Examples of org.lilyproject.repository.api.Blob

org.lilyproject.repository.api.Blob
A Blob is a {@link ValueType value type} that can be used to store arbitrarily large binary data.Besides the binary data itself, a blob holds some metadata such as the media-type and size.
Storing and retrieving data to and from the blob happens through {@link java.io.OutputStream} and{@link java.io.InputStream}.
These streams are available via the Repository through {@link Repository#getOutputStream(Blob)} and{@link Repository#getInputStream(Blob)}.
Important: to add a blob to a record, you first need to upload the data via the OutputStream. Once finished, close the OutputStream using {@link java.io.OutputStream#close()}. This will trigger the update of the {@link #setValue value} of this blob object (which will usually be a pointer to the storage locationof the blob, though for tiny blobs -- sorry for the oxymoron -- this might be the binary data itself). Once that's done, you can store the {@link Record} itself. Thus: first upload all blobs and close theirOutputStreams, then save the record. It does not matter when the blob value is set on the record object itself.

        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[3000];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");
        Record record = repository.newRecord();
        record.setRecordType(recordType.getName());
        record.setField(fieldName, blob);
        record = repository.create(record);

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        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = new byte[size];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testUpdateMutableMultivalueHierarchyBlob");


        byte[] bytes2 = new byte[size];
        random.nextBytes(bytes);
        Blob blob2 = writeBlob(bytes2, "aMediaType", "testUpdateMutableMultivalueHierarchyBlob2");


        byte[] bytes3 = new byte[size];
        random.nextBytes(bytes3);
        Blob blob3 = writeBlob(bytes3, "aMediaType", "testUpdateMutableMultivalueHierarchyBlob3");


        byte[] bytes4 = new byte[size];
        random.nextBytes(bytes4);
        Blob blob4 = writeBlob(bytes4, "aMediaType", "testUpdateMutableMultivalueHierarchyBlob4");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName(), null);
        record.setField(fieldName, Arrays.asList(new HierarchyPath(blob, blob2), new HierarchyPath(blob3)));
        record = repository.create(record);

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        recordType = typeManager.createRecordType(recordType);


        // Incubate blob but never use it
        byte[] bytes = new byte[3000];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");


        // Give time for the blob to expire
        Thread.sleep(60);


        BlobIncubatorMonitor monitor = new BlobIncubatorMonitor(repoSetup.getZk(), repoSetup.getHbaseTableFactory(),

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        recordType = typeManager.createRecordType(recordType);


        // This is the failure scenario where creating the record fails after reserving the blob
        byte[] bytes = new byte[3000];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");
        IdGeneratorImpl idGeneratorImpl = new IdGeneratorImpl();
        RecordId recordId = idGeneratorImpl.newRecordId();
        BlobReference blobReference = new BlobReference(blob, recordId, fieldType);
        Set<BlobReference> blobs = new HashSet<BlobReference>();
        blobs.add(blobReference);

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        recordType = typeManager.createRecordType(recordType);


        // This is the failure scenario where creating the record fails after reserving the blob
        byte[] bytes = new byte[3000];
        random.nextBytes(bytes);
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");
        IdGeneratorImpl idGeneratorImpl = new IdGeneratorImpl();
        RecordId recordId = idGeneratorImpl.newRecordId();
        BlobReference blobReference = new BlobReference(blob, recordId, fieldType);
        Set<BlobReference> blobs = new HashSet<BlobReference>();
        blobs.add(blobReference);
        repository.newRecord();
        Record record = repository.newRecord();
        record.setRecordType(recordType.getName());
        record.setField(fieldName, blob);
        record = repository.create(record);


        // Faking failure
        HTableInterface blobIncubatorTable = LilyHBaseSchema.getBlobIncubatorTable(repoSetup.getHbaseTableFactory(), true);
        Put put = new Put(blob.getValue());
        put.add(LilyHBaseSchema.BlobIncubatorCf.REF.bytes, LilyHBaseSchema.BlobIncubatorColumn.RECORD.bytes, record.getId().toBytes());
        put.add(LilyHBaseSchema.BlobIncubatorCf.REF.bytes, LilyHBaseSchema.BlobIncubatorColumn.FIELD.bytes, fieldType.getId().getBytes());
        blobIncubatorTable.put(put);


        // Give time for the blob to expire
        Thread.sleep(60);


        BlobIncubatorMonitor monitor = new BlobIncubatorMonitor(repoSetup.getZk(), repoSetup.getHbaseTableFactory(),
                                            repoSetup.getTableManager(), blobManager, typeManager, 50, 0, 0);
        monitor.runMonitorOnce();


        assertBlobDelete(false, blob);
        Get get = new Get(blob.getValue());
        Result result = blobIncubatorTable.get(get);
        assertTrue(result == null || result.isEmpty());
    }

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        }
    }


    @Test
    public void testBadEncoding() throws Exception {
        Blob blob = new Blob("aMediaType", (long) 10, "aName");
        blob.setValue(new byte[0]);
        try {
            testBlobStoreAccessRegistry.getBlobAccess(blob).getInputStream();
            fail();
        } catch (BlobException expected) {
        }

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     * @param length The blob site to be used when constructing the blob
     * (this can be used to control how the blob will be stored)
     */
    private Blob writeBlob(byte[] bytes, String mediaType, String name, long length) throws RepositoryException, InterruptedException,
 IOException {
        Blob blob = new Blob(mediaType, length, name);
        OutputStream outputStream = repository.getOutputStream(blob);
        outputStream.write(bytes);
        outputStream.close();
        return blob;
    }

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        FieldTypeEntry fieldTypeEntry = typeManager.newFieldTypeEntry(fieldType.getId(), true);
        recordType.addFieldTypeEntry(fieldTypeEntry);
        recordType = typeManager.createRecordType(recordType);


        byte[] bytes = Bytes.toBytes("someBytes");
        Blob blob = writeBlob(bytes, "aMediaType", "testCreate");
        Record record = repository.newRecord();
        record.setRecordType(recordType.getName());
        record.setField(fieldName, blob);
        record = repository.create(record);

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        byte[] medium = new byte[100];
        random.nextBytes(medium);
        byte[] large = new byte[2048];
        random.nextBytes(large);


        Blob smallBlob = writeBlob(small, "mime/small", "small");
        Blob mediumBlob = writeBlob(medium, "mime/medium", "medium");
        Blob largeBlob = writeBlob(large, "mime/large", "large");


        Record record = repository.newRecord();
        record.setRecordType(recordType.getName());
        record.setField(fieldName1, smallBlob);
        record.setField(fieldName2, mediumBlob);

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        Random rg = new Random();
        byte[] bytes = new byte[size];
        rg.nextBytes(bytes);


        // create BLOB object
        Blob blob = new Blob("application/pdf", 0L, "Document");
        // create a stream to write the BLOB
        OutputStream bos = repository.getOutputStream(blob);
        // write the data
        bos.write(bytes);
        bos.close();
        blob.setSize(5L);
        // create a new record ID
        RecordId rid = repository.getIdGenerator().newRecordId();
        // create a new record
        Record record = repository.newRecord(rid);
        record.setRecordType(new QName(namespace, "testForceInlineRT"));

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