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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/examples/gnu/classpath/examples/CORBA/SimpleCommunication/communication/RequestTest.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/examples/gnu/classpath/examples/CORBA/SimpleCommunication/communication/RequestTest.java | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/examples/gnu/classpath/examples/CORBA/SimpleCommunication/communication/RequestTest.java b/gcc-4.4.3/libjava/classpath/examples/gnu/classpath/examples/CORBA/SimpleCommunication/communication/RequestTest.java new file mode 100644 index 000000000..9c908e520 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/examples/gnu/classpath/examples/CORBA/SimpleCommunication/communication/RequestTest.java @@ -0,0 +1,284 @@ +/* RequestTest.java -- + Copyright (C) 2005 Free Software Foundation, Inc. + + This file is part of GNU Classpath. + + GNU Classpath is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GNU Classpath 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 for more details. + + You should have received a copy of the GNU General Public License + along with GNU Classpath; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. + + Linking this library statically or dynamically with other modules is + making a combined work based on this library. Thus, the terms and + conditions of the GNU General Public License cover the whole + combination. + + As a special exception, the copyright holders of this library give you + permission to link this library with independent modules to produce an + executable, regardless of the license terms of these independent + modules, and to copy and distribute the resulting executable under + terms of your choice, provided that you also meet, for each linked + independent module, the terms and conditions of the license of that + module. An independent module is a module which is not derived from + or based on this library. If you modify this library, you may extend + this exception to your version of the library, but you are not + obligated to do so. If you do not wish to do so, delete this + exception statement from your version. */ + + +package gnu.classpath.examples.CORBA.SimpleCommunication.communication; + +import java.io.File; +import java.io.FileReader; +import java.io.IOException; + +import org.omg.CORBA.BAD_OPERATION; +import org.omg.CORBA.ExceptionList; +import org.omg.CORBA.NVList; +import org.omg.CORBA.ORB; +import org.omg.CORBA.Request; +import org.omg.CORBA.TCKind; +import org.omg.CORBA.UnknownUserException; + +/** + * This code uses CORBA to call various methods of the remote object, + * passing data structures in both directions. It finds the server by + * reading the IOR.txt file that must be present in the folder, + * where the program has been started. + * + * The IOR.txt file is written by the server + * {@link gnu.classpath.examples.CORBA.SimpleCommunication.DemoServer}. + * The server should be reachable over Internet, unless blocked by + * security tools. + * + * This code is tested for interoperability with Sun Microsystems + * java implementation 1.4.2 (08.b03). Server, client of both can + * be started either on Sun's or on Classpath CORBA implementation, + * in any combinations. + * + * BE SURE TO START THE SERVER BEFORE STARTING THE CLIENT. + * + * Test invocations using org.omg.CORBA.Request. The methods are + * called by "name", like in java.lang.reflect. + * No need to have the local pre-compiled stub classes. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +public class RequestTest +{ + /* + * The IOR.txt file, used to find the server and the object on the server. is written when starting the accompanying + */ + public static final String IOR_FILE = "IOR.txt"; + + /** + * The Object Request Brocker, used for various CORBA operations. + */ + ORB orb; + + /** + * Our remote object - the invocation target. + */ + org.omg.CORBA.Object object; + + /** + * Prepare for work. Read the file IOR.txt in the current folder + * and find the server using its information. + */ + public static void main(String[] args) + { + RequestTest we = new RequestTest(); + + we.orb = org.omg.CORBA.ORB.init(new String[ 0 ], null); + + char[] c = null; + try + { + File f = new File(IOR_FILE); + c = new char[ (int) f.length() ]; + + FileReader fr = new FileReader(f); + fr.read(c); + fr.close(); + } + catch (IOException