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0
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1 /**
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2 * SPDX-FileCopyrightText: 2023 Sebastien Jodogne, UCLouvain, Belgium
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3 * SPDX-License-Identifier: GPL-3.0-or-later
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4 */
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5
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6 /**
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7 * Java plugin for Orthanc
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8 * Copyright (C) 2023 Sebastien Jodogne, UCLouvain, Belgium
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9 *
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10 * This program is free software: you can redistribute it and/or
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11 * modify it under the terms of the GNU General Public License as
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12 * published by the Free Software Foundation, either version 3 of the
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13 * License, or (at your option) any later version.
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14 *
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15 * This program is distributed in the hope that it will be useful, but
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16 * WITHOUT ANY WARRANTY; without even the implied warranty of
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17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 * General Public License for more details.
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19 *
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20 * You should have received a copy of the GNU General Public License
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21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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22 **/
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23
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24
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25 #include <orthanc/OrthancCPlugin.h>
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26
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27 #include <cassert>
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28 #include <iostream>
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29 #include <jni.h>
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30 #include <list>
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31 #include <map>
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32 #include <memory>
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33 #include <set>
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34 #include <stdexcept>
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35 #include <vector>
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36
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37 #include <json/reader.h>
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38
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39 #include "Mutex.h"
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40
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41 static OrthancPluginContext* context_ = NULL;
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42
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43
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44
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45 static const char* JAVA_EXCEPTION_CLASS = "be/uclouvain/orthanc/OrthancException";
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46
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47 class JavaVirtualMachine : public NonCopyable
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48 {
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49 private:
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50 JavaVM *jvm_;
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51
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52 public:
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53 JavaVirtualMachine(const std::string& classPath)
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54 {
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55 std::string classPathOption = "-Djava.class.path=" + classPath;
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56
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57 std::vector<JavaVMOption> options;
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58 options.resize(2);
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59 options[0].optionString = const_cast<char*>(classPathOption.c_str());
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60 options[0].extraInfo = NULL;
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61 options[1].optionString = const_cast<char*>("-Xcheck:jni");
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62 options[1].extraInfo = NULL;
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63
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64 JavaVMInitArgs vm_args;
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65 vm_args.version = JNI_VERSION_1_6;
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66 vm_args.nOptions = options.size();
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67 vm_args.options = (options.empty() ? NULL : &options[0]);
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68 vm_args.ignoreUnrecognized = false;
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69
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70 JNIEnv* env = NULL;
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71 jint res = JNI_CreateJavaVM(&jvm_, (void **) &env, &vm_args);
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72 if (res != JNI_OK ||
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73 jvm_ == NULL ||
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74 env == NULL)
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75 {
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76 throw std::runtime_error("Cannot create the JVM");
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77 }
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78 }
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79
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80 ~JavaVirtualMachine()
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81 {
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82 jvm_->DestroyJavaVM();
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83 }
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84
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85 JavaVM& GetValue()
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86 {
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87 assert(jvm_ != NULL);
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88 return *jvm_;
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89 }
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90 };
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91
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92
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93 class JavaEnvironment : public NonCopyable
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94 {
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95 private:
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96 JavaVM *jvm_;
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97 JNIEnv *env_;
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98
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99 public:
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100 JavaEnvironment(JNIEnv* env) :
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101 jvm_(NULL),
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102 env_(env)
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103 {
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104 if (env_ == NULL)
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105 {
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106 throw std::runtime_error("Null pointer");
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107 }
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108 }
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109
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110 JavaEnvironment(JavaVirtualMachine& jvm) :
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111 jvm_(&jvm.GetValue())
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112 {
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113 jint status = jvm_->GetEnv((void **) &env_, JNI_VERSION_1_6);
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114
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115 switch (status)
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116 {
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117 case JNI_OK:
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118 break;
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119
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120 case JNI_EDETACHED:
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121 {
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122 jint code = jvm_->AttachCurrentThread((void **) &env_, NULL);
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123 if (code != JNI_OK)
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124 {
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125 throw std::runtime_error("Cannot attach thread");
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126 }
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127 break;
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128 }
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129
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130 case JNI_EVERSION:
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131 throw std::runtime_error("JNI version not supported");
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132
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133 default:
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134 throw std::runtime_error("Not implemented");
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135 }
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136
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137 if (env_ == NULL)
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138 {
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139 throw std::runtime_error("Error inside JNI");
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140 }
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141 }
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142
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143 ~JavaEnvironment()
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144 {
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145 if (jvm_ != NULL)
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146 {
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147 jvm_->DetachCurrentThread();
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148 }
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149 }
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150
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151 void CheckException()
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152 {
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153 if (env_->ExceptionCheck() == JNI_TRUE)
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154 {
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155 env_->ExceptionClear();
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156 throw std::runtime_error("An exception has occurred in Java");
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157 }
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158 }
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159
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160 JNIEnv& GetValue()
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161 {
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162 assert(env_ != NULL);
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163 return *env_;
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164 }
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165
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166 void RunGarbageCollector()
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167 {
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168 assert(env_ != NULL);
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169
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170 jclass system = FindClass("java/lang/System");
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171
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172 jmethodID runFinalization = env_->GetStaticMethodID(system, "gc", "()V");
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173 if (runFinalization != NULL)
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174 {
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175 env_->CallStaticVoidMethod(system, runFinalization);
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176 CheckException();
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177 }
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178 else
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179 {
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180 throw std::runtime_error("Cannot run garbage collector");
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181 }
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182 }
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183
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184 jclass FindClass(const std::string& fqn)
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185 {
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186 jclass c = GetValue().FindClass(fqn.c_str());
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187
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188 if (c == NULL)
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189 {
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190 throw std::runtime_error("Unable to find class: " + fqn);
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191 }
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192 else
