Examples of MemoryDataStore

org.geotools.data.memory.MemoryDataStore
This is an example implementation of a DataStore used for testing.
It serves as an example implementation of:
- FeatureListenerManager use: allows handling of FeatureEvents
This class will also illustrate the use of In-Process locking when the time comes.
@author jgarnett @source $URL$
org.jf.dexlib2.writer.io.MemoryDataStore

Examples of org.geotools.data.memory.MemoryDataStore


    FeatureTypeMapping mapping;


    @Before
    public void setUp() throws Exception {
        MemoryDataStore ds = createWaterSampleTestFeatures();
        targetType = TestData.createComplexWaterSampleType();
        FeatureTypeFactory tf = new UniqueNameFeatureTypeFactoryImpl();
        AttributeDescriptor targetFeature = tf.createAttributeDescriptor(targetType, targetType
                .getName(), 0, Integer.MAX_VALUE, true, null);
        targetName = targetFeature.getName();
        List mappings = TestData.createMappingsColumnsAndValues(targetFeature);


        Name sourceName = TestData.WATERSAMPLE_TYPENAME;
        FeatureSource<SimpleFeatureType, SimpleFeature> source = ds.getFeatureSource(sourceName);


        // empty nssupport as the sample types have no namespace defined
        NamespaceSupport namespaces = new NamespaceSupport();
        mapping = new FeatureTypeMapping(source, targetFeature, mappings, namespaces);

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Examples of org.geotools.data.memory.MemoryDataStore

     * </tr>
     * </table>
     * </p>
     */
    public static MemoryDataStore createWaterSampleTestFeatures() throws Exception {
        MemoryDataStore dataStore = new MemoryDataStore();
        SimpleFeatureTypeBuilder tb = new SimpleFeatureTypeBuilder();


        tb.setName(TestData.WATERSAMPLE_TYPENAME.getLocalPart());
        tb.add("watersampleid", String.class);
        tb.add("ph", Integer.class);
        tb.add("temp", Integer.class);
        tb.add("turbidity", Float.class);


        SimpleFeatureType type = tb.buildFeatureType();


        dataStore.createSchema(type);


        final int NUM_FEATURES = 10;


        SimpleFeatureBuilder fbuilder = new SimpleFeatureBuilder(type);
        for (int i = 0; i < NUM_FEATURES; i++) {
            String fid = type.getName().getLocalPart() + "." + i;


            fbuilder.add("watersample." + i);
            fbuilder.add(new Integer(i));
            fbuilder.add(new Integer(10 + i));
            fbuilder.add(new Float(i));


            SimpleFeature f = fbuilder.buildFeature(fid);
            dataStore.addFeature(f);
        }
        return dataStore;
    }

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Examples of org.geotools.data.memory.MemoryDataStore

                        "A long label\nwith newlines" }, null);
        SimpleFeature f3 = SimpleFeatureBuilder.build(type,
                new Object[] { gf.createPoint(new Coordinate(5, 2)),
                        "A long label with (parenthesis)" }, null);
        
        MemoryDataStore data = new MemoryDataStore();
        data.addFeature(f1);
        data.addFeature(f2);
        data.addFeature(f3);
        fs = data.getFeatureSource("labelWrap");
        
    }

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Examples of org.geotools.data.memory.MemoryDataStore


        
        GeometryFactory geomFac=new GeometryFactory();
    CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;


        MemoryDataStore data = new MemoryDataStore();
        data.addFeature(createPointFeature(2,2,"LongLabel1",crs, geomFac, types));
        data.addFeature(createPointFeature(4,4,"LongLabel2",crs, geomFac, types));
        data.addFeature(createPointFeature(0,4,"LongLabel3",crs, geomFac, types));
//        data.addFeature(createPointFeature(2,0,"Label4",crs, geomFac, types));
        data.addFeature(createPointFeature(2,6,"LongLabel6",crs, geomFac, types));


        return data.getFeatureSource(Rendering2DTest.POINT).getFeatures();
  }

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Examples of org.geotools.data.memory.MemoryDataStore


        
        GeometryFactory geomFac=new GeometryFactory();
    CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;


        MemoryDataStore data = new MemoryDataStore();
        data.addFeature(createLineFeature(10,0,0,10,"LongLabel1",crs, geomFac, types));
        data.addFeature(createLineFeature(10,10,0,0,"LongLabel2",crs, geomFac, types));
//        data.addFeature(createPointFeature(0,2,"LongLabel3",crs, geomFac, types));
//        data.addFeature(createPointFeature(2,0,"Label4",crs, geomFac, types));
//        data.addFeature(createPointFeature(0,4,"LongLabel6",crs, geomFac, types));


        return data.getFeatureSource(Rendering2DTest.LINE).getFeatures();
  }

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Examples of org.geotools.data.memory.MemoryDataStore


  private SimpleFeatureCollection createPolyFeatureCollection() throws Exception {
        GeometryFactory geomFac=new GeometryFactory();
    CoordinateReferenceSystem crs=DefaultGeographicCRS.WGS84;


        MemoryDataStore data = new MemoryDataStore();
        data.addFeature(createPolyFeature(CENTERX+5,CENTERY+0,CENTERX+10,CENTERY+10,"LongLabel1",crs, geomFac));
        data.addFeature(createPolyFeature(CENTERX+0,CENTERY+0,CENTERX+10,CENTERY+10,"LongLabel2",crs, geomFac));


        return data.getFeatureSource(Rendering2DTest.POLYGON).getFeatures();
  }

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Examples of org.geotools.data.memory.MemoryDataStore

            //to a feature collection; but I don't know a better way.
            
