Chapter 42. Minio Since Camel 3.5 Both producer and consumer are supported The Minio component supports storing and retrieving objects from/to Minio service. 42.1. Prerequisites You must have valid credentials for authorized access to the buckets/folders. More information is available at Minio . 42.2. URI Format The bucket will be created if it doesn't already exist. You can append query options to the URI in the following format, For example in order to read file hello.txt from the bucket helloBucket , use the following snippet: from("minio://helloBucket?accessKey=yourAccessKey&secretKey=yourSecretKey&prefix=hello.txt") .to("file:/var/downloaded"); 42.3. Configuring Options Camel components are configured on two separate levels: component level endpoint level 42.3.1. Configuring Component Options The component level is the highest level which holds general and common configurations that are inherited by the endpoints. For example a component may have security settings, credentials for authentication, urls for network connection and so forth. Some components only have a few options, and others may have many. Because components typically have pre configured defaults that are commonly used, then you may often only need to configure a few options on a component; or none at all. Configuring components can be done with the Component DSL , in a configuration file (application.properties|yaml), or directly with Java code. 42.3.2. Configuring Endpoint Options Where you find yourself configuring the most is on endpoints, as endpoints often have many options, which allows you to configure what you need the endpoint to do. The options are also categorized into whether the endpoint is used as consumer (from) or as a producer (to), or used for both. Configuring endpoints is most often done directly in the endpoint URI as path and query parameters. You can also use the Endpoint DSL as a type safe way of configuring endpoints. A good practice when configuring options is to use Property Placeholders , which allows to not hardcode urls, port numbers, sensitive information, and other settings. In other words placeholders allows to externalize the configuration from your code, and gives more flexibility and reuse. The following two sections lists all the options, firstly for the component followed by the endpoint. 42.4. Component Options The Minio component supports 47 options, which are listed below. Name Description Default Type autoCreateBucket (common) Setting the autocreation of the bucket if bucket name not exist. true boolean configuration (common) The component configuration. MinioConfiguration customHttpClient (common) Set custom HTTP client for authenticated access. OkHttpClient endpoint (common) Endpoint can be an URL, domain name, IPv4 address or IPv6 address. String minioClient (common) Autowired Reference to a Minio Client object in the registry. MinioClient objectLock (common) Set when creating new bucket. false boolean policy (common) The policy for this queue to set in the method. String proxyPort (common) TCP/IP port number. 80 and 443 are used as defaults for HTTP and HTTPS. Integer region (common) The region in which Minio client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1). You'll need to use the name Region.EU_WEST_1.id(). String secure (common) Flag to indicate to use secure connection to minio service or not. false boolean serverSideEncryption (common) Server-side encryption. ServerSideEncryption serverSideEncryptionCustomerKey (common) Server-side encryption for source object while copy/move objects. ServerSideEncryptionCustomerKey autoCloseBody (consumer) If this option is true and includeBody is true, then the MinioObject.close() method will be called on exchange completion. This option is strongly related to includeBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true boolean bridgeErrorHandler (consumer) Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored. false boolean bypassGovernanceMode (consumer) Set this flag if you want to bypassGovernanceMode when deleting a particular object. false boolean deleteAfterRead (consumer) Delete objects from Minio after they have been retrieved. The delete is only performed if the Exchange is committed. If a rollback occurs, the object is not deleted. If this option is false, then the same objects will be retrieve over and over again on the polls. Therefore you need to use the Idempotent Consumer EIP in the route to filter out duplicates. You can filter using the MinioConstants#BUCKET_NAME and MinioConstants#OBJECT_NAME headers, or only the MinioConstants#OBJECT_NAME header. true boolean delimiter (consumer) The delimiter which is used in the ListObjectsRequest to only consume objects we are interested in. String destinationBucketName (consumer) Source bucket name. String destinationObjectName (consumer) Source object name. String includeBody (consumer) If it is true, the exchange body will be set to a stream to the contents of the file. If false, the headers will be set with the Minio object metadata, but the body will be null. This option is strongly related to autocloseBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true boolean includeFolders (consumer) The flag which is used in the ListObjectsRequest to set include folders. false boolean includeUserMetadata (consumer) The flag which is used in the ListObjectsRequest to get objects with user meta data. false boolean includeVersions (consumer) The flag which is used in the ListObjectsRequest to get objects with versioning. false boolean length (consumer) Number of bytes of object data from offset. long matchETag (consumer) Set match ETag parameter for get object(s). String maxConnections (consumer) Set the maxConnections parameter in the minio client configuration. 