1 | package com.framsticks.params; |
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2 | |
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3 | import java.util.LinkedList; |
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4 | import java.util.ListIterator; |
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5 | |
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6 | import javax.annotation.Nullable; |
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7 | |
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8 | import org.apache.commons.lang3.ClassUtils; |
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9 | import org.apache.logging.log4j.Logger; |
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10 | import org.apache.logging.log4j.LogManager; |
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11 | |
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12 | import com.framsticks.communication.File; |
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13 | import com.framsticks.params.types.ListParam; |
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14 | import com.framsticks.parsers.MultiParamLoader; |
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15 | import com.framsticks.structure.messages.Result; |
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16 | import com.framsticks.util.FramsticksException; |
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17 | import com.framsticks.util.FramsticksUnsupportedOperationException; |
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18 | import com.framsticks.util.Misc; |
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19 | import com.framsticks.util.UnimplementedException; |
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20 | import com.framsticks.util.lang.Casting; |
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21 | import com.framsticks.util.lang.Containers; |
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22 | import com.framsticks.util.lang.Holder; |
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23 | import com.framsticks.util.lang.Pair; |
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24 | // import com.framsticks.util.lang.Containers; |
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25 | |
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26 | import static com.framsticks.params.SetStateFlags.*; |
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27 | import static com.framsticks.util.lang.Containers.filterInstanceof; |
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28 | |
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29 | public final class AccessOperations { |
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30 | |
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31 | private final static Logger log = LogManager.getLogger(AccessOperations.class); |
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32 | |
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33 | /** |
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34 | * |
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35 | */ |
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36 | private AccessOperations() { |
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37 | } |
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38 | |
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39 | /** |
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40 | * Simple String key, value class. |
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41 | */ |
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42 | public static class Entry { |
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43 | |
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44 | public final String key; |
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45 | public final String value; |
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46 | |
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47 | public Entry(String key, String value) { |
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48 | this.key = key; |
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49 | this.value = value; |
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50 | } |
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51 | |
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52 | @Override |
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53 | public String toString() { |
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54 | return key + " = " + value; |
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55 | } |
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56 | } |
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57 | |
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58 | private static Entry readEntry(Source source) { |
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59 | |
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60 | String line; |
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61 | String key = null; |
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62 | StringBuilder value = null; |
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63 | while ((line = source.readLine()) != null) { |
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64 | if (key == null) { |
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65 | int colonIndex = line.indexOf(':'); |
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66 | if (colonIndex == -1) { |
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67 | return null; |
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68 | } |
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69 | key = line.substring(0, colonIndex); |
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70 | String inlineValue = line.substring(colonIndex + 1); |
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71 | |
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72 | |
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73 | if (!inlineValue.startsWith("~")) { |
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74 | return new Entry(key, inlineValue); |
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75 | } |
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76 | value = new StringBuilder(); |
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77 | value.append(inlineValue.substring(1)); |
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78 | continue; |
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79 | } |
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80 | if (value.length() != 0) { |
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81 | value.append(System.getProperty("line.separator")); |
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82 | } |
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83 | if (line.endsWith("~") && !line.endsWith("\\~")) { |
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84 | value.append(line.substring(0, line.length() - 1)); |
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85 | return new Entry(key, value.toString().replaceAll("\\\\~", "~")); |
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86 | } |
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87 | value.append(line); |
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88 | } |
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89 | return null; |
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90 | } |
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91 | |
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92 | public static <A extends Access> A assureSelected(A access) { |
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93 | if (access.getSelected() == null) { |
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94 | access.select(access.createAccessee()); |
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95 | } |
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96 | return access; |
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97 | } |
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98 | |
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99 | public static Access loadAll(@Nullable final Access rootAccess, Source source, final Registry registry) { |
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100 | final MultiParamLoader loader = new MultiParamLoader(); |
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101 | log.trace("loading all from {} into {}", source, rootAccess); |
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102 | loader.setNewSource(source); |
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103 | final LinkedList<Access> accessesStack = new LinkedList<>(); |
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104 | if (rootAccess != null) { |
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105 | assureSelected(rootAccess); |
