feat: add helper functions

Author: s1n7ax

lua/java-core/utils/event.lua

@@ -0,0 +1,21 @@
+local M = {}
+
+---@param opts { once: boolean, group: number, callback: fun(client: vim.lsp.Client) }
+function M.on_jdtls_attach(opts)
+	local id
+
+	id = vim.api.nvim_create_autocmd('LspAttach', {
+		group = opts.group,
+		callback = function(args)
+			local client = vim.lsp.get_client_by_id(args.data.client_id)
+
+			if client and client.name == 'jdtls' then
+				opts.callback(client)
+
+				vim.api.nvim_del_autocmd(id)
+			end
+		end,
+	})
+end
+
+return M

lua/java-core/utils/instance-factory.lua

@@ -0,0 +1,32 @@
+local M = {}
+
+---@return vim.lsp.Client
+function M.get_client()
+	local clients = vim.lsp.get_clients({ name = 'jdtls' })
+
+	if #clients < 1 then
+		local message = 'No jdtls client found!'
+		require('java-core.utils.notify').error(message)
+		require('java.utils.log').error(message)
+		error(message)
+	end
+
+	return clients[1]
+end
+
+function M.get_jdtls()
+	local JdtlsClient = require('java-core.ls.clients.jdtls-client')
+	return JdtlsClient(M.get_client())
+end
+
+function M.get_debug()
+	local DebugClient = require('java-core.ls.clients.java-debug-client')
+	return DebugClient(M.get_client())
+end
+
+function M.get_test()
+	local TestClient = require('java-core.ls.clients.java-test-client')
+	return TestClient(M.get_client())
+end
+
+return M