60 int maxMessagesPerPoll (consumer) Gets the maximum number of messages as a limit to poll at each polling. Gets the maximum number of messages as a limit to poll at each polling. The default value is 10. Use 0 or a negative number to set it as unlimited. 10 int modifiedSince (consumer) Set modified since parameter for get object(s). ZonedDateTime moveAfterRead (consumer) Move objects from bucket to a different bucket after they have been retrieved. To accomplish the operation the destinationBucket option must be set. The copy bucket operation is only performed if the Exchange is committed. If a rollback occurs, the object is not moved. false boolean notMatchETag (consumer) Set not match ETag parameter for get object(s). String objectName (consumer) To get the object from the bucket with the given object name. String offset (consumer) Start byte position of object data. long prefix (consumer) Object name starts with prefix. String recursive (consumer) List recursively than directory structure emulation. false boolean startAfter (consumer) list objects in bucket after this object name. String unModifiedSince (consumer) Set un modified since parameter for get object(s). ZonedDateTime useVersion1 (consumer) when true, version 1 of REST API is used. false boolean versionId (consumer) Set specific version_ID of a object when deleting the object. String deleteAfterWrite (producer) Delete file object after the Minio file has been uploaded. false boolean keyName (producer) Setting the key name for an element in the bucket through endpoint parameter. String lazyStartProducer (producer) Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel's routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing. false boolean operation (producer) The operation to do in case the user don't want to do only an upload. Enum values: copyObject listObjects deleteObject deleteObjects deleteBucket listBuckets getObject getObjectRange MinioOperations pojoRequest (producer) If we want to use a POJO request as body or not. false boolean storageClass (producer) The storage class to set in the request. String autowiredEnabled (advanced) Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc. true boolean accessKey (security) Amazon AWS Secret Access Key or Minio Access Key. If not set camel will connect to service for anonymous access. String secretKey (security) Amazon AWS Access Key Id or Minio Secret Key. If not set camel will connect to service for anonymous access. String 42.5. Endpoint Options The Minio endpoint is configured using URI syntax: with the following path and query parameters: 42.5.1. Path Parameters (1 parameters) Name Description Default Type bucketName (common) Required Bucket name. String 42.5.2. Query Parameters (63 parameters) Name Description Default Type autoCreateBucket (common) Setting the autocreation of the bucket if bucket name not exist. true boolean customHttpClient (common) Set custom HTTP client for authenticated access. OkHttpClient endpoint (common) Endpoint can be an URL, domain name, IPv4 address or IPv6 address. String minioClient (common) Autowired Reference to a Minio Client object in the registry. MinioClient objectLock (common) Set when creating new bucket. false boolean policy (common) The policy for this queue to set in the method. String proxyPort (common) TCP/IP port number. 80 and 443 are used as defaults for HTTP and HTTPS. Integer region (common) The region in which Minio client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1). You'll need to use the name Region.EU_WEST_1.id(). String secure (common) Flag to indicate to use secure connection to minio service or not. false boolean serverSideEncryption (common) Server-side encryption. ServerSideEncryption serverSideEncryptionCustomerKey (common) Server-side encryption for source object while copy/move objects. ServerSideEncryptionCustomerKey autoCloseBody (consumer) If this option is true and includeBody is true, then the MinioObject.close() method will be called on exchange completion. This option is strongly related to includeBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true boolean bypassGovernanceMode (consumer) Set this flag if you want to bypassGovernanceMode when deleting a particular object. false boolean deleteAfterRead (consumer) Delete objects from Minio after they have been retrieved. The delete is only performed if the Exchange is committed. If a rollback occurs, the object is not deleted. If this option is false, then the same objects will be retrieve over and over again on the polls. Therefore you need to use the Idempotent Consumer EIP in the route to filter out duplicates. You can filter using the MinioConstants#BUCKET_NAME and MinioConstants#OBJECT_NAME headers, or only the MinioConstants#OBJECT_NAME header. true boolean delimiter (consumer) The delimiter which is used in the ListObjectsRequest to only consume objects we are interested in. String destinationBucketName (consumer) Source bucket name. String destinationObjectName (consumer) Source object name. String includeBody (consumer) If it is true, the exchange body will be set to a stream to the contents of the file. If false, the headers will be set with the Minio object metadata, but the body will be null. This option is strongly related to autocloseBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true boolean includeFolders (consumer) The flag which is used in the ListObjectsRequest to set include folders. false boolean includeUserMetadata (consumer) The flag which is used in the ListObjectsRequest to get objects with user meta data. false boolean includeVersions (consumer) The flag which is used in the ListObjectsRequest to get objects with versioning. false boolean length (consumer) Number of bytes of object data from offset. long matchETag (consumer) Set match ETag parameter for get object(s). String maxConnections (consumer) Set the maxConnections parameter in the minio client configuration. 60 int maxMessagesPerPoll (consumer) Gets the maximum number of messages as a limit to poll at each polling. Gets the maximum number of messages as a limit to poll at each polling. The default value is 10. Use 0 or a negative number to set it as unlimited. 10 int modifiedSince (consumer) Set modified since parameter for get object(s). ZonedDateTime moveAfterRead (consumer) Move objects from bucket to a different bucket after they have been retrieved. To accomplish the operation the destinationBucket option must be set. The copy bucket operation is only performed if the Exchange is committed. If a rollback occurs, the object is not moved. false boolean notMatchETag (consumer) Set not match ETag parameter for get object(s). String objectName (consumer) To get the object from the bucket with the given object name. String offset (consumer) Start byte position of object data. long prefix (consumer) Object name starts with prefix. String recursive (consumer) List recursively than directory structure emulation. false boolean sendEmptyMessageWhenIdle (consumer) If the polling consumer did not poll any files, you can enable this option to send an empty message (no body) instead. false boolean startAfter (consumer) list objects in bucket after this object name. String unModifiedSince (consumer) Set un modified since parameter for get object(s). ZonedDateTime useVersion1 (consumer) when true, version 1 of REST API is used. false boolean versionId (consumer) Set specific version_ID of a object when deleting the object. String bridgeErrorHandler (consumer (advanced)) Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored. false boolean exceptionHandler (consumer (advanced)) To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored. ExceptionHandler exchangePattern (consumer (advanced)) Sets the exchange pattern when the consumer creates an exchange. Enum values: InOnly InOut InOptionalOut ExchangePattern pollStrategy (consumer (advanced)) A pluggable org.apache.camel.PollingConsumerPollingStrategy allowing you to provide your custom implementation to control error handling usually occurred during the poll operation before an Exchange have been created and being routed in Camel. PollingConsumerPollStrategy deleteAfterWrite (producer) Delete file object after the Minio file has been uploaded. false boolean keyName (producer) Setting the key name for an element in the bucket through endpoint parameter. String operation (producer) The operation to do in case the user don't want to do only an upload. Enum values: copyObject listObjects deleteObject deleteObjects deleteBucket listBuckets getObject getObjectRange MinioOperations pojoRequest (producer) If we want to use a POJO request as body or not. false boolean storageClass (producer) The storage class to set in the request. String lazyStartProducer (producer (advanced)) Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel's routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing. false boolean backoffErrorThreshold (scheduler) The number of subsequent error polls (failed due some error) that should happen before the backoffMultipler should kick-in. int backoffIdleThreshold (scheduler) The number of subsequent idle polls that should happen before the backoffMultipler should kick-in. int backoffMultiplier (scheduler) To let the scheduled polling consumer backoff if there has been a number of subsequent idles/errors in a row. The multiplier is then the number of polls that will be skipped before the actual attempt is happening again. When this option is in use then backoffIdleThreshold and/or backoffErrorThreshold must also be configured. int delay (scheduler) Milliseconds before the poll. 500 long greedy (scheduler) If greedy is enabled, then the ScheduledPollConsumer will run immediately again, if the run polled 1 or more messages. false boolean initialDelay (scheduler) Milliseconds before the first poll starts. 1000 long repeatCount (scheduler) Specifies a maximum limit of number of fires. So if you set it to 1, the scheduler will only fire once. If you set it to 5, it will only fire five times. A value of zero or negative means fire forever. 