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1: /* RequestHeader.java -- The GIOP 1.0 request message. 2: Copyright (C) 2005 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.CORBA.GIOP.v1_0; 40: 41: import gnu.CORBA.CDR.AbstractCdrInput; 42: import gnu.CORBA.CDR.AbstractCdrOutput; 43: import gnu.CORBA.GIOP.ServiceContext; 44: import gnu.CORBA.GIOP.CodeSetServiceContext; 45: 46: import org.omg.CORBA.portable.IDLEntity; 47: 48: /** 49: * The GIOP 1.0 request message. 50: * 51: * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) 52: */ 53: public class RequestHeader 54: extends gnu.CORBA.GIOP.RequestHeader 55: implements IDLEntity 56: { 57: /** 58: * Creates an empty request header, setting requesting principal 59: * to byte[] { 'P' }. 60: */ 61: public RequestHeader() 62: { 63: requesting_principal = new byte[] { 'P' }; 64: } 65: 66: /** 67: * Set if the sender expects any response to this message. 68: */ 69: public void setResponseExpected(boolean expected) 70: { 71: response_expected = expected; 72: } 73: 74: /** 75: * Return true if response is expected. 76: */ 77: public boolean isResponseExpected() 78: { 79: return response_expected; 80: } 81: 82: public String bytes(byte[] array) 83: { 84: StringBuffer b = new StringBuffer(); 85: for (int i = 0; i < array.length; i++) 86: { 87: b.append(Integer.toHexString(array [ i ] & 0xFF)); 88: b.append(" "); 89: } 90: return b.toString(); 91: } 92: 93: /** 94: * Get the string representation of all included contexts. 95: */ 96: public String contexts() 97: { 98: StringBuffer b = new StringBuffer(); 99: for (int i = 0; i < service_context.length; i++) 100: { 101: b.append(service_context [ i ].toString()); 102: b.append(' '); 103: } 104: return b.toString(); 105: } 106: 107: /** 108: * Reads the header from the stream. 109: * 110: * Sets the code set of this stream to 111: * the code set, specfied in the header. 112: * 113: * @param in a stream to read from. 114: */ 115: public void read(AbstractCdrInput in) 116: { 117: service_context = ServiceContext.readSequence(in); 118: request_id = in.read_ulong(); 119: response_expected = in.read_boolean(); 120: object_key = in.read_sequence(); 121: operation = in.read_string(); 122: requesting_principal = in.read_sequence(); 123: 124: in.setCodeSet(CodeSetServiceContext.find(service_context)); 125: } 126: 127: /** 128: * Return a string representation. 129: */ 130: public String toString() 131: { 132: return "Request " + request_id + ", call '" + operation + "' on " + 133: bytes(object_key) + ", " + 134: (response_expected ? "wait response" : "one way") + ", from " + 135: bytes(requesting_principal) + contexts(); 136: } 137: 138: /** 139: * Writes the header to the stream. 140: * 141: * Sets the code set of this stream to 142: * the code set, specfied in the header. 143: * 144: * @param out a stream to write into. 145: */ 146: public void write(AbstractCdrOutput out) 147: { 148: ServiceContext.writeSequence(out, service_context); 149: out.write_ulong(request_id); 150: out.write_boolean(response_expected); 151: out.write_sequence(object_key); 152: out.write_string(operation); 153: out.write_sequence(requesting_principal); 154: 155: out.setCodeSet(CodeSetServiceContext.find(service_context)); 156: } 157: }