protected long computeEstimatedMemorySize() { long result = 0; if (!textArray.isDirect()) result += (Character.SIZE / 8) * textArray.capacity(); result += (Integer.SIZE / 8) * textIndexArray.length; result += (Double.SIZE / 8) * latlonArray.length; return result; }
public static void test(CharBuffer buff, CharBuffer slice) throws RuntimeException { boolean marked = false; try { slice.reset(); marked = true; } catch (InvalidMarkException ime) { // expected } if (marked || slice.position() != 0 || buff.remaining() != slice.limit() || buff.remaining() != slice.capacity()) { throw new RuntimeException("Calling the CharBuffer.slice method failed."); } }
public static void main(String[] args) throws Exception { System.out.println(">>> StringCharBufferSliceTest-main: testing the slice method..."); final String in = "for testing"; System.out.println(">>> StringCharBufferSliceTest-main: testing with the position 0."); CharBuffer buff = CharBuffer.wrap(in); test(buff, buff.slice()); System.out.println(">>> StringCharBufferSliceTest-main: testing with new position."); buff.position(2); test(buff, buff.slice()); System.out.println( ">>> StringCharBufferSliceTest-main: testing with non zero initial position."); buff = CharBuffer.wrap(in, 3, in.length()); test(buff, buff.slice()); System.out.println(">>> StringCharBufferSliceTest-main: testing slice result with get()"); buff.position(4); buff.limit(7); CharBuffer slice = buff.slice(); for (int i = 0; i < 3; i++) { if (slice.get() != buff.get()) { throw new RuntimeException("Wrong characters in slice result."); } } System.out.println(">>> StringCharBufferSliceTest-main: testing slice result with get(int)"); buff.position(4); buff.limit(7); slice = buff.slice(); for (int i = 0; i < 3; i++) { if (slice.get(i) != buff.get(4 + i)) { throw new RuntimeException("Wrong characters in slice result."); } } System.out.println(">>> StringCharBufferSliceTest-main: testing slice with result of slice"); buff.position(0); buff.limit(buff.capacity()); slice = buff.slice(); for (int i = 0; i < 4; i++) { slice.position(i); CharBuffer nextSlice = slice.slice(); if (nextSlice.position() != 0) throw new RuntimeException("New buffer's position should be zero"); if (!nextSlice.equals(slice)) throw new RuntimeException("New buffer should be equal"); slice = nextSlice; } System.out.println(">>> StringCharBufferSliceTest-main: testing toString."); buff.position(4); buff.limit(7); slice = buff.slice(); if (!slice.toString().equals("tes")) { throw new RuntimeException("bad toString() after slice(): " + slice.toString()); } System.out.println(">>> StringCharBufferSliceTest-main: testing subSequence."); buff.position(4); buff.limit(8); slice = buff.slice(); CharSequence subSeq = slice.subSequence(1, 3); if (subSeq.charAt(0) != 'e' || subSeq.charAt(1) != 's') { throw new RuntimeException("bad subSequence() after slice(): '" + subSeq + "'"); } System.out.println(">>> StringCharBufferSliceTest-main: testing duplicate."); buff.position(4); buff.limit(8); slice = buff.slice(); CharBuffer dupe = slice.duplicate(); if (dupe.charAt(0) != 't' || dupe.charAt(1) != 'e' || dupe.charAt(2) != 's' || dupe.charAt(3) != 't') { throw new RuntimeException("bad duplicate() after slice(): '" + dupe + "'"); } System.out.println(">>> StringCharBufferSliceTest-main: done!"); }