How to use

readSize

method

in

org.apache.solr.common.util.JavaBinCodec

public List<Object> readArray(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 ArrayList<Object> l = new ArrayList<>(sz);
 for (int i = 0; i < sz; i++) {
  l.add(readVal(dis));
 }
 return l;
}

public List<Object> readArray(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 ArrayList<Object> l = new ArrayList<>(sz);
 for (int i = 0; i < sz; i++) {
  l.add(readVal(dis));
 }
 return l;
}

public String readExternString(DataInputInputStream fis) throws IOException {
 int idx = readSize(fis);
 if (idx != 0) {// idx != 0 is the index of the extern string
  return stringsList.get(idx - 1);
 } else {// idx == 0 means it has a string value
  tagByte = fis.readByte();
  String s = readStr(fis, stringCache);
  if (stringsList == null) stringsList = new ArrayList<>();
  stringsList.add(s);
  return s;
 }
}

public String readExternString(DataInputInputStream fis) throws IOException {
 int idx = readSize(fis);
 if (idx != 0) {// idx != 0 is the index of the extern string
  return stringsList.get(idx - 1);
 } else {// idx == 0 means it has a string value
  tagByte = fis.readByte();
  String s = readStr(fis, stringCache);
  if (stringsList == null) stringsList = new ArrayList<>();
  stringsList.add(s);
  return s;
 }
}

public SimpleOrderedMap<Object> readOrderedMap(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 SimpleOrderedMap<Object> nl = new SimpleOrderedMap<>(sz);
 for (int i = 0; i < sz; i++) {
  String name = (String) readVal(dis);
  Object val = readVal(dis);
  nl.add(name, val);
 }
 return nl;
}

public NamedList<Object> readNamedList(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 NamedList<Object> nl = new NamedList<>(sz);
 for (int i = 0; i < sz; i++) {
  String name = (String) readVal(dis);
  Object val = readVal(dis);
  nl.add(name, val);
 }
 return nl;
}

public SimpleOrderedMap<Object> readOrderedMap(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 SimpleOrderedMap<Object> nl = new SimpleOrderedMap<>();
 for (int i = 0; i < sz; i++) {
  String name = (String) readVal(dis);
  Object val = readVal(dis);
  nl.add(name, val);
 }
 return nl;
}

public NamedList<Object> readNamedList(DataInputInputStream dis) throws IOException {
 int sz = readSize(dis);
 NamedList<Object> nl = new NamedList<>();
 for (int i = 0; i < sz; i++) {
  String name = (String) readVal(dis);
  Object val = readVal(dis);
  nl.add(name, val);
 }
 return nl;
}

public SolrDocument readSolrDocument(DataInputInputStream dis) throws IOException {
 tagByte = dis.readByte();
 int size = readSize(dis);
 SolrDocument doc = new SolrDocument(new LinkedHashMap<>(size));
 for (int i = 0; i < size; i++) {
  String fieldName;
  Object obj = readVal(dis); // could be a field name, or a child document
  if (obj instanceof SolrDocument) {
   doc.addChildDocument((SolrDocument)obj);
   continue;
  } else {
   fieldName = (String)obj;
  }
  Object fieldVal = readVal(dis);
  doc.setField(fieldName, fieldVal);
 }
 return doc;
}

public String readStr(DataInputInputStream dis, StringCache stringCache) throws IOException {
 int sz = readSize(dis);
 if (bytes == null || bytes.length < sz) bytes = new byte[sz];
 dis.readFully(bytes, 0, sz);
 if (stringCache != null) {
  return stringCache.get(bytesRef.reset(bytes, 0, sz));
 } else {
  arr.reset();
  ByteUtils.UTF8toUTF16(bytes, 0, sz, arr);
  return arr.toString();
 }
}

public String readStr(DataInputInputStream dis, StringCache stringCache) throws IOException {
 int sz = readSize(dis);
 if (bytes == null || bytes.length < sz) bytes = new byte[sz];
 dis.readFully(bytes, 0, sz);
 if (stringCache != null) {
  return stringCache.get(bytesRef.reset(bytes, 0, sz));
 } else {
  arr.reset();
  ByteUtils.UTF8toUTF16(bytes, 0, sz, arr);
  return arr.toString();
 }
}

public SolrDocument readSolrDocument(DataInputInputStream dis) throws IOException {
 tagByte = dis.readByte();
 int size = readSize(dis);
 SolrDocument doc = new SolrDocument();
 for (int i = 0; i < size; i++) {
  String fieldName;
  Object obj = readVal(dis); // could be a field name, or a child document
  if (obj instanceof SolrDocument) {
   doc.addChildDocument((SolrDocument)obj);
   continue;
  } else {
   fieldName = (String)obj;
  }
  Object fieldVal = readVal(dis);
  doc.setField(fieldName, fieldVal);
 }
 return doc;
}