SOLR-17697: Implement picocli for assert, cluster, config, api, export, postlogs, run_example, post, stream and the snapshot-* commands - #4931
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CLIUtils.resolveSolrUrl/resolveSolrConnection resolve a picocli tool's ConnectionOptions (--solr-url/--solr-connection/--zk-host) the same way CLIUtils.normalizeSolrUrl(CommandLine)/getSolrConnection(CommandLine) do for the commons-cli path, so each newly-converted tool does not need to re-implement that resolution itself.
Reuses the existing ConnectionOptions/CredentialsOptions mixins. post-tool.adoc/stream-tool.adoc's rename is a separate, unrelated ticket; this only wires the already-split PostToolParams into picocli fields. Verified against a live Solr instance across all three connection forms (--solr-url, --solr-connection, --zk-host) and the no-connection default, matching the commons-cli path's output byte for byte, including its stderr fallback warning.
Mirrors CLIUtils.getSolrConnection(CommandLine)'s cluster-probe fallback locally, since StreamTool (unlike most tools) needs both a resolved CloudSolrClientConnection for local-mode streaming and a plain Solr URL for remote mode. Verified live across --solr-url, --solr-connection, --zk-host and the no-connection default, in both --execution local and remote, matching the commons-cli path's output and stderr warnings.
Four ArgGroups (root/not-root, started/not-started, exists/not-exists, cloud/not-cloud) replicate the commons-cli OptionGroups' mutual exclusivity. callTool() inlines the same try/catch as the commons-cli path's runTool() override, since AssertTool is the one tool that maps a failed assertion to exit code 100 rather than ToolBase's default of 1.
Uses the new CLIUtils.resolveSolrConnection helper; healthcheck only works in cloud mode, so a null resolution still prints the same error and exits 1 as the commons-cli path.
This tool only ever exposed --zk-host (not the full connection group), so its own resolveZkHost() mirrors CLIUtils.getZkHost(CommandLine) directly rather than reusing ConnectionOptions. Verified live: writes to ZooKeeper's /clusterprops.json exactly as the commons-cli path does.
--value drops its "-v" short form: that letter is already ToolBase's --verbose, and the two silently collide in the commons-cli path today (VALUE_OPTION is added after VERBOSE_OPTION, so -v currently means --value there, not --verbose); picocli refuses the duplicate outright. Verified live against a real Solr instance, including the "value is required unless the action is unset-*" validation.
Verified live: same GenericSolrRequest/JsonMapResponseParser path, same output, against a real Solr instance.
The connection group is required (ArgGroup multiplicity "1"): the commons-cli path throws IllegalArgumentException when no connection target is given, so this makes picocli enforce the same requirement declaratively instead.
Same mandatory-connection-group treatment as ExportTool. Verified live against a real log file; a pre-existing LogRecordReader parsing quirk on certain QTime lines (NPE on a null params string) reproduces identically on both parsers, confirming it predates this conversion.
--port keeps no explicit defaultValue: its paramLabel "port" matches CliDefaultValueProvider's <port> case (solr.port.listen sysprop / SOLR_PORT_LISTEN env var, else 8983), and --zk-host's paramLabel "zkHost" does the same for the <zkHost> case, mirroring the commons-cli path's fallbacks without duplicating them.
snapshot-create, snapshot-delete, snapshot-describe, snapshot-export and snapshot-list, bundled as one commit since they share the same shape (collection name + optional snapshot name + connection group) and are one cohesive unit of the CLI's snapshot lifecycle. snapshot-export keeps accepting --snapshot-name only to reject it with the same explanation as the commons-cli path (removed non-incremental backup format). Verified the full lifecycle live: create, list, describe, delete.
Wires PostTool, StreamTool, AssertTool, HealthcheckTool, ClusterTool, ConfigTool, ApiTool, ExportTool, PostLogsTool, RunExampleTool and the five snapshot-* tools into SolrCLI's @command(subcommands = ...), the one file every tool conversion in this batch shares.
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https://issues.apache.org/jira/browse/SOLR-17697
@janhoy @dsmiley @epugh
Converts 11 of the remaining unconverted tools to picocli:
assert,cluster,config,api,export,postlogs,run_example(bin/solr start -e),post,stream, and the fivesnapshot-*commands (snapshot-create,snapshot-delete,snapshot-describe,snapshot-export,snapshot-list).PackageToolis intentionally left out - #4739 is already open for it.Each tool reuses the existing
ConnectionOptions/CredentialsOptions/ZkConnectionOptionsmixins where applicable. Two new shared helpers were added toCLIUtils(resolveSolrUrl/resolveSolrConnection) so tools needing the commons-cli path'snormalizeSolrUrl(CommandLine)/getSolrConnection(CommandLine)cluster-probe behavior don't each reimplement it.Two small, unavoidable divergences from the commons-cli path, both because picocli enforces at construction time what commons-cli only silently shadows:
ConfigTool --valuedrops its-vshort form.-vis alreadyToolBase's--verbose, and the commons-cli path already has them colliding (VALUE_OPTIONis registered afterVERBOSE_OPTION, so-vcurrently resolves to--value, not--verbose); picocli refuses the duplicate outright.ExportTool/PostLogsTool's connection group is declaredmultiplicity = "1"(mandatory) instead of manually throwingIllegalArgumentExceptionwhen absent, since both already require a connection unconditionally.Verified:
./gradlew :solr:core:test --tests "org.apache.solr.cli.*"- 152 tests, 2 skipped, all green.--helpstarts cleanly underSolrCLIPicocliTest.testEveryCommandSupportsHelp.SOLR_PICOCLI=true, across all three connection forms plus the no-connection default:config(set/unset + validation),api(GET),cluster(ZK write, confirmed viazk cp), the fullsnapshot-*lifecycle (create, list, describe, delete, plus export's--snapshot-namerejection),assert(both outcomes, exit code 100, mutual exclusion),postlogs(including a pre-existingLogRecordReaderparsing quirk that reproduces identically on both parsers).AI-assisted (Claude Sonnet 5).