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193 {
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194 return c;
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195 }
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196 }
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197
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198 jclass GetObjectClass(jobject obj)
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199 {
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200 jclass c = GetValue().GetObjectClass(obj);
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201
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202 if (c == NULL)
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203 {
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204 throw std::runtime_error("Unable to get class of object");
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205 }
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206 else
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207 {
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208 return c;
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209 }
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210 }
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211
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212 jmethodID GetMethodID(jclass c,
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213 const std::string& method,
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214 const std::string& signature)
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215 {
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216 jmethodID m = GetValue().GetMethodID(c, method.c_str(), signature.c_str());
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217
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218 if (m == NULL)
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219 {
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220 throw std::runtime_error("Unable to locate method in class");
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221 }
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222 else
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223 {
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224 return m;
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225 }
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226 }
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227
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228 jobject ConstructJavaWrapper(const std::string& fqn,
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229 void* nativeObject)
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230 {
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231 jclass cls = FindClass(fqn);
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232 jmethodID constructor = GetMethodID(cls, "<init>", "(J)V");
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233 jobject obj = env_->NewObject(cls, constructor, reinterpret_cast<intptr_t>(nativeObject));
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234
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235 if (obj == NULL)
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236 {
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237 throw std::runtime_error("Cannot create Java wrapper around C/C++ object: " + fqn);
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238 }
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239 else
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240 {
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241 return obj;
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242 }
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243 }
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244
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245 jbyteArray ConstructByteArray(const size_t size,
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246 const void* data)
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247 {
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248 assert(env_ != NULL);
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249 jbyteArray obj = env_->NewByteArray(size);
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250 if (obj == NULL)
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251 {
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252 throw std::runtime_error("Cannot create a byte array");
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253 }
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254 else
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255 {
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256 if (size > 0)
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257 {
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258 env_->SetByteArrayRegion(obj, 0, size, reinterpret_cast<const jbyte*>(data));
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259 }
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260
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261 return obj;
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262 }
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263 }
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264
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265 jbyteArray ConstructByteArray(const std::string& data)
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266 {
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267 return ConstructByteArray(data.size(), data.c_str());
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268 }
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269
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270 void RegisterNatives(const std::string& fqn,
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271 const std::vector<JNINativeMethod>& methods)
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272 {
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273 if (!methods.empty())
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274 {
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275 if (env_->RegisterNatives(FindClass(fqn), &methods[0], methods.size()) < 0)
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276 {
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277 throw std::runtime_error("Unable to register the native methods");
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278 }
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279 }
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280 }
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281
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282 void ThrowException(const std::string& fqn,
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283 const std::string& message)
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284 {
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285 if (GetValue().ThrowNew(FindClass(fqn), message.c_str()) != 0)
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286 {
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287 std::string message = "Cannot throw exception " + fqn;
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288 OrthancPluginLogError(context_, message.c_str());
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289 }
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290 }
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291
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292 void ThrowException(const std::string& message)
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293 {
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294 ThrowException(JAVA_EXCEPTION_CLASS, message);
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295 }
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296
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297 void ThrowException(OrthancPluginErrorCode code)
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298 {
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299 ThrowException(JAVA_EXCEPTION_CLASS, OrthancPluginGetErrorDescription(context_, code));
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300 }
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301
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302 jobject ConstructEnumValue(const std::string& fqn,
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303 int value)
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304 {
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305 assert(env_ != NULL);
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306 jclass cls = FindClass(fqn);
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307
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308 std::string signature = "(I)L" + fqn + ";";
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309 jmethodID constructor = env_->GetStaticMethodID(cls, "getInstance", signature.c_str());
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310 if (constructor != NULL)
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311 {
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312 jobject obj = env_->CallStaticObjectMethod(cls, constructor, static_cast<jint>(value));
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313 CheckException();
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314 return obj;
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315 }
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316 else
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317 {
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318 char buf[16];
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319 sprintf(buf, "%d", value);
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320 throw std::runtime_error("Cannot create enumeration value: " + fqn + " " + buf);
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321 }
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322 }
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323
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324
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325 static void ThrowException(JNIEnv* env,
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326 const std::string& fqn,
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327 const std::string& message)
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328 {
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329 JavaEnvironment e(env);
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330 e.ThrowException(fqn, message);
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331 }
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332
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333 static void ThrowException(JNIEnv* env,
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334 const std::string& message)
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335 {
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336 JavaEnvironment e(env);
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337 e.ThrowException(message);
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338 }
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339
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340 static void ThrowException(JNIEnv* env,
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341 OrthancPluginErrorCode code)
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342 {
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343 JavaEnvironment e(env);
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344 e.ThrowException(code);
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345 }
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346 };
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347
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348
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349 static std::unique_ptr<JavaVirtualMachine> java_;
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350
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351
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352
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353 class JavaString : public NonCopyable
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354 {
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355 private:
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356 JNIEnv* env_;
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357 jstring javaStr_;
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358 const char* cStr_;
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359 jboolean isCopy_;
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360
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361 public:
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362 JavaString(JNIEnv* env,
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363 jstring javaStr) :
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364 env_(env),
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365 javaStr_(javaStr)
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366 {
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367 if (env == NULL ||
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368 javaStr == NULL)
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369 {
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370 throw std::runtime_error("Null pointer");
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371 }
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372
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373 cStr_ = env_->GetStringUTFChars(javaStr_, &isCopy_);
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374 if (cStr_ == NULL)
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375 {
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376 throw std::runtime_error("Cannot read string");
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377 }
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378 }
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379
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380 ~JavaString()
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381 {
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382 /**
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383 * "The ReleaseString-Chars call is necessary whether
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384 * GetStringChars has set isCopy to JNI_TRUE or JNI_FALSE."
