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Dagger, meet Flows. Flows, meet Dagger.

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Daggerizes all of the EPP flows. This does not change anything yet
about the flows themselves, just how they are invoked, but after
this CL it's safe to @Inject things into flow classes.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=125382478
This commit is contained in:
cgoldfeder 2016-06-20 14:51:42 -07:00 • committed by Ben McIlwain
parent 116bf1f4d6
commit c9a16f7f11
69 changed files with 973 additions and 292 deletions
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85
java/google/registry/flows/EppController.java
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@ -15,12 +15,11 @@
package google.registry.flows;
import static google.registry.flows.EppXmlTransformer.unmarshal;
import static google.registry.flows.picker.FlowPicker.getFlowClass;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import google.registry.flows.FlowModule.EppExceptionInProviderException;
import google.registry.model.eppcommon.Trid;
import google.registry.model.eppinput.EppInput;
import google.registry.model.eppoutput.EppOutput;
@ -43,6 +42,7 @@ public final class EppController {
private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
@Inject Clock clock;
@Inject FlowComponent.Builder flowComponentBuilder;
@Inject EppMetrics metrics;
@Inject EppController() {}
@ -54,57 +54,62 @@ public final class EppController {
boolean isDryRun,
boolean isSuperuser,
byte[] inputXmlBytes) {
Trid trid = null;
metrics.setClientId(sessionMetadata.getClientId());
metrics.setPrivilegeLevel(isSuperuser ? "SUPERUSER" : "NORMAL");
try {
EppInput eppInput = unmarshal(EppInput.class, inputXmlBytes);
trid = Trid.create(eppInput.getCommandWrapper().getClTrid());
ImmutableList<String> targetIds = eppInput.getTargetIds();
EppInput eppInput;
try {
eppInput = unmarshal(EppInput.class, inputXmlBytes);
} catch (EppException e) {
// Send the client an error message, with no clTRID since we couldn't unmarshal it.
metrics.setEppStatus(e.getResult().getCode());
return getErrorResponse(clock, e.getResult(), Trid.create(null));
}
metrics.setCommandName(eppInput.getCommandName());
metrics.setClientId(sessionMetadata.getClientId());
metrics.setPrivilegeLevel(isSuperuser ? "SUPERUSER" : "NORMAL");
if (!targetIds.isEmpty()) {
metrics.setEppTarget(Joiner.on(",").join(targetIds));
if (!eppInput.getTargetIds().isEmpty()) {
metrics.setEppTarget(Joiner.on(',').join(eppInput.getTargetIds()));
}
FlowRunner flowRunner = new FlowRunner(
getFlowClass(eppInput),
eppInput,
trid,
sessionMetadata,
credentials,
eppRequestSource,
isDryRun,
isSuperuser,
inputXmlBytes,
metrics,
clock);
EppOutput eppOutput = flowRunner.run();
if (eppOutput.isResponse()) {
metrics.setEppStatus(eppOutput.getResponse().getResult().getCode());
EppOutput output = runFlowConvertEppErrors(flowComponentBuilder
.flowModule(new FlowModule.Builder()
.setSessionMetadata(sessionMetadata)
.setCredentials(credentials)
.setEppRequestSource(eppRequestSource)
.setIsDryRun(isDryRun)
.setIsSuperuser(isSuperuser)
.setInputXmlBytes(inputXmlBytes)
.setEppInput(eppInput)
.build())
.build());
if (output.isResponse()) {
metrics.setEppStatus(output.getResponse().getResult().getCode());
}
return eppOutput;
} catch (EppException e) {
// The command failed. Send the client an error message.
metrics.setEppStatus(e.getResult().getCode());
return getErrorResponse(clock, e.getResult(), trid);
} catch (Throwable e) {
// Something bad and unexpected happened. Send the client a generic error, and log it.
logger.severe(e, "Unexpected failure");
metrics.setEppStatus(Code.CommandFailed);
return getErrorResponse(clock, Result.create(Code.CommandFailed), trid);
return output;
} finally {
metrics.export();
}
}
/** Create a response indicating an Epp failure. */
/** Run an EPP flow and convert known exceptions into EPP error responses. */
private EppOutput runFlowConvertEppErrors(FlowComponent flowComponent) {
try {
return flowComponent.flowRunner().run();
} catch (EppException | EppExceptionInProviderException e) {
// The command failed. Send the client an error message.
EppException eppEx = (EppException) (e instanceof EppException ? e : e.getCause());
return getErrorResponse(clock, eppEx.getResult(), flowComponent.trid());
} catch (Throwable e) {
// Something bad and unexpected happened. Send the client a generic error, and log it.
logger.severe(e, "Unexpected failure");
return getErrorResponse(clock, Result.create(Code.CommandFailed), flowComponent.trid());
}
}
/** Create a response indicating an EPP failure. */
@VisibleForTesting
static EppOutput getErrorResponse(Clock clock, Result result, Trid trid) {
// Create TRID (without a clTRID) if one hasn't been created yet, as it's necessary to construct
// a valid response. This can happen if the error occurred before we could even parse out the
// clTRID (e.g. if a syntax error occurred parsing the supplied XML).
return EppOutput.create(new EppResponse.Builder()
.setTrid(trid == null ? Trid.create(null) : trid)
.setResult(result)
.setTrid(trid)
.setExecutionTime(clock.nowUtc())
.build());
}