HBW-61 Add support for Camunda

config/hbw.default.yml

@@ -1,4 +1,6 @@
 hbw:
+  adapter: camunda
+
   order:
     entity_code_key: homsOrderCode
 

hbw/app/models/hbw/activiti/adapter.rb

@@ -1,41 +1,17 @@
 module HBW
   module Activiti
-    # rubocop:disable Metrics/ClassLength
-    class Adapter
+    class Adapter < ::HBW::Common::Adapter
       include HBW::Inject[:api, :config]
 
-      def entity_code_key(entity_class)
-        config.fetch(entity_class)[:entity_code_key]
-      end
-
-      # TODO: cache it until new user is added
-      def users
-        HBW::BPMUser.fetch_all
-      end
-
-      def user_exist?(user_email)
-        user = HBW::BPMUser.with_connection(api) do
-          HBW::BPMUser.fetch(user_email)
-        end
-
-        !user.nil?
-      end
-
-      def users_lookup(pattern)
-        d_pattern = pattern.mb_chars.downcase.to_s
-        users.select do |user|
-          user.values.find { |v| v.mb_chars.downcase.include?(d_pattern) }
-        end
-      end
-
       def process_instances(entity_code, entity_class)
         response = api.post(
-          'query/process-instances', variables: [
-            name: entity_code_key(entity_class),
-            value: entity_code,
-            operation: :equals,
-            type: :string
-          ])
+            'query/process-instances',
+            variables: [
+              name:      entity_code_key(entity_class),
+              value:     entity_code,
+              operation: :equals,
+              type:      :string
+            ])
         response.status == 200 && response.body['data'] || []
       end
 
@@ -49,58 +25,12 @@ def submit(user_email, entity_class, task_id, form_data)
         response.status == 200
       end
 
-      # TODO: How to distinguish between running process instance and done
-      # TODO: Think of suspended process instances
-      def bp_running?(entity_code, entity_class, current_user_identifier)
-        !process_instances(entity_code, entity_class).empty? ||
-            !task_list_response(current_user_identifier, entity_code, entity_class, 1000, true).empty?
-      end
-
-      def start_process(bp_code,
-                        user_email,
-                        entity_code,
-                        entity_class)
-        user = HBW::BPMUser.with_connection(api) do
-          HBW::BPMUser.fetch(user_email)
-        end
-        return false unless user
-
-        p_def = process_definition_for_key_like(bp_code)
-        return false unless p_def
-
-        variables = [
-          { name: :initiator,      value: user.id,     type: :string },
-          { name: :initiatorEmail, value: user.email,  type: :string },
-          { name: entity_code_key(entity_class), value: entity_code, type: :string }
-        ]
-
-        response = start_process_response(p_def['id'], variables)
-        response.status == 201
-      end
-
-      def drop_processes(entity_code, entity_class)
-        ids = process_instances(entity_code, entity_class).map { |i| i['id'] }
-        ids.map do |id|
-          response = api.delete("runtime/process-instances/#{id}")
-          response.status == 204
-        end
-        ids.reject { |e| e }.empty?
-      end
-
-      def entity_task_list(user_email, entity_code, entity_class, size = 1000)
-        response = task_list_response(user_email, entity_code, entity_class, size)
-        ::HBW::Task.wrap(response.body['data']) if response.status == 200
-      end
-
-      def task_list(email, entity_class, size = 1000)
-        task_list_response(email, '%', entity_class, size)
-      end
-
-      def form(user_email, entity_class, task_id)
-        task = task_for_email_and_task_id(user_email, entity_class, task_id)
-        HBW::Form.with_connection(api) do
-          HBW::Form.fetch(task, entity_class)
-        end
+      def get_variables(user, entity_class, entity_code)
+        {
+          :initiator                    => { value: user.id,     type: :string },
+          :initiatorEmail               => { value: user.email,  type: :string },
+          entity_code_key(entity_class) => { value: entity_code, type: :string }
+        }
       end
 
