org.apache.ignite.internal.util.io.GridDataInput Maven / Gradle / Ivy

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Java-based middleware for in-memory processing of big data in a distributed environment.
There is a newer version: 3.0.0-beta1
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.ignite.internal.util.io;

import java.io.DataInput;
import java.io.IOException;
import java.io.InputStream;

/**
 * Extended data input.
 */
public interface GridDataInput extends DataInput {
    /**
     * @param bytes Bytes.
     * @param len Length.
     */
    public void bytes(byte[] bytes, int len);

    /**
     * @param in Underlying input stream.
     * @throws IOException In case of error.
     */
    public void inputStream(InputStream in) throws IOException;

    /**
     * Resets data output.
     *
     * @throws IOException In case of error.
     */
    public void reset() throws IOException;

    /**
     * @return The next byte of data, or {@code -1} if the end of the stream is reached.
     * @exception IOException In case of error.
     */
    public int read() throws IOException;

    /**
     * @param b Buffer into which the data is read.
     * @return Total number of bytes read into the buffer, or {@code -1} is there is no
     *     more data because the end of the stream has been reached.
     * @exception IOException In case of error.
     */
    public int read(byte b[]) throws IOException;

    /**
     * @param b Buffer into which the data is read.
     * @param off Start offset.
     * @param len Maximum number of bytes to read.
     * @return Total number of bytes read into the buffer, or {@code -1} is there is no
     *     more data because the end of the stream has been reached.
     * @exception IOException In case of error.
     */
    public int read(byte b[], int off, int len) throws IOException;

    /**
     * Reads array of {@code byte}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public byte[] readByteArray() throws IOException;

    /**
     * Reads array of {@code short}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public short[] readShortArray() throws IOException;

    /**
     * Reads array of {@code int}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public int[] readIntArray() throws IOException;

    /**
     * Reads array of {@code long}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public long[] readLongArray() throws IOException;

    /**
     * Reads array of {@code float}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public float[] readFloatArray() throws IOException;

    /**
     * Reads array of {@code double}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public double[] readDoubleArray() throws IOException;

    /**
     * Reads array of {@code boolean}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public boolean[] readBooleanArray() throws IOException;

    /**
     * Reads array of {@code char}s.
     *
     * @return Array.
     * @throws IOException In case of error.
     */
    public char[] readCharArray() throws IOException;
}