Norconex Commons Lang 1.6.0 Released

Release 1.6.0 of Norconex Commons Lang provides new Java utility classes and enhancements to existing ones:

New Classes

TimeIdGenerator

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Use TimeIdGenerator when you need to generate numeric IDs that are unique within a JVM. It generates Java long values that are guaranteed to be in order (but can have gaps).  Can generate up to 1 million unique IDs per milliseconds. Read Javadoc.

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long id = 0;

id = TimeIdGenerator.next();
System.out.println(id); // prints 1427256596604000000

id = TimeIdGenerator.last();
System.out.println(id); // prints 1427256596604000000

id = TimeIdGenerator.next();
System.out.println(id); // prints 1427256596604000001

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TextReader

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A new class for reading large text, one chunk at a time, based on a specified maximum read size. When a text is too large, it tries to split it wisely at each paragraphs, sentences, or words (whichever one is possible). Read Javadoc.

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// Process maximum 500KB at a time
TextReader reader = new TextReader(originalReader, 500 * 1024);
String textChunk = null;
while ((textChunk = reader.readText()) != null) {
    // do something with textChunk
}
reader.close();

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ByteArrayOutputStream

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An alternate version of Java and Apache Commons ByteArrayOutputStream. Like the Apache version, this version is faster than Java ByteArrayOutputStream. In addition, it provides additional methods for obtaining a subset of bytes ranging from zero to the total number of bytes written so far. Read Javadoc.

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ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write("ABCDE".getBytes());        
out.write("FGHIJKLMNOPQRSTUVWXYZ".getBytes());        

byte[] b = new byte[10];
out.getBytes(b, 0);
System.out.println(new String(b)); // prints ABCDEFGHIJ
System.out.println((char) out.getByte(15)); // prints P

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Enhancements

IOUtil enhancements

The following utility methods were added to the IOUtil class:

• IOUtil#toBufferedReader(Reader) returns either a BufferedReader wrapping an original reader, or the reader itself if it already implements BufferedReader.
• IOUtil#toBufferedInputStream(InputStream) returns either a BufferedInputStream wrapping an original reader, or the reader itself if it already implements BufferedInputStream.
• IOUtil#startsWith(InputStream, byte[]) returns true if the given input stream starts with the specified byte array.
• IOUtil#borrowBytes(InputStream, int) gets and resets the specified number of bytes from the input stream. It must support mark(int).

Other improvements

• CachedInputSream now supports mark(int). Mark value is always unlimited (argument is ignored).
• ContentType and ContentFamily now support BIG2 and Quattro Pro file formats.

Get your copy

Download Norconex Commons Lang 1.6.0.

You can also view the release notes for a complete list of changes.