QueryProcessor: Short-circuit return empty results when disabled

When visibility is enforced, it is possible for the query processor to
be disabled due to the user having a non-positive query limit
capability. Previously, calling query in this case may have unexpected
behavior, such as throwing an unchecked exception due to dividing by
zero or constructing a QueryOptions with a negative limit. Avoid
exceptions by short-circuiting and returning no results.

This new implementation means that callers need to call isDisabled to
distinguish between an empty result set and a disabled processor. Most
callers do not care about detecting this specific case and returning an
error message to the user; as a result, it would be onerous to require
them to call isDisabled in all cases. Only the callers that care
specifically need to do so, such as QueryChanges and OutputStreamQuery.

Change-Id: Ie6db9d8d67e39eb5d4676417a21fa8cd9cf830da
1 file changed
tree: 226048db0c829989a9e29ffcef1f0285e5ba2061
  1. .settings/
  2. contrib/
  3. Documentation/
  4. gerrit-acceptance-framework/
  5. gerrit-acceptance-tests/
  6. gerrit-cache-h2/
  7. gerrit-common/
  8. gerrit-elasticsearch/
  9. gerrit-extension-api/
  10. gerrit-gpg/
  11. gerrit-gwtdebug/
  12. gerrit-gwtexpui/
  13. gerrit-gwtui/
  14. gerrit-gwtui-common/
  15. gerrit-httpd/
  16. gerrit-index/
  17. gerrit-launcher/
  18. gerrit-lucene/
  19. gerrit-main/
  20. gerrit-oauth/
  21. gerrit-openid/
  22. gerrit-patch-commonsnet/
  23. gerrit-patch-jgit/
  24. gerrit-pgm/
  25. gerrit-plugin-api/
  26. gerrit-plugin-gwtui/
  27. gerrit-prettify/
  28. gerrit-reviewdb/
  29. gerrit-server/
  30. gerrit-sshd/
  31. gerrit-test-util/
  32. gerrit-util-cli/
  33. gerrit-util-http/
  34. gerrit-util-ssl/
  35. gerrit-war/
  36. lib/
  37. plugins/
  38. polygerrit-ui/
  39. ReleaseNotes/
  40. tools/
  41. website/
  42. .bazelproject
  43. .editorconfig
  44. .git-blame-ignore-revs
  45. .gitignore
  46. .gitmodules
  47. .mailmap
  48. .pydevproject
  49. BUILD
  50. COPYING
  51. INSTALL
  52. README.md
  53. SUBMITTING_PATCHES
  54. version.bzl
  55. WORKSPACE
README.md

Gerrit Code Review

Gerrit is a code review and project management tool for Git based projects.

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On Fedora run:

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Use pre-built Gerrit images on Docker

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NOTE: release is optional. Last released package of the version is installed if the release number is omitted.