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1 /*
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2 * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 */
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23
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24 package sun.jvm.hotspot.utilities.soql;
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25
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26 import java.util.Map;
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27 import java.util.HashMap;
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28 import java.util.Collections;
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29 import java.lang.reflect.Method;
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30 import java.lang.reflect.Constructor;
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31 import javax.script.Invocable;
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32
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33 /**
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34 * Simple implementation of ScriptObject interface
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35 * with property storage backed by a Map. This class
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36 * can be extended to override any of the methods, in
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37 * particular to add "function" valued properties.
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38 */
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39 public class MapScriptObject implements ScriptObject {
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40 // map to store the properties
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41 private Map map;
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42
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43 public MapScriptObject() {
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44 this(new HashMap());
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45 }
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46
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47 public MapScriptObject(Map map) {
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48 // make it synchronized
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49 this.map = Collections.synchronizedMap(map);
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50 }
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51
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52 public Object[] getIds() {
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53 return map.keySet().toArray();
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54 }
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55
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56 public Object get(String name) {
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57 if (has(name)) {
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58 return map.get(name);
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59 } else {
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60 return UNDEFINED;
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61 }
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62 }
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63
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64 public Object get(int index) {
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65 if (has(index)) {
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66 Object key = Integer.valueOf(index);
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67 return map.get(key);
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68 } else {
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69 return UNDEFINED;
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70 }
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71 }
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72
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73 public void put(String name, Object value) {
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74 map.put(name, value);
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75 }
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76
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77 public void put(int index, Object value) {
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78 map.put(Integer.valueOf(index), value);
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79 }
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80
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81 public boolean has(String name) {
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82 return map.containsKey(name);
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83 }
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84
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85 public boolean has(int index) {
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86 return map.containsKey(Integer.valueOf(index));
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87 }
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88
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89 public boolean delete(String name) {
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90 if (map.containsKey(name)) {
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91 map.remove(name);
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92 return true;
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93 } else {
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94 return false;
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95 }
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96 }
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97
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98 public boolean delete(int index) {
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99 Object key = Integer.valueOf(index);
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100 if (map.containsKey(key)) {
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101 map.remove(key);
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102 return true;
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103 } else {
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104 return false;
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105 }
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106 }
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107
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108 // add a function valued property that invokes given Method
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109 protected void putFunction(Object target, Method method) {
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110 putFunction(target, method, true);
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111 }
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112
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113 // add a function valued property that invokes given Method
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114 protected void putFunction(Object target, Method method, boolean wrapArgs) {
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115 map.put(method.getName(), new MethodCallable(target, method, wrapArgs));
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116 }
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117
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118 // add a function valued property that invokes given script function
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119 protected void putFunction(Object target, String name, Invocable invocable) {
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120 map.put(name, new InvocableCallable(target, name, invocable));
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121 }
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122 }
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