Re: [Exist-development] Storing XML generated by org.exist.memtree.MemTreeBuilder into an XmldbURI using a given DBBroker.

[Loren C. <lor...@gm...>]

Here is the solution that I was able to create thanks to the pointers.  I do need to change this to create the document as a specific user instead of the system user.


import org.apache.log4j.Logger;
import org.exist.collections.Collection;
import org.exist.collections.IndexInfo;
import org.exist.memtree.DocumentImpl;
import org.exist.memtree.MemTreeBuilder;
import org.exist.security.*;
import org.exist.security.SecurityManager;
import org.exist.security.xacml.AccessContext;
import org.exist.storage.BrokerPool;
import org.exist.storage.DBBroker;
import org.exist.storage.lock.Lock;
import org.exist.storage.txn.TransactionManager;
import org.exist.storage.txn.Txn;
import org.exist.xmldb.XmldbURI;


        String identity = (String) stringMap.get(IDENTITY_RECORD_PARAMETER);
        LOG.info("Identity: " + identity);
        String documentCollection = identity.substring(0, identity.lastIndexOf(".xml"));
        LOG.info("Collection: " + documentCollection);

        DBBroker broker = null;
        TransactionManager transact = brokerPool.getTransactionManager();
        Txn txn = transact.beginTransaction();

        try {
            IndexInfo info = null;
            SecurityManager securityManager = brokerPool.getSecurityManager();
            Subject systemSubject = securityManager.getSystemSubject();
            LOG.info("SystemSubject: " + systemSubject.getName() + " : " + systemSubject.toString());

            broker = brokerPool.get(systemSubject);

            if (broker == null) {
                LOG.error("No system subject");
                return;
            }

            if (!isValidStatus(identity, broker))
                return;

            DocumentImpl document = createDocument(brokerPool);
            LOG.info("node = " + document);

            if (document == null) {
                LOG.info("Failure to create document");
                return;
            }
            Collection collection = null;
            try {
                XmldbURI collectionURI = XmldbURI.xmldbUriFor(documentCollection);
                XmldbURI docURI = XmldbURI.xmldbUriFor(documentCollection + "/mydoc.xml");
                collection = broker.openCollection(collectionURI, Lock.WRITE_LOCK);
                LOG.info("collection: " + collection);
                if (collection == null) {
                    transact.abort(txn);
                    return;
                }
                info = collection.validateXMLResource(txn, broker, docURI, document);
            } finally {
                if (collection != null)
                    collection.release(Lock.WRITE_LOCK);
            }
            collection.store(txn, broker, info, document, false);
            transact.commit(txn);

        } catch (Exception e) {
            LOG.error("Failure to create document", e);
            return;
        } finally {
            brokerPool.release(broker);
        }












On Feb 23, 2011, at 1:41 PM, Adam Retter wrote:

> On 23 February 2011 20:34, Adam Retter <ad...@ex...> wrote:
>> You should be able to use code similar to that in the xmldb:store function...
> 
> But dont use the XMLDB stuff itself, look at the underlying
> implementation e.g.
> org.exist.xmldb.LocalCollection::storeXMLResource(...) is a good place
> to start. It basically shows you how to call
> org.exist.collections.Collection::validateXMLResource(...) and
> org.exist.collections.Collection::store(...)
> When using the Internal API though please be very careful with your
> transactions and locks.
> 
>> On 23 February 2011 18:57, Loren Cahlander <lor...@gm...> wrote:
>>> Hello folks,
>>> 
>>> It has been a while since I was doing some Java work on eXist.  I am working a JavaJob the generates an XML document through org.exist.memtree.MemTreeBuilder.  I have a DBBroker and an XmldbURI for the collection and the document where I wish to store the XML document.
>>> 
>>> Is there an existing API that is simple for me to use to do this?
>>> 
>>> Cheers,
>>> Loren
>>> 
>>> 
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>> 
>> 
>> 
>> --
>> Adam Retter
>> 
>> eXist Developer
>> { United Kingdom }
>> ad...@ex...
>> irc://irc.freenode.net/existdb
>> 
> 
> 
> 
> -- 
> Adam Retter
> 
> eXist Developer
> { United Kingdom }
> ad...@ex...
> irc://irc.freenode.net/existdb