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385 * https://stackoverflow.com/a/5863081
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386 **/
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387 env_->ReleaseStringUTFChars(javaStr_, cStr_);
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388 }
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389
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390 const char* GetValue() const
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391 {
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392 return cStr_;
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393 }
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394 };
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395
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396
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397 class JavaBytes : public NonCopyable
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398 {
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399 private:
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400 JNIEnv* env_;
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401 jbyteArray bytes_;
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402 jbyte* data_;
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403 jsize size_;
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404 jboolean isCopy_;
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405
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406 public:
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407 JavaBytes(JNIEnv* env,
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408 jbyteArray bytes) :
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409 env_(env),
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410 bytes_(bytes)
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411 {
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412 if (env == NULL ||
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413 bytes == NULL)
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414 {
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415 throw std::runtime_error("Null pointer");
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416 }
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417
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418 size_ = env->GetArrayLength(bytes);
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419
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420 if (size_ == 0)
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421 {
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422 data_ = NULL;
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423 }
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424 else
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425 {
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426 data_ = env->GetByteArrayElements(bytes_, &isCopy_);
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427 if (data_ == NULL)
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428 {
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429 throw std::runtime_error("Cannot read array of bytes");
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430 }
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431 }
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432 }
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433
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434 ~JavaBytes()
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435 {
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436 if (size_ > 0)
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437 {
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438 env_->ReleaseByteArrayElements(bytes_, data_, 0);
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439 }
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440 }
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441
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442 const void* GetData() const
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443 {
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444 return data_;
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445 }
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446
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447 size_t GetSize() const
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448 {
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449 return size_;
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450 }
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451 };
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452
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453
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454 class OrthancString : public NonCopyable
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455 {
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456 private:
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457 char* str_;
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458