0 long runLoggingLevel (scheduler) The consumer logs a start/complete log line when it polls. This option allows you to configure the logging level for that. Enum values: TRACE DEBUG INFO WARN ERROR OFF TRACE LoggingLevel scheduledExecutorService (scheduler) Allows for configuring a custom/shared thread pool to use for the consumer. By default each consumer has its own single threaded thread pool. ScheduledExecutorService scheduler (scheduler) To use a cron scheduler from either camel-spring or camel-quartz component. Use value spring or quartz for built in scheduler. none Object schedulerProperties (scheduler) To configure additional properties when using a custom scheduler or any of the Quartz, Spring based scheduler. Map startScheduler (scheduler) Whether the scheduler should be auto started. true boolean timeUnit (scheduler) Time unit for initialDelay and delay options. Enum values: NANOSECONDS MICROSECONDS MILLISECONDS SECONDS MINUTES HOURS DAYS MILLISECONDS TimeUnit useFixedDelay (scheduler) Controls if fixed delay or fixed rate is used. See ScheduledExecutorService in JDK for details. true boolean accessKey (security) Amazon AWS Secret Access Key or Minio Access Key. If not set camel will connect to service for anonymous access. String secretKey (security) Amazon AWS Access Key Id or Minio Secret Key. If not set camel will connect to service for anonymous access. String You have to provide the minioClient in the Registry or your accessKey and secretKey to access the Minio . 42.6. Batch Consumer This component implements the Batch Consumer. This allows you for instance to know how many messages exists in this batch and for instance let the Aggregator aggregate this number of messages. 42.7. Message Headers The Minio component supports 21 message header(s), which is/are listed below: Name Description Default Type CamelMinioBucketName (common) Constant: BUCKET_NAME Producer: The bucket Name which this object will be stored or which will be used for the current operation. Consumer: The name of the bucket in which this object is contained. String CamelMinioDestinationBucketName (producer) Constant: DESTINATION_BUCKET_NAME The bucket Destination Name which will be used for the current operation. String CamelMinioContentControl (common) Constant: CACHE_CONTROL Producer: The content control of this object. Consumer: The optional Cache-Control HTTP header which allows the user to specify caching behavior along the HTTP request/reply chain. String CamelMinioContentDisposition (common) Constant: CONTENT_DISPOSITION Producer: The content disposition of this object. Consumer: The optional Content-Disposition HTTP header, which specifies presentational information such as the recommended filename for the object to be saved as. String CamelMinioContentEncoding (common) Constant: CONTENT_ENCODING Producer: The content encoding of this object. Consumer: The optional Content-Encoding HTTP header specifying what content encodings have been applied to the object and what decoding mechanisms must be applied in order to obtain the media-type referenced by the Content-Type field. String CamelMinioContentLength (common) Constant: CONTENT_LENGTH Producer: The content length of this object. Consumer: The Content-Length HTTP header indicating the size of the associated object in bytes. Long CamelMinioContentMD5 (common) Constant: CONTENT_MD5 Producer: The md5 checksum of this object. Consumer: The base64 encoded 128-bit MD5 digest of the associated object (content - not including headers) according to RFC 1864. This data is used as a message integrity check to verify that the data received by Minio is the same data that the caller sent. String CamelMinioContentType (common) Constant: CONTENT_TYPE Producer: The content type of this object. Consumer: The Content-Type HTTP header, which indicates the type of content stored in the associated object. The value of this header is a standard MIME type. String CamelMinioETag (common) Constant: E_TAG Producer: The ETag value for the newly uploaded object. Consumer: The hex encoded 128-bit MD5 digest of the associated object according to RFC 1864. This data is used as an integrity check to verify that the data received by the caller is the same data that was sent by Minio. String CamelMinioObjectName (common) Constant: OBJECT_NAME Producer: The key under which this object will be stored or which will be used for the current operation. Consumer: The key under which this object is stored. String CamelMinioDestinationObjectName (producer) Constant: DESTINATION_OBJECT_NAME The Destination key which will be used for the current operation. String CamelMinioLastModified (common) Constant: LAST_MODIFIED Producer: The last modified timestamp of this object. Consumer: The value of the Last-Modified header, indicating the date and time at which Minio last recorded a modification to the associated object. Date CamelMinioStorageClass (producer) Constant: STORAGE_CLASS The storage class of this object. String CamelMinioVersionId (common) Constant: VERSION_ID Producer: The version Id of the object to be stored or returned from the current operation. Consumer: The version ID of the associated Minio object if available. Version IDs are only assigned to objects when an object is uploaded to an Minio