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jeremybenn |
/* DemoServant.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.classpath.examples.CORBA.SimpleCommunication.communication;
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import org.omg.CORBA.BAD_OPERATION;
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import org.omg.CORBA.ByteHolder;
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import org.omg.CORBA.CompletionStatus;
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import org.omg.CORBA.DoubleHolder;
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import org.omg.CORBA.ShortHolder;
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import org.omg.CORBA.StringHolder;
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/**
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* This class handles the actual server functionality in this test
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* application. When the client calls the remote method, this
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* finally results calling the method of this class.
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*
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* The parameters, passed to the server only, are just parameters of the
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* java methods. The parameters that shuld be returned to client
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* are wrapped into holder classes.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class DemoServant
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extends _DemoTesterImplBase
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{
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/**
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* The field, that can be set and checked by remote client.
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*/
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private int m_theField = 17;
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/**
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* Passes wide (UTF-16) string and narrow (ISO8859_1) string.
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* @see gnu.CORBA.GIOP.CharSets_OSF for supported and default
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* encodings. Returs they generalization as a wide string.
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*/
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public String passCharacters(String wide, String narrow)
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{
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System.out.println("SERVER: **** Wide and narrow string test.");
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System.out.println("SERVER: Received '" + narrow + "' and '" + wide +
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"'"
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);
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return "return '" + narrow + "' and '" + wide + "'";
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}
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/**
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* Accept and return parameters, having various types.
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*/
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public int passSimple(ByteHolder an_octet, int a_long, ShortHolder a_short,
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StringHolder a_string, DoubleHolder a_double
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)
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{
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System.out.println("SERVER: ***** Test passing multiple parameters");
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System.out.println("SERVER: Received:");
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System.out.println("SERVER: octet " + an_octet.value);
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System.out.println("SERVER: short " + a_short.value);
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System.out.println("SERVER: string " + a_string.value);
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// Returning incremented values.
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an_octet.value++;
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a_short.value++;
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// OUT parameter, return only.
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a_double.value = 1;
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a_string.value += " [return]";
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return 452572;
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}
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/**
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* Accept and return the string arrays.
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*/
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public String[] passStrings(String[] args)
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{
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System.out.println("SERVER: ***** Transferring string arrays");
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String[] rt = new String[ args.length ];
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for (int i = 0; i < args.length; i++)
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{
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System.out.println("SERVER: " + args [ i ]);
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// Returning the changed content.
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rt [ i ] = args [ i ] + ":" + args [ i ];
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}
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return rt;
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}
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/**
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* Accept and return the structures.
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*/
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public StructureToReturn passStructure(StructureToPass in_structure)
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{
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System.out.println("SERVER: ***** Transferring structures");
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System.out.println("SERVER: Received " + in_structure.a + ":" +
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in_structure.b
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);
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// Create and send back the returned structure.
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StructureToReturn r = new StructureToReturn();
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r.c = in_structure.a + in_structure.b;
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r.n = 555;
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r.arra = new int[] { 11, 22, 33 };
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return r;
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}
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/**
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* Pass and return the tree structure
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*/
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public void passTree(TreeNodeHolder tree)
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{
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System.out.println("SERVER: ***** Transferring tree");
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StringBuilder b = new StringBuilder();
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// This both creates the tree string representation
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// and changes the TreeNode names.
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getImage(b, tree.value);
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System.out.println("SERVER: The tree was: " + b + ", returning changed.");
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}
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/**
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* Just prints the hello message.
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*/
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public void sayHello()
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{
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System.out.println("SERVER: ***** Hello, world!");
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}
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/**
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* Get the value of our field.
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*/
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public int theField()
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{
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System.out.println("SERVER: ***** Getting the field value, " + m_theField);
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return m_theField;
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}
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/**
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* Set the value of our field.
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*/
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public void theField(int a_field)
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{
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System.out.println("SERVER: ***** Setting the field value to " + a_field);
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m_theField = a_field;
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}
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/**
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* Throw an exception.
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*
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* @param parameter specifies which exception will be thrown.
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*
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* @throws WeThrowThisException for the non negative parameter.
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* @throws BAD_OPERATION for the negative parameter.
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*/
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public void throwException(int parameter)
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throws WeThrowThisException
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{
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System.out.println("SERVER: ***** Testing exceptions");
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if (parameter > 0)
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{
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System.out.println("SERVER: Throwing the user exception, " +
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"specific field = "+parameter
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);
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throw new WeThrowThisException(parameter);
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}
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else
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{
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System.out.println("SERVER: Throwing " +
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"the BAD_OPERATION, minor 456, completed"
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);
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throw new BAD_OPERATION(456, CompletionStatus.COMPLETED_YES);
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}
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}
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/**
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* Visit all tree nodes, getting the string representation
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* and adding '++' to the TreeNode names.
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*
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* @param b the buffer to collect the string representation.
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* @param n the rott tree TreeNode.
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*/
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private void getImage(StringBuilder b, TreeNode n)
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{
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b.append(n.name);
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n.name = n.name + "++";
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b.append(": (");
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for (int i = 0; i < n.children.length; i++)
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{
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getImage(b, n.children [ i ]);
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b.append(' ');
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}
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b.append(") ");
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}
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}
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