com.xxdb.data.BasicComplexVector Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of dolphindb-javaapi Show documentation
The messaging and data conversion protocol between Java and DolphinDB server
There is a newer version: 3.00.2.2
package com.xxdb.data;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Arrays;
import java.util.List;

import com.xxdb.io.ExtendedDataInput;
import com.xxdb.io.ExtendedDataOutput;
import com.xxdb.io.Double2;

public class BasicComplexVector extends AbstractVector{
	protected Double2[] values;
	private int size;
	private int capaticy;
	
	public BasicComplexVector(int size){
		this(DATA_FORM.DF_VECTOR, size);
	}
	
	public BasicComplexVector(List list){
		super(DATA_FORM.DF_VECTOR);
		if (list != null) {
			values = new Double2[list.size()];
			for (int i=0; i capaticy && values.length > 0){
			values = Arrays.copyOf(values, values.length * 2);
		}else if (values.length <= 0){
			values = Arrays.copyOf(values, values.length + 1);
		}
		capaticy = values.length;
		values[size] = value;
		size++;
	}

	public void addRange(Double2[] valueList) {
		values = Arrays.copyOf(values, valueList.length + values.length);
		System.arraycopy(valueList, 0, values, size, valueList.length);
		size += valueList.length;
		capaticy = values.length;
	}

	@Override
	public void Append(Scalar value) throws Exception{
		add(new Double2(((BasicComplex)value).getReal(), ((BasicComplex)value).getImage()));
	}

	@Override
	public void Append(Vector value) {
		addRange(((BasicComplexVector)value).getdataArray());
	}

	public Double2[] getdataArray(){
		Double2[] data = new Double2[size];
		System.arraycopy(values, 0, data, 0, size);
		return data;
	}

	public Entity get(int index){
		return new BasicComplex(values[index].x, values[index].y);
	}
	
	public Vector getSubVector(int[] indices){
		int length = indices.length;
		Double2[] sub = new Double2[length];
		for(int i=0; i getElementClass(){
		return BasicComplex.class;
	}

	@Override
	public int rows() {
		return size;
	}
	
	protected void writeVectorToOutputStream(ExtendedDataOutput out) throws IOException{
		Double2[] data = new Double2[size];
		System.arraycopy(values, 0, data, 0, size);
		out.writeDouble2Array(data);
	}
	
	@Override
	public int asof(Scalar value) {
		throw new RuntimeException("BasicComplexVector.asof not supported.");
	}

	@Override
	public ByteBuffer writeVectorToBuffer(ByteBuffer buffer) throws IOException {
		boolean isLittleEndian = buffer.order() == ByteOrder.LITTLE_ENDIAN;
		Double2[] data = new Double2[size];
		System.arraycopy(values, 0, data, 0, size);
		for (Double2 val: data) {
			if (isLittleEndian) {
				buffer.putDouble(val.x);
				buffer.putDouble(val.y);
			}else {
				buffer.putDouble(val.y);
				buffer.putDouble(val.x);
			}
		}
		return buffer;
	}

	@Override
	public int serialize(int indexStart, int offect, int targetNumElement, NumElementAndPartial numElementAndPartial, ByteBuffer out) throws IOException{
		boolean isLittleEndian = out.order() == ByteOrder.LITTLE_ENDIAN;
		targetNumElement = Math.min((out.remaining() / getUnitLength()), targetNumElement);
		for (int i = 0; i < targetNumElement; ++i){
			if (isLittleEndian) {
				out.putDouble(values[indexStart + i].x);
				out.putDouble(values[indexStart + i].y);
			}else {
				out.putDouble(values[indexStart + i].y);
				out.putDouble(values[indexStart + i].x);
			}
		}
		numElementAndPartial.numElement = targetNumElement;
		numElementAndPartial.partial = 0;
		return targetNumElement * 16;
	}

	public Double2[] getValues() {
		return values;
	}
}