Example usage for org.apache.hadoop.io OutputBuffer OutputBuffer

Introduction

In this page you can find the example usage for org.apache.hadoop.io OutputBuffer OutputBuffer.

Prototype

public OutputBuffer() 

Source Link

Document

Constructs a new empty buffer.

Usage

From source file:com.asakusafw.runtime.util.hadoop.ConfigurationDetecter.java

License:Apache License

/**
 * Read the path in the target file.//from  w  ww.j  a va 2 s.co m
 * @param path the file which has another path
 * @return the read path
 * @throws IOException if failed to read the path
 * @throws IllegalArgumentException if some parameters were {@code null}
 */
public static File read(File path) throws IOException {
    if (path == null) {
        throw new IllegalArgumentException("path must not be null"); //$NON-NLS-1$
    }
    String result;
    try (InputStream input = new FileInputStream(path); OutputBuffer ob = new OutputBuffer();) {
        byte[] buf = new byte[256];
        while (true) {
            int read = input.read(buf);
            if (read < 0) {
                break;
            }
            ob.write(buf, 0, read);
        }
        result = new String(ob.getData(), 0, ob.getLength(), ENCODING).trim();
    }
    File file = new File(result);
    return file;
}

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