Java Code Examples for org.apache.nifi.components.ValidationContext#getProperty()
The following examples show how to use
org.apache.nifi.components.ValidationContext#getProperty() .
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Example 1
| Source File: ValidateCsv.java From nifi with Apache License 2.0 | 6 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext context) {
PropertyValue schemaProp = context.getProperty(SCHEMA);
String schema = schemaProp.getValue();
String subject = SCHEMA.getName();
if (context.isExpressionLanguageSupported(subject) && context.isExpressionLanguagePresent(schema)) {
return Collections.singletonList(new ValidationResult.Builder().subject(subject).input(schema).explanation("Expression Language Present").valid(true).build());
}
// If no Expression Language is present, try parsing the schema
try {
this.parseSchema(schema);
} catch (Exception e) {
final List<ValidationResult> problems = new ArrayList<>(1);
problems.add(new ValidationResult.Builder().subject(subject)
.input(schema)
.valid(false)
.explanation("Error while parsing the schema: " + e.getMessage())
.build());
return problems;
}
return super.customValidate(context);
}
Example 2
| Source File: StandardSSLContextService.java From localization_nifi with Apache License 2.0 | 5 votes |
|
private void verifySslConfig(final ValidationContext validationContext) throws ProcessException {
final String protocol = validationContext.getProperty(SSL_ALGORITHM).getValue();
try {
final PropertyValue keyPasswdProp = validationContext.getProperty(KEY_PASSWORD);
final char[] keyPassword = keyPasswdProp.isSet() ? keyPasswdProp.getValue().toCharArray() : null;
final String keystoreFile = validationContext.getProperty(KEYSTORE).getValue();
if (keystoreFile == null) {
SslContextFactory.createTrustSslContext(
validationContext.getProperty(TRUSTSTORE).getValue(),
validationContext.getProperty(TRUSTSTORE_PASSWORD).getValue().toCharArray(),
validationContext.getProperty(TRUSTSTORE_TYPE).getValue(),
protocol);
return;
}
final String truststoreFile = validationContext.getProperty(TRUSTSTORE).getValue();
if (truststoreFile == null) {
SslContextFactory.createSslContext(
validationContext.getProperty(KEYSTORE).getValue(),
validationContext.getProperty(KEYSTORE_PASSWORD).getValue().toCharArray(),
keyPassword,
validationContext.getProperty(KEYSTORE_TYPE).getValue(),
protocol);
return;
}
SslContextFactory.createSslContext(
validationContext.getProperty(KEYSTORE).getValue(),
validationContext.getProperty(KEYSTORE_PASSWORD).getValue().toCharArray(),
keyPassword,
validationContext.getProperty(KEYSTORE_TYPE).getValue(),
validationContext.getProperty(TRUSTSTORE).getValue(),
validationContext.getProperty(TRUSTSTORE_PASSWORD).getValue().toCharArray(),
validationContext.getProperty(TRUSTSTORE_TYPE).getValue(),
org.apache.nifi.security.util.SslContextFactory.ClientAuth.REQUIRED,
protocol);
} catch (final Exception e) {
throw new ProcessException(e);
}
}
Example 3
| Source File: GenerateTableFetch.java From nifi with Apache License 2.0 | 5 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
List<ValidationResult> results = new ArrayList<>(super.customValidate(validationContext));
final PropertyValue columnForPartitioning = validationContext.getProperty(COLUMN_FOR_VALUE_PARTITIONING);
// If no EL is present, ensure it's a single column (i.e. no commas in the property value)
if (columnForPartitioning.isSet() && !columnForPartitioning.isExpressionLanguagePresent() && columnForPartitioning.getValue().contains(",")) {
results.add(new ValidationResult.Builder().valid(false).explanation(
COLUMN_FOR_VALUE_PARTITIONING.getDisplayName() + " requires a single column name, but a comma was detected").build());
}
return results;
}
Example 4
| Source File: FetchDistributedMapCache.java From nifi with Apache License 2.0 | 5 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
List<ValidationResult> results = new ArrayList<>(super.customValidate(validationContext));
PropertyValue cacheEntryIdentifier = validationContext.getProperty(PROP_CACHE_ENTRY_IDENTIFIER);
boolean elPresent = false;
try {
elPresent = cacheEntryIdentifier.isExpressionLanguagePresent();
} catch (NullPointerException npe) {
// Unfortunate workaround to a mock framework bug (NIFI-4590)
}
if (elPresent) {
// This doesn't do a full job of validating against the requirement that Put Cache Value In Attribute must be set if multiple
// Cache Entry Identifiers are supplied (if Expression Language is used). The user could conceivably have a comma-separated list of EL statements,
// or a single EL statement with commas inside it but that evaluates to a single item.