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459 public:
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460 OrthancString(char* str) :
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461 str_(str)
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462 {
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463 }
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464
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465 ~OrthancString()
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466 {
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467 if (str_ != NULL)
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468 {
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469 OrthancPluginFreeString(context_, str_);
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470 }
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471 }
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472
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473 const char* GetValue() const
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474 {
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475 return str_;
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476 }
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477 };
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478
|
|
|
479
|
|
|
480 class OrthancBytes : public NonCopyable
|
|
|
481 {
|
|
|
482 private:
|
|
|
483 OrthancPluginMemoryBuffer buffer_;
|
|
|
484
|
|
|
485 public:
|
|
|
486 OrthancBytes()
|
|
|
487 {
|
|
|
488 buffer_.data = NULL;
|
|
|
489 buffer_.size = 0;
|
|
|
490 }
|
|
|
491
|
|
|
492 ~OrthancBytes()
|
|
|
493 {
|
|
|
494 OrthancPluginFreeMemoryBuffer(context_, &buffer_);
|
|
|
495 }
|
|
|
496
|
|
|
497 OrthancPluginMemoryBuffer* GetMemoryBuffer()
|
|
|
498 {
|
|
|
499 return &buffer_;
|
|
|
500 }
|
|
|
501
|
|
|
502 const void* GetData() const
|
|
|
503 {
|
|
|
504 return buffer_.data;
|
|
|
505 }
|
|
|
506
|
|
|
507 size_t GetSize() const
|
|
|
508 {
|
|
|
509 return buffer_.size;
|
|
|
510 }
|
|
|
511 };
|
|
|
512
|
|
|
513
|
|
|
514 class JavaGlobalReference : public NonCopyable
|
|
|
515 {
|
|
|
516 private:
|
|
|
517 JavaVirtualMachine& jvm_;
|
|
|
518 jobject obj_;
|
|
|
519
|
|
|
520 public:
|
|
|
521 JavaGlobalReference(JavaVirtualMachine& jvm,
|
|
|
522 jobject obj) :
|
|
|
523 jvm_(jvm),
|
|
|
524 obj_(NULL)
|
|
|
525 {
|
|
|
526 if (obj == NULL)
|
|
|
527 {
|
|
|
528 throw std::runtime_error("Null pointer");
|
|
|
529 }
|
|
|
530
|
|
|
531 JavaEnvironment env(jvm);
|
|
|
532
|
|
|
533 obj_ = env.GetValue().NewGlobalRef(obj);
|
|
|
534 if (obj_ == NULL)
|
|
|
535 {
|
|
|
536 throw std::runtime_error("Cannot create global reference");
|
|
|
537 }
|
|
|
538 }
|
|
|
539
|
|
|
540 ~JavaGlobalReference()
|
|
|
541 {
|
|
|
542 assert(obj_ != NULL);
|
|
|
543
|
|
|
544 try
|
|
|
545 {
|
|
|
546 JavaEnvironment env(jvm_);
|
|
|
547 env.GetValue().DeleteGlobalRef(obj_);
|
|
|
548 }
|
|
|
549 catch (std::runtime_error& e)
|
|
|
550 {
|
|
|
551 OrthancPluginLogError(context_, e.what());
|
|
|
552 }
|
|
|
553 }
|
|
|
554
|
|
|
555 jobject GetValue()
|
|
|
556 {
|
|
|
557 assert(obj_ != NULL);
|
|
|
558 return obj_;
|
|
|
559 }
|
|
|
560 };
|
|
|
561
|
|
|
562
|
|
|
563 class LocalJavaObject : public NonCopyable
|
|
|
564 {
|
|
|
565 private:
|
|
|
566 JNIEnv* env_;
|
|
|
567 jobject obj_;
|
|
|
568
|
|
|
569 public:
|
|
|
570 LocalJavaObject(JavaEnvironment& env,
|
|
|
571 jobject obj,
|
|
|
572 bool objCanBeNull = false) :
|
|
|
573 env_(&env.GetValue()),
|
|
|
574 obj_(obj)
|
|
|
575 {
|
|
|
576 if (!objCanBeNull && obj == NULL)
|
|
|
577 {
|
|
|
578 throw std::runtime_error("Null pointer");
|
|
|
579 }
|
|
|
580 }
|
|
|
581
|
|
|
582 ~LocalJavaObject()
|
|
|
583 {
|
|
|
584 env_->DeleteLocalRef(obj_);
|
|
|
585 }
|
|
|
586
|
|
|
587 jobject GetValue()
|
|
|
588 {
|
|
|
589 return obj_;
|
|
|
590 }
|
|
|
591
|
|
|
592 static LocalJavaObject* CreateArrayOfStrings(JavaEnvironment& env,
|
|
|
593 const std::vector<std::string>& items)
|
|
|
594 {
|
|
|
595 LocalJavaObject emptyString(env, env.GetValue().NewStringUTF(""));
|
|
|
596
|
|
|
597 jobjectArray obj = env.GetValue().NewObjectArray(
|
|
|
598 items.size(), env.GetValue().FindClass("java/lang/String"),
|
|
|
599 emptyString.GetValue());
|
|
|
600
|
|
|
601 if (obj == NULL)
|
|
|
602 {
|
|
|
603 throw std::runtime_error("Cannot create an array of Java strings");
|
|
|
604 }
|
|
|
605 else
|
|
|
606 {
|
|
|
607 std::unique_ptr<LocalJavaObject> result(new LocalJavaObject(env, obj));
|
|
|
608
|
|
|
609 for (size_t i = 0; i < items.size(); i++)
|
|
|
610 {
|
|
|
611 LocalJavaObject item(env, env.GetValue().NewStringUTF(items[i].c_str()));
|
|
|
612 env.GetValue().SetObjectArrayElement(obj, i, item.GetValue());
|
|
|
613 }
|
|
|
614
|
|
|
615 return result.release();
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
|
619 static LocalJavaObject* CreateDictionary(JavaEnvironment& env,
|
|
|
620 const std::map<std::string, std::string>& items)
|
|
|
621 {
|
|
|
622 // NB: In JNI, there are no generics. All the templated arguments
|
|
|
623 // are taken as instances of the "Object" base class.
