1 | /* |
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2 | * ---------------------------------------------------------------------- |
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3 | * RpObject.cc |
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4 | * |
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5 | * Rappture 2.0 Object member functions |
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6 | * |
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7 | * ====================================================================== |
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8 | * AUTHOR: Derrick Kearney, Purdue University |
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9 | * Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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10 | * |
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11 | * See the file "license.terms" for information on usage and |
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12 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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13 | * ====================================================================== |
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14 | */ |
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15 | |
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16 | #include "RpObject.h" |
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17 | #include "RpHashHelper.h" |
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18 | #include <cstring> |
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19 | |
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20 | using namespace Rappture; |
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21 | |
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22 | Object::Object() |
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23 | { |
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24 | __init(); |
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25 | } |
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26 | |
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27 | Object::Object ( |
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28 | const char *name, |
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29 | const char *path, |
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30 | const char *label, |
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31 | const char *desc, |
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32 | const char *hints, |
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33 | const char *color ) |
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34 | { |
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35 | this->name(name); |
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36 | this->path(path); |
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37 | this->label(label); |
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38 | this->desc(desc); |
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39 | this->hints(hints); |
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40 | this->color(color); |
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41 | } |
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42 | |
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43 | Object::Object(const Object& o) |
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44 | { |
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45 | name(o.name()); |
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46 | path(o.path()); |
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47 | label(o.label()); |
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48 | desc(o.desc()); |
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49 | hints(o.hints()); |
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50 | color(o.color()); |
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51 | // icon(o.icon()); |
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52 | |
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53 | if (o._h != NULL) { |
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54 | Rp_HashCopy(_h,o._h,charCpyFxn); |
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55 | } |
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56 | } |
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57 | |
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58 | Object::~Object() |
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59 | { |
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60 | __clear(); |
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61 | } |
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62 | |
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63 | const char* |
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64 | Object::name() const |
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65 | { |
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66 | return propstr("name"); |
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67 | } |
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68 | |
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69 | void |
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70 | Object::name(const char *p) |
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71 | { |
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72 | propstr("name",p); |
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73 | } |
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74 | |
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75 | const char* |
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76 | Object::path() const |
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77 | { |
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78 | return propstr("path"); |
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79 | } |
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80 | |
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81 | void |
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82 | Object::path(const char *p) |
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83 | { |
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84 | propstr("path",p); |
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85 | } |
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86 | |
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87 | const char* |
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88 | Object::label() const |
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89 | { |
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90 | return propstr("label"); |
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91 | } |
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92 | |
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93 | void |
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94 | Object::label( |
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95 | const char *p) |
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96 | { |
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97 | propstr("label",p); |
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98 | } |
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99 | |
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100 | const char* |
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101 | Object::desc() const |
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102 | { |
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103 | return propstr("desc"); |
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104 | } |
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105 | |
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106 | void |
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107 | Object::desc(const char *p) |
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108 | { |
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109 | propstr("desc",p); |
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110 | } |
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111 | |
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112 | const char* |
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113 | Object::hints() const |
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114 | { |
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115 | return propstr("hints"); |
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116 | } |
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117 | |
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118 | void |
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119 | Object::hints(const char *p) |
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120 | { |
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121 | propstr("hints",p); |
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122 | } |
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123 | |
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124 | const char* |
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125 | Object::color() const |
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126 | { |
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127 | return propstr("color"); |
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128 | } |
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129 | |
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130 | void |
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131 | Object::color(const char *p) |
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132 | { |
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133 | propstr("color",p); |
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134 | } |
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135 | |
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136 | // get a general property |
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137 | const void * |
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138 | Object::property(const char *key) const |
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139 | { |
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140 | if (key == NULL) { |
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141 | // no key to search for |
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142 | return NULL; |
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143 | } |
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144 | |
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145 | if (_h == NULL) { |
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146 | // hash table does not exist, value is not in table |