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106 | accessesStack.add(rootAccess); |
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107 | } |
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108 | final Holder<Boolean> first = new Holder<>(true); |
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109 | final Holder<Boolean> needAdd = new Holder<>(); |
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110 | final Holder<Access> currentAccess = new Holder<>(); |
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111 | final Holder<Pair<Access, CompositeParam>> parent = new Holder<>(); |
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112 | |
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113 | loader.setAccessProvider(new AccessProvider() { |
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114 | @Override |
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115 | public Access getAccess(String name) { |
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116 | if (first.get()) { |
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117 | first.set(false); |
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118 | if (rootAccess != null) { |
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119 | if (name.equals(rootAccess.getTypeId())) { |
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120 | needAdd.set(false); |
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121 | currentAccess.set(rootAccess); |
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122 | return rootAccess; |
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123 | } |
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124 | } else { |
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125 | Access access = registry.createAccess(name); |
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126 | needAdd.set(false); |
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127 | currentAccess.set(access); |
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128 | return access; |
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129 | |
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130 | } |
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131 | } |
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132 | |
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133 | ListIterator<Access> accessIterator = accessesStack.listIterator(accessesStack.size()); |
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134 | parent.set(null); |
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135 | // log.debug("accesses stack: {}", accessesStack); |
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136 | |
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137 | while (accessIterator.hasPrevious()) { |
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138 | Access a = accessIterator.previous(); |
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139 | assert a != null; |
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140 | |
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141 | for (CompositeParam p : Containers.filterInstanceof(a.getParams(), CompositeParam.class)) { |
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142 | if (p.getContainedTypeName().equals(name)) { |
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143 | |
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144 | if (parent.get() != null) { |
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145 | throw new FramsticksException().msg("ambiguity encountered during loading").arg("name", name); |
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146 | } |
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147 | |
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148 | if (p instanceof ListParam) { |
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149 | ListAccess listAccess = Casting.assertCast(ListAccess.class, registry.prepareAccess(p, true)); |
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150 | Object list = a.get(p, Object.class); |
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151 | if (list == null) { |
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152 | list = listAccess.createAccessee(); |
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153 | a.set(p, list); |
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154 | } |
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155 | listAccess.select(list); |
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156 | parent.set(new Pair<Access, CompositeParam>(listAccess, listAccess.prepareParamFor(Integer.toString(listAccess.getParamCount())))); |
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157 | |
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158 | } else { |
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159 | parent.set(Pair.make(a, p)); |
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160 | } |
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161 | } |
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162 | } |
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163 | |
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164 | if (parent.get() == null) { |
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165 | log.trace("{} cannot be placed in {}", name, a); |
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166 | accessIterator.remove(); |
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167 | } |
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168 | } |
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169 | |
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170 | if (parent.get() == null) { |
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171 | throw new FramsticksException().msg("failed to find place for loaded object").arg("name", name); //.arg("in", accessesStack); |
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172 | } |
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173 | |
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174 | currentAccess.set(registry.prepareAccess(parent.get().second, true)); |
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175 | Object object = parent.get().first.get(parent.get().second, Object.class); |
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176 | if (object != null) { |
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177 | currentAccess.get().select(object); |
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178 | needAdd.set(false); |
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179 | } else { |
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180 | object = currentAccess.get().createAccessee(); |
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181 | currentAccess.get().select(object); |
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182 | needAdd.set(true); |
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183 | } |
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184 | |
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185 | return currentAccess.get(); |
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186 | } |
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187 | }); |
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188 | |
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189 | loader.addListener(MultiParamLoader.Status.AfterObject, new MultiParamLoader.StatusListener() { |
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190 | @Override |
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191 | public void onStatusChange() { |
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192 | if (needAdd.get()) { |
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193 | parent.get().first.set(parent.get().second, currentAccess.get().getSelected()); |
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194 | } |
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195 | if (currentAccess.get() != rootAccess) { |
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196 | accessesStack.add(currentAccess.get()); |
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197 | } |
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198 | currentAccess.set(null); |
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199 | } |
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200 | }); |
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201 | |
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202 | loader.go(); |
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203 | if (accessesStack.isEmpty()) { |
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204 | throw new FramsticksException().msg("failed to load from source").arg("source", source); |
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205 | } |
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206 | return accessesStack.get(0); |
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207 | } |