|
|
|
624
|
|
|
625 jclass cls = env.FindClass("java/util/HashMap");
|
|
|
626 jmethodID constructor = env.GetMethodID(cls, "<init>", "()V");
|
|
|
627 jmethodID setter = env.GetMethodID(cls, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
|
|
|
628 jobject obj = env.GetValue().NewObject(cls, constructor);
|
|
|
629
|
|
|
630 if (obj == NULL)
|
|
|
631 {
|
|
|
632 throw std::runtime_error("Cannot create a Java dictionary");
|
|
|
633 }
|
|
|
634 else
|
|
|
635 {
|
|
|
636 std::unique_ptr<LocalJavaObject> result(new LocalJavaObject(env, obj));
|
|
|
637
|
|
|
638 for (std::map<std::string, std::string>::const_iterator it = items.begin(); it != items.end(); ++it)
|
|
|
639 {
|
|
|
640 LocalJavaObject key(env, env.GetValue().NewStringUTF(it->first.c_str()));
|
|
|
641 LocalJavaObject value(env, env.GetValue().NewStringUTF(it->second.c_str()));
|
|
|
642 LocalJavaObject previousValue(env, env.GetValue().CallObjectMethod(obj, setter, key.GetValue(), value.GetValue()), true);
|
|
|
643 env.CheckException();
|
|
|
644 }
|
|
|
645
|
|
|
646 return result.release();
|
|
|
647 }
|
|
|
648 }
|
|
|
649 };
|
|
|
650
|
|
|
651
|
|
|
652
|
|
|
653 #include "NativeSDK.cpp"
|
|
|
654
|
|
|
655
|
|
|
656
|
|
|
657 #define MAX_REST_CALLBACKS 10
|
|
|
658
|
|
|
659 class CallbacksConfiguration : public NonCopyable
|
|
|
660 {
|
|
|
661 private:
|
|
|
662 Mutex mutex_;
|
|
|
663 std::list<JavaGlobalReference*> onChangeCallbacks_;
|
|
|
664 std::vector<JavaGlobalReference*> onRestRequestCallbacks_;
|
|
|
665
|
|
|
666 static void DestructCallbacks(std::list<JavaGlobalReference*>& lst)
|
|
|
667 {
|
|
|
668 for (std::list<JavaGlobalReference*>::iterator it = lst.begin(); it != lst.end(); ++it)
|
|
|
669 {
|
|
|
670 assert(*it != NULL);
|
|
|
671 delete *it;
|
|
|
672 }
|
|
|
673 }
|
|
|
674
|
|
|
675 static void DestructCallbacks(std::vector<JavaGlobalReference*>& v)
|
|
|
676 {
|
|
|
677 for (size_t i = 0; i < v.size(); i++)
|
|
|
678 {
|
|
|
679 assert(v[i] != NULL);
|
|
|
680 delete v[i];
|
|
|
681 }
|
|
|
682 }
|
|
|
683
|
|
|
684 void CopyCallbacks(std::list<jobject>& target,
|
|
|
685 const std::list<JavaGlobalReference*>& lst)
|
|
|
686 {
|
|
|
687 Mutex::Locker locker(mutex_);
|
|
|
688 target.clear();
|
|
|
689
|
|
|
690 for (std::list<JavaGlobalReference*>::const_iterator it = lst.begin(); it != lst.end(); ++it)
|
|
|
691 {
|
|
|
692 assert(*it != NULL);
|
|
|
693 target.push_back((*it)->GetValue());
|
|
|
694 }
|
|
|
695 }
|
|
|
696
|
|
|
697 void AddCallback(std::list<JavaGlobalReference*>& lst,
|
|
|
698 JavaVirtualMachine& jvm,
|
|
|
699 jobject callback)
|
|
|
700 {
|
|
|
701 if (callback == NULL)
|
|
|
702 {
|
|
|
703 throw std::runtime_error("Null pointer");
|
|
|
704 }
|
|
|
705 else
|
|
|
706 {
|
|
|
707 Mutex::Locker locker(mutex_);
|
|
|
708 lst.push_back(new JavaGlobalReference(jvm, callback));
|
|
|
709 }
|
|
|
710 }
|
|
|
711
|
|
|
712 public:
|
|
|
713 CallbacksConfiguration()
|
|
|
714 {
|
|
|
715 onRestRequestCallbacks_.reserve(MAX_REST_CALLBACKS);
|
|
|
716 }
|
|
|
717
|
|
|
718 ~CallbacksConfiguration()
|
|
|
719 {
|
|
|
720 DestructCallbacks(onChangeCallbacks_);
|
|
|
721 DestructCallbacks(onRestRequestCallbacks_);
|
|
|
722 }
|
|
|
723
|
|
|
724 void AddOnChangeCallback(JavaVirtualMachine& jvm,
|
|
|
725 jobject callback)
|
|
|
726 {
|
|
|
727 AddCallback(onChangeCallbacks_, jvm, callback);
|
|
|
728 }
|
|
|
729
|
|
|
730 void GetOnChangeCallbacks(std::list<jobject>& target)
|
|
|
731 {
|
|
|
732 CopyCallbacks(target, onChangeCallbacks_);
|
|
|
733 }
|
|
|
734
|
|
|
735 size_t AddOnRestRequestCallback(JavaVirtualMachine& jvm,
|
|
|
736 jobject callback)
|
|
|
737 {
|
|
|
738 if (callback == NULL)
|
|
|
739 {
|
|
|
740 throw std::runtime_error("Null pointer");
|
|
|
741 }
|
|
|
742 else
|
|
|
743 {
|
|
|
744 Mutex::Locker locker(mutex_);
|
|
|
745
|
|
|
746 if (onRestRequestCallbacks_.size() >= MAX_REST_CALLBACKS)
