Java Convert via ByteBuffer toString(InputStream is)

Description

to String

License

Open Source License

Declaration

public static String toString(InputStream is) throws IOException 

Method Source Code

//package com.java2s;
/*//from   w  ww  .  ja  v a  2  s . c o  m
 * Copyright (c) 2014 Magnet Systems, Inc.
 * All rights reserved.
 *
 * 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.
 */

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

public class Main {
    public static String toString(InputStream is) throws IOException {
        StringBuilder result = new StringBuilder();
        InputStreamReader in = new InputStreamReader(is);
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();

        int nRead;
        byte[] data = new byte[16384];

        while ((nRead = is.read(data, 0, data.length)) != -1) {
            buffer.write(data, 0, nRead);
        }

        buffer.flush();

        return new String(buffer.toByteArray(), Charset.forName("UTF-8"));
    }

    public static byte[] toByteArray(InputStream inputStream) throws IOException {
        // this dynamically extends to take the bytes you read
        ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();

        // this is storage overwritten on each iteration with bytes
        int bufferSize = 1024;
        byte[] buffer = new byte[bufferSize];

        // we need to know how may bytes were read to write them to the
        // byteBuffer
        int len = 0;
        while ((len = inputStream.read(buffer)) != -1) {
            byteBuffer.write(buffer, 0, len);
        }

        // and then we can return your byte array.
        return byteBuffer.toByteArray();
    }
}

Related

1. toSimpleList(List attrValues)
2. toString(byte[] buf, int arrayOffset, int origLimit, StringBuilder sb)
3. toString(byte[] value, int offset, int length, String encoding)
4. toString(final String filename)
5. toString(final Xid xid)
6. toString(Object o)
7. toString(Reader r)
8. toString(Reader reader)
9. toText(@Nonnull byte[] bytes)