AWS CodeArtifact ValidationExceptionReason: Explained and Examples
CodeArtifact is an AWS service that allows developers to securely store and manage software packages. It provides a fully managed artifact repository for storing and sharing packages within an organization or across organizations. While using CodeArtifact, developers might come across the com.amazonaws.services.codeartifact.model.ValidationExceptionReason class. This article will delve into the details of this class, its purpose, and provide examples to help understand its usage.
Understanding ValidationExceptionReason
The com.amazonaws.services.codeartifact.model.ValidationExceptionReason class is part of the AWS CodeArtifact SDK for Java. It represents the reason behind a validation exception when performing operations with CodeArtifact. A validation exception occurs when the input provided during an operation is invalid or doesn’t meet the requirements defined by CodeArtifact.
When a validation exception occurs, the ValidationExceptionReason can be used to identify the specific reason behind the exception. This can be helpful in troubleshooting and fixing the issue.
Common ValidationExceptionReason Values
The ValidationExceptionReason class provides several values that can be used to determine the specific reason for the validation exception. Some of the commonly used values are:
CANNOT_PARSE: This reason indicates that the input couldn’t be parsed correctly. It may be due to incorrect formatting or an incompatible data type. For example, if a timestamp field is provided as a string instead of a valid ISO 8601 format, theCANNOT_PARSEreason might be triggered.FIELD_VALUE_NOT_ALLOWED: This reason implies that the value provided for a specific field is not permitted according to CodeArtifact’s rules and constraints. For example, if an invalid value is provided for thepackageTypefield, such as a value other thannpmormaven, theFIELD_VALUE_NOT_ALLOWEDreason could be triggered.INVALID_OPERATION_ON_RESOURCE_TYPE: This reason suggests that an operation is being performed on a resource that doesn’t support it. For instance, if an “update” operation is attempted on a repository that only allows “read” operations, theINVALID_OPERATION_ON_RESOURCE_TYPEreason might be indicated.MISSING_REQUIRED_PARAMETER: This reason is triggered when a required parameter is missing from the input. CodeArtifact has certain mandatory fields, and if any of them are absent, theMISSING_REQUIRED_PARAMETERreason will be raised.
Usage Examples
To better understand the Practical implementation of the ValidationExceptionReason class, let’s take a look at some usage examples. These examples demonstrate how this class can be helpful in identifying and handling specific validation exception reasons.
Example 1: CANNOT_PARSE
In this example, let’s assume we are trying to create a new package version in CodeArtifact and accidentally provide an invalid timestamp as the release date. The following code snippet showcases how to handle the VALIDATION_EXCEPTION exception and identify the CANNOT_PARSE reason:
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import com.amazonaws.services.codeartifact.AWSCodeArtifact;
import com.amazonaws.services.codeartifact.model.*;
public class CreatePackageVersionExample {
public static void main(String[] args) {
final String repositoryName = "my-repository";
final String packageFormat = "npm";
final String packageName = "my-package";
final String packageVersion = "1.0.0";
final String invalidReleaseDate = "2021-13-35"; // Invalid date format: month and day exceeding valid range
AWSCodeArtifact codeArtifact = AWSCodeArtifactClientBuilder.defaultClient();
try {
codeArtifact.createPackageVersion(new CreatePackageVersionRequest()
.withRepository(repositoryName)
.withFormat(packageFormat)
.withNamespace(packageName)
.withPackage(packageName)
.withVersion(packageVersion)
.withReleaseDate(invalidReleaseDate));
} catch (ValidationException ex) {
if (ex.getReason() == ValidationExceptionReason.CANNOT_PARSE) {
System.out.println("Invalid release date format");
} else {
System.out.println("Other validation exception occurred: " + ex.getMessage());
}
}
}
}
In this example, if the release date provided in invalidReleaseDate doesn’t follow the correct format, a ValidationException with the reason CANNOT_PARSE will be thrown.
Example 2: FIELD_VALUE_NOT_ALLOWED
Consider a scenario where we want to add a new package to a CodeArtifact repository, but mistakenly provide an unsupported package type. The following code snippet demonstrates how to handle the VALIDATION_EXCEPTION exception and identify the FIELD_VALUE_NOT_ALLOWED reason:
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import com.amazonaws.services.codeartifact.AWSCodeArtifact;
import com.amazonaws.services.codeartifact.model.*;
public class CreatePackageExample {
public static void main(String[] args) {
final String repositoryName = "my-repository";
final String invalidPackageType = "invalid"; // Unsupported package type
AWSCodeArtifact codeArtifact = AWSCodeArtifactClientBuilder.defaultClient();
try {
codeArtifact.createPackage(new CreatePackageRequest()
.withRepository(repositoryName)
.withPackageFormat(invalidPackageType));
} catch (ValidationException ex) {
if (ex.getReason() == ValidationExceptionReason.FIELD_VALUE_NOT_ALLOWED) {
System.out.println("Invalid package type");
} else {
System.out.println("Other validation exception occurred: " + ex.getMessage());
}
}
}
}
If an unsupported package type is provided in invalidPackageType, a ValidationException with the reason FIELD_VALUE_NOT_ALLOWED will be raised.
Example 3: MISSING_REQUIRED_PARAMETER
Let’s consider a situation where we are trying to create a new repository in CodeArtifact but forget to provide the mandatory parameter repositoryName. Here’s an example of how to handle the VALIDATION_EXCEPTION exception and identify the MISSING_REQUIRED_PARAMETER reason:
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import com.amazonaws.services.codeartifact.AWSCodeArtifact;
import com.amazonaws.services.codeartifact.model.*;
public class CreateRepositoryExample {
public static void main(String[] args) {
final String missingRepositoryName = null; // Missing repository name
AWSCodeArtifact codeArtifact = AWSCodeArtifactClientBuilder.defaultClient();
try {
codeArtifact.createRepository(new CreateRepositoryRequest()
.withRepositoryName(missingRepositoryName));
} catch (ValidationException ex) {
if (ex.getReason() == ValidationExceptionReason.MISSING_REQUIRED_PARAMETER) {
System.out.println("Missing repository name");
} else {
System.out.println("Other validation exception occurred: " + ex.getMessage());
}
}
}
}
If the repositoryName parameter is not provided or set to null, a ValidationException with the reason MISSING_REQUIRED_PARAMETER will be thrown.
Conclusion
In this article, we explored the com.amazonaws.services.codeartifact.model.ValidationExceptionReason class, which is an integral part of the AWS CodeArtifact SDK for Java. We learned about its purpose and how it helps in identifying specific reasons for validation exceptions in AWS CodeArtifact operations. Additionally, we examined some common reasons like CANNOT_PARSE, FIELD_VALUE_NOT_ALLOWED, and MISSING_REQUIRED_PARAMETER. By utilizing these ValidationExceptionReason values within our code, we can handle exceptions more effectively and troubleshoot issues efficiently.
For more information about AWS CodeArtifact and the ValidationExceptionReason class, please refer to the official AWS documentation:
Keep exploring and coding!