1/* 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.sun.corba.se.impl.orb ; 27 28import org.omg.CORBA.INITIALIZE ; 29 30import java.util.Properties ; 31import java.util.List ; 32import java.util.LinkedList ; 33import java.util.Iterator ; 34 35import java.lang.reflect.Array ; 36 37import com.sun.corba.se.spi.orb.Operation ; 38import com.sun.corba.se.spi.orb.StringPair ; 39import com.sun.corba.se.spi.logging.CORBALogDomains ; 40 41import com.sun.corba.se.impl.orbutil.ObjectUtility ; 42import com.sun.corba.se.impl.logging.ORBUtilSystemException ; 43 44public class PrefixParserAction extends ParserActionBase { 45 private Class componentType ; 46 private ORBUtilSystemException wrapper ; 47 48 public PrefixParserAction( String propertyName, 49 Operation operation, String fieldName, Class componentType ) 50 { 51 super( propertyName, true, operation, fieldName ) ; 52 this.componentType = componentType ; 53 this.wrapper = ORBUtilSystemException.get( 54 CORBALogDomains.ORB_LIFECYCLE ) ; 55 } 56 57 /** For each String s that matches the prefix given by getPropertyName(), 58 * apply getOperation() to { suffix( s ), value } 59 * and add the result to an Object[] 60 * which forms the result of apply. Returns null if there are no 61 * matches. 62 */ 63 public Object apply( Properties props ) 64 { 65 String prefix = getPropertyName() ; 66 int prefixLength = prefix.length() ; 67 if (prefix.charAt( prefixLength - 1 ) != '.') { 68 prefix += '.' ; 69 prefixLength++ ; 70 } 71 72 List matches = new LinkedList() ; 73 74 // Find all keys in props that start with propertyName 75 Iterator iter = props.keySet().iterator() ; 76 while (iter.hasNext()) { 77 String key = (String)(iter.next()) ; 78 if (key.startsWith( prefix )) { 79 String suffix = key.substring( prefixLength ) ; 80 String value = props.getProperty( key ) ; 81 StringPair data = new StringPair( suffix, value ) ; 82 Object result = getOperation().operate( data ) ; 83 matches.add( result ) ; 84 } 85 } 86 87 int size = matches.size() ; 88 if (size > 0) { 89 // Convert the list into an array of the proper type. 90 // An Object[] as a result does NOT work. Also report 91 // any errors carefully, as errors here or in parsers that 92 // use this Operation often show up at ORB.init(). 93 Object result = null ; 94 try { 95 result = Array.newInstance( componentType, size ) ; 96 } catch (Throwable thr) { 97 throw wrapper.couldNotCreateArray( thr, 98 getPropertyName(), componentType, 99 new Integer( size ) ) ; 100 } 101 102 Iterator iter2 = matches.iterator() ; 103 int ctr = 0 ; 104 while (iter2.hasNext()) { 105 Object obj = iter2.next() ; 106 107 try { 108 Array.set( result, ctr, obj ) ; 109 } catch (Throwable thr) { 110 throw wrapper.couldNotSetArray( thr, 111 getPropertyName(), new Integer(ctr), 112 componentType, new Integer(size), 113 obj.toString() ) ; 114 } 115 ctr++ ; 116 } 117 118 return result ; 119 } else 120 return null ; 121 } 122} 123