add eclim's checker extension, when eclim is running , it can instead of syntastic

autoload/airline/deprecation.vim

@@ -19,6 +19,7 @@ function! airline#deprecation#check()
         \ [ 'g:airline_enable_branch', 'g:airline#extensions#branch#enabled' ],
         \ [ 'g:airline_enable_bufferline', 'g:airline#extensions#bufferline#enabled' ],
         \ [ 'g:airline_enable_syntastic', 'g:airline#extensions#syntastic#enabled' ],
+        \ [ 'g:airline_enable_eclim', 'g:airline#extensions#eclim#enabled' ],
         \ ]
   for test in tests
     if exists(test[0])

autoload/airline/extensions.vim

@@ -181,8 +181,13 @@ function! airline#extensions#load()
     call airline#extensions#virtualenv#init(s:ext)
   endif
 
+  if (get(g:, 'airline#extensions#eclim#enabled', 1) && get(g:, 'airline_enable_eclim', 1))
+        \ && exists(':ProjectCreate')
+    call airline#extensions#eclim#init(s:ext)
+  endif
+
   if (get(g:, 'airline#extensions#syntastic#enabled', 1) && get(g:, 'airline_enable_syntastic', 1))
-        \ && exists(':SyntasticCheck')
+        \ && exists(':SyntasticCheck') && !exists('g:eclim_instead_syntastic')
     call airline#extensions#syntastic#init(s:ext)
   endif
 

autoload/airline/extensions/eclim.vim

@@ -0,0 +1,30 @@
+" MIT License. Copyright (c) 2013 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+"if !exists('g:eclim_instead_syntastic')
+"let g:eclim_instead_syntastic = 0
+"endif
+
+"if g:eclim_instead_syntastic == 1
+"finish
+"endif
+if !exists(':ProjectCreate')
+  finish
+endif
+
+function! airline#extensions#eclim#get_warnings()
+  let eclimList = eclim#display#signs#GetExisting()
+  if !empty(eclimList)
+    let errorsLine = eclimList[0]['line']
+    let errorsNumber = len(eclimList)
+    let errors = "[Warring: line:".string(errorsLine)." (".string(errorsNumber).")]"
+    return errors.(g:airline_symbols.space)
+  endif
+  return ''
+endfunction
+
+function! airline#extensions#eclim#init(ext)
+  if !exists('g:eclim_instead_syntastic')
+    let g:eclim_instead_syntastic = 1
+  endif
+  call airline#parts#define_function('eclim', 'airline#extensions#eclim#get_warnings')
+endfunction

autoload/airline/init.vim

@@ -78,7 +78,7 @@ function! airline#init#bootstrap()
   call airline#parts#define_raw('file', '%f%m')
   call airline#parts#define_raw('linenr', (g:airline_symbols.linenr).'%#__accent_bold#%4l%#__restore__#')
   call airline#parts#define_function('ffenc', 'airline#parts#ffenc')
-  call airline#parts#define_empty(['hunks', 'branch', 'tagbar', 'syntastic', 'whitespace'])
+  call airline#parts#define_empty(['hunks', 'branch', 'tagbar', 'syntastic', 'eclim', 'whitespace'])
 
   unlet g:airline#init#bootstrapping
 endfunction
@@ -107,7 +107,7 @@ function! airline#init#sections()
     let g:airline_section_z = airline#section#create(['%3p%%'.spc, 'linenr', ':%3c '])
   endif
   if !exists('g:airline_section_warning')
-    let g:airline_section_warning = airline#section#create(['syntastic', 'whitespace'])
+    let g:airline_section_warning = airline#section#create(['syntastic', 'eclim', 'whitespace'])
   endif
 endfunction
 

t/init.vim

@@ -62,6 +62,7 @@ describe 'init sections'
     Expect airline#parts#get('branch').raw == ''
     Expect airline#parts#get('tagbar').raw == ''
     Expect airline#parts#get('syntastic').raw == ''
+    Expect airline#parts#get('eclim').raw == ''
     Expect airline#parts#get('whitespace').raw == ''
   end
 end