1 /* Java bindings of the NetZones. */
3 /* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
9 #include "simgrid/s4u/Host.hpp"
10 #include "simgrid/s4u/NetZone.hpp"
13 #include "jmsg_as.hpp"
14 #include "jmsg_host.h"
15 #include "jxbt_utilities.hpp"
17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
19 static jmethodID jas_method_As_constructor;
20 static jfieldID jas_field_As_bind;
22 jobject jnetzone_new_instance(JNIEnv* env)
24 jclass cls = jxbt_get_class(env, "org/simgrid/msg/As");
25 return env->NewObject(cls, jas_method_As_constructor);
28 jobject jnetzone_ref(JNIEnv* env, jobject jas)
30 return env->NewGlobalRef(jas);
33 void jnetzone_unref(JNIEnv* env, jobject jas)
35 env->DeleteGlobalRef(jas);
38 void jnetzone_bind(jobject jas, simgrid::s4u::NetZone* netzone, JNIEnv* env)
40 env->SetLongField(jas, jas_field_As_bind, (jlong)(uintptr_t)(netzone));
43 simgrid::s4u::NetZone* jnetzone_get_native(JNIEnv* env, jobject jas)
45 return (simgrid::s4u::NetZone*)(uintptr_t)env->GetLongField(jas, jas_field_As_bind);
48 JNIEXPORT void JNICALL Java_org_simgrid_msg_As_nativeInit(JNIEnv* env, jclass cls)
50 jclass class_As = env->FindClass("org/simgrid/msg/As");
51 jas_method_As_constructor = env->GetMethodID(class_As, "<init>", "()V");
52 jas_field_As_bind = jxbt_get_jfield(env,class_As, "bind", "J");
53 xbt_assert(class_As && jas_method_As_constructor && jas_field_As_bind,
54 "Native initialization of msg/AS failed. Please report that bug");
57 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_As_getName(JNIEnv * env, jobject jas) {
58 const simgrid::s4u::NetZone* as = jnetzone_get_native(env, jas);
59 return env->NewStringUTF(as->get_cname());
62 JNIEXPORT jobjectArray JNICALL Java_org_simgrid_msg_As_getSons(JNIEnv * env, jobject jas) {
65 const simgrid::s4u::NetZone* self_as = jnetzone_get_native(env, jas);
67 jclass cls = env->FindClass("org/simgrid/msg/As");
72 jtable = env->NewObjectArray(static_cast<jsize>(self_as->get_children().size()), cls, nullptr);
75 jxbt_throw_jni(env, "Hosts table allocation failed");
79 for (auto const& tmp_as : self_as->get_children()) {
80 jobject tmp_jas = jnetzone_new_instance(env);
82 jxbt_throw_jni(env, "java As instantiation failed");
85 tmp_jas = jnetzone_ref(env, tmp_jas);
87 jxbt_throw_jni(env, "new global ref allocation failed");
90 jnetzone_bind(tmp_jas, tmp_as, env);
92 env->SetObjectArrayElement(jtable, index, tmp_jas);
98 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_As_getProperty(JNIEnv *env, jobject jas, jobject jname) {
99 const simgrid::s4u::NetZone* as = jnetzone_get_native(env, jas);
102 jxbt_throw_notbound(env, "as", jas);
105 const char *name = env->GetStringUTFChars(static_cast<jstring>(jname), 0);
107 const char* property = sg_zone_get_property_value(as, name);
112 jobject jproperty = env->NewStringUTF(property);
114 env->ReleaseStringUTFChars(static_cast<jstring>(jname), name);
119 JNIEXPORT jobjectArray JNICALL Java_org_simgrid_msg_As_getHosts(JNIEnv * env, jobject jas)
124 const simgrid::s4u::NetZone* as = jnetzone_get_native(env, jas);
126 jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
130 std::vector<simgrid::s4u::Host*> table = as->get_all_hosts();
132 jtable = env->NewObjectArray(static_cast<jsize>(table.size()), cls, nullptr);
135 jxbt_throw_jni(env, "Hosts table allocation failed");
140 for (auto const& host : table) {
141 jhost = static_cast<jobject>(host->extension(JAVA_HOST_LEVEL));
143 jname = env->NewStringUTF(host->get_cname());
145 jhost = Java_org_simgrid_msg_Host_getByName(env, cls, jname);
147 env->ReleaseStringUTFChars(static_cast<jstring>(jname), host->get_cname());
150 env->SetObjectArrayElement(jtable, index, jhost);