Package org.apache.avro

Examples of org.apache.avro.Schema$BytesSchema

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  /** Called to read a map instance.  May be overridden for alternate map
   * representations.*/
  protected Object readMap(Object old, Schema expected,
      ResolvingDecoder in) throws IOException {
    Schema eValue = expected.getValueType();
    long l = in.readMapStart();
    Object map = newMap(old, (int) l);
    if (l > 0) {
      do {
        for (int i = 0; i < l; i++) {
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      break;
    case ENUM:
      in.readInt();
      break;
    case ARRAY:
      Schema elementType = schema.getElementType();
      for (long l = in.skipArray(); l > 0; l = in.skipArray()) {
        for (long i = 0; i < l; i++) {
          skip(elementType, in);
        }
      }
      break;
    case MAP:
      Schema value = schema.getValueType();
      for (long l = in.skipMap(); l > 0; l = in.skipMap()) {
        for (long i = 0; i < l; i++) {
          in.skipString();
          skip(value, in);
        }
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        if (avroschema == null)
            // TODO: more polite way to handle this?
            throw new RuntimeException("Cannot read system table! Are you upgrading a pre-release version?");

        ByteBuffer value = avroschema.value();
        Schema schema = Schema.parse(ByteBufferUtil.string(value));

        // deserialize keyspaces using schema
        Collection<KSMetaData> keyspaces = new ArrayList<KSMetaData>();
        for (IColumn column : cf.getSortedColumns())
        {
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  @Test
  /** Test nesting of specific data within generic. */
  public void testSpecificWithinGeneric() throws Exception {
    // define a record with a field that's a generated TestRecord
    Schema schema = Schema.createRecord("Foo", "", "x.y.z", false);
    List<Schema.Field> fields = new ArrayList<Schema.Field>();
    fields.add(new Schema.Field("f", TestRecord.SCHEMA$, "", null));
    schema.setFields(fields);

    // create a generic instance of this record
    TestRecord nested = new TestRecord();
    nested.name = new Utf8("foo");
    nested.kind = Kind.BAR;
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    GenericData.get().hashCode(null, Schema.create(Type.NULL));
    GenericData.get().hashCode(null, Schema.createUnion(
        Arrays.asList(Schema.create(Type.BOOLEAN), Schema.create(Type.STRING))));
    List<CharSequence> stuff = new ArrayList<CharSequence>();
    stuff.add("string");
    Schema schema = recordSchema();
    GenericRecord r = new GenericData.Record(schema);
    r.put(0, stuff);
    GenericData.get().hashCode(r, schema);
  }
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    GenericData.get().hashCode(r, schema);
  }
 
  @Test
  public void testEquals() {
    Schema s = recordSchema();
    GenericRecord r0 = new GenericData.Record(s);
    GenericRecord r1 = new GenericData.Record(s);
    GenericRecord r2 = new GenericData.Record(s);
    Collection<CharSequence> l0 = new ArrayDeque<CharSequence>();
    List<CharSequence> l1 = new ArrayList<CharSequence>();
    GenericArray<CharSequence> l2 =
      new GenericData.Array<CharSequence>(1,s.getFields().get(0).schema());
    String foo = "foo";
    l0.add(new StringBuffer(foo));
    l1.add(foo);
    l2.add(new Utf8(foo));
    r0.put(0, l0);
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  }
 
  private Schema recordSchema() {
    List<Field> fields = new ArrayList<Field>();
    fields.add(new Field("anArray", Schema.createArray(Schema.create(Type.STRING)), null, null));
    Schema schema = Schema.createRecord("arrayFoo", "test", "mytest", false);
    schema.setFields(fields);
   
    return schema;
  }
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  }

  @Test
  public void testRecordGetFieldDoesntExist() throws Exception {
    List<Field> fields = new ArrayList<Field>();
    Schema schema = Schema.createRecord(fields);
    GenericData.Record record = new GenericData.Record(schema);
    assertNull(record.get("does not exist"));
  }
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    assertNull(record.get("does not exist"));
  }
 
  @Test
  public void testArrayReversal() {
      Schema schema = Schema.createArray(Schema.create(Schema.Type.INT));
      GenericArray<Integer> forward = new GenericData.Array<Integer>(10, schema);
      GenericArray<Integer> backward = new GenericData.Array<Integer>(10, schema);
      for (int i = 0; i <= 9; i++) {
        forward.add(i);
      }
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  @Test
  public void testWrite() throws IOException {
    String json = "{\"type\": \"record\", \"name\": \"r\", \"fields\": ["
      + "{ \"name\": \"f1\", \"type\": \"long\" }"
      + "]}";
    Schema s = Schema.parse(json);
    GenericRecord r = new GenericData.Record(s);
    r.put("f1", 100L);
    ByteArrayOutputStream bao = new ByteArrayOutputStream();
    GenericDatumWriter<GenericRecord> w =
      new GenericDatumWriter<GenericRecord>(s);
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