/*
* Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @author IBM Corp.
*
* Copyright IBM Corp. 1999-2000. All rights reserved.
*/
package javax.management.modelmbean;
import static com.sun.jmx.defaults.JmxProperties.MODELMBEAN_LOGGER;
import com.sun.jmx.mbeanserver.GetPropertyAction;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamField;
import java.lang.reflect.Constructor;
import java.security.AccessController;
import java.util.logging.Level;
import javax.management.Descriptor;
import javax.management.DescriptorAccess;
import javax.management.DescriptorKey;
import javax.management.MBeanConstructorInfo;
import javax.management.MBeanParameterInfo;
import javax.management.RuntimeOperationsException;
/**
* The ModelMBeanConstructorInfo object describes a constructor of the ModelMBean.
* It is a subclass of MBeanConstructorInfo with the addition of an associated Descriptor
* and an implementation of the DescriptorAccess interface.
* <P>
* <PRE>
* The fields in the descriptor are defined, but not limited to, the following: <P>
* name : constructor name
* descriptorType : must be "operation"
* role : must be "constructor"
* displayName : human readable name of constructor
* visibility : 1-4 where 1: always visible 4: rarely visible
* presentationString : xml formatted string to describe how to present operation
*</PRE>
*
* <p>The {@code persistPolicy} and {@code currencyTimeLimit} fields
* are meaningless for constructors, but are not considered invalid.
*
* <p>The default descriptor will have the {@code name}, {@code
* descriptorType}, {@code displayName} and {@code role} fields.
*
* <p>The <b>serialVersionUID</b> of this class is <code>3862947819818064362L</code>.
*
* @since 1.5
*/
@SuppressWarnings("serial") // serialVersionUID is not constant
public class ModelMBeanConstructorInfo
extends MBeanConstructorInfo
implements DescriptorAccess {
// Serialization compatibility stuff:
// Two serial forms are supported in this class. The selected form depends
// on system property "jmx.serial.form":
// - "1.0" for JMX 1.0
// - any other value for JMX 1.1 and higher
//
// Serial version for old serial form
private static final long oldSerialVersionUID = -4440125391095574518L;
//
// Serial version for new serial form
private static final long newSerialVersionUID = 3862947819818064362L;
//
// Serializable fields in old serial form
private static final ObjectStreamField[] oldSerialPersistentFields =
{
new ObjectStreamField("consDescriptor", Descriptor.class),
new ObjectStreamField("currClass", String.class)
};
//
// Serializable fields in new serial form
private static final ObjectStreamField[] newSerialPersistentFields =
{
new ObjectStreamField("consDescriptor", Descriptor.class)
};
//
// Actual serial version and serial form
private static final long serialVersionUID;
/**
* @serialField consDescriptor Descriptor The {@link Descriptor} containing the metadata for this instance
*/
private static final ObjectStreamField[] serialPersistentFields;
private static boolean compat = false;
static {
try {
GetPropertyAction act = new GetPropertyAction("jmx.serial.form");
String form = AccessController.doPrivileged(act);
compat = (form != null && form.equals("1.0"));
} catch (Exception e) {
// OK: No compat with 1.0
}
if (compat) {
serialPersistentFields = oldSerialPersistentFields;
serialVersionUID = oldSerialVersionUID;
} else {
serialPersistentFields = newSerialPersistentFields;
serialVersionUID = newSerialVersionUID;
}
}
//
// END Serialization compatibility stuff
/**
* @serial The {@link Descriptor} containing the metadata for this instance
*/
private Descriptor consDescriptor = createDefaultDescriptor();
private final static String currClass = "ModelMBeanConstructorInfo";
/**
* Constructs a ModelMBeanConstructorInfo object with a default
* descriptor. The {@link Descriptor} of the constructed
* object will include fields contributed by any annotations on
* the {@code Constructor} object that contain the {@link
* DescriptorKey} meta-annotation.
*
* @param description A human readable description of the constructor.
* @param constructorMethod The java.lang.reflect.Constructor object
* describing the MBean constructor.
*/
public ModelMBeanConstructorInfo(String description,
Constructor constructorMethod)
{
super(description, constructorMethod);
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(String,Constructor)",
"Entry");
}
consDescriptor = createDefaultDescriptor();
// put getter and setter methods in constructors list
// create default descriptor
}
/**
* Constructs a ModelMBeanConstructorInfo object. The {@link
* Descriptor} of the constructed object will include fields
* contributed by any annotations on the {@code Constructor}
* object that contain the {@link DescriptorKey}
* meta-annotation.
*
* @param description A human readable description of the constructor.
* @param constructorMethod The java.lang.reflect.Constructor object
* describing the ModelMBean constructor.