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208 | |
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209 | public static <S extends Sink> S saveAll(Access access, S sink, Registry registry) { |
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210 | if (access instanceof ObjectAccess) { |
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211 | savePrimitives(access, sink); |
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212 | } |
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213 | for (CompositeParam p : filterInstanceof(access.getParams(), CompositeParam.class)) { |
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214 | Object child = access.get(p, Object.class); |
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215 | if (child == null) { |
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216 | continue; |
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217 | } |
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218 | saveAll(registry.prepareAccess(p, true).select(child), sink, registry); |
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219 | } |
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220 | return sink; |
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221 | } |
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222 | |
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223 | public static void saveComposites(Access access, Sink sink, Registry registry) { |
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224 | for (CompositeParam p : filterInstanceof(access.getParams(), CompositeParam.class)) { |
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225 | Object child = access.get(p, Object.class); |
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226 | if (child == null) { |
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227 | continue; |
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228 | } |
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229 | savePrimitives(registry.prepareAccess(p, true).select(child), sink); |
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230 | } |
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231 | } |
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232 | |
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233 | public static void savePrimitives(Access access, Sink sink) { |
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234 | if (access instanceof ObjectAccess) { |
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235 | ObjectAccess objectAccess = (ObjectAccess) access; |
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236 | boolean headerNeeded = true; |
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237 | // sink.print(framsClass.getId()).print(":").breakLine(); |
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238 | for (PrimitiveParam<?> p : filterInstanceof(access.getParams(), PrimitiveParam.class)) { |
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239 | |
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240 | Object value = objectAccess.get(p, Object.class); |
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241 | if ((value == null) || value.equals(p.getDef(Object.class))) { |
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242 | continue; |
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243 | } |
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244 | |
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245 | if (headerNeeded) { |
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246 | sink.print(access.getTypeId()).print(":").breakLine(); |
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247 | headerNeeded = false; |
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248 | } |
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249 | |
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250 | String stringValue = p.serialize(value); |
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251 | |
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252 | sink.print(p.getId()).print(":").print(stringValue); |
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253 | // p.save(sink, stringValue); |
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254 | sink.breakLine(); |
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255 | } |
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256 | if (!headerNeeded) { |
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257 | sink.breakLine(); |
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258 | } |
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259 | return; |
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260 | } |
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261 | throw new FramsticksException().msg("invalid type of access for primitive save").arg("access", access); |
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262 | } |
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263 | |
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264 | public static void save(Access access, Sink sink) { |
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265 | if (access instanceof ObjectAccess) { |
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266 | savePrimitives(access, sink); |
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267 | return; |
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268 | } |
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269 | if (access instanceof ListAccess) { |
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270 | ListAccess listAccess = (ListAccess) access; |
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271 | for (CompositeParam p : filterInstanceof(listAccess.getParams(), CompositeParam.class)) { |
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272 | Object child = listAccess.get(p, Object.class); |
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273 | //this is probably an assertion |
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274 | assert child != null; |
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275 | save(listAccess.getElementAccess().select(child), sink); |
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276 | } |
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277 | return; |
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278 | } |
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279 | throw new FramsticksException().msg("unknown access category").arg("access", access); |
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280 | } |
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281 | |
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282 | public static void loadComposites(Access access, Source source, final Registry registry) { |
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283 | if (access instanceof ObjectAccess) { |
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284 | final ObjectAccess objectAccess = (ObjectAccess) access; |
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285 | |
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286 | MultiParamLoader loader = new MultiParamLoader(); |
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287 | |
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288 | loader.setNewSource(source); |
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289 | |
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290 | loader.setAccessProvider(new AccessProvider() { |
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291 | @Override |
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292 | public Access getAccess(String name) { |
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293 | CompositeParam result = null; |
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294 | for (CompositeParam p : filterInstanceof(objectAccess.getParams(), CompositeParam.class)) { |
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295 | if (p.getContainedTypeName().equals(name)) { |
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296 | if (result != null) { |
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297 | throw new FramsticksException().msg("class name is ambiguous in access").arg("name", name).arg("first candidate", result).arg("second candidate", p); |
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298 | } |
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299 | result = p; |
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300 | |
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301 | } |
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302 | } |
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303 | if (result == null) { |
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304 | throw new FramsticksException().msg("class name is unknown").arg("name", name).arg("in", objectAccess); |
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305 | } |
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306 | |