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147 | return NULL; |
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148 | } |
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149 | |
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150 | // get the value |
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151 | return Rp_HashSearchNode(_h,key); |
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152 | } |
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153 | |
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154 | // set a general property |
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155 | void |
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156 | Object::property(const char *key, const void *val, size_t nbytes) |
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157 | { |
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158 | if (key == NULL) { |
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159 | // no key for value |
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160 | return; |
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161 | } |
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162 | |
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163 | if (_h == NULL) { |
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164 | // hash table does not exist, create it |
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165 | _h = (Rp_HashTable*) malloc(sizeof(Rp_HashTable)); |
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166 | Rp_InitHashTable(_h,RP_STRING_KEYS); |
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167 | } |
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168 | |
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169 | // FIXME: this is suspect, |
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170 | // want to use void's and void*'s but c++ wont let me |
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171 | // g++ says there is no delete[] for void* |
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172 | void *tmp = new char[nbytes]; |
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173 | memcpy(tmp,val,nbytes); |
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174 | |
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175 | // set the value |
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176 | char *old = (char *) Rp_HashRemoveNode(_h,key); |
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177 | delete[] old; |
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178 | old = NULL; |
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179 | Rp_HashAddNode(_h,key,tmp); |
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180 | |
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181 | return; |
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182 | } |
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183 | |
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184 | // get a const char* property |
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185 | const char * |
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186 | Object::propstr(const char *key) const |
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187 | { |
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188 | if (key == NULL) { |
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189 | // no key for value |
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190 | return NULL; |
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191 | } |
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192 | |
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193 | if (_h == NULL) { |
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194 | // hash table does not exist, value does not exist in table |
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195 | return NULL; |
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196 | } |
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197 | |
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198 | // get the value |
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199 | return (const char *) Rp_HashSearchNode(_h,key); |
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200 | } |
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201 | |
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202 | // set a const char* property |
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203 | void |
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204 | Object::propstr(const char *key, const char *val) |
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205 | { |
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206 | char *str = NULL; |
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207 | |
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208 | if (key == NULL) { |
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209 | // no key for value |
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210 | return; |
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211 | } |
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212 | |
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213 | if (_h == NULL) { |
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214 | // hash table does not exist, create it |
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215 | _h = (Rp_HashTable*) malloc(sizeof(Rp_HashTable)); |
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216 | Rp_InitHashTable(_h,RP_STRING_KEYS); |
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217 | } |
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218 | |
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219 | if (val == NULL) { |
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220 | // no value provided, no value stored. |
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221 | // FIXME: raise error. |
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222 | return; |
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223 | } |
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224 | |
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225 | // set the value |
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226 | // FIXME: this is suspect, |
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227 | // want to use void's and void*'s but c++ wont let me |
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228 | // g++ says there is no delete[] for void* |
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229 | // FIXME: can probably just get the length and use property() fxn |
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230 | size_t l = strlen(val); |
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231 | str = new char[l+1]; |
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232 | strcpy(str,val); |
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233 | |
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234 | char *old = (char *) Rp_HashRemoveNode(_h,key); |
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235 | delete[] old; |
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236 | old = NULL; |
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237 | Rp_HashAddNode(_h,key,str); |
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238 | |
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239 | return; |
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240 | } |
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241 | |
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242 | // remove a property from the hash table |
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243 | void |
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244 | Object::propremove(const char *key) |
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245 | { |
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246 | if ((key == NULL) || (_h == NULL)) { |
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247 | // key or hash table does not exist |
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248 | return; |
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249 | } |
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250 | |
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251 | char *tmp = (char *) Rp_HashRemoveNode(_h,key); |
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252 | delete[] tmp; |
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253 | tmp = NULL; |
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254 | return; |
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255 | } |
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256 | |
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257 | void |
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258 | Object::__hintParser( |
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259 | char *hint, |
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260 | const char **hintKey, |
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261 | const char **hintVal) const |
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262 | { |
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263 | |
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264 | // hints are null terminated strings with a hint key |
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265 | // and hint value separated by an equal sign. |
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266 | // they take the following form: |
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267 | // hintKey=hintVal |
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268 | // this function does change the original hint string. |
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269 | |
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270 | char *v = NULL; |
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271 | |
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272 | if (hint == NULL) { |
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273 | return; |
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274 | } |
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275 | |
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276 | v = strchr(hint,'='); |
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277 | *hintKey = hint; |
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278 | if ((v == NULL) || (*v == '\0') || (*(v+1) == '\0')) { |
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279 | // incomplete hint string |
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280 | *hintVal = NULL; |
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281 | } else { |
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282 | *v = '\0'; |