ex) + { + System.out.println("Unable to write the IOR.txt into the current folder"); + ex.printStackTrace(); + } + + String ior = new String(c); + + we.object = we.orb.string_to_object(ior); + we.Demo(); + we.orb.shutdown(false); + } + + /** Run all demos. */ + public void Demo() + { + testHello(); + try + { + testParameters(); + } + catch (Exception ex) + { + // Not expected. + throw new InternalError(); + } + testSystemException(); + testWideNarrowStrings(); + } + + /** + * Send the hello message, one way. + */ + public void testHello() + { + System.out.println("***** Test 'HELLO WORLD' (see the server console)."); + + Request hello = + object._create_request(null, "sayHello", orb.create_list(0), null); + + // No response expected. + hello.send_oneway(); + } + + /** + * Test passing various parameters in both directions. + */ + public void testParameters() + throws Exception + { + System.out.println("***** Test passing multiple parameters:"); + + Request r = + object._create_request(null, "passSimple", orb.create_list(0), null); + + r.add_inout_arg().insert_octet((byte) 0); + r.add_in_arg().insert_long(2); + r.add_inout_arg().insert_short((short) 3); + r.add_inout_arg().insert_string("[string 4]"); + r.add_out_arg().type(orb.get_primitive_tc(TCKind.tk_double)); + + NVList para = r.arguments(); + + System.out.println(" --- Parameters before invocation: "); + + System.out.println(" octet " + para.item(0).value().extract_octet()); + System.out.println(" long (in parameter) " + + para.item(1).value().extract_long() + ); + System.out.println(" short " + para.item(2).value().extract_short()); + System.out.println(" string " + para.item(3).value().extract_string()); + + // For the last parameter, the value is not set. + r.set_return_type(orb.get_primitive_tc(TCKind.tk_long)); + + r.invoke(); + + para = r.arguments(); + + System.out.println(" --- Parameters after invocation:"); + + System.out.println(" octet " + para.item(0).value().extract_octet()); + System.out.println(" long (in parameter, must not be changed) " + + para.item(1).value().extract_long() + ); + System.out.println(" short " + para.item(2).value().extract_short()); + System.out.println(" string " + para.item(3).value().extract_string()); + System.out.println(" double " + para.item(4).value().extract_double()); + + System.out.println(" Returned value " + r.result().value().extract_long()); + } + + /** + * Test catching the system exception, thrown on the remote side. + */ + public void testSystemException() + { + System.out.println("**** Test system exception:"); + try + { + ExceptionList exList = orb.create_exception_list(); + exList.add(WeThrowThisExceptionHelper.type()); + + Request rq = + object._create_request(null, "throwException", orb.create_list(1), + null, exList, null + ); + + rq.add_in_arg().insert_long(-55); + + rq.invoke(); + + throw new InternalError(); + } + catch (BAD_OPERATION ex) + { + System.out.println(" The expected BAD_OPERATION, minor code " + + ex.minor + ", has been thrown on remote side." + ); + } + } + + /** + * Test catching the user exception, thrown on the remote side. + */ + public void testUserException() + { + System.out.println("**** Test user exception:"); + + ExceptionList exList = orb.create_exception_list(); + exList.add(WeThrowThisExceptionHelper.type()); + + Request rq = + object._create_request(null, "throwException", orb.create_list(1), null, + exList, null + ); + + rq.add_in_arg().insert_long(123); + rq.invoke(); + + UnknownUserException uku = (UnknownUserException) rq.env().exception(); + WeThrowThisException our_exception = WeThrowThisExceptionHelper.extract(uku.except); + + System.out.println(" Our user exception, field " + our_exception.ourField + + ", has been thrown on remote side." + ); + } + + /** + * Passes wide (UTF-16) string and narrow (ISO8859_1) string. + * @see gnu.CORBA.GIOP.CharSets_OSF for supported and default + * encodings. + */ + public void testWideNarrowStrings() + throws BAD_OPERATION + { + System.out.println("**** Test 8 bit and 16 bit char strings"); + + Request rq = + object._create_request(null, "passCharacters", orb.create_list(0), null); + + rq.add_in_arg().insert_wstring("wide string"); + rq.add_in_arg().insert_string("narrow string"); + + rq.set_return_type(orb.get_primitive_tc(TCKind.tk_wstring)); + + rq.invoke(); + + System.out.println(" Returned ' " + rq.result().value().extract_wstring()); + } +} |