       def process_definition_for_key_like(key)
@@ -113,22 +43,6 @@ def start_process_response(id, variables)
                  processDefinitionId: id,
                  variables: variables)
       end
-
-      def task_list_response(email, entity_code, entity_class, size, for_all_users = false)
-        HBW::Task.with_connection(api) do
-          HBW::Task.fetch(email, entity_code, entity_class, size, for_all_users)
-        end
-      end
-
-      def task_for_email_and_task_id(user_email, entity_class, task_id)
-        task_list(user_email, entity_class).find { |task| task.id == task_id }
-      end
-
-      def process_instance_from(proc_inst_id)
-        response = api.get("runtime/process-instances/#{proc_inst_id}")
-        response.body if response.status == 200
-      end
     end
-    # rubocop:enable Metrics/ClassLength
   end
 end

hbw/app/models/hbw/bpm_user.rb

@@ -5,15 +5,27 @@ class BPMUser
 
     class << self
       def fetch(email)
-        definition = do_request(:get, 'identity/users', email: email).first
+        definition = do_request(:get, users_url, email: email).first
         new(definition) if definition
       end
 
       def fetch_all
-        do_request(:get, 'identity/users', firstNameLike: '%').map do |definition|
+        do_request(:get, users_url, firstNameLike: '%').map do |definition|
           new(definition) if definition
         end.compact
       end
+
+      def activiti?
+        HBW::Widget.config.fetch(:adapter) == 'activiti'
+      end
+
+      def users_url
+        if activiti?
+          'identity/users'
+        else
+          'user'
+        end
+      end
     end
 
     definition_reader :id, :email, :first_name, :last_name

hbw/app/models/hbw/camunda/adapter.rb

@@ -0,0 +1,50 @@
+module HBW
+  module Camunda
+    class Adapter < ::HBW::Common::Adapter
+      include HBW::Inject[:api, :config]
+
+      def process_instances(entity_code, entity_class)
+        response = api.post(
+            '/rest/process-instance',
+            variables: [
+              name:     entity_code_key(entity_class),
+              value:    entity_code,
+              operator: :eq
+            ])
+        response.status == 200 && response.body || []
+      end
+
+
+      def submit(user_email, entity_class, task_id, form_data)
+        form_definition = form(user_email, entity_class, task_id)
+
+        variables = form_definition.extract_and_coerce_values(form_data).map do |key, value|
+          { name: key, value: value }
+        end
+
+        variables = variables.map { |item| [item.delete(:name), item]}.to_h
+
+        response = api.post("/rest/task/#{task_id}/submit-form", variables: variables)
+        response.status == 204
+      end
+
+      def get_variables(user, entity_class, entity_code)
+        [
+          { name: :initiator,                    value: user.id,     type: :string },
+          { name: :initiatorEmail,               value: user.email,  type: :string },
+          { name: entity_code_key(entity_class), value: entity_code, type: :string }
+        ]
+      end
+
+      def process_definition_for_key_like(key)
+        response = api.get('/rest/process-definition', keyLike: key, latestVersion: true)
+        response.body.first if response.status == 200
+      end
+
+      def start_process_response(id, variables)
+        api.post("process-definition/#{id}/start",
+                 variables: variables)
+      end
+    end
+  end
+end