bucket that has object versioning enabled. String CamelMinioCannedAcl (producer) Constant: CANNED_ACL The canned acl that will be applied to the object. see com.amazonaws.services.s3.model.CannedAccessControlList for allowed values. String CamelMinioOperation (producer) Constant: MINIO_OPERATION The operation to perform. Enum values: copyObject listObjects deleteObject deleteObjects deleteBucket listBuckets getObject getPartialObject MinioOperations CamelMinioServerSideEncryption (common) Constant: SERVER_SIDE_ENCRYPTION Producer: Sets the server-side encryption algorithm when encrypting the object using Minio-managed keys. For example use AES256. Consumer: The server-side encryption algorithm when encrypting the object using Minio-managed keys. String CamelMinioExpirationTime (common) Constant: EXPIRATION_TIME The expiration time. String CamelMinioReplicationStatus (common) Constant: REPLICATION_STATUS The replication status. String CamelMinioOffset (producer) Constant: OFFSET The offset. String CamelMinioLength (producer) Constant: LENGTH The length. String 42.7.1. Minio Producer operations Camel-Minio component provides the following operation on the producer side: copyObject deleteObject deleteObjects listBuckets deleteBucket listObjects getObject (this will return a MinioObject instance) getObjectRange (this will return a MinioObject instance) 42.7.2. Advanced Minio configuration If your Camel Application is running behind a firewall or if you need to have more control over the MinioClient instance configuration, you can create your own instance and refer to it in your Camel minio component configuration: from("minio://MyBucket?minioClient=#client&delay=5000&maxMessagesPerPoll=5") .to("mock:result"); 42.7.3. Minio Producer Operation examples CopyObject: this operation copy an object from one bucket to a different one from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.DESTINATION_BUCKET_NAME, "camelDestinationBucket"); exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); exchange.getIn().setHeader(MinioConstants.DESTINATION_OBJECT_NAME, "camelDestinationKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=copyObject") .to("mock:result"); This operation will copy the object with the name expressed in the header camelDestinationKey to the camelDestinationBucket bucket, from the bucket mycamelbucket. DeleteObject: this operation deletes an object from a bucket from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=deleteObject") .to("mock:result"); This operation will delete the object camelKey from the bucket mycamelbucket. ListBuckets: this operation list the buckets for this account in this region from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=listBuckets") .to("mock:result"); This operation will list the buckets for this account DeleteBucket: this operation delete the bucket specified as URI parameter or header from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=deleteBucket") .to("mock:result"); This operation will delete the bucket mycamelbucket ListObjects: this operation list object in a specific bucket from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=listObjects") .to("mock:result"); This operation will list the objects in the mycamelbucket bucket GetObject: this operation get a single object in a specific bucket from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=getObject") .to("mock:result"); This operation will return an MinioObject instance related to the camelKey object in mycamelbucket bucket. GetObjectRange: this operation get a single object range in a specific bucket from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); exchange.getIn().setHeader(MinioConstants.OFFSET, "0"); exchange.getIn().setHeader(MinioConstants.LENGTH, "9"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=getObjectRange") .to("mock:result"); This operation will return an MinioObject instance related to the camelKey object in mycamelbucket bucket, containing bytes from 0 to 9. 42.8. Bucket Autocreation With the option autoCreateBucket users are able to avoid the autocreation of a Minio Bucket in case it doesn't exist. The default for this option is true . If set to false any operation on a not-existent bucket in Minio won't be successful, and an error will be returned. 42.9. Automatic detection of Minio client in registry The component is capable of detecting the presence of a Minio bean into the registry. If it's the only instance of that type it will be used as client, and you won't have to define it as uri parameter, like the example above. This may be really useful for smarter configuration of the endpoint. 42.10. Moving stuff between a bucket and another bucket Some users like to consume stuff from a bucket and move the content in a different one without using the copyObject feature of this component. If this is case for you, don't forget to remove the bucketName header from the incoming exchange of the consumer, otherwise the file will always be overwritten on the same original bucket. 