com.esotericsoftware.kryo.util.Util类的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中com.esotericsoftware.kryo.util.Util类的一些代码示例，展示了Util类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Util类的具体详情如下：
包路径：com.esotericsoftware.kryo.util.Util
类名称：Util

Util介绍

[英]A few utility methods, mostly for private use.
[中]一些实用方法，主要用于私人用途。

代码示例

代码示例来源：origin: apache/metron

  1. @Override
  2.  public Object newInstance () {
  3.   try {
  4.    return constructor.newInstance();
  5.   } catch (Exception ex) {
  6.    throw new KryoException("Error constructing instance of class: " + className(type), ex);
  7.   }
  8.  }
  9. };

代码示例来源：origin: com.esotericsoftware/kryo

  1. /** Returns the class formatted as a string. The format varies depending on the type. */
  2. static public String className (Class type) {
  3.   if (type.isArray()) {
  4.     Class elementClass = getElementClass(type);
  5.     StringBuilder buffer = new StringBuilder(16);
  6.     for (int i = 0, n = getDimensionCount(type); i < n; i++)
  7.       buffer.append("[]");
  8.     return className(elementClass) + buffer;
  9.   }
  10.   if (type.isPrimitive() || type == Object.class || type == Boolean.class || type == Byte.class || type == Character.class
  11.     || type == Short.class || type == Integer.class || type == Long.class || type == Float.class || type == Double.class
  12.     || type == String.class) {
  13.     return type.getSimpleName();
  14.   }
  15.   return type.getName();
  16. }

代码示例来源：origin: com.esotericsoftware.kryo/kryo

  1. /** Returns false for all primitive wrappers. */
  2.   public boolean useReferences (Class type) {
  3.     return !Util.isWrapperClass(type);
  4.   }
  5. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. if (type.isPrimitive()) type = getWrapperClass(type);
  2. boolean referencesSupported = referenceResolver.useReferences(type);
  3. int id;
  4.   id = input.readVarInt(true);
  5.   if (id == Kryo.NULL) {
  6.     if (TRACE || (DEBUG && depth == 1)) log("Read", null);
  7.     readObject = null;
  8.     return REF;
  9.   if (TRACE) trace("kryo", "Read initial object reference " + id + ": " + className(type));
  10.   readReferenceIds.add(id);
  11.   return readReferenceIds.size;
  12. if (DEBUG) debug("kryo", "Read object reference " + id + ": " + string(readObject));
  13. return REF;

代码示例来源：origin: com.esotericsoftware/kryo

  1. public Registration readClass (Input input) {
  2.   int classID = input.readVarInt(true);
  3.   switch (classID) {
  4.   case Kryo.NULL:
  5.     if (TRACE || (DEBUG && kryo.getDepth() == 1)) log("Read", null);
  6.     return null;
  7.   case NAME + 2: // Offset for NAME and NULL.
  8.     return readName(input);
  9.   }
  10.   if (classID == memoizedClassId) return memoizedClassIdValue;
  11.   Registration registration = idToRegistration.get(classID - 2);
  12.   if (registration == null) throw new KryoException("Encountered unregistered class ID: " + (classID - 2));
  13.   if (TRACE) trace("kryo", "Read class " + (classID - 2) + ": " + className(registration.getType()));
  14.   memoizedClassId = classID;
  15.   memoizedClassIdValue = registration;
  16.   return registration;
  17. }

代码示例来源：origin: com.esotericsoftware.kryo/kryo

  1. public Registration register (Registration registration) {
  2.   if (registration == null) throw new IllegalArgumentException("registration cannot be null.");
  3.   if (registration.getId() != NAME) {
  4.     if (TRACE) {
  5.       trace("kryo", "Register class ID " + registration.getId() + ": " + className(registration.getType()) + " ("
  6.         + registration.getSerializer().getClass().getName() + ")");
  7.     }
  8.     idToRegistration.put(registration.getId(), registration);
  9.   } else if (TRACE) {
  10.     trace("kryo", "Register class name: " + className(registration.getType()) + " ("
  11.       + registration.getSerializer().getClass().getName() + ")");
  12.   }
  13.   classToRegistration.put(registration.getType(), registration);
  14.   if (registration.getType().isPrimitive()) classToRegistration.put(getWrapperClass(registration.getType()), registration);
  15.   return registration;
  16. }

