Package org.geotools.data

Examples of org.geotools.data.FeatureLocking


                LockRequest.Lock curLock = (LockRequest.Lock) i.next();

                String curTypeName = curLock.getFeatureType();

                FeatureTypeInfo meta = catalog.getFeatureTypeInfo(curTypeName);
                FeatureLocking source = (FeatureLocking) meta.getFeatureSource();

                Transaction t = new DefaultTransaction();

                try {
                    t.addAuthorization(featureLock.getAuthorization());
                    source.getDataStore().getLockingManager().release(featureLock
                        .getAuthorization(), t);
                } finally {
                    t.close();
                }
            }


                    }

                    if ((request.getLockId() != null)
                            && store instanceof FeatureLocking
                            && (request.getReleaseAction() == TransactionRequest.SOME)) {
                        FeatureLocking locking = (FeatureLocking) store;

                        // TODO: Revisit Lock/Delete interaction in gt2
                        if (false) {
                            // REVISIT: This is bad - by releasing locks before
                            // we remove features we open ourselves up to the danger
                            // of someone else locking the features we are about to
                            // remove.
                            //
                            // We cannot do it the other way round, as the Features will
                            // not exist
                            //
                            // We cannot grab the fids offline using AUTO_COMMIT
                            // because we may have removed some of them earlier in the
                            // transaction
                            //
                            locking.unLockFeatures(filter);
                            store.removeFeatures(filter);
                        } else {
                            // This a bit better and what should be done, we will
                            // need to rework the gt2 locking api to work with
                            // fids or something
                            //
                            // The only other thing that would work would be
                            // to specify that FeatureLocking is required to
                            // remove locks when removing Features.
                            //
                            // While that sounds like a good idea, it would be
                            // extra work when doing release mode ALL.
                            //
                            DataStore data = store.getDataStore();
                            FilterFactory factory = FilterFactory
                                .createFilterFactory();
                            FeatureWriter writer;                           
                            writer = data.getFeatureWriter(typeName, filter,
                                    transaction);

                            try {
                                while (writer.hasNext()) {
                                    String fid = writer.next().getID();
                                    locking.unLockFeatures(factory
                                        .createFidFilter(fid));
                                    writer.remove();
                                }
                            } finally {
                                writer.close();
                            }

                            store.removeFeatures(filter);
                        }
                    } else {
                        // We don't have to worry about locking right now
                        //
                        store.removeFeatures(filter);
                    }

                    envelope.expandToInclude(damaged);
                } catch (IOException ioException) {
                    throw new WfsTransactionException(ioException.getMessage(),
                        element.getHandle(), request.getHandle());
                }
            }

            if (element instanceof InsertRequest) {
                if ((request.getWFS().getServiceLevel() & WFSDTO.SERVICE_INSERT) == 0) {
                    // could we catch this during the handler, rather than during execution?
                    throw new ServiceException(
                        "Transaction INSERT support is not enabled");
                }
                LOGGER.finer( "Transasction Insert:"+element );
                try {
                    InsertRequest insert = (InsertRequest) element;
                    FeatureCollection collection = insert.getFeatures();

                    FeatureReader reader = DataUtilities.reader(collection);
                    FeatureType schema = store.getSchema();

                    // Need to use the namespace here for the lookup, due to our weird
                    // prefixed internal typenames.  see
                    //   http://jira.codehaus.org/secure/ViewIssue.jspa?key=GEOS-143
                   
                    // Once we get our datastores making features with the correct namespaces
                    // we can do something like this:
                    // FeatureTypeInfo typeInfo = catalog.getFeatureTypeInfo(schema.getTypeName(), schema.getNamespace());
                    // until then (when geos-144 is resolved) we're stuck with:
                    FeatureTypeInfo typeInfo = catalog.getFeatureTypeInfo(element.getTypeName() );

                    // this is possible with the insert hack above.
                    LOGGER.finer("Use featureValidation to check contents of insert" );
                    featureValidation( typeInfo.getDataStoreInfo().getId(), schema, collection );

                    Set fids = store.addFeatures(reader);
                    build.addInsertResult(element.getHandle(), fids);

                    //
                    // Add to validation check envelope                               
                    envelope.expandToInclude(collection.getBounds());
                } catch (IOException ioException) {
                    throw new WfsTransactionException(ioException,
                        element.getHandle(), request.getHandle());
                }
            }

            if (element instanceof UpdateRequest) {
                if ((request.getWFS().getServiceLevel() & WFSDTO.SERVICE_UPDATE) == 0) {
                    // could we catch this during the handler, rather than during execution?
                    throw new ServiceException(
                        "Transaction Update support is not enabled");
                }
                LOGGER.finer( "Transaction Update:"+element);
                try {
                    UpdateRequest update = (UpdateRequest) element;
                    Filter filter = update.getFilter();

                    AttributeType[] types = update.getTypes(store.getSchema());
                    Object[] values = update.getValues();

                    DefaultQuery query = new DefaultQuery(update.getTypeName(),
                            filter);

                    // Pass through data to collect fids and damaged region
                    // for validation
                    //
                    Set fids = new HashSet();
                    LOGGER.finer("Preprocess to remember modification as a set of fids" );                   
                    FeatureReader preprocess = store.getFeatures( filter ).reader();
                    try {
                        while( preprocess.hasNext() ){
                            Feature feature = preprocess.next();
                            fids.add( feature.getID() );
                            envelope.expandToInclude( feature.getBounds() );
                        }
                    } catch (NoSuchElementException e) {
                        throw new ServiceException( "Could not aquire FeatureIDs", e );
                    } catch (IllegalAttributeException e) {
                        throw new ServiceException( "Could not aquire FeatureIDs", e );
                    }
                    finally {
                        preprocess.close();
                    }
                   
                    try{
                      if (types.length == 1) {
                          store.modifyFeatures(types[0], values[0], filter);
                      } else {
                          store.modifyFeatures(types, values, filter);
                      }
                }catch (IOException e//DJB: this is for cite tests.  We should probaby do this for all the exceptions here - throw a transaction FAIL instead of serice exception 
        {
                  //this failed - we want a FAILED not a service exception!
                  build = new WfsTransResponse(WfsTransResponse.FAILED,
                            transactionRequest.getGeoServer().isVerbose());
                   // add in exception details here??
                      build.setMessage(e.getLocalizedMessage());
                  response = build;
                  // DJB: it looks like the transaction is rolled back in writeTo()
                  return;
          }                   
                    if ((request.getLockId() != null)
                            && store instanceof FeatureLocking
                            && (request.getReleaseAction() == TransactionRequest.SOME)) {
                        FeatureLocking locking = (FeatureLocking) store;
                        locking.unLockFeatures(filter);
                    }
                   
                    // Post process - check features for changed boundary and
                    // pass them off to the ValidationProcessor
                    //

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Related Classes of org.geotools.data.FeatureLocking

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