Initial draft

.gitignore

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+.DS_Store
+.project
+.idea
+nbproject
+.*~
+tmp
+*.swp
+TAGS

NOTICE

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+Apache POI
+Copyright 2009 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
+This product contains the DOM4J library (http://www.dom4j.org).
+Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
+
+This product contains parts that were originally based on software from BEA.
+Copyright (c) 2000-2003, BEA Systems, <http://www.bea.com/>.
+
+This product contains W3C XML Schema documents. Copyright 2001-2003 (c)
+World Wide Web Consortium (Massachusetts Institute of Technology, European
+Research Consortium for Informatics and Mathematics, Keio University)
+
+This product contains the Piccolo XML Parser for Java
+(http://piccolo.sourceforge.net/). Copyright 2002 Yuval Oren.
+
+This product contains the chunks_parse_cmds.tbl file from the vsdump program.
+Copyright (C) 2006-2007 Valek Filippov (frob@df.ru)

README.markdown

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+jruby-poi
+=========
+
+This little gem provides an alternative interface to the Apache POI java library, for jruby.
+
+INSTALL:
+========
+
+* gem install jruby-poi
+
+Contributors
+============
+
+* [Scott Deming](http://github.com/sdeming)
+
+Note on Patches/Pull Requests
+=============================
+
+* Fork the project.
+* Make your feature addition or bug fix.
+* Add tests for it. This is important so I don't break it in a future version unintentionally.
+* Commit, do not mess with rakefile, version, or history.
+  (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
+* Send me a pull request. 
+
+Copyright
+=========
+
+Copyright (c) 2010 Scott Deming and others.
+See NOTICE and LICENSE for details.
+

Rakefile

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+begin
+  require 'jeweler'
+  Jeweler::Tasks.new do |gemspec|
+    gemspec.name = "jruby-poi"
+    gemspec.summary = "Apache POI class library for jruby"
+    gemspec.description = "A rubyesque library for manipulating spreadsheets and other document types for jruby, using Apache POI."
+    gemspec.email = "sdeming@makefile.com"
+    gemspec.homepage = "http://github.com/sdeming/jruby-poi"
+    gemspec.authors = ["Scott Deming"]
+  end
+rescue LoadError
+  puts "Jeweler not available. Install it with: gem install jeweler"
+end
+

lib/poi.rb

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+JRUBY_POI_LIB_PATH=File.expand_path(File.dirname(__FILE__))
+
+# Java
+require 'java'
+require File.join(JRUBY_POI_LIB_PATH, 'poi-3.6-20091214.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'poi-ooxml-3.6-20091214.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'poi-ooxml-schemas-3.6-20091214.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'poi-scratchpad-3.6-20091214.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'poi-contrib-3.6-20091214.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'ooxml-lib', 'xmlbeans-2.3.0.jar')
+require File.join(JRUBY_POI_LIB_PATH, 'ooxml-lib', 'dom4j-1.6.1.jar')
+
+# Ruby
+require File.join(JRUBY_POI_LIB_PATH, 'poi', 'workbook')

lib/poi/workbook.rb

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+require File.join(JRUBY_POI_LIB_PATH, 'poi', 'workbook', 'workbook')
+require File.join(JRUBY_POI_LIB_PATH, 'poi', 'workbook', 'worksheet')
+require File.join(JRUBY_POI_LIB_PATH, 'poi', 'workbook', 'row')
+require File.join(JRUBY_POI_LIB_PATH, 'poi', 'workbook', 'cell')

lib/poi/workbook/cell.rb

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+module POI
+  class Cells
+    include Enumerable
+
+    def initialize(row)
+      @row = row
+      @poi_row = row.poi_row
+    end
+
+    def [](index)
+      Cell.new(@poi_row.getCell(index))
+    end
+
+    def size
+      @poi_row.getPhysicalNumberOfCells
+    end
+
+    def each
+      it = @poi_row.cellIterator
+      yield Cell.new(it.next) while it.hasNext
+    end
+  end
+
+  class Cell
+    def initialize(cell)
+      @cell = cell
+    end
+
+    def index
+      @cell.getColumnIndex 
+    end    
+
+    def to_s
+      @cell.getStringCellValue
+    end
+
+    def poi_cell
+      @cell
+    end
+  end
+end
+