42.11. MoveAfterRead consumer option In addition to deleteAfterRead it has been added another option, moveAfterRead. With this option enabled the consumed object will be moved to a target destinationBucket instead of being only deleted. This will require specifying the destinationBucket option. As example: from("minio://mycamelbucket?minioClient=#minioClient&moveAfterRead=true&destinationBucketName=myothercamelbucket") .to("mock:result"); In this case the objects consumed will be moved to myothercamelbucket bucket and deleted from the original one (because of deleteAfterRead set to true as default). 42.12. Using a POJO as body Sometimes build a Minio Request can be complex, because of multiple options. We introduce the possibility to use a POJO as body. In Minio there are multiple operations you can submit, as an example for List brokers request, you can do something like: from("direct:minio") .setBody(ListObjectsArgs.builder() .bucket(bucketName) .recursive(getConfiguration().isRecursive()))) .to("minio://test?minioClient=#minioClient&operation=listObjects&pojoRequest=true") In this way you'll pass the request directly without the need of passing headers and options specifically related to this operation. 42.13. Dependencies Maven users will need to add the following dependency to their pom.xml. pom.xml <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-minio</artifactId> <version>USD{camel-version}</version> </dependency> where USD3.18.3 must be replaced by the actual version of Camel. 42.14. Spring Boot Auto-Configuration When using minio with Spring Boot make sure to use the following Maven dependency to have support for auto configuration: <dependency> <groupId>org.apache.camel.springboot</groupId> <artifactId>camel-minio-starter</artifactId> </dependency> The component supports 48 options, which are listed below. Name Description Default Type camel.component.minio.access-key Amazon AWS Secret Access Key or Minio Access Key. If not set camel will connect to service for anonymous access. String camel.component.minio.auto-close-body If this option is true and includeBody is true, then the MinioObject.close() method will be called on exchange completion. This option is strongly related to includeBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true Boolean camel.component.minio.auto-create-bucket Setting the autocreation of the bucket if bucket name not exist. true Boolean camel.component.minio.autowired-enabled Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc. true Boolean camel.component.minio.bridge-error-handler Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored. false Boolean camel.component.minio.bypass-governance-mode Set this flag if you want to bypassGovernanceMode when deleting a particular object. false Boolean camel.component.minio.configuration The component configuration. The option is a org.apache.camel.component.minio.MinioConfiguration type. MinioConfiguration camel.component.minio.custom-http-client Set custom HTTP client for authenticated access. The option is a okhttp3.OkHttpClient type. OkHttpClient camel.component.minio.delete-after-read Delete objects from Minio after they have been retrieved. The delete is only performed if the Exchange is committed. If a rollback occurs, the object is not deleted. If this option is false, then the same objects will be retrieve over and over again on the polls. Therefore you need to use the Idempotent Consumer EIP in the route to filter out duplicates. You can filter using the MinioConstants#BUCKET_NAME and MinioConstants#OBJECT_NAME headers, or only the MinioConstants#OBJECT_NAME header. true Boolean camel.component.minio.delete-after-write Delete file object after the Minio file has been uploaded. false Boolean camel.component.minio.delimiter The delimiter which is used in the ListObjectsRequest to only consume objects we are interested in. String camel.component.minio.destination-bucket-name Source bucket name. String camel.component.minio.destination-object-name Source object name. String camel.component.minio.enabled Whether to enable auto configuration of the minio component. This is enabled by default. Boolean camel.component.minio.endpoint Endpoint can be an URL, domain name, IPv4 address or IPv6 address. String camel.component.minio.include-body If it is true, the exchange body will be set to a stream to the contents of the file. If false, the headers will be set with the Minio object metadata, but the body will be null. This option is strongly related to autocloseBody option. In case of setting includeBody to true and autocloseBody to false, it will be up to the caller to close the MinioObject stream. Setting autocloseBody to true, will close the MinioObject stream automatically. true Boolean camel.component.minio.include-folders The flag which is used in the ListObjectsRequest to set include folders. false Boolean camel.component.minio.include-user-metadata The flag which is used in the ListObjectsRequest to get objects with user meta data. false Boolean camel.component.minio.include-versions The flag which is used in the ListObjectsRequest to get objects with versioning. false Boolean camel.component.minio.key-name Setting the key name for an element in the bucket through endpoint parameter. String camel.component.minio.lazy-start-producer Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel's routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing. false Boolean camel.component.minio.length Number of bytes of object data from offset. Long camel.component.minio.match-e-tag Set match ETag parameter for get object(s). String camel.component.minio.max-connections Set the maxConnections parameter in the minio client configuration. 