cc.blynk.clickhouse.util.guava.LittleEndianDataOutputStream Maven / Gradle / Ivy

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Light and fast JDBC driver for ClickHouse
There is a newer version: 1.4.4
/*
 * Copyright (C) 2007 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package cc.blynk.clickhouse.util.guava;

import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Objects;

public final class LittleEndianDataOutputStream extends FilterOutputStream implements DataOutput {

    public LittleEndianDataOutputStream(OutputStream out) {
        super(new DataOutputStream(Objects.requireNonNull(out)));
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        // Override slow FilterOutputStream impl
        out.write(b, off, len);
    }

    @Override
    public void writeBoolean(boolean v) throws IOException {
        ((DataOutputStream) out).writeBoolean(v);
    }

    @Override
    public void writeByte(int v) throws IOException {
        ((DataOutputStream) out).writeByte(v);
    }

    @Deprecated
    @Override
    public void writeBytes(String s) throws IOException {
        ((DataOutputStream) out).writeBytes(s);
    }

    @Override
    public void writeChar(int v) throws IOException {
        writeShort(v);
    }

    @Override
    public void writeChars(String s) throws IOException {
        for (int i = 0; i < s.length(); i++) {
            writeChar(s.charAt(i));
        }
    }

    @Override
    public void writeDouble(double v) throws IOException {
        writeLong(Double.doubleToLongBits(v));
    }

    @Override
    public void writeFloat(float v) throws IOException {
        writeInt(Float.floatToIntBits(v));
    }

    @Override
    public void writeInt(int v) throws IOException {
        out.write(0xFF & v);
        out.write(0xFF & (v >> 8));
        out.write(0xFF & (v >> 16));
        out.write(0xFF & (v >> 24));
    }

    @Override
    public void writeLong(long v) throws IOException {
        byte[] bytes = StreamUtils.longToByteArray(Long.reverseBytes(v));
        write(bytes, 0, bytes.length);
    }

    @Override
    public void writeShort(int v) throws IOException {
        out.write(0xFF & v);
        out.write(0xFF & (v >> 8));
    }

    @Override
    public void writeUTF(String str) throws IOException {
        ((DataOutputStream) out).writeUTF(str);
    }

    @Override
    public void close() throws IOException {
        out.close();
    }
}