* taskProps.getScheduleTime() may be null, but there is no check if it is null or not

* Add unit test

* Change DOM label

* Change name to lowercase

* Limit customization file content to no more than 3000 lines

* dd branch flow node verification

* datax

* datax add custom

* Change normalize.scss import method and animation.scss license modification

* Resource tree code merge

Co-authored-by: Nsunchaohe <sunzhaohe@linklogis.com>

* Refactor BaseDataSource.isConnectable().

* Add BaseDataSource test.

* Unified handling of JDBC resource releases.

* Fix sonar check error.

* Remove useless logger.

* Refactor BaseDataSource.getJdbcUrl().

* Modify ConnectionUtils.releaseResource().

* Add javadoc

* Remove useless method.

* Add BaseDataSourceTest UT

* Decouple DruidDataSource in ConnectionFactory and cache DataSource
instance

* init dataSource first

* fix code smell

* add unit test

* add unit test

* add unit test

* add unit test

* fix unit test

* delete useless logger

* add LoginTest license

* Delete useless packages

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case

* e2e add project and workflow case
Co-authored-by: chenxingchun <438044805@qq.com>

* Change DOM label

* Change name to lowercase

* Limit customization file content to no more than 3000 lines

* dd branch flow node verification

* datax

* datax add custom

* Change normalize.scss import method and animation.scss license modification

* Change DOM label

* Change name to lowercase

* Limit customization file content to no more than 3000 lines

* dd branch flow node verification

* datax

* datax add custom

* sqlTask failed to run

* get correct attribute value and logger content
Co-authored-by: Nsongqh <songquanhe@foxmail.com>

* push trigger on dev

* fix：#1787

* fix：#1787

* feat:optimizing code

* add licence and  format code

* fix blocker problem

* use error level to log exception

* updated

* optimized the code

* Delete ParameterUtils.java

* rollback source code

* rollback source code

* rollback source code
Co-authored-by: Ndailidong <dailidong66@gmail.com>

* fix #1441

* support custom datax config

* support datax custom config

* support datax custom config

* support datax custom config
Co-authored-by: N张世鸣 <zhangshiming@cvte.com>

* refactor ConnectionFactory to static inner holder Singleton

* remove redundant import

* make getSqlSessionFactory() method private

* fix sonar issue

* remove @Ignore of MailUtilsTest

* add MailUtilsTest to pom.xml to test

* fix MailUtilsTest path error in pom.xml

* modify test method name

* add assert and logger to unit test

* add log

* add log

* add AlertDaoTest

* move AlertDaoTest to new module

* modify test in pom.xml

* remove unnecessary log

* add release notes in 1.2.1 (#1654)

* fix Monitor bug (#1656)

* fix Monitor bug

* fix zk monitor bug

* fix api url (#1673)

* get root path from zookeeper config

* Fixed DAG zoom in and zoom out nodes separated from arrows #1679 (#1685)

* fix api url

* Fixed DAG zoom in and zoom out nodes separated from arrows #1679

* check license and update (#1725)

* Fixed tasks_queue and tasks_kill did not exist in zookeeper #1696 (#1734)
Co-authored-by: Nelonlo <gamelifedong@gmail.com>

* upgrade jackson from 2.9.8 to 2.10.1 (#1767)

* add out put log when master/worker server start (#1769)

* merge hadoop.properties into common.properties

* merge hadoop,zookeeper.properties into common.properties
remove combined.properties/master.properties/worker.properties

* change db user/pwd to test/test

* rename .dolphinscheduler_en.sh to dolphinscheduler_env.sh
remove some unused in install.sh

* add out put log when master/worker server start...

* add start log when servers start

* add check download resource permission in order to fix issues 1770 (#1788)

* merge dev branch front-end code (#1786)

* fix #1775 bug，delete process definition when process instance is running (#1790)

* fix #1775 bug，delete process definition when process instance is running

* revert CONTRIBUTING.md

* fix udfs assignment and task instance page jump #1789 (#1791)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* update method checkDownloadPermission in order to fix issues 1770 (#1794)

* add check download resource permission in order to fix issues 1770

* update method checkDownloadPermission in order to fix issues 1770

* update method listUnauthorizedResource in order to fix issues 1770

* update method listUnauthorizedResource in order to fix issues 1770 (#1797)

* if login user is admin,it will has permission to query all udf function (#1799)

* Fixed space and icon display issues before and after the input box (#1798)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* Fixed space and icon display issues before and after the input box

* add license

* add license

* donot submit task to queue if sub process (#1793)

* dockerfile modify (#1800)

* fix #1775 bug，delete process definition when process instance is running

* revert CONTRIBUTING.md

* dockerfile modify

* dockerfile modify

* dockerfile modify

* Fix data echo, style and popup cannot be closed (#1801)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* Fixed space and icon display issues before and after the input box

* add license

* add license

* Fix data echo, style and popup cannot be closed

* Fix page number loading issue and dag not getting value(#1810) (#1815)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* Fixed space and icon display issues before and after the input box

* add license

* add license

* Fix data echo, style and popup cannot be closed

* Fix page number loading issue and dag not getting value

* [Fix issue #1770]check udf and data source in order to fix issue 1770 (#1817)

* if login user is admin,it will has permission to query all udf function

* check udf and data source in order to fix issue 1770

* check udf and data source in order to fix issue 1770

* check udf and data source in order to fix issue 1770

* check udf and data source in order to fix issue 1770

* check udf and data source in order to fix issue 1770

* revert common.properties

* update the test method name

* remove useless code and import in unit test

* refactor has permission and check permission

* #1813 remove "_001" after the master/server register path in zookeepe (#1824)

* donot submit task to queue if sub process

* [feature] #1813 remove "_001" after the master/server register path in zookeeper (#1820)

* change master/worker register path.