|
|
|
747 {
|
|
|
748 char buf[16];
|
|
|
749 sprintf(buf, "%d", MAX_REST_CALLBACKS);
|
|
|
750 throw std::runtime_error("The Java plugin for Orthanc has been compiled for a maximum of " +
|
|
|
751 std::string(buf) + " REST callbacks");
|
|
|
752 }
|
|
|
753 else
|
|
|
754 {
|
|
|
755 size_t result = onRestRequestCallbacks_.size();
|
|
|
756 onRestRequestCallbacks_.push_back(new JavaGlobalReference(jvm, callback));
|
|
|
757 return result;
|
|
|
758 }
|
|
|
759 }
|
|
|
760 }
|
|
|
761
|
|
|
762 jobject GetOnRestCallback(size_t i)
|
|
|
763 {
|
|
|
764 Mutex::Locker locker(mutex_);
|
|
|
765
|
|
|
766 if (i >= onRestRequestCallbacks_.size())
|
|
|
767 {
|
|
|
768 throw std::runtime_error("Unknown REST callback");
|
|
|
769 }
|
|
|
770 else
|
|
|
771 {
|
|
|
772 assert(onRestRequestCallbacks_[i] != NULL);
|
|
|
773 return onRestRequestCallbacks_[i]->GetValue();
|
|
|
774 }
|
|
|
775 }
|
|
|
776 };
|
|
|
777
|
|
|
778 static std::unique_ptr<CallbacksConfiguration> callbacksConfiguration_;
|
|
|
779
|
|
|
780
|
|
|
781
|
|
|
782
|
|
|
783 template<size_t Index>
|
|
|
784 class RestCallbacksPool
|
|
|
785 {
|
|
|
786 private:
|
|
|
787 RestCallbacksPool<Index - 1> next_;
|
|
|
788
|
|
|
789 static OrthancPluginErrorCode Callback(OrthancPluginRestOutput* output,
|
|
|
790 const char* uri,
|
|
|
791 const OrthancPluginHttpRequest* request)
|
|
|
792 {
|
|
|
793 try
|
|
|
794 {
|
|
|
795 jobject callback = callbacksConfiguration_->GetOnRestCallback(MAX_REST_CALLBACKS - Index);
|
|
|
796 if (callback == NULL)
|
|
|
797 {
|
|
|
798 throw std::runtime_error("Missing callback");
|
|
|
799 }
|
|
|
800
|
|
|
801 std::vector<std::string> groups;
|
|
|
802 groups.resize(request->groupsCount);
|
|
|
803 for (uint32_t i = 0; i < request->groupsCount; i++)
|
|
|
804 {
|
|
|
805 groups[i].assign(request->groups[i]);
|
|
|
806 }
|
|
|
807
|
|
|
808 std::map<std::string, std::string> headers;
|
|
|
809 for (uint32_t i = 0; i < request->headersCount; i++)
|
|
|
810 {
|
|
|
811 headers[request->headersKeys[i]] = request->headersValues[i];
|
|
|
812 }
|
|
|
813
|
|
|
814 std::map<std::string, std::string> getParameters;
|
|
|
815 for (uint32_t i = 0; i < request->getCount; i++)
|
|
|
816 {
|
|
|
817 getParameters[request->getKeys[i]] = request->getValues[i];
|
|
|
818 }
|
|
|
819
|
|
|
820 JavaEnvironment env(*java_);
|
|
|
821
|
|
|
822 LocalJavaObject joutput(env, env.ConstructJavaWrapper("be/uclouvain/orthanc/RestOutput", output));
|
|
|
823 LocalJavaObject jmethod(env, env.ConstructEnumValue("be/uclouvain/orthanc/HttpMethod", request->method));
|
|
|
824 LocalJavaObject juri(env, env.GetValue().NewStringUTF(uri == NULL ? "" : uri));
|
|
|
825 std::unique_ptr<LocalJavaObject> jgroups(LocalJavaObject::CreateArrayOfStrings(env, groups));
|
|
|
826 std::unique_ptr<LocalJavaObject> jheaders(LocalJavaObject::CreateDictionary(env, headers));
|
|
|
827 std::unique_ptr<LocalJavaObject> jgetParameters(LocalJavaObject::CreateDictionary(env, getParameters));
|
|
|
828 LocalJavaObject jbody(env, env.ConstructByteArray(request->bodySize, request->body));
|
|
|
829
|
|
|
830 jmethodID call = env.GetMethodID(
|
|
|
831 env.GetObjectClass(callback), "call",
|
|
|
832 "(Lbe/uclouvain/orthanc/RestOutput;Lbe/uclouvain/orthanc/HttpMethod;Ljava/lang/String;"
|
|
|
833 "[Ljava/lang/String;Ljava/util/Map;Ljava/util/Map;[B)V");
|
|
|
834
|
|
|
835 env.GetValue().CallVoidMethod(callback, call, joutput.GetValue(), jmethod.GetValue(), juri.GetValue(),
|
|
|
836 jgroups->GetValue(), jheaders->GetValue(), jgetParameters->GetValue(), jbody.GetValue());
|
|
|
837 env.CheckException();
|
|
|
838
|
|
|
839 return OrthancPluginErrorCode_Success;
|
|
|
840 }
|
|
|
841 catch (std::runtime_error& e)
|
|
|
842 {
|
|
|
843 OrthancPluginLogError(context_, e.what());
|
|
|
844 return OrthancPluginErrorCode_Plugin;
|
|
|
845 }
|
|
|
846 catch (...)
