Initial revision
From-SVN: r102074
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Tom Tromey
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/* _PolicyImplBase.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA;
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import org.omg.CORBA.BAD_OPERATION;
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import org.omg.CORBA.CompletionStatus;
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import org.omg.CORBA.Policy;
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import org.omg.CORBA.PolicyHelper;
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import org.omg.CORBA.portable.InputStream;
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import org.omg.CORBA.portable.InvokeHandler;
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import org.omg.CORBA.portable.ObjectImpl;
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import org.omg.CORBA.portable.OutputStream;
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import org.omg.CORBA.portable.ResponseHandler;
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/**
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* The server side implementation base for the {@link Policy}.
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*
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* @specnote The java 1.4 API does not define the server side policy
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* implementation base, but it defines the policy client side stub.
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* As these two classes always work together, and even no separate testing is
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* possible, the required implementation base is provided in gnu.CORBA
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* namespace. Sun will probably include they base in the future java APIs.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public abstract class _PolicyImplBase
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extends ObjectImpl
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implements Policy, InvokeHandler
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{
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/**
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* Use serialVersionUID for interoperability.
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*/
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private static final long serialVersionUID = 1;
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/**
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* The policy repository ids.
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*/
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private final String[] ids;
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/**
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* The type of this policy.
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*/
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private final int type;
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/**
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* The value of this policy. The value object is never the same
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* for different policies.
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*/
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private final java.lang.Object value;
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/**
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* The policy integer code, written in request to write
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* the policy value.
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*/
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private final int policyCode;
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/**
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* Create the new policy of the given type, having the given value.
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* For security reasons, the method is kept package private.
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*
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* @param p_type the type of this policy.
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* @param p_value the value of this policy.
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* @param p_code the integer code of this policy.
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* @param p_idl the policy IDL type string. The {@link #_ids()}
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* will return array, first line being this string and another
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* being PolicyHelper.id().
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*/
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public _PolicyImplBase(int p_type, java.lang.Object p_value, int p_code,
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String p_idl
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)
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{
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type = p_type;
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value = p_value;
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policyCode = p_code;
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ids = new String[] { p_idl, PolicyHelper.id() };
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}
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/**
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* Get the integer code of the type of this policy.
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*/
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public final int policy_type()
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{
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return type;
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}
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/**
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* Return the list of repository ids.
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*/
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public final String[] _ids()
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{
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return ids;
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}
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/**
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* Call the required method.
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*/
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public final OutputStream _invoke(String method, InputStream input,
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ResponseHandler rh
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)
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{
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OutputStream output = null;
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if (method.equals("destroy"))
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{
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// The "destroy" has been invoked.
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destroy();
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output = rh.createReply();
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}
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else if (method.equals("copy"))
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{
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// The "copy" has been invoked.
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org.omg.CORBA.Object returns = copy();
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output = rh.createReply();
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output.write_Object(this);
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}
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else if (method.equals("policy_type"))
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{
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// The "policy_type" has been invoked.
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int returns = policy_type();
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output = rh.createReply();
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output.write_long(returns);
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}
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else if (method.equals("value"))
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{
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// The "value" can be invoked on the children types
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// and must return an integer, representing the policy value
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// (CORBA enumeration).
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output = rh.createReply();
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output.write_long(policyCode);
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}
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else
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throw new BAD_OPERATION(method, 0, CompletionStatus.COMPLETED_MAYBE);
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return output;
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}
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/**
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* Get the value of this policy
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*/
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public final java.lang.Object getValue()
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{
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return value;
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}
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/**
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* Get the integer code of this policy value.
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*/
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public final int getCode()
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{
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return policyCode;
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}
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/**
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* Returns without action. It is a work of garbage collector
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* to remove the unused objects.
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*/
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public final void destroy()
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{
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}
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/**
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* Returns the string representation of the given policy.
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*/
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public final String toString()
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{
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return value.toString();
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}
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/**
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* Create a copy of this policy. The object is not mutable, so
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* <code>this</code> can be returned.
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*
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* @return <code>this</code>
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*/
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public Policy copy()
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{
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return this;
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}
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/**
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* Use the value to get a hash code.
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*/
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public int hashCode()
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{
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return getValue().hashCode();
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}
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/**
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* Check the values for equality.
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*/
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public boolean equals(Object x)
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{
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return x == null ? false : getValue().equals(x);
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}
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}
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