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https://issues.apache.org/jira/browse/BEAM-5420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16629346#comment-16629346
]
Kevin Si commented on BEAM-5420:
--------------------------------
Or we use the following method to get display data from runtime parameters. The
point is it shouldn't call the get() method.
/** Create a display item for the specified key and \{@link ValueProvider}. */
public static ItemSpec<?> item(String key, @Nullable ValueProvider<?> value) {
if (value == null) {
return item(key, Type.STRING, null);
}
if (value.isAccessible()) {
Object got = value.get();
if (got == null) {
return item(key, Type.STRING, null);
}
Type type = inferType(got);
if (type != null) {
return item(key, type, got);
}
}
// General case: not null and type not inferable. Fall back to toString of the
VP itself.
return item(key, Type.STRING, String.valueOf(value));
}
> BigtableIO tries to get runtime parameters when collecting display data at
> pipeline construction time
> -----------------------------------------------------------------------------------------------------
>
> Key: BEAM-5420
> URL: https://issues.apache.org/jira/browse/BEAM-5420
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Reporter: Kevin Si
> Assignee: Chamikara Jayalath
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> For example:
> [https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigtable/BigtableConfig.java#L165]
> At Dataflow pipeline construction time calling getProjectId() gives an error.
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