|
|
|
847 {
|
|
|
848 OrthancPluginLogError(context_, "Caught native exception");
|
|
|
849 return OrthancPluginErrorCode_Plugin;
|
|
|
850 }
|
|
|
851 }
|
|
|
852
|
|
|
853 public:
|
|
|
854 OrthancPluginRestCallback GetCallback(size_t i)
|
|
|
855 {
|
|
|
856 if (i == 0)
|
|
|
857 {
|
|
|
858 return Callback;
|
|
|
859 }
|
|
|
860 else
|
|
|
861 {
|
|
|
862 return next_.GetCallback(i - 1);
|
|
|
863 }
|
|
|
864 }
|
|
|
865 };
|
|
|
866
|
|
|
867 template<>
|
|
|
868 class RestCallbacksPool<0>
|
|
|
869 {
|
|
|
870 public:
|
|
|
871 OrthancPluginRestCallback& GetCallback(size_t i)
|
|
|
872 {
|
|
|
873 throw std::runtime_error("Out of tuple");
|
|
|
874 }
|
|
|
875 };
|
|
|
876
|
|
|
877
|
|
|
878 static RestCallbacksPool<MAX_REST_CALLBACKS> restCallbacksPool_;
|
|
|
879
|
|
|
880
|
|
|
881
|
|
|
882 OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType,
|
|
|
883 OrthancPluginResourceType resourceType,
|
|
|
884 const char* resourceId)
|
|
|
885 {
|
|
|
886 try
|
|
|
887 {
|
|
|
888 std::list<jobject> callbacks;
|
|
|
889 callbacksConfiguration_->GetOnChangeCallbacks(callbacks);
|
|
|
890
|
|
|
891 if (!callbacks.empty())
|
|
|
892 {
|
|
|
893 JavaEnvironment env(*java_);
|
|
|
894
|
|
|
895 LocalJavaObject c(env, env.ConstructEnumValue("be/uclouvain/orthanc/ChangeType", changeType));
|
|
|
896 LocalJavaObject r(env, env.ConstructEnumValue("be/uclouvain/orthanc/ResourceType", resourceType));
|
|
|
897 LocalJavaObject s(env, env.GetValue().NewStringUTF(resourceId == NULL ? "" : resourceId));
|
|
|
898
|
|
|
899 for (std::list<jobject>::const_iterator
|
|
|
900 callback = callbacks.begin(); callback != callbacks.end(); ++callback)
|
|
|
901 {
|
|
|
902 assert(*callback != NULL);
|
|
|
903
|
|
|
904 jmethodID call = env.GetMethodID(
|
|
|
905 env.GetObjectClass(*callback), "call",
|
|
|
906 "(Lbe/uclouvain/orthanc/ChangeType;Lbe/uclouvain/orthanc/ResourceType;Ljava/lang/String;)V");
|
|
|
907
|
|
|
908 env.GetValue().CallVoidMethod(*callback, call, c.GetValue(), r.GetValue(), s.GetValue());
|
|
|
909 env.CheckException();
|
|
|
910 }
|
|
|
911 }
|
|
|
912
|
|
|
913 return OrthancPluginErrorCode_Success;
|
|
|
914 }
|
|
|
915 catch (std::runtime_error& e)
|
|
|
916 {
|
|
|
917 OrthancPluginLogError(context_, e.what());
|
|
|
918 return OrthancPluginErrorCode_Plugin;
|
|
|
919 }
|
|
|
920 catch (...)
|
|
|
921 {
|
|
|
922 OrthancPluginLogError(context_, "Caught native exception");
|
|
|
923 return OrthancPluginErrorCode_Plugin;
|
|
|
924 }
|
|
|
925 }
|
|
|
926
|
|
|
927
|
|
|
928 JNIEXPORT void RegisterOnChangeCallback(JNIEnv* env, jobject sdkObject, jobject callback)
|
|
|
929 {
|
|
|
930 try
|
|
|
931 {
|
|
|
932 callbacksConfiguration_->AddOnChangeCallback(*java_, callback);
|
|
|
933 }
|
|
|
934 catch (std::runtime_error& e)
|
|
|
935 {
|
|
|
936 JavaEnvironment::ThrowException(env, e.what());
|
|
|
937 }
|
|
|
938 catch (...)