results.add(new ValidationResult.Builder().valid(true).explanation("Contains Expression Language").build());
} else {
if (!validationContext.getProperty(FetchDistributedMapCache.PROP_PUT_CACHE_VALUE_IN_ATTRIBUTE).isSet()) {
String identifierString = cacheEntryIdentifier.getValue();
if (identifierString.contains(",")) {
results.add(new ValidationResult.Builder().valid(false)
.explanation("Multiple Cache Entry Identifiers specified without Put Cache Value In Attribute set").build());
}
}
}
return results;
}
Example 5
| Source File: TransformXml.java From nifi with Apache License 2.0 | 5 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
final List<ValidationResult> results = new ArrayList<>(super.customValidate(validationContext));
PropertyValue filename = validationContext.getProperty(XSLT_FILE_NAME);
PropertyValue controller = validationContext.getProperty(XSLT_CONTROLLER);
PropertyValue key = validationContext.getProperty(XSLT_CONTROLLER_KEY);
if((filename.isSet() && controller.isSet())
|| (!filename.isSet() && !controller.isSet())) {
results.add(new ValidationResult.Builder()
.valid(false)
.subject(this.getClass().getSimpleName())
.explanation("Exactly one of the \"XSLT file name\" and \"XSLT controller\" properties must be defined.")
.build());
}
if(controller.isSet() && !key.isSet()) {
results.add(new ValidationResult.Builder()
.valid(false)
.subject(XSLT_CONTROLLER_KEY.getDisplayName())
.explanation("If using \"XSLT controller\", the XSLT controller key property must be defined.")
.build());
}
if(controller.isSet()) {
final LookupService<String> lookupService = validationContext.getProperty(XSLT_CONTROLLER).asControllerService(StringLookupService.class);
final Set<String> requiredKeys = lookupService.getRequiredKeys();
if (requiredKeys == null || requiredKeys.size() != 1) {
results.add(new ValidationResult.Builder()
.valid(false)
.subject(XSLT_CONTROLLER.getDisplayName())
.explanation("This processor requires a key-value lookup service supporting exactly one required key, was: " +
(requiredKeys == null ? "null" : String.valueOf(requiredKeys.size())))
.build());
}
}
return results;
}
Example 6
| Source File: AbstractJMSProcessor.java From nifi with Apache License 2.0 | 5 votes |
|
ConnectionFactoryConfigValidator(ValidationContext validationContext) {
this.validationContext = validationContext;
connectionFactoryServiceProperty = validationContext.getProperty(CF_SERVICE);
jndiInitialContextFactoryProperty = validationContext.getProperty(JndiJmsConnectionFactoryProperties.JNDI_INITIAL_CONTEXT_FACTORY);
jmsConnectionFactoryImplProperty = validationContext.getProperty(JMSConnectionFactoryProperties.JMS_CONNECTION_FACTORY_IMPL);
}
Example 7
| Source File: DistributeLoad.java From localization_nifi with Apache License 2.0 | 4 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
Collection<ValidationResult> results = new ArrayList<>();
if (doCustomValidate.getAndSet(false)) {
String distStrat = validationContext.getProperty(DISTRIBUTION_STRATEGY).getValue();
if (distStrat.equals(STRATEGY_LOAD_DISTRIBUTION_SERVICE)) {
// make sure Hostnames and Controller service are set
PropertyValue propDesc = validationContext.getProperty(HOSTNAMES);
if (null == propDesc || null == propDesc.getValue() || propDesc.getValue().isEmpty()) {
results.add(new ValidationResult.Builder().subject(HOSTNAMES.getName())
.explanation("Must specify Hostnames when using 'Load Distribution Strategy'").valid(false).build());
}
propDesc = validationContext.getProperty(LOAD_DISTRIBUTION_SERVICE_TEMPLATE);
if (null == propDesc || null == propDesc.getValue() || propDesc.getValue().isEmpty()) {
results.add(new ValidationResult.Builder()
.subject(LOAD_DISTRIBUTION_SERVICE_TEMPLATE.getName())
.explanation("Must specify 'Load Distribution Service ID' when using 'Load Distribution Strategy'")
.valid(false).build());
}
if (results.isEmpty()) {
int numRels = validationContext.getProperty(NUM_RELATIONSHIPS).asInteger();
String hostNamesValue = validationContext.getProperty(HOSTNAMES).getValue();
String[] hostNames = hostNamesValue.split("(?:,+|;+|\\s+)");
int numHosts = 0;
for (String hostName : hostNames) {
if (StringUtils.isNotBlank(hostName)) {
hostNames[numHosts++] = hostName;
}
}
if (numHosts > numRels) {
results.add(new ValidationResult.Builder()
.subject("Number of Relationships and Hostnames")
.explanation("Number of Relationships must be equal to, or greater than, the number of host names")
.valid(false).build());
} else {
// create new relationships with descriptions of hostname
Set<Relationship> relsWithDesc = new TreeSet<>();
for (int i = 0; i < numHosts; i++) {
relsWithDesc.add(new Relationship.Builder().name(String.valueOf(i + 1))
