[ https://issues.apache.org/jira/browse/LANG-341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Henri Yandell updated LANG-341: ------------------------------- Fix Version/s: 3.0 Setting fix version to 3.0 for consideration there. A unit test would be much appreciated by the way :) > [NumberUtils] Please add number <> byte[] methods > ------------------------------------------------- > > Key: LANG-341 > URL: https://issues.apache.org/jira/browse/LANG-341 > Project: Commons Lang > Issue Type: New Feature > Reporter: Lilianne E. Blaze > Fix For: 3.0 > > > Hello, > I need a set of methods to convert Long to or from a byte[] array, as if > writing / reading from Data(Input/Output)Stream( > ByteArray(Input/Output)Stream ). > First, doing it with Streams seems a bit wasteful, second, it seems a > pretty general use. Would it be possible to add something like that to, > for example, > org.apache.commons.lang.math.NumberUtils? > Example code: > static public long toLong(byte[] b) > { > return toLong(b, 0); > } > > static public long toLong(byte[] b, int offset) > { > return (((long)b[offset] << 56) + > ((long)(b[offset + 1] & 255) << 48) + > ((long)(b[offset + 2] & 255) << 40) + > ((long)(b[offset + 3] & 255) << 32) + > ((long)(b[offset + 4] & 255) << 24) + > ((b[offset + 5] & 255) << 16) + > ((b[offset + 6] & 255) << 8) + > ((b[offset + 7] & 255) << 0)); > } > > static public byte[] longToByteArray(long l) > { > byte b[] = new byte[8]; > longToByteArray(l, b, 0); > return b; > } > > static public void longToByteArray(long l, byte b[], int offset) > { > b[offset] = (byte)(l >>> 56); > b[offset + 1] = (byte)(l >>> 48); > b[offset + 2] = (byte)(l >>> 40); > b[offset + 3] = (byte)(l >>> 32); > b[offset + 4] = (byte)(l >>> 24); > b[offset + 5] = (byte)(l >>> 16); > b[offset + 6] = (byte)(l >>> 8); > b[offset + 7] = (byte)(l >>> 0); > } -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]