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283 | *hintVal = v+1; |
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284 | } |
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285 | |
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286 | return; |
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287 | } |
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288 | |
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289 | void |
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290 | Object::vvalue(void *storage, size_t numHints, va_list arg) const |
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291 | { |
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292 | // bland objects take no hints |
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293 | char buf[1024]; |
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294 | char *hintCopy = NULL; |
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295 | size_t hintLen = 0; |
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296 | |
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297 | char *hint = NULL; |
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298 | const char *hintKey = NULL; |
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299 | const char *hintVal = NULL; |
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300 | |
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301 | while (numHints > 0) { |
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302 | numHints--; |
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303 | hint = va_arg(arg, char *); |
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304 | hintLen = strlen(hint); |
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305 | if (hintLen < 1024) { |
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306 | hintCopy = buf; |
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307 | } else { |
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308 | hintCopy = new char[hintLen+1]; |
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309 | } |
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310 | strcpy(hintCopy,hint); |
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311 | __hintParser(hintCopy,&hintKey,&hintVal); |
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312 | if (hintCopy != buf) { |
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313 | delete hintCopy; |
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314 | } |
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315 | } |
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316 | return; |
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317 | } |
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318 | |
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319 | void |
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320 | Object::random() |
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321 | { |
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322 | // bland objects cannot make random values |
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323 | return; |
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324 | } |
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325 | |
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326 | Rp_Chain * |
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327 | Object::diff(const Object &o) |
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328 | { |
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329 | return NULL; |
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330 | } |
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331 | |
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332 | void |
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333 | Object::__init() |
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334 | { |
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335 | _h = NULL; |
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336 | label(""); |
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337 | desc(""); |
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338 | hints(""); |
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339 | color(""); |
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340 | // icon(NULL); |
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341 | path(""); |
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342 | |
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343 | _tmpBuf.clear(); |
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344 | |
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345 | _h = (Rp_HashTable*) malloc(sizeof(Rp_HashTable)); |
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346 | Rp_InitHashTable(_h,RP_STRING_KEYS); |
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347 | } |
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348 | |
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349 | void |
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350 | Object::__clear() |
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351 | { |
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352 | _tmpBuf.clear(); |
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353 | |
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354 | // traverse the hash table to delete values, then delete hash table |
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355 | if (_h != NULL) { |
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356 | Rp_HashEntry *hEntry = NULL; |
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357 | Rp_HashSearch hSearch; |
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358 | |
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359 | hEntry = Rp_FirstHashEntry(_h,&hSearch); |
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360 | while (hEntry != NULL) { |
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361 | // FIXME: this is suspect, |
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362 | // want to use void's and void*'s but c++ wont let me |
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363 | // g++ says there is no delete[] for void* |
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364 | char *v = (char *) Rp_GetHashValue(hEntry); |
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365 | delete[] v; |
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366 | v = NULL; |
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367 | hEntry = Rp_NextHashEntry(&hSearch); |
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368 | } |
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369 | |
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370 | Rp_DeleteHashTable(_h); |
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371 | _h = NULL; |
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372 | } |
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373 | } |
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374 | |
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375 | /* |
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376 | const char * |
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377 | Object::xml(size_t indent, size_t tabstop) const |
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378 | { |
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379 | return NULL; |
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380 | } |
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381 | */ |
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382 | |
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383 | /* |
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384 | void |
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385 | Object::xml(const char *xmltext) |
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386 | { |
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387 | return; |
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388 | } |
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389 | */ |
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390 | |
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391 | /**********************************************************************/ |
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392 | // METHOD: configure(ClientData c) |
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393 | /// construct an object from the provided tree |
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394 | /** |
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395 | * construct an object from the provided tree |
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396 | */ |
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397 | |
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398 | void |
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399 | Object::configure(size_t as, ClientData c) |
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400 | { |
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401 | if (as == RPCONFIG_XML) { |
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402 | __configureFromXml(c); |
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403 | } else if (as == RPCONFIG_TREE) { |
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404 | __configureFromTree(c); |
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405 | } |
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406 | } |
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407 | |
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408 | /**********************************************************************/ |
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409 | // METHOD: configureFromXml(const char *xmltext) |
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410 | /// configure the object based on Rappture1.1 xmltext |
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411 | /** |
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412 | * Configure the object based on the provided xml |
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413 | */ |
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414 | |
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415 | void |
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416 | Object::__configureFromXml(ClientData c) |
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417 | { |
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418 | const char *xmltext = (const char *)c; |
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419 | if (xmltext == NULL) { |
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420 | // FIXME: setup error |
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421 | return; |
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422 | } |