60 Integer camel.component.minio.max-messages-per-poll Gets the maximum number of messages as a limit to poll at each polling. Gets the maximum number of messages as a limit to poll at each polling. The default value is 10. Use 0 or a negative number to set it as unlimited. 10 Integer camel.component.minio.minio-client Reference to a Minio Client object in the registry. The option is a io.minio.MinioClient type. MinioClient camel.component.minio.modified-since Set modified since parameter for get object(s). The option is a java.time.ZonedDateTime type. ZonedDateTime camel.component.minio.move-after-read Move objects from bucket to a different bucket after they have been retrieved. To accomplish the operation the destinationBucket option must be set. The copy bucket operation is only performed if the Exchange is committed. If a rollback occurs, the object is not moved. false Boolean camel.component.minio.not-match-e-tag Set not match ETag parameter for get object(s). String camel.component.minio.object-lock Set when creating new bucket. false Boolean camel.component.minio.object-name To get the object from the bucket with the given object name. String camel.component.minio.offset Start byte position of object data. Long camel.component.minio.operation The operation to do in case the user don't want to do only an upload. MinioOperations camel.component.minio.pojo-request If we want to use a POJO request as body or not. false Boolean camel.component.minio.policy The policy for this queue to set in the method. String camel.component.minio.prefix Object name starts with prefix. String camel.component.minio.proxy-port TCP/IP port number. 80 and 443 are used as defaults for HTTP and HTTPS. Integer camel.component.minio.recursive List recursively than directory structure emulation. false Boolean camel.component.minio.region The region in which Minio client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1). You'll need to use the name Region.EU_WEST_1.id(). String camel.component.minio.secret-key Amazon AWS Access Key Id or Minio Secret Key. If not set camel will connect to service for anonymous access. String camel.component.minio.secure Flag to indicate to use secure connection to minio service or not. false Boolean camel.component.minio.server-side-encryption Server-side encryption. The option is a io.minio.ServerSideEncryption type. ServerSideEncryption camel.component.minio.server-side-encryption-customer-key Server-side encryption for source object while copy/move objects. The option is a io.minio.ServerSideEncryptionCustomerKey type. ServerSideEncryptionCustomerKey camel.component.minio.start-after list objects in bucket after this object name. String camel.component.minio.storage-class The storage class to set in the request. String camel.component.minio.un-modified-since Set un modified since parameter for get object(s). The option is a java.time.ZonedDateTime type. ZonedDateTime camel.component.minio.use-version1 when true, version 1 of REST API is used. false Boolean camel.component.minio.version-id Set specific version_ID of a object when deleting the object. String

Commands:
minio://bucketName[?options]
?options=value&option2=value&...
from("minio://helloBucket?accessKey=yourAccessKey&secretKey=yourSecretKey&prefix=hello.txt") .to("file:/var/downloaded");
minio:bucketName
from("minio://MyBucket?minioClient=#client&delay=5000&maxMessagesPerPoll=5") .to("mock:result");
from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.DESTINATION_BUCKET_NAME, "camelDestinationBucket"); exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); exchange.getIn().setHeader(MinioConstants.DESTINATION_OBJECT_NAME, "camelDestinationKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=copyObject") .to("mock:result");
from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=deleteObject") .to("mock:result");
from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=listBuckets") .to("mock:result");
from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=deleteBucket") .to("mock:result");
from("direct:start") .to("minio://mycamelbucket?minioClient=#minioClient&operation=listObjects") .to("mock:result");
from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=getObject") .to("mock:result");
from("direct:start").process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "camelKey"); exchange.getIn().setHeader(MinioConstants.OFFSET, "0"); exchange.getIn().setHeader(MinioConstants.LENGTH, "9"); } }) .to("minio://mycamelbucket?minioClient=#minioClient&operation=getObjectRange") .to("mock:result");
from("minio://mycamelbucket?minioClient=#minioClient&moveAfterRead=true&destinationBucketName=myothercamelbucket") .to("mock:result");
from("direct:minio") .setBody(ListObjectsArgs.builder() .bucket(bucketName) .recursive(getConfiguration().isRecursive()))) .to("minio://test?minioClient=#minioClient&operation=listObjects&pojoRequest=true")
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-minio</artifactId> <version>USD{camel-version}</version> </dependency>
<dependency> <groupId>org.apache.camel.springboot</groupId> <artifactId>camel-minio-starter</artifactId> </dependency>