/* * Copyright (c) 1999, 2008, 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. */package javax.management;import com.sun.jmx.mbeanserver.GetPropertyAction;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.ObjectStreamField;import java.security.AccessController;/** * This class represents numbers that are arguments to relational constraints. * A NumericValueExp may be used anywhere a ValueExp is required. * * <p>The <b>serialVersionUID</b> of this class is <code>-4679739485102359104L</code>. * * @serial include * * @since 1.5 */@SuppressWarnings("serial") // serialVersionUID not constantclass NumericValueExp extends QueryEval implements ValueExp { // 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 = -6227876276058904000L; // // Serial version for new serial form private static final long newSerialVersionUID = -4679739485102359104L; // // Serializable fields in old serial form private static final ObjectStreamField[] oldSerialPersistentFields = { new ObjectStreamField("longVal", Long.TYPE), new ObjectStreamField("doubleVal", Double.TYPE), new ObjectStreamField("valIsLong", Boolean.TYPE) }; // // Serializable fields in new serial form private static final ObjectStreamField[] newSerialPersistentFields = { new ObjectStreamField("val", Number.class) }; // // Actual serial version and serial form private static final long serialVersionUID; /** * @serialField val Number The numeric value * * <p>The <b>serialVersionUID</b> of this class is <code>-4679739485102359104L</code>. */ private static final ObjectStreamField[] serialPersistentFields; private Number val = 0.0; 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: exception means no compat with 1.0, too bad } if (compat) { serialPersistentFields = oldSerialPersistentFields; serialVersionUID = oldSerialVersionUID; } else { serialPersistentFields = newSerialPersistentFields; serialVersionUID = newSerialVersionUID; } } // // END Serialization compatibility stuff /** * Basic constructor. */ public NumericValueExp() { } /** Creates a new NumericValue representing the numeric literal <val>.*/ NumericValueExp(Number val) { this.val = val; } /** * Returns a double numeric value */ public double doubleValue() { if (val instanceof Long || val instanceof Integer) { return (double)(val.longValue()); } return val.doubleValue(); } /** * Returns a long numeric value */ public long longValue() { if (val instanceof Long || val instanceof Integer) { return val.longValue(); } return (long)(val.doubleValue()); } /** * Returns true is if the numeric value is a long, false otherwise. */ public boolean isLong() { return (val instanceof Long || val instanceof Integer); } /** * Returns the string representing the object */ public String toString() { if (val == null) return "null"; if (val instanceof Long || val instanceof Integer) { return Long.toString(val.longValue()); } double d = val.doubleValue(); if (Double.isInfinite(d)) return (d > 0) ? "(1.0 / 0.0)" : "(-1.0 / 0.0)"; if (Double.isNaN(d)) return "(0.0 / 0.0)"; return Double.toString(d); } /** * Applies the ValueExp on a MBean. * * @param name The name of the MBean on which the ValueExp will be applied. * * @return The <CODE>ValueExp</CODE>. * * @exception BadStringOperationException * @exception BadBinaryOpValueExpException * @exception BadAttributeValueExpException * @exception InvalidApplicationException */ public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException, BadAttributeValueExpException, InvalidApplicationException { return this; } /** * Deserializes a {@link NumericValueExp} from an {@link ObjectInputStream}. */ private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException { if (compat) { // Read an object serialized in the old serial form // double doubleVal; long longVal; boolean isLong; ObjectInputStream.GetField fields = in.readFields(); doubleVal = fields.get("doubleVal", (double)0); if (fields.defaulted("doubleVal")) { throw new NullPointerException("doubleVal"); } longVal = fields.get("longVal", (long)0); if (fields.defaulted("longVal")) { throw new NullPointerException("longVal"); } isLong = fields.get("valIsLong", false); if (fields.defaulted("valIsLong")) { throw new NullPointerException("valIsLong"); } if (isLong) { this.val = longVal; } else { this.val = doubleVal; } } else { // Read an object serialized in the new serial form // in.defaultReadObject(); } } /** * Serializes a {@link NumericValueExp} 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("doubleVal", doubleValue()); fields.put("longVal", longValue()); fields.put("valIsLong", isLong()); out.writeFields(); } else { // Serializes this instance in the new serial form // out.defaultWriteObject(); } } @Deprecated public void setMBeanServer(MBeanServer s) { super.setMBeanServer(s); } }
/*
* Copyright (c) 1999, 2008, 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.
*/
package javax.management;
import com.sun.jmx.mbeanserver.GetPropertyAction;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamField;
import java.security.AccessController;
/**
* This class represents numbers that are arguments to relational constraints.