            // now that we have a feature collection we need to wrap it
            // in a datastore so we can apply the query to it.
            // in this case we'll use a memory data store
            MemoryDataStore md = new MemoryDataStore();


            //add the features
            //we are using an array because 
            //making a memory data store from a feature collection results
            //in a null pointer exception
            ArrayList<SimpleFeature> features = new ArrayList<SimpleFeature>();
            SimpleFeatureIterator it = fc.features();
            try{
                for( ; it.hasNext(); ) {
                    SimpleFeature type = (SimpleFeature) it.next();
                    features.add(type);
                }
            }finally{
                it.close();
            }
            md.addFeatures(features.toArray(new SimpleFeature[features.size()]));


            //convert back to a feature collection with the query applied
            FeatureReader<SimpleFeatureType, SimpleFeature> fr = md.getFeatureReader(query, Transaction.AUTO_COMMIT);
            SimpleFeatureCollection fc1 = new DefaultFeatureCollection("cachedfeaturecollection", (SimpleFeatureType) fr.getFeatureType());
            while( fr.hasNext() ) {
                fc1.add(fr.next());
            }
            fr.close();

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Examples of org.geotools.data.memory.MemoryDataStore

                    .createDataStore(url);


            String typeName = ds.getSchema().getTypeName();
            REPOSITORY.register("dsStreams", ds);


            MemoryDataStore dsStreams_5 = createMemStoreVertical(ds.getSchema(), "dsStreams_5",
                    "streams_5");
            MemoryDataStore dsStreams_10 = createMemStoreVertical(ds.getSchema(), "dsStreams_10",
                    "streams_10");
            MemoryDataStore dsStreams_20 = createMemStoreVertical(ds.getSchema(), "dsStreams_20",
                    "streams_20");
            MemoryDataStore dsStreams_50 = createMemStoreVertical(ds.getSchema(), "dsStreams_50",
                    "streams_50");


            MemoryDataStore dsStreams_5_10 = createMemStoreMixed(ds.getSchema(), "dsStreams_5_10",
                    "streams_5_10");
            MemoryDataStore dsStreams_20_50 = createMemStoreMixed(ds.getSchema(),
                    "dsStreams_20_50", "streams_20_50");


            MemoryDataStore dsStreams_5_10_20_50 = createMemStoreHorizontal(ds.getSchema(),
                    "dsStreams_5_10_20_50", "streams_5_10_20_50");


            // StreamsFeatureSource = ds.getFeatureSource(typeName);
            Transaction t = new DefaultTransaction();
            Query query = new Query(typeName, Filter.INCLUDE);

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Examples of org.geotools.data.memory.MemoryDataStore

        initialized = true;
    }


    private static MemoryDataStore createMemStoreVertical(SimpleFeatureType typ, String name,
            String fname) throws IOException {
        MemoryDataStore memDS = new MemoryDataStore();


        List<AttributeDescriptor> attrs = new ArrayList<AttributeDescriptor>();
        attrs.addAll(typ.getAttributeDescriptors());


        SimpleFeatureTypeImpl sft = new SimpleFeatureTypeImpl(new NameImpl(fname), attrs, typ
                .getGeometryDescriptor(), typ.isAbstract(), typ.getRestrictions(), typ.getSuper(),
                typ.getDescription());


        memDS.createSchema(sft);
        REPOSITORY.register(name, memDS);
        return memDS;
    }

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Examples of org.geotools.data.memory.MemoryDataStore

        return memDS;
    }


    private static MemoryDataStore createMemStoreMixed(SimpleFeatureType typ, String name,
            String fname) throws IOException {
        MemoryDataStore memDS = new MemoryDataStore();
        List<AttributeDescriptor> attrs = new ArrayList<AttributeDescriptor>();
        attrs.addAll(typ.getAttributeDescriptors());
        GeometryDescriptorImpl geom2Descr = new GeometryDescriptorImpl(typ.getGeometryDescriptor()
                .getType(), new NameImpl("the_geom2"), typ.getGeometryDescriptor().getMinOccurs(),
                typ.getGeometryDescriptor().getMaxOccurs(), typ.getGeometryDescriptor()
                        .isNillable(), typ.getGeometryDescriptor().getDefaultValue());
        attrs.add(geom2Descr);
        SimpleFeatureTypeImpl sft = new SimpleFeatureTypeImpl(new NameImpl(fname), attrs, typ
                .getGeometryDescriptor(), typ.isAbstract(), typ.getRestrictions(), typ.getSuper(),
                typ.getDescription());


        memDS.createSchema(sft);
        REPOSITORY.register(name, memDS);
        return memDS;
    }

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