java.io.ObjectOutputStream#putFields ( )源码实例Demo

/**
 * Serializes a {@link Notification} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
    if (compat) {
        // Serializes this instance in the old serial form
        //
        ObjectOutputStream.PutField fields = out.putFields();
        fields.put("type", type);
        fields.put("sequenceNumber", sequenceNumber);
        fields.put("timeStamp", timeStamp);
        fields.put("userData", userData);
        fields.put("message", message);
        fields.put("source", source);
        out.writeFields();
    } else {
        // Serializes this instance in the new serial form
        //
        out.defaultWriteObject();
    }
}
 

/**
 * Serializes a {@link RelationTypeSupport} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
  if (compat)
  {
    // Serializes this instance in the old serial form
    //
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("myTypeName", typeName);
    fields.put("myRoleName2InfoMap", roleName2InfoMap);
    fields.put("myIsInRelServFlg", isInRelationService);
    out.writeFields();
  }
  else
  {
    // Serializes this instance in the new serial form
    //
    out.defaultWriteObject();
  }
}
 

/**
 * @serialData Default fields.
 */
/*
 * Writes the contents of the permsMap field out as a Hashtable for
 * serialization compatibility with earlier releases.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Don't call out.defaultWriteObject()

    // Copy perms into a Hashtable
    Hashtable<Permission, Permission> perms =
            new Hashtable<>(permsMap.size()*2);
    perms.putAll(permsMap);

    // Write out serializable fields
    ObjectOutputStream.PutField pfields = out.putFields();
    pfields.put("perms", perms);
    out.writeFields();
}
 

/**
 * @serialData Serialized fields. Convert Map to Hashtable for backward
 * compatibility.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Convert the HashMap to Hashtable
    Hashtable<String, UserDataRecord> ud = (userData == null)? null : new Hashtable<>(userData);

    // Write serialized fields
    ObjectOutputStream.PutField pf = out.putFields();
    pf.put("name", name);
    pf.put("entities", entities);
    pf.put("notations", notations);
    pf.put("elements", elements);
    pf.put("publicID", publicID);
    pf.put("systemID", systemID);
    pf.put("internalSubset", internalSubset);
    pf.put("doctypeNumber", doctypeNumber);
    pf.put("userData", ud);
    out.writeFields();
}
 

private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("z", z);
    fields.put("b", b);
    fields.put("c", c);
    fields.put("s", s);
    fields.put("i", i);
    fields.put("f", f);
    fields.put("j", j);
    fields.put("d", d);
    fields.put("str", str);
    fields.put("parent", parent);
    fields.put("left", left);
    fields.put("right", right);
    out.writeFields();
}
 

/**
 * Serializes a {@link ModelMBeanAttributeInfo} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
  if (compat)
  {
    // Serializes this instance in the old serial form
    //
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("attrDescriptor", attrDescriptor);
    fields.put("currClass", currClass);
    out.writeFields();
  }
  else
  {
    // Serializes this instance in the new serial form
    //
    out.defaultWriteObject();
  }
}
 

/**
 * Serializes a {@link ModelMBeanAttributeInfo} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
  if (compat)
  {
    // Serializes this instance in the old serial form
    //
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("attrDescriptor", attrDescriptor);
    fields.put("currClass", currClass);
    out.writeFields();
  }
  else
  {
    // Serializes this instance in the new serial form
    //
    out.defaultWriteObject();
  }
}
 

/**
 * Serializes a {@link Role} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
  if (compat)
  {
    // Serializes this instance in the old serial form
    //
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("myName", name);
    fields.put("myObjNameList", objectNameList);
    out.writeFields();
  }
  else
  {
    // Serializes this instance in the new serial form
    //
    out.defaultWriteObject();
  }
}
 

/**
 * Serializes a {@link ModelMBeanOperationInfo} to an {@link ObjectOutputStream}.
 */
private void writeObject(ObjectOutputStream out)
        throws IOException {
  if (compat)
  {
    // Serializes this instance in the old serial form
    //
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("operationDescriptor", operationDescriptor);
    fields.put("currClass", currClass);
    out.writeFields();
  }
  else
  {
    // Serializes this instance in the new serial form
    //
    out.defaultWriteObject();
  }
}
 

private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("z", z);
    fields.put("b", b);
    fields.put("c", c);
    fields.put("s", s);
    fields.put("i", i);
    fields.put("f", f);
    fields.put("j", j);
    fields.put("d", d);
    fields.put("str", str);
    fields.put("parent", parent);
    fields.put("left", left);
    fields.put("right", right);
    out.writeFields();
}
 

/**
 * @serialData "permissions" field (a Vector containing the ServicePermissions).
 */
/*
 * Writes the contents of the perms field out as a Vector for
 * serialization compatibility with earlier releases.
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    // Don't call out.defaultWriteObject()

    // Write out Vector
    Vector<Permission> permissions = new Vector<>(perms.size());

    synchronized (this) {
        permissions.addAll(perms);
    }

    ObjectOutputStream.PutField pfields = out.putFields();
    pfields.put("permissions", permissions);
    out.writeFields();
}
 

/**
 * Serializes this <code>Locale</code> to the specified <code>ObjectOutputStream</code>.
 * @param out the <code>ObjectOutputStream</code> to write
 * @throws IOException
 * @since 1.7
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("language", baseLocale.getLanguage());
    fields.put("script", baseLocale.getScript());
    fields.put("country", baseLocale.getRegion());
    fields.put("variant", baseLocale.getVariant());
    fields.put("extensions", localeExtensions == null ? "" : localeExtensions.getID());
    fields.put("hashcode", -1); // place holder just for backward support
    out.writeFields();
}
 

