Add MARC import example

git-svn-id: https://svn.apache.org/repos/asf/incubator/solr/trunk@496205 13f79535-47bb-0310-9956-ffa450edef68

client/ruby/solrb/examples/marc/marc_importer.rb

@@ -0,0 +1,54 @@
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 'marc'
+require 'solr'
+
+solr_url = ENV["SOLR_URL"] || "http://localhost:8983/solr"
+marc_filename = ARGV[0]
+
+mapping = {
+  :id => Proc.new {|r| r['001'].value},
+  :subject_genre_facet => ['650v', '655a'],
+  :subject_era_facet => '650y',
+  :title_text => '245a'
+}
+
+connection = Solr::Connection.new(solr_url)
+
+reader = MARC::Reader.new(marc_filename)
+count = 0
+for record in reader
+  doc = {}
+  mapping.each do |key,value|
+    if value.kind_of? Proc
+      doc[key] = value.call(record)
+    else
+      data = []
+      value.each do |v|
+        field = v[0,3]
+        subfield = v[3].chr
+        data << record[field][subfield] rescue nil
+      end
+      data.compact!
+      doc[key] = data if not data.empty?
+    end
+  end
+
+  connection.send(Solr::Request::AddDocument.new(doc))
+  
+  count += 1
+  
+  puts count if count % 100 == 0
+end
+
+connection.send(Solr::Request::Commit.new)