* Revert "Revert "XdsClient: add unit test and fix watcher notification bugs (#30823)" (#30942)"
This reverts commit 6d2c4a8314.
* use GRPC_CUSTOM_JSONUTIL macro for JsonPrintOptions
This adds a unit test for XdsClient and fixes several watcher-notification bugs found in the process. Specifically:
- When an ADS stream fails or an xDS channel reports a connectivity failure, report an error only to the watchers for resources being subscribed to on that particular channel, not to watchers on other channels.
- Cache the error status for the channel, so that if a new watcher is started after the channel reports the error, we can immediately report that error to the new watcher.
- If a resource is NACKed and has not been previously cached, or does not exist, report that fact to any new watcher that may be started later.
- If a resource in an ADS response is unparseable but is wrapped in a `Resource` wrapper, we do know its name, so record the validation failure in the cache and report it to the watchers.
Co-authored-by: markdroth <markdroth@users.noreply.github.com>
* Move XdsChannelCreds to CoreConfiguration
* move xDS channel creds files to src/core/lib/security/credentials/xds
* Change back to returning a RefCountedPtr.
* make remove "xds_" from xds_channel_* files.
* Renamed to address comments.
* clang fix
* Fix another clang error
This patch introduces a factory to allow supporting custom xDS channel
creds. Three types currently supported (fake, insecure, google_default)
are registered by default for backward-compatibility.
* ChannelStackModifier class
* Regenerate projects
* clang-tidy
* Use CoreConfiguration for inserting xDS HTTP filters
* New lines
* Move test to test/core/xds
* Add comment for placement of filter stack
* Fix sanity
* Fix memory leak - destroy builder
* Don't build xds_channel_stack_modifier_test on non-bazel build systems due to census dependency
The source code is moved from src/python to
src/python/src. A setup.py is added at
src/python. The build_python.sh and
run_python.sh scripts are updated to build
and run the Python tests by building a
package and installing it in the developer's
Python 2.7 virtual environment.