Example usage for io.netty.buffer ByteBuf asReadOnly

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf asReadOnly.

Prototype

public abstract ByteBuf asReadOnly();

Source Link

Document

Returns a read-only version of this buffer.

Usage

From source file:com.heliosapm.streams.collector.groovy.ByteBufReaderSource.java

License:Apache License

/**
 * Loads the source file into a ByteBuf and returns it as a read only buffer
 * @return the loaded ByteBuf/*from   www.j  ava  2 s. com*/
 */
protected ByteBuf loadSourceFile() {
    ByteBuf buf = BufferManager.getInstance().directBuffer((int) this.sourceFile.length());
    FileReader fr = null;
    BufferedReader br = null;
    String line = null;
    try {
        fr = new FileReader(sourceFile);
        br = new BufferedReader(fr);
        while ((line = br.readLine()) != null) {
            final String enrichedLine = StringHelper.resolveTokens(line, scriptProperties);
            buf.writeCharSequence(enrichedLine + EOL, UTF8);
        }
        return buf.asReadOnly();
    } catch (Exception ex) {
        throw new RuntimeException("Failed to read source from source file [" + sourceFile + "]", ex);
    } finally {
        if (br != null)
            try {
                br.close();
            } catch (Exception x) {
                /* No Op */}
        if (fr != null)
            try {
                fr.close();
            } catch (Exception x) {
                /* No Op */}
    }
}

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