* @param descriptor An instance of Descriptor containing the
* appropriate metadata for this instance of the
* ModelMBeanConstructorInfo. If it is null, then a default
* descriptor will be created.If the descriptor does not
* contain the field "displayName" this fields is added in the
* descriptor with its default value.
*
* @exception RuntimeOperationsException Wraps an
* IllegalArgumentException. The descriptor is invalid, or
* descriptor field "name" is not equal to name parameter, or
* descriptor field "DescriptorType" is not equal to
* "operation" or descriptor field "role" is not equal to
* "constructor".
*/
public ModelMBeanConstructorInfo(String description,
Constructor constructorMethod,
Descriptor descriptor)
{
super(description, constructorMethod);
// put getter and setter methods in constructors list
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,Constructor,Descriptor)", "Entry");
}
if (descriptor == null)
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,Constructor,Descriptor)",
"Descriptor passed in is null, " +
"setting descriptor to default values");
}
consDescriptor = createDefaultDescriptor();
} else
{
if (isValid(descriptor))
{
consDescriptor = (Descriptor) descriptor.clone();
} else
{ // exception
consDescriptor = createDefaultDescriptor();
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid descriptor passed in parameter"), ("Exception occurred in ModelMBeanConstructorInfo constructor"));
}
}
}
/**
* Constructs a ModelMBeanConstructorInfo object with a default descriptor.
*
* @param name The name of the constructor.
* @param description A human readable description of the constructor.
* @param signature MBeanParameterInfo object array describing the parameters(arguments) of the constructor.
*/
public ModelMBeanConstructorInfo(String name,
String description,
MBeanParameterInfo[] signature)
{
super(name, description, signature);
// create default descriptor
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,String,MBeanParameterInfo[])", "Entry");
}
consDescriptor = createDefaultDescriptor();
}
/**
* Constructs a ModelMBeanConstructorInfo object.
*
* @param name The name of the constructor.
* @param description A human readable description of the constructor.
* @param signature MBeanParameterInfo objects describing the parameters(arguments) of the constructor.
* @param descriptor An instance of Descriptor containing the appropriate metadata
* for this instance of the MBeanConstructorInfo. If it is null then a default descriptor will be created.
* If the descriptor does not contain the field "displayName" this field is added in the descriptor with its default value.
*
* @exception RuntimeOperationsException Wraps an IllegalArgumentException. The descriptor is invalid, or descriptor field "name"
* is not equal to name parameter, or descriptor field "DescriptorType" is not equal to "operation" or descriptor field "role"
* is not equal to "constructor".
*/
public ModelMBeanConstructorInfo(String name,
String description,
MBeanParameterInfo[] signature,
Descriptor descriptor)
{
super(name, description, signature);
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,String,MBeanParameterInfo[],Descriptor)",
"Entry");
}
if (descriptor == null)
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,Method,Descriptor)",
"Descriptor passed in is null, " +
"setting descriptor to default values");
}
consDescriptor = createDefaultDescriptor();
} else
{
if (isValid(descriptor))
{
consDescriptor = (Descriptor) descriptor.clone();
} else
{ // exception
consDescriptor = createDefaultDescriptor();
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid descriptor passed in parameter"), ("Exception occurred in ModelMBeanConstructorInfo constructor"));
}
}
}
/**
* Constructs a new ModelMBeanConstructorInfo object from this ModelMBeanConstructor Object.
*
* @param old the ModelMBeanConstructorInfo to be duplicated
*
*/
ModelMBeanConstructorInfo(ModelMBeanConstructorInfo old)
{
super(old.getName(), old.getDescription(), old.getSignature());
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"ModelMBeanConstructorInfo)", "Entry");
}
if (old.consDescriptor == null)
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,Method,Descriptor)",
"Existing descriptor passed in is null, " +
"setting new descriptor to default values");
}
consDescriptor = createDefaultDescriptor();
} else
{
if (isValid(consDescriptor))
{
consDescriptor = (Descriptor) old.consDescriptor.clone();
} else
{ // exception
consDescriptor = createDefaultDescriptor();
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid descriptor passed in parameter"), ("Exception occurred in ModelMBeanConstructorInfo constructor"));
}
}
}
/**
* Creates and returns a new ModelMBeanConstructorInfo which is a duplicate of this ModelMBeanConstructorInfo.
*
*/
public Object clone ()
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"clone()", "Entry");
}
return(new ModelMBeanConstructorInfo(this)) ;
}
/**
* Returns a copy of the associated Descriptor.
*
* @return Descriptor associated with the
* ModelMBeanConstructorInfo object.