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307 | return registry.prepareAccess(result, true).select(objectAccess.get(result, Object.class)); |
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308 | } |
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309 | }); |
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310 | |
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311 | |
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312 | loader.go(); |
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313 | |
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314 | return; |
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315 | } |
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316 | throw new UnimplementedException().msg("unknown access category").arg("access", access); |
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317 | } |
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318 | |
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319 | public static void load(Access access, Source source) { |
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320 | if (!(access instanceof ObjectAccess)) { |
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321 | throw new FramsticksException().msg("access is not an object access").arg("access", access); |
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322 | } |
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323 | Entry entry; |
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324 | while ((entry = readEntry(source)) != null) { |
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325 | Param param = access.getParam(entry.key); |
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326 | if (param == null) { |
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327 | throw new FramsticksException().msg("param not found in access").arg("name", entry.key).arg("access", access); |
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328 | } |
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329 | if (!(param instanceof ValueParam)) { |
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330 | throw new FramsticksException().msg("param is not a value param").arg("param", param).arg("access", access); |
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331 | } |
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332 | if ((param.getFlags() & ParamFlags.DONTLOAD) == 0) { |
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333 | ValueParam valueParam = (ValueParam) param; |
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334 | // Object object = valueParam.deserialize(entry.value, null, Object.class); |
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335 | int retFlags = access.set(valueParam, entry.value); |
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336 | if ((retFlags & (PSET_HITMIN | PSET_HITMAX)) != 0) { |
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337 | String which = ((retFlags & PSET_HITMIN) != 0) ? "small" : "big"; |
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338 | log.warn("value of key '{}' was too {}, adjusted", entry.key, which); |
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339 | } |
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340 | } |
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341 | } |
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342 | } |
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343 | |
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344 | public interface Adjuster { |
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345 | public Holder<Object> adjust(ValueParam param); |
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346 | public Class<? extends ValueParam> getParamType(); |
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347 | } |
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348 | |
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349 | public static class MinAdjuster implements Adjuster { |
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350 | |
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351 | /** |
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352 | * |
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353 | */ |
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354 | public MinAdjuster() { |
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355 | } |
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356 | |
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357 | @Override |
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358 | public Class<? extends ValueParam> getParamType() { |
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359 | return PrimitiveParam.class; |
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360 | } |
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361 | |
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362 | @Override |
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363 | public Holder<Object> adjust(ValueParam param) { |
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364 | Object value = ((PrimitiveParam<?>) param).getMin(Object.class); |
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365 | if (value == null) { |
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366 | return null; |
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367 | } |
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368 | return Holder.make(value); |
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369 | } |
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370 | } |
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371 | |
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372 | public static class MaxAdjuster implements Adjuster { |
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373 | |
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374 | /** |
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375 | * |
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376 | */ |
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377 | public MaxAdjuster() { |
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378 | } |
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379 | |
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380 | @Override |
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381 | public Class<? extends ValueParam> getParamType() { |
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382 | return PrimitiveParam.class; |
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383 | } |
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384 | |
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385 | @Override |
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386 | public Holder<Object> adjust(ValueParam param) { |
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387 | Object value = ((PrimitiveParam<?>) param).getMax(Object.class); |
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388 | if (value == null) { |
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389 | return null; |
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390 | } |
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391 | return Holder.make(value); |
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392 | } |
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393 | } |
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394 | |
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395 | public static class DefAdjuster implements Adjuster { |
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396 | |
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397 | protected final boolean numericOnly; |
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398 | |
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399 | /** |
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400 | * @param numericOnly |
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401 | */ |
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402 | public DefAdjuster(boolean numericOnly) { |
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403 | this.numericOnly = numericOnly; |
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404 | } |
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405 | |
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406 | public Class<? extends ValueParam> getParamType() { |
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407 | return ValueParam.class; |
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408 | } |
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409 | |
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410 | @Override |
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411 | public Holder<Object> adjust(ValueParam param) { |
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412 | if (numericOnly && !(param.isNumeric())) { |
