Module: BDBXMLJE

Includes:
Java
Included in:
Persist
Defined in:
lib/models/modbdbxmlje.rb

Constant Summary collapse

DB_ROOT = 
db_path
DB_NAME = 

      
    

  







  
    

      Instance Method Summary
      collapse
    


    
  


  

  

    
Instance Method Details


    
      

  

  
    #create_doc(msg, key)  ⇒ Object 
  

  

  




  

    
      


83
84
85
86
87
88
89
90
91
92

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 83

def create_doc(msg,key)
  #removed the transaction bit since causes error when running inside Tomcat under JRuby
  #txn = $man.createTransaction()
  a = $man.createDocument()
  a.setContent(msg)
  a.setName(key)
  $con.putDocument(key,msg)
  #$con.putDocument(txn,key,msg)
  #txn.commit()
end

    		
  





    
      

  

  
    #create_key_and_doc(msg)  ⇒ Object 
  

  

  




  

    
      


73
74
75
76
77

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 73

def create_key_and_doc(msg)
  key = UUID.new
  create_doc(msg,key)
  key
end

    		
  





    
      

  

  
    #find(query)  ⇒ Object 
  

  

  




  

    
      


105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 105

def find(query)
  cxt = $man.createQueryContext()
  results = $man.query(query, cxt)
  if (results.size() == 0) then
    return nil
  end
  #results is essentially an array of result lines
  #a single result will span a number of output lines, e.g. outer joined
  #MTA info will appear with a CRLF separator
  #the following code makes up single logical result rows based on the lines between
  #successive pairs of {} braces
  #
  #it should be noted that the result set from the xqueries is intended to be
  #a valid ruby block
  #this allows the result to be used to instantiate an active record object
  #with no further manipulation required    
  rows = []
  i = 0
  while results.hasNext()
    if rows[i] == nil
      rows[i] = ""
    end
    r = results.next().asString()
    rows[i] << r.chomp
    if (r.match(']}'))
      i = i + 1
    end 
  end   
  rows
end

    		
  





    
      

  

  
    #read_doc(key)  ⇒ Object 
  

  

  




  

    
      


79
80
81

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 79

def read_doc(key)
  $con.getDocument(key).getContentAsString() 
end

    		
  





    
      

  

  
    #replace_doc(msg, key)  ⇒ Object 
  

  

  




  

    
      


94
95
96
97
98
99
100
101
102
103

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 94

def replace_doc(msg,key)
  #removed the transaction bit since causes error when running inside Tomcat under JRuby
  #txn = $man.createTransaction()
  #a = $con.getDocument(txn,key)
  a = $con.getDocument(key)
  a.setContent(msg)
  #$con.updateDocument(txn,a)
  $con.updateDocument(a)
  #txn.commit
end

    		
  





    
      

  

  
    #setup_env  ⇒ Object 
  

  

  




  

    
      


41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71

    		
    
      
# File 'lib/models/modbdbxmlje.rb', line 41

def setup_env
  #setup UUID state file
  UUID.config(:state_file => "#{DB_ROOT}/uuid.state",
                :sequence => rand(0x100000000),
                :mac_addr => '00:19:e3:36:60:f5')

  begin
    envConf = JEnvironmentConfig.new()
    envConf.setAllowCreate(true)
    envConf.setTransactional(true)
    envConf.setInitializeCache(true);      

    f = JFile.new(DB_ROOT)
    $env = JEnvironment.new(f, envConf);
    
    manConf = XmlManagerConfig.new()
    manConf.setAllowExternalAccess(true)
    $man = XmlManager.new($env,manConf)
    
    if (!File.exist?("#{DB_ROOT}/#{DB_NAME}"))
      $con = $man.createContainer(DB_NAME)
    else
      $con = $man.openContainer(DB_NAME)
    end
    
    $base = "."
  rescue NativeException => e
    puts "Native exception's cause: #{e.cause}"
    raise
  end
end