本文整理汇总了Java中org.apache.avro.io.Encoder.writeDouble方法的典型用法代码示例。如果您正苦于以下问题：Java Encoder.writeDouble方法的具体用法？Java Encoder.writeDouble怎么用？Java Encoder.writeDouble使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.avro.io.Encoder的用法示例。
在下文中一共展示了Encoder.writeDouble方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: writeDouble
import org.apache.avro.io.Encoder; //导入方法依赖的package包/类
/**
* Write double. Users can cast long, float and integer to double.
*
*/
protected void writeDouble(Object datum, Encoder out) throws IOException {
double num;
if (datum instanceof Integer) {
num = ((Integer) datum).doubleValue();
} else if (datum instanceof Long) {
num = ((Long) datum).doubleValue();
} else if (datum instanceof Float) {
num = ((Float) datum).doubleValue();
} else if (datum instanceof Double) {
num = (Double) datum;
} else
throw new IOException("Cannot convert to double:" + datum.getClass());
out.writeDouble(num);
}
示例2: testReadEncoderOutput
import org.apache.avro.io.Encoder; //导入方法依赖的package包/类
@Test
public void testReadEncoderOutput() throws Exception {
ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
Encoder encoder = new MemcmpEncoder(byteOutputStream);
encoder.writeFloat(1.1f);
InputStream in = new ByteArrayInputStream(byteOutputStream.toByteArray());
Decoder decoder = new MemcmpDecoder(in);
float readFloat = decoder.readFloat();
assertEquals(1.1f, readFloat, 0.0001);
byteOutputStream = new ByteArrayOutputStream();
encoder = new MemcmpEncoder(byteOutputStream);
encoder.writeDouble(1.1d);
in = new ByteArrayInputStream(byteOutputStream.toByteArray());
decoder = new MemcmpDecoder(in);
double readDouble = decoder.readDouble();
assertEquals(1.1d, readDouble, 0.0001);
byteOutputStream = new ByteArrayOutputStream();
encoder = new MemcmpEncoder(byteOutputStream);
encoder.writeString("hello there");
in = new ByteArrayInputStream(byteOutputStream.toByteArray());
decoder = new MemcmpDecoder(in);
Utf8 readString = decoder.readString(null);
assertEquals("hello there", readString.toString());
}
示例3: testReadEncoderOutput
import org.apache.avro.io.Encoder; //导入方法依赖的package包/类
@Test
public void testReadEncoderOutput() throws Exception {
ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
Encoder encoder = new ColumnEncoder(byteOutputStream);
encoder.writeFloat(1.1f);
encoder.flush();
InputStream in = new ByteArrayInputStream(byteOutputStream.toByteArray());
Decoder decoder = new ColumnDecoder(in);
float readFloat = decoder.readFloat();
assertEquals(1.1f, readFloat, 0.0001);
byteOutputStream = new ByteArrayOutputStream();
encoder = new ColumnEncoder(byteOutputStream);
encoder.writeDouble(1.1d);
encoder.flush();
in = new ByteArrayInputStream(byteOutputStream.toByteArray());
decoder = new ColumnDecoder(in);
double readDouble = decoder.readDouble();
assertEquals(1.1d, readDouble, 0.0001);
byteOutputStream = new ByteArrayOutputStream();
encoder = new ColumnEncoder(byteOutputStream);
encoder.writeString("hello there");
encoder.flush();
in = new ByteArrayInputStream(byteOutputStream.toByteArray());
decoder = new ColumnDecoder(in);
Utf8 readString = decoder.readString(null);
assertEquals("hello there", readString.toString());
}