|
|
|
939 {
|
|
|
940 JavaEnvironment::ThrowException(env, OrthancPluginErrorCode_Plugin);
|
|
|
941 }
|
|
|
942 }
|
|
|
943
|
|
|
944
|
|
|
945 JNIEXPORT void RegisterOnRestRequestCallback(JNIEnv* env, jobject sdkObject, jstring regex, jobject callback)
|
|
|
946 {
|
|
|
947 try
|
|
|
948 {
|
|
|
949 JavaString cregex(env, regex);
|
|
|
950 size_t index = callbacksConfiguration_->AddOnRestRequestCallback(*java_, callback);
|
|
|
951 OrthancPluginRegisterRestCallbackNoLock(context_, cregex.GetValue(), restCallbacksPool_.GetCallback(index));
|
|
|
952 }
|
|
|
953 catch (std::runtime_error& e)
|
|
|
954 {
|
|
|
955 JavaEnvironment::ThrowException(env, e.what());
|
|
|
956 }
|
|
|
957 catch (...)
|
|
|
958 {
|
|
|
959 JavaEnvironment::ThrowException(env, OrthancPluginErrorCode_Plugin);
|
|
|
960 }
|
|
|
961 }
|
|
|
962
|
|
|
963
|
|
|
964 extern "C"
|
|
|
965 {
|
|
|
966 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context)
|
|
|
967 {
|
|
|
968 context_ = context;
|
|
|
969
|
|
|
970 /* Check the version of the Orthanc core */
|
|
|
971 if (OrthancPluginCheckVersion(context) == 0)
|
|
|
972 {
|
|
|
973 char info[1024];
|
|
|
974 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
|
|
|
975 context->orthancVersion,
|
|
|
976 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
|
|
|
977 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
|
|
|
978 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
|
|
|
979 OrthancPluginLogError(context, info);
|
|
|
980 return -1;
|
|
|
981 }
|
|
|
982
|
|
|
983 try
|
|
|
984 {
|
|
|
985 {
|
|
|
986 // Sanity check to ensure that the compiler has created different callback functions
|
|
|
987 std::set<intptr_t> c;
|
|
|
988 for (unsigned int i = 0; i < MAX_REST_CALLBACKS; i++)
|
|
|
989 {
|
|
|
990 c.insert(reinterpret_cast<intptr_t>(restCallbacksPool_.GetCallback(i)));
|
|
|
991 }
|
|
|
992
|
|
|
993 if (c.size() != MAX_REST_CALLBACKS)
|
|
|
994 {
|
|
|
995 throw std::runtime_error("The Java plugin has not been properly compiled");
|
|
|
996 }
|
|
|
997 }
|
|
|
998
|
|
|
999 java_.reset(new JavaVirtualMachine("TODO"));
|
|
|
1000
|
|
|
1001 callbacksConfiguration_.reset(new CallbacksConfiguration);
|
|
|
1002 OrthancPluginRegisterOnChangeCallback(context_, OnChangeCallback);
|
|
|
1003
|
|
|
1004 JavaEnvironment env(*java_);
|
|
|
1005
|
|
|
1006 {
|
|
|
1007 std::vector<JNINativeMethod> methods;
|
|
|
1008 JNI_LoadNatives(methods);
|
|
|
1009 env.RegisterNatives("be/uclouvain/orthanc/NativeSDK", methods);
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 {
|
|
|
1013 std::vector<JNINativeMethod> methods;
|
|
|
1014 methods.push_back((JNINativeMethod) {
|
|
|
1015 const_cast<char*>("register"),
|
|
|
1016 const_cast<char*>("(Lbe/uclouvain/orthanc/Callbacks$OnChange;)V"),
|
|
|
1017 (void*) RegisterOnChangeCallback });
|
|
|
1018 methods.push_back((JNINativeMethod) {
|
|
|
1019 const_cast<char*>("register"),
|
|
|
1020 const_cast<char*>("(Ljava/lang/String;Lbe/uclouvain/orthanc/Callbacks$OnRestRequest;)V"),
|
|
|
1021 (void*) RegisterOnRestRequestCallback });
|
|
|
1022 env.RegisterNatives("be/uclouvain/orthanc/Callbacks", methods);
|
|
|
1023 }
|
|
|
1024 }
|
|
|
1025 catch (std::runtime_error& e)
|
|
|
1026 {
|
|
|
1027 OrthancPluginLogError(context, e.what());
|
|
|
1028 return -1;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 return 0;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034
|
|
|
1035 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
|
|
|
1036 {
|
|
|
1037 if (java_.get() != NULL)
|
|
|
1038 {
|
|
|
1039 callbacksConfiguration_.reset(NULL);
|
|
|
1040
|
|
|
1041 try
|
|
|
1042 {
|
|
|
1043 JavaEnvironment env(*java_);
|
|
|
1044 env.RunGarbageCollector();
|
|
|
1045 }
|
|
|
1046 catch (std::runtime_error& e)
|
|
|
1047 {
|
|
|
1048 OrthancPluginLogError(context_, e.what());
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 java_.reset(NULL);
|
|
|
1052 }
|
|
|
1053 }
|
|
|
1054
|
|
|
1055
|
|
|
1056 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
|
|
|
1057 {
|
|
|
1058 return "java";
|
|
|
1059 }
|
|
|
1060
|
|
|
1061
|
|
|
1062 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
|
|
|
1063 {
|
|
|
1064 return PLUGIN_VERSION;
|
|
|
1065 }
|
|
|
1066 }
|