/**
 * @serialData Null terminated list of <code>PropertyChangeListeners</code>.
 * <p>
 * At serialization time we skip non-serializable listeners and
 * only serialize the serializable listeners.
 */
private void writeObject(ObjectOutputStream s) throws IOException {
    Hashtable<String, PropertyChangeSupport> children = null;
    PropertyChangeListener[] listeners = null;
    synchronized (this.map) {
        for (Entry<String, PropertyChangeListener[]> entry : this.map.getEntries()) {
            String property = entry.getKey();
            if (property == null) {
                listeners = entry.getValue();
            } else {
                if (children == null) {
                    children = new Hashtable<>();
                }
                PropertyChangeSupport pcs = new PropertyChangeSupport(this.source);
                pcs.map.set(null, entry.getValue());
                children.put(property, pcs);
            }
        }
    }
    ObjectOutputStream.PutField fields = s.putFields();
    fields.put("children", children);
    fields.put("source", this.source);
    fields.put("propertyChangeSupportSerializedDataVersion", 2);
    s.writeFields();

    if (listeners != null) {
        for (PropertyChangeListener l : listeners) {
            if (l instanceof Serializable) {
                s.writeObject(l);
            }
        }
    }
    s.writeObject(null);
}
 

private synchronized void writeObject(ObjectOutputStream out) throws IOException {
	Hashtable<String, AdminPermission> hashtable = new Hashtable<String, AdminPermission>(permissions);
	ObjectOutputStream.PutField pfields = out.putFields();
	pfields.put("permissions", hashtable);
	pfields.put("all_allowed", all_allowed);
	out.writeFields();
}
 

/**
 * writeObject is called to save the state of the {@code BatchUpdateException}
 * to a stream.
 */
private void writeObject(ObjectOutputStream s)
        throws IOException, ClassNotFoundException {

    ObjectOutputStream.PutField fields = s.putFields();
    fields.put("updateCounts", updateCounts);
    fields.put("longUpdateCounts", longUpdateCounts);
    s.writeFields();
}
 

/**
 * writeObject is called to save the state of the {@code BatchUpdateException}
 * to a stream.
 */
private void writeObject(ObjectOutputStream s)
        throws IOException, ClassNotFoundException {

    ObjectOutputStream.PutField fields = s.putFields();
    fields.put("updateCounts", updateCounts);
    fields.put("longUpdateCounts", longUpdateCounts);
    s.writeFields();
}
 

/**
 * Serializes this <code>Locale</code> to the specified <code>ObjectOutputStream</code>.
 * @param out the <code>ObjectOutputStream</code> to write
 * @throws IOException
 * @since 1.7
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("language", baseLocale.getLanguage());
    fields.put("script", baseLocale.getScript());
    fields.put("country", baseLocale.getRegion());
    fields.put("variant", baseLocale.getVariant());
    fields.put("extensions", localeExtensions == null ? "" : localeExtensions.getID());
    fields.put("hashcode", -1); // place holder just for backward support
    out.writeFields();
}
 

/**
 * Serializes this <code>Locale</code> to the specified <code>ObjectOutputStream</code>.
 * @param out the <code>ObjectOutputStream</code> to write
 * @throws IOException
 * @since 1.7
 */
private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    fields.put("language", baseLocale.getLanguage());
    fields.put("script", baseLocale.getScript());
    fields.put("country", baseLocale.getRegion());
    fields.put("variant", baseLocale.getVariant());
    fields.put("extensions", localeExtensions == null ? "" : localeExtensions.getID());
    fields.put("hashcode", -1); // place holder just for backward support
    out.writeFields();
}
 

/**
 * writeObject is called to save the state of the {@code BatchUpdateException}
 * to a stream.
 */
private void writeObject(ObjectOutputStream s)
        throws IOException, ClassNotFoundException {

    ObjectOutputStream.PutField fields = s.putFields();
    fields.put("updateCounts", updateCounts);
    fields.put("longUpdateCounts", longUpdateCounts);
    s.writeFields();
}
 

/**
 * Serializes a {@link DescriptorSupport} to an {@link ObjectOutputStream}.
 */
/* If you set jmx.serial.form to "1.2.0" or "1.2.1", then we are
   bug-compatible with those versions.  Specifically, field names
   are forced to lower-case before being written.  This
   contradicts the spec, which, though it does not mention
   serialization explicitly, does say that the case of field names
   is preserved.  But in 1.2.0 and 1.2.1, this requirement was not
   met.  Instead, field names in the descriptor map were forced to
   lower case.  Those versions expect this to have happened to a
   descriptor they deserialize and e.g. getFieldValue will not
   find a field whose name is spelt with a different case.
*/
private void writeObject(ObjectOutputStream out) throws IOException {
    ObjectOutputStream.PutField fields = out.putFields();
    boolean compat = "1.0".equals(serialForm);
    if (compat)
        fields.put("currClass", currClass);

    /* Purge the field "targetObject" from the DescriptorSupport before
     * serializing since the referenced object is typically not
     * serializable.  We do this here rather than purging the "descriptor"
     * variable below because that HashMap doesn't do case-insensitivity.
     * See CR 6332962.
     */
    SortedMap<String, Object> startMap = descriptorMap;
    if (startMap.containsKey("targetObject")) {
        startMap = new TreeMap<String, Object>(descriptorMap);
        startMap.remove("targetObject");
    }

    final HashMap<String, Object> descriptor;
    if (compat || "1.2.0".equals(serialForm) ||
            "1.2.1".equals(serialForm)) {
        descriptor = new HashMap<String, Object>();
        for (Map.Entry<String, Object> entry : startMap.entrySet())
            descriptor.put(entry.getKey().toLowerCase(), entry.getValue());
    } else
        descriptor = new HashMap<String, Object>(startMap);

    fields.put("descriptor", descriptor);
    out.writeFields();
}