代码示例来源：origin: com.esotericsoftware/kryo-shaded

  1. /** Writes an object using the specified serializer. The registered serializer is ignored. */
  2. public void writeObject (Output output, Object object, Serializer serializer) {
  3.   if (output == null) throw new IllegalArgumentException("output cannot be null.");
  4.   if (object == null) throw new IllegalArgumentException("object cannot be null.");
  5.   if (serializer == null) throw new IllegalArgumentException("serializer cannot be null.");
  6.   beginObject();
  7.   try {
  8.     if (references && writeReferenceOrNull(output, object, false)) {
  9.       serializer.setGenerics(this, null);
  10.       return;
  11.     }
  12.     if (TRACE || (DEBUG && depth == 1)) log("Write", object);
  13.     serializer.write(this, output, object);
  14.   } finally {
  15.     if (--depth == 0 && autoReset) reset();
  16.   }
  17. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. /** @param object May be null if mayBeNull is true.
  2.  * @return true if no bytes need to be written for the object. */
  3. boolean writeReferenceOrNull (Output output, Object object, boolean mayBeNull) {
  4.   if (object == null) {
  5.     if (TRACE || (DEBUG && depth == 1)) log("Write", null);
  6.     output.writeVarInt(Kryo.NULL, true);
  7.     return true;
  8.   }
  9.   if (!referenceResolver.useReferences(object.getClass())) {
  10.     if (mayBeNull) output.writeVarInt(Kryo.NOT_NULL, true);
  11.     return false;
  12.   }
  13.   // Determine if this object has already been seen in this object graph.
  14.   int id = referenceResolver.getWrittenId(object);
  15.   // If not the first time encountered, only write reference ID.
  16.   if (id != -1) {
  17.     if (DEBUG) debug("kryo", "Write object reference " + id + ": " + string(object));
  18.     output.writeVarInt(id + 2, true); // + 2 because 0 and 1 are used for NULL and NOT_NULL.
  19.     return true;
  20.   }
  21.   // Otherwise write NOT_NULL and then the object bytes.
  22.   id = referenceResolver.addWrittenObject(object);
  23.   output.writeVarInt(NOT_NULL, true);
  24.   if (TRACE) trace("kryo", "Write initial object reference " + id + ": " + string(object));
  25.   return false;
  26. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. public Class read (Kryo kryo, Input input, Class<Class> type) {
  2.     Registration registration = kryo.readClass(input);
  3.     int isPrimitive = input.read();
  4.     Class typ = registration != null ? registration.getType() : null;
  5.     if (typ == null || !typ.isPrimitive()) return typ;
  6.     return (isPrimitive == 1) ? typ : getWrapperClass(typ);
  7.   }
  8. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. final private void writeLittleEndianLong (long val) {
  2.   if (isLittleEndian)
  3.     writeLong(val);
  4.   else
  5.     writeLong(Util.swapLong(val));
  6. }

代码示例来源：origin: com.esotericsoftware.kryo/kryo

  1. final private void writeLittleEndianInt (int val) {
  2.   if (isLittleEndian)
  3.     writeInt(val);
  4.   else
  5.     writeInt(Util.swapInt(val));
  6. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. /** Returns true if the specified type is final. Final types can be serialized more efficiently because they are
  2.  * non-polymorphic.
  3.  * <p>
  4.  * This can be overridden to force non-final classes to be treated as final. Eg, if an application uses ArrayList extensively
  5.  * but never uses an ArrayList subclass, treating ArrayList as final could allow FieldSerializer to save 1-2 bytes per
  6.  * ArrayList field. */
  7. public boolean isFinal (Class type) {
  8.   if (type == null) throw new IllegalArgumentException("type cannot be null.");
  9.   if (type.isArray()) return Modifier.isFinal(Util.getElementClass(type).getModifiers());
  10.   return Modifier.isFinal(type.getModifiers());
  11. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. /** Logs a message about an object. The log level and the string format of the object depend on the object type. */
  2. static public void log (String message, Object object) {
  3.   if (object == null) {
  4.     if (TRACE) trace("kryo", message + ": null");
  5.     return;
  6.   }
  7.   Class type = object.getClass();
  8.   if (type.isPrimitive() || type == Boolean.class || type == Byte.class || type == Character.class || type == Short.class
  9.     || type == Integer.class || type == Long.class || type == Float.class || type == Double.class || type == String.class) {
  10.     if (TRACE) trace("kryo", message + ": " + string(object));
  11.   } else {
  12.     debug("kryo", message + ": " + string(object));
  13.   }
  14. }

代码示例来源：origin: com.esotericsoftware.kryo/kryo

  1. if (type.isPrimitive()) type = getWrapperClass(type);
  2. boolean referencesSupported = referenceResolver.useReferences(type);
  3. int id;
  4.   id = input.readVarInt(true);
  5.   if (id == Kryo.NULL) {
  6.     if (TRACE || (DEBUG && depth == 1)) log("Read", null);
  7.     readObject = null;
  8.     return REF;
  9.   if (TRACE) trace("kryo", "Read initial object reference " + id + ": " + className(type));
  10.   readReferenceIds.add(id);
  11.   return readReferenceIds.size;
  12. if (DEBUG) debug("kryo", "Read object reference " + id + ": " + string(readObject));
  13. return REF;