*
* @see #setDescriptor
*/
public Descriptor getDescriptor()
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"getDescriptor()", "Entry");
}
if (consDescriptor == null)
{
consDescriptor = createDefaultDescriptor();
}
return((Descriptor)consDescriptor.clone());
}
/**
* Sets associated Descriptor (full replace) of
* ModelMBeanConstructorInfo. If the new Descriptor is null,
* then the associated Descriptor reverts to a default
* descriptor. The Descriptor is validated before it is
* assigned. If the new Descriptor is invalid, then a
* RuntimeOperationsException wrapping an
* IllegalArgumentException is thrown.
*
* @param inDescriptor replaces the Descriptor associated with
* the ModelMBeanConstructor. If the descriptor does not
* contain the field "displayName" this field is added in the
* descriptor with its default value.
*
* @exception RuntimeOperationsException Wraps an
* IllegalArgumentException. The descriptor is invalid, or
* descriptor field "name" is not equal to name parameter, or
* descriptor field "DescriptorType" is not equal to
* "operation" or descriptor field "role" is not equal to
* "constructor".
*
* @see #getDescriptor
*/
public void setDescriptor(Descriptor inDescriptor)
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"setDescriptor()", "Entry");
}
if (inDescriptor == null)
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"ModelMBeanConstructorInfo(" +
"String,Method,Descriptor)",
"Descriptor passed in is null, " +
"setting descriptor to default values");
}
consDescriptor = createDefaultDescriptor();
} else
{
if (isValid(inDescriptor))
{
consDescriptor = (Descriptor) inDescriptor.clone();
} else
{
throw new RuntimeOperationsException(new IllegalArgumentException("Invalid descriptor passed in parameter"), ("Exception occurred in ModelMBeanConstructorInfo setDescriptor"));
}
}
}
/**
* Returns a string containing the entire contents of the ModelMBeanConstructorInfo in human readable form.
*/
public String toString()
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"toString()", "Entry");
}
String retStr =
"ModelMBeanConstructorInfo: " + this.getName() +
" ; Description: " + this.getDescription() +
" ; Descriptor: " + this.getDescriptor() +
" ; Signature: ";
MBeanParameterInfo[] pTypes = this.getSignature();
for (int i=0; i < pTypes.length; i++)
{
retStr = retStr.concat((pTypes[i]).getType() + ", ");
}
return retStr;
}
/**
* Creates default descriptor for constructor as follows:
* descriptorType=operation,role=constructor,
* name=this.getName(),displayname=this.getName(),visibility=1
*/
private Descriptor createDefaultDescriptor()
{
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"createDefaultDescriptor()", "Entry");
}
return new DescriptorSupport(new String[] {"descriptorType=operation",
"role=constructor",
("name=" + this.getName()),
("displayname=" + this.getName())});
}
/**
* Tests that the descriptor is valid and adds appropriate default fields not already
* specified. Field values must be correct for field names.
* Descriptor must have the same name as the operation,the descriptorType field must
* be "operation", the role field must be set to "constructor".
* The following fields will be defaulted if they are not already set:
* displayName=this.getName()
*/
private boolean isValid(Descriptor inDesc)
{
boolean results = true;
String badField="none";
// if name != this.getName
// if (descriptorType != operation)
// look for displayName, persistPolicy, visibility and add in
if (inDesc == null)
{
badField="nullDescriptor";
results = false;
}
else if (!inDesc.isValid())
{ // checks for empty descriptors, null,
// checks for empty name and descriptorType adn valid values for fields.
badField="invalidDescriptor";
results = false;
}
else
{
if (! ((String)inDesc.getFieldValue("name")).equalsIgnoreCase(this.getName()))
{
badField="name";
results = false;
}
if (! ((String)inDesc.getFieldValue("descriptorType")).equalsIgnoreCase("operation"))
{
badField="descriptorType";
results = false;
}
if (inDesc.getFieldValue("role") == null)
{
inDesc.setField("role","constructor");
}
if (! ((String)inDesc.getFieldValue("role")).equalsIgnoreCase("constructor"))
{
badField = "role";
results = false;
} else if ((inDesc.getFieldValue("displayName")) == null)
{
inDesc.setField("displayName",this.getName());
}
}
if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
MODELMBEAN_LOGGER.logp(Level.FINER,
ModelMBeanConstructorInfo.class.getName(),
"isValid(Descriptor)", "Returning " + results +
" : Invalid field is " + badField);
}
return results;
}
/**
* Deserializes a {@link ModelMBeanConstructorInfo} from an {@link ObjectInputStream}.
*/
private void readObject(ObjectInputStream in)
throws IOException, ClassNotFoundException {
// New serial form ignores extra field "currClass"
in.defaultReadObject();
}
/**
* Serializes a {@link ModelMBeanConstructorInfo} 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("consDescriptor", consDescriptor);
fields.put("currClass", currClass);
out.writeFields();
}
else
{
// Serializes this instance in the new serial form
//
out.defaultWriteObject();
}
}
}