I am trying to integrate a simple Enterprise App to a data source(xml file for now) using Apache Service Mix(ASM) ESB. Basically I need to have the ESB pick up content from the xml file and populate corresponding tables in a H2 database(which my app is linked to). I am not sure as to which features of ASM I should be using for the same. If someone could give me a high level idea as to how I should be going about the same I would be very grateful. I have looked at documentation from Fuse ESB and also the ASM documentation but at this point I am totally confused.
Thanks in advance.
Since ServiceMix uses Camel for such work, my first suggestion is to take a look at Apache Camel for it.
For you're example a simple route would look like this:
from("file:location_of_file").unmarshal(registered-jaxB-structure)
.split(simple("probably_your_entities")).to("jdbc:dataSource?sql_insert");
You read your incoming file from the *location_of_file* unmarshall it since it's a XML file to your object-structure with jaxb. After that you probably need to iterate over the entities inside your xml file which is best be done with a split. Now your structure is most likely in a way you can use either for storing with jpa, sql or jdbc.
Related
Does anyone know hot to use Apache AVRO RPC with Spring boot? Every single AVRO implementation I have seen is hosted on a netty server.
You might be trying to achieve the same thing I'm trying to achieve -- speeding up json serialization with spring boot and spring web. Or maybe you just want to use avro? And my comment is a little late, since it's months after you posted. I have run across this information about using an avro message converter, so thought I would share it with you to see if it helps:
https://docs.spring.io/spring-cloud-stream/docs/Brooklyn.RELEASE/reference/html/contenttypemanagement.html#_schema_based_message_converters
Or did you already find it? If so, can you share whatever solution that you came up with? Our rest json serialization takes much longer than the whole rest of the operation and I would like to speed it up as much as possible.
Searched over the net but unable to find the satisfying approach.
I am new to spring boot and aware of starter dependancies,
I want to develop a springboot app using elastic search as a storage system.
Wherever i searched i found that somewhere my service class will have to implement some interface from springframework for ES crud operations.
Is there any other way without implementing or extending the components.
I myself want to create transport client and want to query ES by my code or methods not by overidden ones.
Please if you ahve ever seen any projects you can redirect me to that link .
Thanks.
Assuming I understand you correctly, you can use the Elasticsearch REST client: https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-low.html
You supply the JSON entities for the queries and parse the responses yourself. Its pretty basic in what it does, so you're not dependent on a lot of third party stuff to perform operations.
We are trying to develop a framework on top of spring batch, basically it has to read the data from database like fields, fields order, file location..etc..
Is there any existing frameworks to achieve this, otherwise please shed some light on this...
Thanks,
MK
I don't think there is any such extension available over the framework. You might have to write your own customizations to achieve a database driven configuration for Spring Batch.
What do you want Spring Batch to read in? Have you looked at ItemReaders? http://docs.spring.io/spring-batch/trunk/reference/html/readersAndWriters.html
In your ItemReader constructor you can read in whatever configuration you require.
And see:
Reading Records From a Database in Spring Batch
Using spring data neo4j in liferay portlets, Neo4j is locking itself when a portlet is using it, encounter exception like below
Unable to lock store [db.name], this is usually a result of some other Neo4j kernel running using the same store
Is there any way to run multiple portlets with same embedded neo4j db. Can i use Neo4j HA? Looks like Neo4j HA to going to deal with multi-servers, but i only one server. Any ideas?
Thanks in advance!
Did you try including neo4j library files at portal level instead of using at portlet level ?
i.e. to place required .jar files in /lib/ext instead of inside WEB-INF of every portlet.
I'm not an expert in neo4j, but having good experience with liferay. Suggesting above solution from liferay point to ensure common place for all portlets.
Does anybody has an experience with Spring Integration project as embedded ESB?
I'm highly interesting in such use cases as:
Reading files from directory on schedule basis
Getting data from JDBC data source
Modularity and possibility to start/stop/redeploy module on the fly (e.g. one module can scan directory on schedule basis, another call query from jdbc data source etc.)
repeat/retry policy
UPDATE:
I found answers on all my questions except "Getting data from JDBC data source". Is it technically possible?
Remember, "ESB" is just a marketing term designed to sell more expensive software, it's not a magic bullet. You need to consider the specific jobs you need your software to do, and pick accordingly. If Spring Integration seems to fit the bill, I wouldn't be too concerned if it doesn't look much like an uber-expensive server installation.
The Spring Integration JDBC adapters are available in 2.0, and we just released GA last week. Here's the relevant section from the reference manual: http://static.springsource.org/spring-integration/docs/latest-ga/reference/htmlsingle/#jdbc
This link describes the FileSucker with Spring Integration. Read up on your Enterprise Integration patterns for more info I think.
I kinda think you need to do a bit more investigation your self, or do a couple of tries on some of your usecases. Then we can discuss whats good and bad
JDBC Adapters appear to be a work in progress.
Even if there is no specific adapter available, remember that Spring Integration is a thin wrapper around POJOs. You'll be able to access JDBC in any component e.g. your service activators.
See here for a solution based on a polling inbound channel adapter too.