Examples of com.fasterxml.jackson.core.util.BufferRecycler

com.fasterxml.jackson.core.util.BufferRecycler
This is a small utility class, whose main functionality is to allow simple reuse of raw byte/char buffers. It is usually used through ThreadLocal member of the owning class pointing to instance of this class through a SoftReference. The end result is a low-overhead GC-cleanable recycling: hopefully ideal for use by stream readers.

    @Override
    public DBObject decode(InputStream in, DBCollection collection)
            throws IOException {
        JacksonDBObject<T> decoded = new JacksonDBObject<T>();
        decoded.setObject((T) objectMapper.readValue(new DBDecoderBsonParser(
                new IOContext(new BufferRecycler(), in, false), 0, in, decoded,
                dbCollection, objectMapper), type));
        return decoded;
    }

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     * Note: only public to give access for <code>ObjectMapper</code>
     */
    public BufferRecycler _getBufferRecycler()
    {
        SoftReference<BufferRecycler> ref = _recyclerRef.get();
        BufferRecycler br = (ref == null) ? null : ref.get();


        if (br == null) {
            br = new BufferRecycler();
            _recyclerRef.set(new SoftReference<BufferRecycler>(br));
        }
        return br;
    }

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     * Note: only public to give access for <code>ObjectMapper</code>
     */
    public BufferRecycler _getBufferRecycler()
    {
        SoftReference<BufferRecycler> ref = _recyclerRef.get();
        BufferRecycler br = (ref == null) ? null : ref.get();


        if (br == null) {
            br = new BufferRecycler();
            _recyclerRef.set(new SoftReference<BufferRecycler>(br));
        }
        return br;
    }

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     * Note: only public to give access for <code>ObjectMapper</code>
     */
    public BufferRecycler _getBufferRecycler()
    {
        SoftReference<BufferRecycler> ref = _recyclerRef.get();
        BufferRecycler br = (ref == null) ? null : ref.get();


        if (br == null) {
            br = new BufferRecycler();
            _recyclerRef.set(new SoftReference<BufferRecycler>(br));
        }
        return br;
    }

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     * Note: only public to give access for <code>ObjectMapper</code>
     */
    public BufferRecycler _getBufferRecycler()
    {
        SoftReference<BufferRecycler> ref = _recyclerRef.get();
        BufferRecycler br = (ref == null) ? null : ref.get();


        if (br == null) {
            br = new BufferRecycler();
            _recyclerRef.set(new SoftReference<BufferRecycler>(br));
        }
        return br;
    }

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    extends BaseTest
{
    public void testUtf8Issue462() throws Exception
    {
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        IOContext ioc = new IOContext(new BufferRecycler(), bytes, true);
        JsonGenerator gen = new UTF8JsonGenerator(ioc, 0, null, bytes);
        String str = "Natuurlijk is alles gelukt en weer een tevreden klant\uD83D\uDE04";
        int length = 4000 - 38;


        for (int i = 1; i <= length; ++i) {

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     * Trivially simple basic test to ensure all basic append
     * methods work
     */
    public void testSimple()
    {
        TextBuffer tb = new TextBuffer(new BufferRecycler());
        tb.append('a');
        tb.append(new char[] { 'X', 'b' }, 1, 1);
        tb.append("c", 0, 1);
        assertEquals(3, tb.contentsAsArray().length);
        assertEquals("abc", tb.toString());

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        assertNotNull(tb.expandCurrentSegment());
    }


    public void testLonger()
    {
        TextBuffer tb = new TextBuffer(new BufferRecycler());
        for (int i = 0; i < 2000; ++i) {
            tb.append("abc", 0, 3);
        }
        String str = tb.contentsAsString();
        assertEquals(6000, str.length());

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          }
         final String STR = sb.toString();
         final String EXP = "a" + STR + "c";
 
         // ok: first test with String:
         TextBuffer tb = new TextBuffer(new BufferRecycler());
         tb.append('a');
         tb.append(STR, 0, len);
         tb.append('c');
         assertEquals(len+2, tb.size());
         assertEquals(EXP, tb.contentsAsString());
 
         // then char[]
         tb = new TextBuffer(new BufferRecycler());
         tb.append('a');
         tb.append(STR.toCharArray(), 0, len);
         tb.append('c');
         assertEquals(len+2, tb.size());
         assertEquals(EXP, tb.contentsAsString());

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      }


      // [Core#152]
      public void testExpand()
      {
          TextBuffer tb = new TextBuffer(new BufferRecycler());
          char[] buf = tb.getCurrentSegment();


          while (buf.length < 500 * 1000) {
              char[] old = buf;
              buf = tb.expandCurrentSegment();

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