
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* hybridize with doomed key
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* comment
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* move doomed key unset to after node added listener
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* update instead of getting and setting doomedKeyRef in commit
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* comment
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* invert condition
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove locks
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove `removeAllKeysUnless`
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* more remove removeAllKeysUnless
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* reuse streamKeys
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove test
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* set default lock timeout to 1ms
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add default lock timeout to tests
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* fix jmh compilation error
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* revert back to locks instead of doomedkey
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* change delete to not guarantee deletion
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* plugin hash
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* javadoc
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* Revert "change delete to not guarantee deletion"
This reverts commit 2289bb34cf.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* skip key deletion on timeout
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* clear in rollback
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* Revert "fix jmh compilation error"
This reverts commit b64ecf8656.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* Revert "add default lock timeout to tests"
This reverts commit aff6aa6065.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* Revert "set default lock timeout to 1ms"
This reverts commit 267fe0a642.
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* use noSlowDown write option instead of global timeout
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add back tests
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* close tryDeleteOptions
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* remove unnecessary lock
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* move increment inside try
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* use StorageException subclass instead of field
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* revert accidental deletion in javadoc
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* tryDelete javadoc
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add trace for skipping key deletion
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* merge catch and finally try blocks
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* switch from exception to boolean return value
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* tweak
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* changelog changes
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add api back
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
* add back throws javadoc
Signed-off-by: Ratan Rai Sur <ratan.r.sur@gmail.com>
Co-authored-by: Meredith Baxter <meredith.baxter@consensys.net>
Co-authored-by: MadelineMurray <43356962+MadelineMurray@users.noreply.github.com>
Introduced Security Module Plugin API. This allows to switch to a different security module provider to provide cryptographic function that can be used by NodeKey (such as sign, ECDHKeyAgreement etc.). By default register KeyPairSecurityModule otherwise attempt to load Security Module via plugin API.
CLI Options:
--security-module=<name>. (defaults to localfile)
Signed-off-by: Usman Saleem <usman@usmans.info>
* BlockAdded and BlockReorg events listed
BlockAdded and BlockReorg events included in the JavaDoc list of currently supported events for BesuEvents
Signed-off-by: grantnoble <grant.noble@consensys.net>
* Updated based on feedback from @shemnon (Danno Ferrin)
Signed-off-by: grantnoble <grant.noble@consensys.net>
* edit
Signed-off-by: Madeline <madeline.murray@consensys.net>
* edit
Signed-off-by: Madeline <madeline.murray@consensys.net>
* updating plugin api checksum
Signed-off-by: Usman Saleem <usman@usmans.info>
Co-authored-by: MadelineMurray <43356962+MadelineMurray@users.noreply.github.com>
Co-authored-by: Madeline <madeline.murray@consensys.net>
Co-authored-by: Usman Saleem <usman@usmans.info>
* Added changelog entries for PR:
- https://github.com/hyperledger/besu/pull/430
- https://github.com/hyperledger/besu/pull/440
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* ### Description
BlockHeader object needs to be modified in order to add the new field (baseFee) as specified in the EIP.
We should take care about the RLP encoding/decoding of this structure since it has to include or not the new fields depending on whether we are pre fork or post fork.
- Update `core.BlockHeader.java`
- Add `baseFee`
- Update `readFrom` method for RLP decoding
- Update `writeTo` method for RLP encoding
- Update `plugin.data.BlockHeader.java`
- Add `getBaseFee` method
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* ### Description
Transaction object needs to be modified in order to add the 2 new fields (`gasPremium` and `feeCap`) as specified in the EIP.
We should take care about the RLP encoding/decoding of this structure since it has to include or not the new fields depending on whether we are pre fork or post fork.
- Update core `Transaction` object
- Add gasPremium and feeCap fields
- Update readFrom method for RLP decoding
- Update writeTo method for RLP encoding
- Update plugin `Transaction` interface
- Add `getGasPremium` and `getFeeCap` methods
This EIP introduces gasPremium and feeCap fields in the transaction. They need to be included in the signing mechanism.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* TODO Add CLI command line flag `--Xeip1559-enabled`.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Remove TODO
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* spotless apply
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Merge step 0 and make EIP-1559 specific fields optional
Add feature flag guard for RLP encoding / decoding of transactions
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* fix error
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Address PR comments
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* update plugin api known hash
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Added changelog entries for PR:
- https://github.com/hyperledger/besu/pull/430
- https://github.com/hyperledger/besu/pull/440
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* ### Description
BlockHeader object needs to be modified in order to add the new field (baseFee) as specified in the EIP.