hbw/app/models/hbw/common/adapter.rb

@@ -0,0 +1,109 @@
+module HBW
+  module Common
+    class Adapter
+      include HBW::Inject[:api, :config]
+
+      def entity_code_key(entity_class)
+        config.fetch(entity_class)[:entity_code_key]
+      end
+
+      # TODO: cache it until new user is added
+      def users
+        HBW::BPMUser.fetch_all
+      end
+
+      def user_exist?(user_email)
+        user = HBW::BPMUser.with_connection(api) do
+          HBW::BPMUser.fetch(user_email)
+        end
+
+        !user.nil?
+      end
+
+      def users_lookup(pattern)
+        d_pattern = pattern.mb_chars.downcase.to_s
+
+        users.select do |user|
+          user.values.find { |v| v.mb_chars.downcase.include?(d_pattern) }
+        end
+      end
+
+      def process_instances(_, _)
+        raise NotImplementedError
+      end
+
+      def submit(_, _, _, _)
+        raise NotImplementedError
+      end
+
+      # TODO: How to distinguish between running process instance and done
+      # TODO: Think of suspended process instances
+      def bp_running?(entity_code, entity_class, current_user_identifier)
+        !process_instances(entity_code, entity_class).empty? ||
+          !task_list_response(current_user_identifier, entity_code, entity_class, 1000, true).empty?
+      end
+
+      def get_variables(_, _, _)
+        raise NotImplementedError
+      end
+
+      def start_process(bp_code,
+                        user_email,
+                        entity_code,
+                        entity_class)
+        user = HBW::BPMUser.with_connection(api) do
+          HBW::BPMUser.fetch(user_email)
+        end
+        return false unless user
+
+        p_def = process_definition_for_key_like(bp_code)
+        return false unless p_def
+
+        variables = get_variables(user, entity_class, entity_code)
+
+        response = start_process_response(p_def['id'], variables)
+        response.status == 201
+      end
+
+      def drop_processes(entity_code, entity_class)
+        ids = process_instances(entity_code, entity_class).map { |i| i['id'] }
+        ids.map do |id|
+          response = api.delete("runtime/process-instances/#{id}")
+          response.status == 204
+        end
+        ids.reject { |e| e }.empty?
+      end
+
+      def entity_task_list(user_email, entity_code, entity_class, size = 1000)
+        response = task_list_response(user_email, entity_code, entity_class, size)
+        ::HBW::Task.wrap(response.body['data']) if response.status == 200
+      end
+
+      def task_list(email, entity_class, size = 1000)
+        task_list_response(email, '%', entity_class, size)
+      end
+
+      def form(user_email, entity_class, task_id)
+        task = task_for_email_and_task_id(user_email, entity_class, task_id)
+        HBW::Form.with_connection(api) do
+          HBW::Form.fetch(task, entity_class)
+        end
+      end
+
+      def task_list_response(email, entity_code, entity_class, size, for_all_users = false)
+        HBW::Task.with_connection(api) do
+          HBW::Task.fetch(email, entity_code, entity_class, size, for_all_users)
+        end
+      end
+
+      def task_for_email_and_task_id(user_email, entity_class, task_id)
+        task_list(user_email, entity_class).find { |task| task.id == task_id }
+      end
+
+      def process_instance_from(proc_inst_id)
+        response = api.get("runtime/process-instances/#{proc_inst_id}")
+        response.body if response.status == 200
+      end
+    end
+  end
+end

hbw/app/models/hbw/definition.rb

@@ -5,7 +5,7 @@ module Definition
     module ClassMethods
       def definition_reader(*names)
         names.each do |name|
-          key = name.to_s.first + name.to_s.camelize[1..-1]
+          key = name.to_s.camelize(:lower)
           class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
             def #{name}
               definition.fetch('#{key}')

hbw/app/models/hbw/deployment.rb

@@ -2,22 +2,43 @@ module HBW
   class Deployment
     extend HBW::Remote
     include HBW::Definition
+    include HBW::Inject[:config]
 
     class << self
       def fetch(process_definition)
         deployment_id = process_definition.deployment_id
-        resources = do_request(:get, 'repository/deployments/%s/resources' % deployment_id)
-        new(do_request(:get, 'repository/deployments/%s' % deployment_id).merge(
+        resources = do_request(:get, "#{deployments_url_prefix}/%s/resources" % deployment_id)
+        new(do_request(:get, "#{deployments_url_prefix}/%s" % deployment_id).merge(
           'resources' => resources
         ))
       end
+
+      def activiti?
+        HBW::Widget.config.fetch(:adapter) == 'activiti'
+      end
+
+      def deployments_url_prefix
+        if activiti?
+          'repository/deployments'
+        else
+          '/rest/deployment'
+        end
+      end
     end
 
     definition_reader :resources
 
     def resource(resource_id)
       resources.find do |resource|
-        resource['id'] == resource_id
+        resource[resource_key] == resource_id
+      end
+    end
+
+    def resource_key
+      if config.fetch(:adapter) == 'activiti'
+        'id'
+      else
+        'name'
       end
     end
   end