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ileasile/classloader-graphs.ipynb

Created August 7, 2025 10:48
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classloader-graphs.ipynb
{
"cells" : [ {
"cell_type" : "code",
"metadata" : {
"collapsed" : true,
"ExecuteTime" : {
"end_time" : "2025-08-07T10:45:32.912247Z",
"start_time" : "2025-08-07T10:45:04.821098Z"
}
},
"source" : [ "%useLatestDescriptors\n", "%use intellij-platform\n", "%use kraphviz" ],
"id" : "3c6eaa088a894984",
"outputs" : [ {
"data" : {
"text/plain" : [ "IntelliJ Platform integration is loaded" ]
},
"metadata" : { },
"output_type" : "display_data",
"jetTransient" : {
"display_id" : null
}
} ],
"execution_count" : 1
}, {
"metadata" : {
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}
},
"cell_type" : "code",
"source" : [ "import guru.nidi.graphviz.model.Factory.mutGraph\n", "import guru.nidi.graphviz.model.Factory.mutNode\n", "import guru.nidi.graphviz.model.MutableGraph\n", "import guru.nidi.graphviz.model.MutableNode\n", "\n", "fun <T> createGraph(\n", " nodes: Collection<T>,\n", " getParents: (T) -> Collection<T>,\n", " getLabel: (Int, T) -> String = { index, _ -> index.toString() }\n", "): Graphviz {\n", " val nodeToIndex = nodes.withIndex().associate { it.value to it.index }\n", "\n", " val nodeMap = buildMap<Int, MutableNode> {\n", " for ((index, node) in nodes.withIndex()) {\n", " val label = getLabel(index, node)\n", " put(index, mutNode(label))\n", " }\n", " }\n", "\n", " for ((childIndex, child) in nodes.withIndex()) {\n", " for (parent in getParents(child)) {\n", " val parentIndex = nodeToIndex[parent]\n", " if (parentIndex != null) {\n", " nodeMap[childIndex]?.addLink(nodeMap[parentIndex]!!)\n", " }\n", " }\n", " }\n", "\n", " val graph = mutGraph(\"G\").setDirected(true).apply {\n", " for (node in nodeMap.values) {\n", " add(node)\n", " }\n", " }\n", "\n", " return Graphviz.fromGraph(graph)\n", "}" ],
"id" : "f592de196dfa25fe",
"outputs" : [ ],
"execution_count" : 2
}, {
"metadata" : {
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"end_time" : "2025-08-07T10:45:33.694377Z",
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}
},
"cell_type" : "code",
"source" : [ "import com.intellij.ide.plugins.cl.PluginClassLoader\n", "\n", "fun getParents(classLoader: ClassLoader): List<ClassLoader> {\n", " val allParents = when {\n", " classLoader is PluginClassLoader -> classLoader.getAllParentsClassLoaders().toList()\n", " else -> generateSequence(classLoader.parent) { it.parent }.toList()\n", " }\n", "\n", " return allParents//.filterNot { it === classLoader }\n", "}" ],
"id" : "b6fc58ca4b62b9bc",
"outputs" : [ ],
"execution_count" : 3
}, {
"metadata" : {
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}
},
"cell_type" : "code",
"source" : [ "import com.intellij.openapi.extensions.PluginId\n", "\n", "val propPlugin = pluginManager.findEnabledPlugin(PluginId.getId(\"com.intellij.properties\"))" ],
"id" : "91d9f399bd036dd6",
"outputs" : [ ],
"execution_count" : 4
}, {
"metadata" : {
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},
"cell_type" : "code",
"source" : [ "import com.intellij.ide.plugins.PluginMainDescriptor\n", "\n", "val classLoaders = propPlugin.let { plugin ->\n", " plugin as PluginMainDescriptor\n", " plugin.content.modules\n", " .map { it.descriptor.classLoader } + listOf(plugin.classLoader)\n", "}\n", "\n", "val allClassLoaders = classLoaders.flatMap { getParents(it) + it }.distinct()" ],
"id" : "d44daf643fb9de60",
"outputs" : [ ],
"execution_count" : 5
}, {
"metadata" : {
"ExecuteTime" : {
"end_time" : "2025-08-07T10:45:55.128002Z",
"start_time" : "2025-08-07T10:45:47.503032Z"
}
},
"cell_type" : "code",
"source" : "createGraph(allClassLoaders, ::getParents)",
"id" : "ae79c4a3321e19fa",
"outputs" : [ {
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},
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"text/plain" : [ "true" ]
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