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413 | return null; |
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414 | } |
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415 | return Holder.make(param.getDef(Object.class)); |
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416 | } |
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417 | } |
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418 | |
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419 | public static void adjustAll(Access access, Adjuster adjuster) { |
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420 | for (ValueParam param : Containers.filterInstanceof(access.getParams(), adjuster.getParamType())) { |
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421 | Holder<Object> value = adjuster.adjust(param); |
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422 | if (value != null) { |
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423 | access.set(param, value.get()); |
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424 | } |
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425 | } |
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426 | } |
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427 | |
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428 | public static Object wrapValueInResultIfPrimitive(Object object) { |
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429 | Class<?> javaClass = object.getClass(); |
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430 | if (ClassUtils.isPrimitiveOrWrapper(javaClass)) { |
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431 | return new Result(object); |
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432 | } |
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433 | if (javaClass.equals(String.class)) { |
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434 | return new Result(object); |
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435 | } |
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436 | return object; |
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437 | } |
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438 | |
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439 | /** |
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440 | * |
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441 | * If both arguments are File, than do nothing; otherwise: |
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442 | * |
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443 | * If from argument is a File: |
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444 | * - if toJavaClass is Object.class, than try read using registry |
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445 | * - otherwise: try use loadComposites |
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446 | * |
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447 | * If to argument is a File: |
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448 | * - use Registry to saveAll |
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449 | * |
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450 | */ |
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451 | public static <T, F> T convert(Class<T> toJavaClass, F from, Registry registry) { |
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452 | log.trace("converting from {} to {}", from, toJavaClass); |
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453 | if (toJavaClass.equals(from.getClass())) { |
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454 | return toJavaClass.cast(from); |
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455 | } |
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456 | if (from instanceof File) { |
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457 | File file = (File) from; |
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458 | return Casting.throwCast(toJavaClass, loadAll((toJavaClass.equals(Object.class) ? null : registry.createAccess(toJavaClass)), file.getContent(), registry).getSelected()); |
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459 | } |
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460 | if (toJavaClass.equals(File.class)) { |
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461 | ListSink sink = new ListSink(); |
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462 | saveAll(registry.createAccess(from.getClass()).select(from), sink, registry); |
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463 | return Casting.throwCast(toJavaClass, new File("", new ListSource(sink.getOut()))); |
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464 | } |
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465 | |
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466 | throw new FramsticksUnsupportedOperationException().msg("conversion").arg("from", from.getClass()).arg("to", toJavaClass); |
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467 | } |
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468 | |
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469 | @SuppressWarnings("serial") |
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470 | public static class EqualityException extends FramsticksException { |
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471 | } |
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472 | |
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473 | |
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474 | public static void assureEquality(Access a, Access b, Registry registry) { |
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475 | try { |
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476 | if (a.getParamCount() != b.getParamCount()) { |
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477 | throw new EqualityException().msg("param count not equal").arg("left", a.getParamCount()).arg("right", b.getParamCount()); |
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478 | } |
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479 | for (ValueParam avp : Containers.filterInstanceof(a.getParams(), ValueParam.class)) { |
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480 | Param bp = b.getParam(avp.getId()); |
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481 | if (bp == null) { |
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482 | throw new EqualityException().msg("param from left not present in right").arg("param", avp); |
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483 | } |
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484 | Misc.checkEquals(avp.getClass(), bp.getClass(), "params type not equals", null); |
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485 | ValueParam bvp = (ValueParam) bp; |
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486 | |
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487 | Object oa = a.get(avp, Object.class); |
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488 | Object ob = b.get(avp, Object.class); |
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489 | |
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490 | if (avp instanceof CompositeParam) { |
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491 | assureEquality(registry.prepareAccess((CompositeParam) avp, false).select(oa), registry.prepareAccess((CompositeParam) bvp, false).select(ob), registry); |
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492 | continue; |
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493 | } |
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494 | Misc.checkEquals(oa, ob, "values not equal", null); |
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495 | } |
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496 | } catch (EqualityException e) { |
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497 | throw e.arg("left", a).arg("right", b); |
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498 | } |
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499 | } |
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500 | |
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501 | public static boolean areEqual(Access a, Access b, Registry registry) { |
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502 | try { |
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503 | assureEquality(a, b, registry); |
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504 | return true; |
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505 | } catch (EqualityException e) { |
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506 | } |
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507 | return false; |
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508 | } |
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509 | |
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510 | } |
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