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Copy pathBinaryWriter.java
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Copy pathBinaryWriter.java
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125 lines (103 loc) · 2.91 KB
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package DNA.IO;
import java.io.*;
import java.nio.*;
import org.bouncycastle.math.ec.ECPoint;
public class BinaryWriter implements AutoCloseable {
private DataOutputStream writer;
private byte[] array = new byte[8];
private ByteBuffer buffer = ByteBuffer.wrap(array).order(ByteOrder.LITTLE_ENDIAN);
public BinaryWriter(OutputStream stream) {
this.writer = new DataOutputStream(stream);
}
@Override
public void close() throws IOException {
writer.close();
}
public void flush() throws IOException {
writer.flush();
}
public void write(byte[] buffer) throws IOException {
writer.write(buffer);
}
public void write(byte[] buffer, int index, int length) throws IOException {
writer.write(buffer, index, length);
}
public void writeBoolean(boolean v) throws IOException {
writer.writeBoolean(v);
}
public void writeByte(byte v) throws IOException {
writer.writeByte(v);
}
public void writeDouble(double v) throws IOException {
buffer.putDouble(0, v);
writer.write(array, 0, 8);
}
public void writeECPoint(ECPoint v) throws IOException {
writer.write(v.getEncoded(true));
}
public void writeFixedString(String v, int length) throws IOException {
if (v == null) {
throw new IllegalArgumentException();
}
if (v.length() > length) {
throw new IllegalArgumentException();
}
byte[] bytes = v.getBytes("UTF-8");
if (bytes.length > length) {
throw new IllegalArgumentException();
}
writer.write(bytes);
if (bytes.length < length) {
writer.write(new byte[length - bytes.length]);
}
}
public void writeFloat(float v) throws IOException {
buffer.putFloat(0, v);
writer.write(array, 0, 4);
}
public void writeInt(int v) throws IOException {
buffer.putInt(0, v);
writer.write(array, 0, 4);
}
public void writeLong(long v) throws IOException {
buffer.putLong(0, v);
writer.write(array, 0, 8);
}
public void writeSerializable(Serializable v) throws IOException {
v.serialize(this);
}
public void writeSerializableArray(Serializable[] v) throws IOException {
writeVarInt(v.length);
for (int i = 0; i < v.length; i++) {
v[i].serialize(this);
}
}
public void writeShort(short v) throws IOException {
buffer.putShort(0, v);
writer.write(array, 0, 2);
}
public void writeVarBytes(byte[] v) throws IOException {
writeVarInt(v.length);
writer.write(v);
}
public void writeVarInt(long v) throws IOException {
if (v < 0) {
throw new IllegalArgumentException();
}
if (v < 0xFD) {
writeByte((byte)v);
} else if (v <= 0xFFFF) {
writeByte((byte)0xFD);
writeShort((short)v);
} else if (v <= 0xFFFFFFFF) {
writeByte((byte)0xFE);
writeInt((int)v);
} else {
writeByte((byte)0xFF);
writeLong(v);
}
}
public void writeVarString(String v) throws IOException {
writeVarBytes(v.getBytes("UTF-8"));
}
}