lib/poi/workbook/row.rb

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+module POI
+  class Rows
+    include Enumerable
+
+    def initialize(worksheet)
+      @worksheet = worksheet
+      @poi_worksheet = worksheet.poi_worksheet
+    end
+
+    def [](index)
+      Row.new(@poi_worksheet.getRow(index))
+    end
+
+    def size 
+      @poi_worksheet.getPhysicalNumberOfRows 
+    end
+
+    def each
+      it = @poi_worksheet.rowIterator
+      yield Row.new(it.next) while it.hasNext
+    end
+  end
+
+  class Row
+    def initialize(row)
+      @row = row
+    end
+
+    def cells
+      Cells.new(self)
+    end
+
+    def index
+      @row.getRowNum
+    end    
+
+    def poi_row
+      @row
+    end
+  end
+end
+

lib/poi/workbook/workbook.rb

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+module POI
+  class Workbook
+    def self.open(filename)
+      raise Exception, "FileNotFound" unless File.exists? filename
+      instance = self.new(filename)
+
+      if block_given?
+        result = yield instance
+        return result 
+      end
+
+      instance
+    end
+
+    def initialize(filename)
+      @filename = filename
+      @workbook = org.apache.poi.ss.usermodel.WorkbookFactory.create(java.io.FileInputStream.new(filename))
+    end
+
+    def save
+      @workbook.write(java.io.FileOutputStream.new(@filename))
+    end
+
+    def save_as(filename)
+      @workbook.write(java.io.FileOutputStream.new(filename))
+    end
+
+    def close
+      #noop
+    end
+
+    def worksheets
+      Worksheets.new(self)
+    end
+
+    def poi_workbook
+      @workbook
+    end
+  end
+end
+

lib/poi/workbook/worksheet.rb

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+module POI
+  class Worksheets
+    include Enumerable
+
+    def initialize(workbook)
+      @workbook = workbook
+      @poi_workbook = workbook.poi_workbook
+    end
+
+    def [](index)
+      worksheet = case
+        when index.kind_of?(Numeric)
+          @poi_workbook.getSheetAt(index)
+        else 
+          @poi_workbook.getSheet(index)
+      end
+      Worksheet.new(worksheet)
+    end
+
+    def size
+      @poi_workbook.getNumberOfSheets
+    end
+
+    def each
+      (0...size).each { |i| yield Worksheet.new(@poi_workbook.getSheetAt(i)) }
+    end
+  end
+
+  class Worksheet
+    def initialize(worksheet = nil)
+      @worksheet = worksheet
+    end
+
+    def name
+      @worksheet.getSheetName
+    end
+
+    def rows
+      Rows.new(self)
+    end
+
+    def poi_worksheet
+      @worksheet
+    end
+  end
+end
+

specs/io_spec.rb

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+require File.join(File.dirname(__FILE__), 'spec_helper')
+
+describe POI::Workbook do
+  it "should read an xlsx file" do 
+    name = TestDataFile.expand_path("simple_with_picture.xlsx")
+    book = nil
+    lambda { book = POI::Workbook.open(name) }.should_not raise_exception
+    book.should be_kind_of POI::Workbook
+  end
+
+  it "should read an xls file" do 
+    name = TestDataFile.expand_path("simple_with_picture.xls")
+    book = nil
+    lambda { book = POI::Workbook.open(name) }.should_not raise_exception
+    book.should be_kind_of POI::Workbook
+  end
+
+  it "should read an ods file" do 
+    pending "get a valid, non excel produced ods file" do
+      name = TestDataFile.expand_path("simple_with_picture.ods")
+      book = nil
+      lambda { book = POI::Workbook.open(name) }.should_not raise_exception
+      book.should be_kind_of POI::Workbook
+    end
+  end
+
+  it "should write an open workbook" do
+    name = TestDataFile.expand_path("simple_with_picture.xlsx")
+    POI::Workbook.open(name) do |book|
+      lambda { book.save }.should_not raise_exception
+    end
+  end
+
+  it "should write an open workbook to a new file" do
+    pending "write to a temp directory to avoid git polution" do
+      name = TestDataFile.expand_path("simple_with_picture.xlsx")
+      new_name = TestDataFile.expand_path("saved-as.xlsx")
+
+      POI::Workbook.open(name) do |book|
+        lambda { book.save_as(new_name) }.should_not raise_exception
+      end
+
+      book = nil
+      lambda { book = POI::Workbook.open(new_name) }.should_not raise_exception
+      book.should be_kind_of POI::Workbook
+
+      File.exists?(new_name).should == true
+    end
+  end
+end

specs/spec_helper.rb

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+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'lib', 'poi'))
+
+class TestDataFile
+  def self.expand_path(name)
+    File.expand_path(File.join(File.dirname(__FILE__), 'data', name))
+  end
+end
+
+Spec::Runner.configure do |config|
+end