Examples of org.apache.jackrabbit.core.data.DataStore

org.apache.jackrabbit.core.data.DataStore
Append-only store for binary streams. A data store consists of a number of identifiable data records that each contain a distinct binary stream. New binary streams can be added to the data store, but existing streams are never removed or modified.
A data store should be fully thread-safe, i.e. it should be possible to add and access data records concurrently. Optimally even separate processes should be able to concurrently access the data store with zero interprocess synchronization.

        new Random().nextBytes(data);


        DataIdentifier testDI = new DataIdentifier("test");
        DataRecord testDR = new ByteArrayDataRecord(data, testDI, "testReference");


        DataStore mockedDS = mock(DataStore.class);
        when(mockedDS.getMinRecordLength()).thenReturn(maxInlineSize);
        when(mockedDS.getRecord(testDI)).thenReturn(testDR);
        when(mockedDS.getRecordIfStored(testDI)).thenReturn(testDR);
        when(mockedDS.addRecord(any(InputStream.class))).thenReturn(testDR);
        DataStoreBlobStore ds = new DataStoreBlobStore(mockedDS);




        DataRecord dr = ds.addRecord(new ByteArrayInputStream(data));
        assertFalse(InMemoryDataRecord.isInstance(dr.getIdentifier().toString()));

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        String reference = "testReference";
        String blobId = "test";
        DataIdentifier testDI = new DataIdentifier(blobId);
        DataRecord testDR = new ByteArrayDataRecord("foo".getBytes(), testDI, reference);


        DataStore mockedDS = mock(DataStore.class);
        when(mockedDS.getRecordFromReference(reference)).thenReturn(testDR);
        when(mockedDS.getRecord(testDI)).thenReturn(testDR);
        DataStoreBlobStore ds = new DataStoreBlobStore(mockedDS);


        assertEquals(reference,ds.getReference(blobId));
        assertEquals(blobId, BlobId.of(ds.getBlobId(reference)).blobId);
        assertEquals(BlobId.of(testDR).encodedValue(),ds.getBlobId(reference));

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        DataIdentifier d10 = new DataIdentifier("d-10");
        DataIdentifier d20 = new DataIdentifier("d-20");
        DataIdentifier d30 = new DataIdentifier("d-30");
        List<DataIdentifier> dis = ImmutableList.of(d10, d20, d30);


        DataStore mockedDS = mock(DataStore.class);
        when(mockedDS.getAllIdentifiers()).thenReturn(dis.iterator());
        when(mockedDS.getRecord(new DataIdentifier("d-10"))).thenReturn(new TimeDataRecord(d10));
        when(mockedDS.getRecord(new DataIdentifier("d-20"))).thenReturn(new TimeDataRecord(d20));
        when(mockedDS.getRecord(new DataIdentifier("d-30"))).thenReturn(new TimeDataRecord(d30));
        DataStoreBlobStore ds = new DataStoreBlobStore(mockedDS);


        Iterator<String> chunks = ds.getAllChunkIds(25);
        Set<String> expected = Sets.newHashSet("d-10","d-20");
        assertEquals(expected, Sets.newHashSet(chunks));

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                    Node child = children.item(i);
                    if (child.getNodeType() == Node.ELEMENT_NODE
                            && DATA_STORE_ELEMENT.equals(child.getNodeName())) {
                        BeanConfig bc =
                            parseBeanConfig(parent, DATA_STORE_ELEMENT);
                        DataStore store = (DataStore) bc.newInstance();
                        store.init(directory);
                        return store;
                    }
                }
                return null;
            }

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            // Create item state cache manager
            context.setItemStateCacheFactory(
                    new ManagedMLRUItemStateCacheFactory(cacheMgr));


            DataStore dataStore = repConfig.getDataStore();
            if (dataStore != null) {
                context.setDataStore(dataStore);
            }


            context.setWorkspaceManager(new WorkspaceManager(this));

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            log.error("Error while closing Version Manager.", e);
        }


        repDescriptors.clear();


        DataStore dataStore = context.getDataStore();
        if (dataStore != null) {
            try {
                // close the datastore
                dataStore.close();
            } catch (DataStoreException e) {
                log.error("error while closing datastore", e);
            }
        }

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    @Test
    public void testInlineBinary() throws DataStoreException, IOException {
        int maxInlineSize = 300;


        DataStore mockedDS = mock(DataStore.class);
        when(mockedDS.getMinRecordLength()).thenReturn(maxInlineSize);
        DataStoreBlobStore ds = new DataStoreBlobStore(mockedDS);


        byte[] data = new byte[maxInlineSize];
        new Random().nextBytes(data);

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        new Random().nextBytes(data);


        DataIdentifier testDI = new DataIdentifier("test");
        DataRecord testDR = new ByteArrayDataRecord(data, testDI);


        DataStore mockedDS = mock(DataStore.class);
        when(mockedDS.getMinRecordLength()).thenReturn(maxInlineSize);
        when(mockedDS.getRecord(testDI)).thenReturn(testDR);
        when(mockedDS.getRecordIfStored(testDI)).thenReturn(testDR);
        when(mockedDS.addRecord(any(InputStream.class))).thenReturn(testDR);
        DataStoreBlobStore ds = new DataStoreBlobStore(mockedDS);




        DataRecord dr = ds.addRecord(new ByteArrayInputStream(data));
        assertFalse(InMemoryDataRecord.isInstance(dr.getIdentifier().toString()));

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    private static final String DS_PROP_PREFIX = "ds.";
    private static final String BS_PROP_PREFIX = "bs.";


    public static DataStoreBlobStore getBlobStore() throws Exception {
        String className = System.getProperty(DS_CLASS_NAME, FileDataStore.class.getName());
        DataStore ds = Class.forName(className).asSubclass(DataStore.class).newInstance();
        PropertiesUtil.populate(ds, getConfig(), false);
        ds.init(getHomeDir());
        return new DataStoreBlobStore(ds);
    }

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