Java ByteBuffer Clear fillBuffer(ReadableByteChannel channel, ByteBuffer buf, boolean clear)

Description

fill Buffer

License

Apache License

Declaration

public static boolean fillBuffer(ReadableByteChannel channel, ByteBuffer buf, boolean clear)
            throws IOException 

Method Source Code

//package com.java2s;
/*//from  ww  w .j av  a2  s.c o m
 * 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.
 */

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;

public class Main {
    public static boolean fillBuffer(ReadableByteChannel channel, ByteBuffer buf, boolean clear)
            throws IOException {
        if (clear) {
            buf.clear();
        }

        while (true) {
            int cnt = channel.read(buf);
            if (cnt < 0) {
                return false;
            }
            if (buf.position() == buf.capacity()) {
                break;// fill to capacity
            }
        }
        return true;
    }
}

Related

1. clearAll(ByteBuffer[] buffers)
2. clearAndEnsureCapacity(ByteBuffer buffer, int elements)
3. clearRemaining(ByteBuffer buffer)
4. clearRemainingFrame(ByteBuffer buffer, int position)
5. clearString(ByteBuffer buffer)
6. free(ByteBuffer buffer)
7. free(ByteBuffer buffer)
8. free(ByteBuffer byteBuffer)
9. freeDB(ByteBuffer buffer)