How to use

a

method

in

org.apache.ignite.internal.util.GridStringBuilder

/** {@inheritDoc} */
@Override protected void printPage(long addr, int pageSize, GridStringBuilder sb) throws IgniteCheckedException {
  sb.a("BPlusIO [\n\tcanGetRow=").a(canGetRow)
    .a(",\n\tleaf=").a(leaf)
    .a(",\n\titemSize=").a(itemSize)
    .a(",\n\tcnt=").a(getCount(addr))
    .a(",\n\tforward=").appendHex(getForward(addr))
    .a(",\n\tremoveId=").appendHex(getRemoveId(addr))
    .a("\n]");
}

  /** {@inheritDoc} */
  @Override protected void printPage(long addr, int pageSize, GridStringBuilder sb) throws IgniteCheckedException {
    sb.a("PageMeta[\n\ttreeRoot=").a(getReuseListRoot(addr))
      .a(",\n\tlastSuccessfulFullSnapshotId=").a(getLastSuccessfulFullSnapshotId(addr))
      .a(",\n\tlastSuccessfulSnapshotId=").a(getLastSuccessfulSnapshotId(addr))
      .a(",\n\tnextSnapshotTag=").a(getNextSnapshotTag(addr))
      .a(",\n\tlastSuccessfulSnapshotTag=").a(getLastSuccessfulSnapshotTag(addr))
      .a(",\n\tlastAllocatedPageCount=").a(getLastAllocatedPageCount(addr))
      .a(",\n\tcandidatePageCount=").a(getCandidatePageCount(addr))
      .a("\n]");
  }
}

/**
 * Writes overflow message to buffer if needed.
 *
 * @param buf String builder buffer.
 * @param size Size to compare with limit.
 */
private static void handleOverflow(SBLimitedLength buf, int size) {
  int overflow = size - COLLECTION_LIMIT;
  if (overflow > 0)
    buf.a("... and ").a(overflow).a(" more");
}

  /** {@inheritDoc} */
  @Override protected void printPage(long pageAddr, int pageSize, GridStringBuilder sb) throws IgniteCheckedException {
    super.printPage(pageAddr, pageSize, sb);

    byte state = getPartitionState(pageAddr);

    sb.a(",\nPagePartitionMeta[\n\tsize=").a(getSize(pageAddr))
      .a(",\n\tupdateCounter=").a(getUpdateCounter(pageAddr))
      .a(",\n\tglobalRemoveId=").a(getGlobalRemoveId(pageAddr))
      .a(",\n\tpartitionState=").a(state).a("(").a(GridDhtPartitionState.fromOrdinal(state)).a(")")
      .a(",\n\tcountersPageId=").a(getCountersPageId(pageAddr))
      .a("\n]");
  }
}

/**
 * Creates String key used for equality and hashing.
 */
private String createEqualityKey() {
  GridStringBuilder sb = new GridStringBuilder("(").a(usr).a(")@");
  if (uri.getScheme() != null)
    sb.a(uri.getScheme().toLowerCase());
  sb.a("://");
  if (uri.getAuthority() != null)
    sb.a(uri.getAuthority().toLowerCase());
  return sb.toString();
}

/** {@inheritDoc} */
@Override protected void printPage(long addr, int pageSize, GridStringBuilder sb) throws IgniteCheckedException {
  sb.a("DummyPageIO [\n");
  sb.a("addr=").a(addr).a(", ");
  sb.a("pageSize=").a(addr);
  sb.a("\n]");
}

/**
 * @param sb Sb.
 */
private static void appendJvmId(SB sb) {
  if (getBoolean(IGNITE_MBEAN_APPEND_JVM_ID)) {
    String jvmId = ManagementFactory.getRuntimeMXBean().getName();
    sb.a("jvmId=").a(jvmId).a(',');
  }
}

  /** {@inheritDoc} */
  @Override public String toString() {
    SB sb = new SB();
    sb.a('{')
      .a('"').a("id").a('"').a(':').a(id).a(',')
      .a('"').a("name").a('"').a(':').a('"').a(name).a('"').a(',')
      .a('"').a("ref").a('"').a(':').a(ref)
      .a('}');
    return sb.toString();
  }
}

/**
 * @param segment Segment index.
 * @return Segment file name.
 */
public static String fileName(long segment) {
  SB b = new SB();
  String segmentStr = Long.toString(segment);
  for (int i = segmentStr.length(); i < WAL_SEGMENT_FILE_NAME_LENGTH; i++)
    b.a('0');
  b.a(segmentStr).a(WAL_SEGMENT_FILE_EXT);
  return b.toString();
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(char[] str, int offset, int len) {
  if (lenLimit.overflowed(this)) {
    tail.append(Arrays.copyOfRange(str, offset, len));
    return this;
  }
  int curLen = length();
  super.a(str, offset, len);
  return onWrite(curLen);
}

/**
 * Short node representation.
 *
 * @param ns Grid nodes.
 * @return Short string representing the node.
 */
public static String toShortString(Collection<? extends ClusterNode> ns) {
  SB sb = new SB("Grid nodes [cnt=" + ns.size());
  for (ClusterNode n : ns)
    sb.a(", ").a(toShortString(n));
  return sb.a(']').toString();
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(String str) {
  if (lenLimit.overflowed(this)) {
    tail.append(str);
    return this;
  }
  int curLen = length();
  super.a(str);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(char c) {
  if (lenLimit.overflowed(this)) {
    tail.append(c);
    return this;
  }
  int curLen = length();
  super.a(c);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(char[] str) {
  if (lenLimit.overflowed(this)) {
    tail.append(str);
    return this;
  }
  int curLen = length();
  super.a(str);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(boolean b) {
  if (lenLimit.overflowed(this)) {
    tail.append(b);
    return this;
  }
  int curLen = length();
  super.a(b);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(long lng) {
  if (lenLimit.overflowed(this)) {
    tail.append(lng);
    return this;
  }
  int curLen = length();
  super.a(lng);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(double d) {
  if (lenLimit.overflowed(this)) {
    tail.append(d);
    return this;
  }
  int curLen = length();
  super.a(d);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(StringBuffer sb) {
  if (lenLimit.overflowed(this)) {
    tail.append(sb);
    return this;
  }
  int curLen = length();
  super.a(sb);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(CharSequence s) {
  if (lenLimit.overflowed(this)) {
    tail.append(s);
    return this;
  }
  int curLen = length();
  super.a(s);
  return onWrite(curLen);
}

/** {@inheritDoc} */
@Override public GridStringBuilder a(float f) {
  if (lenLimit.overflowed(this)) {
    tail.append(f);
    return this;
  }
  int curLen = length();
  super.a(f);
  return onWrite(curLen);
}