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/* * @(#)RoleResult.java 1.27 05/12/01 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.management.relation; import java.util.Iterator; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.ObjectStreamField; import java.io.Serializable; import java.security.AccessController; import java.security.PrivilegedAction; import com.sun.jmx.mbeanserver.GetPropertyAction; /** * Represents the result of a multiple access to several roles of a relation * (either for reading or writing). * * <p>The <b>serialVersionUID</b> of this class is <code>-6304063118040985512L</code>. * * @since 1.5 */ public class RoleResult implements Serializable { // 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 = 3786616013762091099L; // // Serial version for new serial form private static final long newSerialVersionUID = -6304063118040985512L; // // Serializable fields in old serial form private static final ObjectStreamField[] oldSerialPersistentFields = { new ObjectStreamField("myRoleList", RoleList.class), new ObjectStreamField("myRoleUnresList", RoleUnresolvedList.class) }; // // Serializable fields in new serial form private static final ObjectStreamField[] newSerialPersistentFields = { new ObjectStreamField("roleList", RoleList.class), new ObjectStreamField("unresolvedRoleList", RoleUnresolvedList.class) }; // // Actual serial version and serial form private static final long serialVersionUID; /** * @serialField roleList RoleList List of roles successfully accessed * @serialField unresolvedRoleList RoleUnresolvedList List of roles unsuccessfully accessed */ 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 : Too bad, no compat with 1.0 } if (compat) { serialPersistentFields = oldSerialPersistentFields; serialVersionUID = oldSerialVersionUID; } else { serialPersistentFields = newSerialPersistentFields; serialVersionUID = newSerialVersionUID; } } // // END Serialization compatibility stuff // // Private members // /** * @serial List of roles successfully accessed */ private RoleList roleList = null; /** * @serial List of roles unsuccessfully accessed */ private RoleUnresolvedList unresolvedRoleList = null; // // Constructor // /** * Constructor. * * @param list list of roles successfully accessed. * @param unresolvedList list of roles not accessed (with problem * descriptions). */ public RoleResult(RoleList list, RoleUnresolvedList unresolvedList) { setRoles(list); setRolesUnresolved(unresolvedList); return; } // // Accessors // /** * Retrieves list of roles successfully accessed. * * @return a RoleList * * @see #setRoles */ public RoleList getRoles() { return roleList; } /** * Retrieves list of roles unsuccessfully accessed. * * @return a RoleUnresolvedList. * * @see #setRolesUnresolved */ public RoleUnresolvedList getRolesUnresolved() { return unresolvedRoleList; } /** * Sets list of roles successfully accessed. * * @param list list of roles successfully accessed * * @see #getRoles */ public void setRoles(RoleList list) { if (list != null) { roleList = new RoleList(); for (Iterator roleIter = list.iterator(); roleIter.hasNext();) { Role currRole = (Role)(roleIter.next()); roleList.add((Role)(currRole.clone())); } } else { roleList = null; } return; } /** * Sets list of roles unsuccessfully accessed. * * @param unresolvedList list of roles unsuccessfully accessed * * @see #getRolesUnresolved */ public void setRolesUnresolved(RoleUnresolvedList unresolvedList) { if (unresolvedList != null) { unresolvedRoleList = new RoleUnresolvedList(); for (Iterator roleUnresIter = unresolvedList.iterator(); roleUnresIter.hasNext();) { RoleUnresolved currRoleUnres = (RoleUnresolved)(roleUnresIter.next()); unresolvedRoleList.add((RoleUnresolved)(currRoleUnres.clone())); } } else { unresolvedRoleList = null; } return; } /** * Deserializes a {@link RoleResult} from an {@link ObjectInputStream}. */ private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException { if (compat) { // Read an object serialized in the old serial form // ObjectInputStream.GetField fields = in.readFields(); roleList = (RoleList) fields.get("myRoleList", null); if (fields.defaulted("myRoleList")) { throw new NullPointerException("myRoleList"); } unresolvedRoleList = (RoleUnresolvedList) fields.get("myRoleUnresList", null); if (fields.defaulted("myRoleUnresList")) { throw new NullPointerException("myRoleUnresList"); } } else { // Read an object serialized in the new serial form // in.defaultReadObject(); } } /** * Serializes a {@link RoleResult} 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("myRoleList", roleList); fields.put("myRoleUnresList", unresolvedRoleList); out.writeFields(); } else { // Serializes this instance in the new serial form // out.defaultWriteObject(); } } }