* remove "_" from register path.

* remove install.sh server.servlet.context-path replace (#1823)

* fix #1775 bug，delete process definition when process instance is running

* revert CONTRIBUTING.md

* dockerfile modify

* dockerfile modify

* dockerfile modify

* remove install.sh server.servlet.context-path replace

* Fix DAG add dependent project value exception # 1816 and keep requesting task interface (#1827)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* Fixed space and icon display issues before and after the input box

* add license

* add license

* Fix data echo, style and popup cannot be closed

* Fix page number loading issue and dag not getting value

* Fix DAG add dependent project value exception # 1816 and keep requesting task interface

* rpm package add UI (#1846)

* [fix #1828] when the executor of process instance is not the owner of udf resouce, the path of the read resource file is incorrect (#1847)

* fix issue 1828:get the udf resource path error when create udf function

* update grantResources

* first verify whether udf resource is bound by udf function

* update grantResources

* update testListAuthorizedUdfFunc

* update getUserInfo in order to run success

* add LoggerServer RPC PORT modified. #1848 (#1849)

* fix #1775 bug，delete process definition when process instance is running

* revert CONTRIBUTING.md

* dockerfile modify

* dockerfile modify

* dockerfile modify

* remove install.sh server.servlet.context-path replace

* add LoggerServer RPC PORT modified. #1848

* LoggerService Logger RPC PORT get Error modify . #1848 (#1857)

* fix #1775 bug，delete process definition when process instance is running

* revert CONTRIBUTING.md

* dockerfile modify

* dockerfile modify

* dockerfile modify

* remove install.sh server.servlet.context-path replace

* add LoggerServer RPC PORT modified. #1848

* LoggerService Logger RPC PORT get Error modify . #1848

* Fix UDF function list delete data without refresh and page data display widened #1851 (#1852)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

* Fixed space and icon display issues before and after the input box

* add license

* add license

* Fix data echo, style and popup cannot be closed

* Fix page number loading issue and dag not getting value

* Fix DAG add dependent project value exception # 1816 and keep requesting task interface

* Fix UDF function list delete data without refresh and page data display widened

* [Fix #1828]check whether has permission to download udf file or delete udf function (#1858)

* fix issue 1828:get the udf resource path error when create udf function

* update grantResources

* first verify whether udf resource is bound by udf function

* update grantResources

* update testListAuthorizedUdfFunc

* update getUserInfo in order to run success

* check whether has permission to download udf file or delete udf file

* update listAuthorizedResourceById in ResourceMapper.xml

* add log, don't swallow exception info (#1877)

* Added hints in Resource Center (#1891)

* update jackson version from 2.9.8 to 2.10.1 (#1892)

* update release notes and modify the plugin of rat (#1899)

* modify how to build (#1902)

* update release notes and modify the plugin of rat

* modify how to build

* [maven-release-plugin] prepare release 1.2.1

* [maven-release-plugin] prepare for next development iteration

* get authorized udf resources need exclude all created by self (#1905)

* get authorized udf resources need exclude all created by self

* reset pom version to 1.2.1-SNAPSHOT

* Update ReleaseNotes.md

add detail info

* Update ReleaseNotes.md

* update notice year form 2019 to 2019-2020 (#1907)

* [maven-release-plugin] prepare release 1.2.1

* [maven-release-plugin] prepare for next development iteration

* 当手动重跑历史活着补数的时候对shell和sql脚本中的[YYYYmmddd...]变量赋值与传递的日期，而不是当前日期
Co-authored-by: Nlgcareer <18610854716@163.com>
Co-authored-by: Nbao liang <29528966+lenboo@users.noreply.github.com>
Co-authored-by: Nbreak60 <790061044@qq.com>
Co-authored-by: NTboy <guo.jiwei@immomo.com>
Co-authored-by: Nelonlo <gamelifedong@gmail.com>
Co-authored-by: Nqiaozhanwei <qiaozhanwei@outlook.com>
Co-authored-by: Nzhangchunyang <18910529250@163.com>
Co-authored-by: Ndailidong <dailidong66@gmail.com>
Co-authored-by: N谷雨 <lixun@guyudeMacBook-Pro.local>

Co-authored-by: chenxingchun <438044805@qq.com>

* add e2e

* Optimize PropertyUtils instantiation.

* Fix info error.

* Adapting partial code(file name start with M #2) to the sonar cloud rule

* remove unused import

* fix ResultSet not close

* fix ResultSet not close

* extract code of closing resource to a method

* remove redundant if condition

* modify e2e timeout

* Cache HadoopUtils instance with 7 days expire time

* solve sonar issue

* add kerberos expire time config

* move KERBEROS_EXPIRE_TIME to Constants.java

* Adapting partial code(file name start with M #1) to the sonar cloud rule

* remove unused import