代码示例来源：origin: com.esotericsoftware.kryo/kryo

  1. public Registration readClass (Input input) {
  2.   int classID = input.readVarInt(true);
  3.   switch (classID) {
  4.   case Kryo.NULL:
  5.     if (TRACE || (DEBUG && kryo.getDepth() == 1)) log("Read", null);
  6.     return null;
  7.   case NAME + 2: // Offset for NAME and NULL.
  8.     return readName(input);
  9.   }
  10.   if (classID == memoizedClassId) return memoizedClassIdValue;
  11.   Registration registration = idToRegistration.get(classID - 2);
  12.   if (registration == null) throw new KryoException("Encountered unregistered class ID: " + (classID - 2));
  13.   if (TRACE) trace("kryo", "Read class " + (classID - 2) + ": " + className(registration.getType()));
  14.   memoizedClassId = classID;
  15.   memoizedClassIdValue = registration;
  16.   return registration;
  17. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. public Registration register (Registration registration) {
  2.   if (registration == null) throw new IllegalArgumentException("registration cannot be null.");
  3.   if (registration.getId() != NAME) {
  4.     if (TRACE) {
  5.       trace("kryo", "Register class ID " + registration.getId() + ": " + className(registration.getType()) + " ("
  6.         + registration.getSerializer().getClass().getName() + ")");
  7.     }
  8.     idToRegistration.put(registration.getId(), registration);
  9.   } else if (TRACE) {
  10.     trace("kryo", "Register class name: " + className(registration.getType()) + " ("
  11.       + registration.getSerializer().getClass().getName() + ")");
  12.   }
  13.   classToRegistration.put(registration.getType(), registration);
  14.   if (registration.getType().isPrimitive()) classToRegistration.put(getWrapperClass(registration.getType()), registration);
  15.   return registration;
  16. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. /** Writes an object using the specified serializer. The registered serializer is ignored. */
  2. public void writeObject (Output output, Object object, Serializer serializer) {
  3.   if (output == null) throw new IllegalArgumentException("output cannot be null.");
  4.   if (object == null) throw new IllegalArgumentException("object cannot be null.");
  5.   if (serializer == null) throw new IllegalArgumentException("serializer cannot be null.");
  6.   beginObject();
  7.   try {
  8.     if (references && writeReferenceOrNull(output, object, false)) {
  9.       serializer.setGenerics(this, null);
  10.       return;
  11.     }
  12.     if (TRACE || (DEBUG && depth == 1)) log("Write", object);
  13.     serializer.write(this, output, object);
  14.   } finally {
  15.     if (--depth == 0 && autoReset) reset();
  16.   }
  17. }

代码示例来源：origin: com.esotericsoftware/kryo-shaded

  1. /** @param object May be null if mayBeNull is true.
  2.  * @return true if no bytes need to be written for the object. */
  3. boolean writeReferenceOrNull (Output output, Object object, boolean mayBeNull) {
  4.   if (object == null) {
  5.     if (TRACE || (DEBUG && depth == 1)) log("Write", null);
  6.     output.writeVarInt(Kryo.NULL, true);
  7.     return true;
  8.   }
  9.   if (!referenceResolver.useReferences(object.getClass())) {
  10.     if (mayBeNull) output.writeVarInt(Kryo.NOT_NULL, true);
  11.     return false;
  12.   }
  13.   // Determine if this object has already been seen in this object graph.
  14.   int id = referenceResolver.getWrittenId(object);
  15.   // If not the first time encountered, only write reference ID.
  16.   if (id != -1) {
  17.     if (DEBUG) debug("kryo", "Write object reference " + id + ": " + string(object));
  18.     output.writeVarInt(id + 2, true); // + 2 because 0 and 1 are used for NULL and NOT_NULL.
  19.     return true;
  20.   }
  21.   // Otherwise write NOT_NULL and then the object bytes.
  22.   id = referenceResolver.addWrittenObject(object);
  23.   output.writeVarInt(NOT_NULL, true);
  24.   if (TRACE) trace("kryo", "Write initial object reference " + id + ": " + string(object));
  25.   return false;
  26. }

代码示例来源：origin: com.esotericsoftware/kryo-shaded

  1. public Class read (Kryo kryo, Input input, Class<Class> type) {
  2.     Registration registration = kryo.readClass(input);
  3.     int isPrimitive = input.read();
  4.     Class typ = registration != null ? registration.getType() : null;
  5.     if (typ == null || !typ.isPrimitive()) return typ;
  6.     return (isPrimitive == 1) ? typ : getWrapperClass(typ);
  7.   }
  8. }

代码示例来源：origin: com.esotericsoftware/kryo

  1. final private void writeLittleEndianLong (long val) {
  2.   if (isLittleEndian)
  3.     writeLong(val);
  4.   else
  5.     writeLong(Util.swapLong(val));
  6. }

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