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423 | |
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424 | Rp_ParserXml *p = Rp_ParserXmlCreate(); |
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425 | Rp_ParserXmlParse(p, xmltext); |
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426 | __configureFromTree(p); |
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427 | |
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428 | return; |
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429 | } |
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430 | |
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431 | void |
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432 | Object::__configureFromTree(ClientData c) |
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433 | { |
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434 | Rp_ParserXml *p = (Rp_ParserXml *)c; |
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435 | if (p == NULL) { |
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436 | // FIXME: setup error |
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437 | return; |
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438 | } |
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439 | |
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440 | Rp_TreeNode node = Rp_ParserXmlElement(p,NULL); |
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441 | |
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442 | Rappture::Path pathObj(Rp_ParserXmlNodePath(p,node)); |
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443 | |
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444 | path(pathObj.parent()); |
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445 | name(Rp_ParserXmlNodeId(p,node)); |
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446 | |
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447 | pathObj.clear(); |
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448 | pathObj.add("about"); |
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449 | pathObj.add("label"); |
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450 | label(Rp_ParserXmlGet(p,pathObj.path())); |
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451 | pathObj.type("description"); |
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452 | desc(Rp_ParserXmlGet(p,pathObj.path())); |
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453 | pathObj.type("hints"); |
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454 | hints(Rp_ParserXmlGet(p,pathObj.path())); |
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455 | pathObj.type("color"); |
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456 | color(Rp_ParserXmlGet(p,pathObj.path())); |
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457 | |
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458 | return; |
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459 | } |
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460 | |
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461 | /**********************************************************************/ |
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462 | // METHOD: dump(size_t as, void *p) |
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463 | /// construct a number object from the provided tree |
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464 | /** |
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465 | * construct a number object from the provided tree |
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466 | */ |
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467 | |
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468 | void |
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469 | Object::dump(size_t as, ClientData p) |
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470 | { |
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471 | if (as == RPCONFIG_XML) { |
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472 | __dumpToXml(p); |
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473 | } else if (as == RPCONFIG_TREE) { |
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474 | __dumpToTree(p); |
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475 | } |
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476 | } |
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477 | |
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478 | /**********************************************************************/ |
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479 | // METHOD: dumpToXml(ClientData p) |
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480 | /// configure the object based on Rappture1.1 xmltext |
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481 | /** |
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482 | * Configure the object based on the provided xml |
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483 | */ |
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484 | |
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485 | void |
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486 | Object::__dumpToXml(ClientData c) |
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487 | { |
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488 | if (c == NULL) { |
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489 | // FIXME: setup error |
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490 | return; |
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491 | } |
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492 | |
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493 | ClientDataXml *d = (ClientDataXml *)c; |
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494 | Rp_ParserXml *parser = Rp_ParserXmlCreate(); |
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495 | __dumpToTree(parser); |
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496 | _tmpBuf.appendf("%s",Rp_ParserXmlXml(parser)); |
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497 | d->retStr = _tmpBuf.bytes(); |
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498 | Rp_ParserXmlDestroy(&parser); |
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499 | } |
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500 | |
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501 | /**********************************************************************/ |
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502 | // METHOD: dumpToTree(ClientData p) |
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503 | /// dump the object to a Rappture1.1 based tree |
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504 | /** |
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505 | * Dump the object to a Rappture1.1 based tree |
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506 | */ |
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507 | |
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508 | void |
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509 | Object::__dumpToTree(ClientData c) |
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510 | { |
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511 | if (c == NULL) { |
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512 | // FIXME: setup error |
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513 | return; |
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514 | } |
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515 | |
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516 | Rp_ParserXml *parser = (Rp_ParserXml *)c; |
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517 | |
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518 | Path p; |
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519 | |
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520 | p.parent(path()); |
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521 | p.last(); |
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522 | |
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523 | p.add("object"); |
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524 | p.id(name()); |
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525 | |
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526 | p.add("about"); |
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527 | |
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528 | p.add("label"); |
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529 | Rp_ParserXmlPutF(parser,p.path(),"%s",label()); |
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530 | |
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531 | p.type("description"); |
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532 | Rp_ParserXmlPutF(parser,p.path(),"%s",desc()); |
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533 | |
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534 | p.type("hints"); |
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535 | Rp_ParserXmlPutF(parser,p.path(),"%s", hints()); |
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536 | |
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537 | p.type("color"); |
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538 | Rp_ParserXmlPutF(parser,p.path(),"%s", color()); |
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539 | |
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540 | return; |
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541 | } |
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542 | |
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543 | Outcome & |
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544 | Object::outcome() const |
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545 | { |
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546 | return _status; |
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547 | } |
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548 | |
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549 | const int |
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550 | Object::is() const |
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551 | { |
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552 | // return "var" in hex |
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553 | return 0x766172; |
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554 | } |
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555 | |
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556 | // -------------------------------------------------------------------- // |
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557 | |
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