jasper-rails.rb in jasper-rails-1.0.0

- old
+ new

@@ -1,18 +1,42 @@
+# 
+# Copyright (C) 2012 Marlus Saraiva, Rodrigo Maia
+# 
+# Permission is hereby granted, free of charge, to any person obtaining 
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+# 
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
 require "jasper-rails/version"
 require "rails"
 require "rjb"
 
-Mime::Type.register "application/pdf", :pdf
+if Mime::Type.lookup_by_extension("pdf").nil?
+  Mime::Type.register "application/pdf", :pdf
+end
 
 module JasperRails
 
   classpath = '.'
   Dir["#{File.dirname(__FILE__)}/java/*.jar"].each do |jar|
     classpath << File::PATH_SEPARATOR + File.expand_path(jar)
   end
-
+  
   Dir["lib/*.jar"].each do |jar|
     classpath << File::PATH_SEPARATOR + File.expand_path(jar)
   end
 
   Rjb::load( classpath, ['-Djava.awt.headless=true','-Xms128M', '-Xmx256M'] )
@@ -21,11 +45,12 @@
   JasperCompileManager        = Rjb::import 'net.sf.jasperreports.engine.JasperCompileManager'
   JasperExportManager         = Rjb::import 'net.sf.jasperreports.engine.JasperExportManager'
   JasperFillManager           = Rjb::import 'net.sf.jasperreports.engine.JasperFillManager'
   JasperPrint                 = Rjb::import 'net.sf.jasperreports.engine.JasperPrint'
   JRXmlUtils                  = Rjb::import 'net.sf.jasperreports.engine.util.JRXmlUtils'
-  JRXPathQueryExecuterFactory = Rjb::import 'net.sf.jasperreports.engine.query.JRXPathQueryExecuterFactory'
+  # This is here to avoid the "already initialized constant QUERY_EXECUTER_FACTORY_PREFIX" warnings.
+  JRXPathQueryExecuterFactory = silence_warnings{Rjb::import 'net.sf.jasperreports.engine.query.JRXPathQueryExecuterFactory'}
   InputSource                 = Rjb::import 'org.xml.sax.InputSource'
   StringReader                = Rjb::import 'java.io.StringReader'
   HashMap                     = Rjb::import 'java.util.HashMap'
   ByteArrayInputStream        = Rjb::import 'java.io.ByteArrayInputStream'
   JavaString                  = Rjb::import 'java.lang.String'
@@ -54,10 +79,9 @@
           # Fill the report
           input_source = InputSource.new
           input_source.setCharacterStream(StringReader.new(datasource.to_xml(options).to_s))
           data_document = silence_warnings do
             # This is here to avoid the "already initialized constant DOCUMENT_POSITION_*" warnings.
-            # It's harmless. But pretty annoying.
             JRXmlUtils._invoke('parse', 'Lorg.xml.sax.InputSource;', input_source)
           end
 
           jasper_params.put(JRXPathQueryExecuterFactory.PARAMETER_XML_DATA_DOCUMENT, data_document)
           jasper_print = JasperFillManager.fillReport(jasper_file, jasper_params)