We should take care about the RLP encoding/decoding of this structure since it has to include or not the new fields depending on whether we are pre fork or post fork.
- Update `core.BlockHeader.java`
- Add `baseFee`
- Update `readFrom` method for RLP decoding
- Update `writeTo` method for RLP encoding
- Update `plugin.data.BlockHeader.java`
- Add `getBaseFee` method
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* TODO Add CLI command line flag `--Xeip1559-enabled`.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* TODO Add CLI command line flag `--Xeip1559-enabled`.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Added unstable annotation for getBaseFee. Moved from long to `Optional<Long>`
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Spotless apply
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* Fixed error
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* fix plugin API hash
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* RLP encoding / decoding operations are guarded with the feature flag.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
* spotless apply
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
The EthQL API spec specifies pulledStates and knownStates in the
`syncing` query. Previously we always returned null. This plumbs through
the needed data so that the synchronization states can report the
fast sync progress via EthQL, as well as the `eth_syncing` JSON-RPC.
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
* Mark Plugins Data and Events as stable
Remove the @Unstable annotations form the data and BesuEvents services.
This means that no breaking changes (like removing methods or
changing signatures) will occur without proper notice and versioning
bumps.
* tweak build check
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
Co-authored-by: Tim Beiko <t.beiko23@gmail.com>
Create plugin APIs for the block body (just transactions and ommers) and
add the block body to the block propagation listener context.
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
Removes as many Gradle 7.0 compatibility issues as possible
* `baseName` -> `archiveBaseName`
* `extension` -> `archiveExtension`
* `destinationDir` -> `destinationDirectory`
* `runtime` -> `runtimeOnly`
* Change some log4j-api and log4j-core dependencies
* Remove an unneeded and outdated plugin (`net.ltgt.apt`)
* tweak the plugin-api change detector's property annotations.
Warnings still exist with one external plugin used for license file
checking that we do not control the source code for.
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
Generally, byte[] -> Bytes of some form. Most of the changes are the
side effect of the type changes or chaning to the names of Tuweni
equivilant calls (getHexString->toHexString, etc).
UnformattedData -> Bytes
Log Topics went from Hash to Bytes32
Difficulty went to UInt256 to match core impl.
Quantity lost BinaryData and is just getValue() and toHexString()
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
* Implement a dynamic reload mechanism for Besu plugins.
- Added `reloadConfiguration` method in `plugin-api`.
- Added `admin_reloadPlugin` RPC endpoint.
- if the first parameter is specified the API will attempt to reload the individual plugin if found in the map.
- if no parameter is specified the API will attempt to reload all plugins.
- Added method in `BesuPluginContextImpl` to retrieve a map of named plugins.
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
Windows sorts files case insensitively, resulting in a different hash
for the API check because the files are in a different order.
Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
* PIE-2016: Added PoaQueryService method that returns local node signer address.
Signed-off-by: Mark Terry <mark.terry@consensys.net>
* [PIE-2016] PR fixes.
Signed-off-by: Mark Terry <mark.terry@consensys.net>
The IbftQueryService has been added to the Plugin-api, along with an implementation.
This allows IBFT specific aspects of a block header to be queried (round number, and signers in block).
Signed-off-by: Trent Mohay <trent.mohay@consensys.net>
* Add totalDiffculty to BlockPropagated events.
The chain head block can be contentious with many fork blocks (ommers) propagating on the network. We should add a totalDifficulty to make it easier to see which block is most likely the current head.
- added `BlockPropagated` interface in `plugin-api`.
- updated `BesuEvents.onBlockPropagated` method to take a `BlockPropagated` instead of a `BlockHeader`.
- created `BlockPropagatedSubscriber` in `BlockBroadcaster`.
- changed type of `BlockBroadcaster.blockPropagatedSubscribers` from `Consumer<Block>` to `BlockPropagatedSubscriber`.
- updated unit tests accordingly to all changes.
- updated known hash in `build.gradle` file of `plugin-api`: new value is `4SAeaZIJMsDvUK5Wp2RzU8TlHacslALnM/4yvVhsMtY=`
Signed-off-by: Abdelhamid Bakhta <abdelhamid.bakhta@consensys.net>
[PIE-1858] Added functionality to register custom metrics categories and exposed some PoA data for metrics.
Signed-off-by: Mark Terry <mark.terry@consensys.net>