.description(hostNames[i]).build());
}
// add add'l rels if configuration requires it...it probably shouldn't
for (int i = numHosts + 1; i <= numRels; i++) {
relsWithDesc.add(createRelationship(i));
}
relationshipsRef.set(Collections.unmodifiableSet(relsWithDesc));
}
}
}
}
return results;
}
Example 8
| Source File: DistributeLoad.java From nifi with Apache License 2.0 | 4 votes |
|
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
Collection<ValidationResult> results = new ArrayList<>();
if (doCustomValidate.getAndSet(false)) {
String distStrat = validationContext.getProperty(DISTRIBUTION_STRATEGY).getValue();
if (distStrat.equals(STRATEGY_LOAD_DISTRIBUTION_SERVICE)) {
// make sure Hostnames and Controller service are set
PropertyValue propDesc = validationContext.getProperty(HOSTNAMES);
if (null == propDesc || null == propDesc.getValue() || propDesc.getValue().isEmpty()) {
results.add(new ValidationResult.Builder().subject(HOSTNAMES.getName())
.explanation("Must specify Hostnames when using 'Load Distribution Strategy'").valid(false).build());
}
propDesc = validationContext.getProperty(LOAD_DISTRIBUTION_SERVICE_TEMPLATE);
if (null == propDesc || null == propDesc.getValue() || propDesc.getValue().isEmpty()) {
results.add(new ValidationResult.Builder()
.subject(LOAD_DISTRIBUTION_SERVICE_TEMPLATE.getName())
.explanation("Must specify 'Load Distribution Service ID' when using 'Load Distribution Strategy'")
.valid(false).build());
}
if (results.isEmpty()) {
int numRels = validationContext.getProperty(NUM_RELATIONSHIPS).asInteger();
String hostNamesValue = validationContext.getProperty(HOSTNAMES).getValue();
String[] hostNames = hostNamesValue.split("(?:,+|;+|\\s+)");
int numHosts = 0;
for (String hostName : hostNames) {
if (StringUtils.isNotBlank(hostName)) {
hostNames[numHosts++] = hostName;
}
}
if (numHosts > numRels) {
results.add(new ValidationResult.Builder()
.subject("Number of Relationships and Hostnames")
.explanation("Number of Relationships must be equal to, or greater than, the number of host names")
.valid(false).build());
} else {
// create new relationships with descriptions of hostname
Set<Relationship> relsWithDesc = new TreeSet<>();
for (int i = 0; i < numHosts; i++) {
relsWithDesc.add(new Relationship.Builder().name(String.valueOf(i + 1))
.description(hostNames[i]).build());
}
// add add'l rels if configuration requires it...it probably shouldn't
for (int i = numHosts + 1; i <= numRels; i++) {
relsWithDesc.add(createRelationship(i));
}
relationshipsRef.set(Collections.unmodifiableSet(relsWithDesc));
}
}
}
}
return results;
}
Example 9
| Source File: StandardS3EncryptionService.java From nifi with Apache License 2.0 | 4 votes |
|
@Override
protected Collection<ValidationResult> customValidate(final ValidationContext validationContext) {
Collection<ValidationResult> validationResults = new ArrayList<>();
String encryptionStrategyName = validationContext.getProperty(ENCRYPTION_STRATEGY).getValue();
String encryptionStrategyDisplayName = ENCRYPTION_STRATEGY_ALLOWABLE_VALUES.get(encryptionStrategyName).getDisplayName();
PropertyValue encryptionValueProperty = validationContext.getProperty(ENCRYPTION_VALUE);
String encryptionValue = encryptionValueProperty.evaluateAttributeExpressions().getValue();
switch (encryptionStrategyName) {
case STRATEGY_NAME_NONE:
case STRATEGY_NAME_SSE_S3:
if (encryptionValueProperty.isSet()) {
validationResults.add(new ValidationResult.Builder()
.subject(ENCRYPTION_VALUE.getDisplayName())
.valid(false)
.explanation("the property cannot be specified for encryption strategy " + encryptionStrategyDisplayName)
.build()
);
}
break;
case STRATEGY_NAME_SSE_KMS:
case STRATEGY_NAME_CSE_KMS:
if (StringUtils.isEmpty(encryptionValue)) {
validationResults.add(new ValidationResult.Builder()
.subject(ENCRYPTION_VALUE.getDisplayName())
.valid(false)
.explanation("a non-empty Key ID must be specified for encryption strategy " + encryptionStrategyDisplayName)
.build()
);
}
break;
case STRATEGY_NAME_SSE_C:
case STRATEGY_NAME_CSE_C:
if (StringUtils.isEmpty(encryptionValue)) {
validationResults.add(new ValidationResult.Builder()
.subject(ENCRYPTION_VALUE.getDisplayName())
.valid(false)
.explanation("a non-empty Key Material must be specified for encryption strategy " + encryptionStrategyDisplayName)
.build()
);
} else {
S3EncryptionStrategy encryptionStrategy = NAMED_STRATEGIES.get(encryptionStrategyName);
String keyIdOrMaterial = validationContext.getProperty(ENCRYPTION_VALUE).evaluateAttributeExpressions().getValue();
validationResults.add(encryptionStrategy.validateKey(keyIdOrMaterial));
}
break;
}
return validationResults;
}