* A NumericValueExp may be used anywhere a ValueExp is required.
*
* <p>The <b>serialVersionUID</b> of this class is <code>-4679739485102359104L</code>.
*
* @serial include
*
* @since 1.5
*/
@SuppressWarnings("serial") // serialVersionUID not constant
class NumericValueExp extends QueryEval implements ValueExp {
// 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 = -6227876276058904000L;
//
// Serial version for new serial form
private static final long newSerialVersionUID = -4679739485102359104L;
//
// Serializable fields in old serial form
private static final ObjectStreamField[] oldSerialPersistentFields =
{
new ObjectStreamField("longVal", Long.TYPE),
new ObjectStreamField("doubleVal", Double.TYPE),
new ObjectStreamField("valIsLong", Boolean.TYPE)
};
//
// Serializable fields in new serial form
private static final ObjectStreamField[] newSerialPersistentFields =
{
new ObjectStreamField("val", Number.class)
};
//
// Actual serial version and serial form
private static final long serialVersionUID;
/**
* @serialField val Number The numeric value
*
* <p>The <b>serialVersionUID</b> of this class is <code>-4679739485102359104L</code>.
*/
private static final ObjectStreamField[] serialPersistentFields;
private Number val = 0.0;
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: exception means no compat with 1.0, too bad
}
if (compat) {
serialPersistentFields = oldSerialPersistentFields;
serialVersionUID = oldSerialVersionUID;
} else {
serialPersistentFields = newSerialPersistentFields;
serialVersionUID = newSerialVersionUID;
}
}
//
// END Serialization compatibility stuff
/**
* Basic constructor.
*/
public NumericValueExp() {
}
/** Creates a new NumericValue representing the numeric literal <val>.*/
NumericValueExp(Number val)
{
this.val = val;
}
/**
* Returns a double numeric value
*/
public double doubleValue() {
if (val instanceof Long || val instanceof Integer)
{
return (double)(val.longValue());
}
return val.doubleValue();
}
/**
* Returns a long numeric value
*/
public long longValue() {
if (val instanceof Long || val instanceof Integer)
{
return val.longValue();
}
return (long)(val.doubleValue());
}
/**
* Returns true is if the numeric value is a long, false otherwise.
*/
public boolean isLong() {
return (val instanceof Long || val instanceof Integer);
}
/**
* Returns the string representing the object
*/
public String toString() {
if (val == null)
return "null";
if (val instanceof Long || val instanceof Integer)
{
return Long.toString(val.longValue());
}
double d = val.doubleValue();
if (Double.isInfinite(d))
return (d > 0) ? "(1.0 / 0.0)" : "(-1.0 / 0.0)";
if (Double.isNaN(d))
return "(0.0 / 0.0)";
return Double.toString(d);
}
/**
* Applies the ValueExp on a MBean.
*
* @param name The name of the MBean on which the ValueExp will be applied.
*
* @return The <CODE>ValueExp</CODE>.
*
* @exception BadStringOperationException
* @exception BadBinaryOpValueExpException
* @exception BadAttributeValueExpException
* @exception InvalidApplicationException
*/
public ValueExp apply(ObjectName name)
throws BadStringOperationException, BadBinaryOpValueExpException,
BadAttributeValueExpException, InvalidApplicationException {
return this;
}
/**
* Deserializes a {@link NumericValueExp} from an {@link ObjectInputStream}.
*/
private void readObject(ObjectInputStream in)
throws IOException, ClassNotFoundException {
if (compat)
{
// Read an object serialized in the old serial form
//
double doubleVal;
long longVal;
boolean isLong;
ObjectInputStream.GetField fields = in.readFields();
doubleVal = fields.get("doubleVal", (double)0);
if (fields.defaulted("doubleVal"))
{
throw new NullPointerException("doubleVal");
}
longVal = fields.get("longVal", (long)0);
if (fields.defaulted("longVal"))
{
throw new NullPointerException("longVal");
}
isLong = fields.get("valIsLong", false);
if (fields.defaulted("valIsLong"))
{
throw new NullPointerException("valIsLong");
}
if (isLong)
{
this.val = longVal;
}
else
{
this.val = doubleVal;
}
}
else
{
// Read an object serialized in the new serial form
//
in.defaultReadObject();
}
}
/**
* Serializes a {@link NumericValueExp} 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("doubleVal", doubleValue());
fields.put("longVal", longValue());
fields.put("valIsLong", isLong());
out.writeFields();
}
else
{
// Serializes this instance in the new serial form
//
out.defaultWriteObject();
}
}
@Deprecated
public void setMBeanServer(MBeanServer s) {
super.setMBeanServer(s);
}
}