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digitalnzgeoparser

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资源说明：Attempt to Geo Parse Digital NZ API Records by Placename Extraction

    Digital NZ Geoparser - Automation of Geolocation of Digital NZ records
    Copyright (C) 2009 by Gordon Anderson (gordon.b.anderson@gmail.com)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program. If not, see http://www.gnu.org/licenses/.


= Geoparsing Digital NZ


This code is the web server behind the images seen at http://picasaweb.google.com/gordon.b.anderson/DigitalNZGeoparsing

It is currently *NOT* suitable for production use, as some scaffolding needs to be removed from the model fields.  Each uncached search also hits the Digital NZ API 21 times (1 for the search, 20 for search metadata) so it is recommended only for research purposes within a protected network at present.


= Installation

== Install Ruby, Ruby on Rails

These are the commands I used to install a working copy of the geoparser on a clean Jaunty instance.

    $ sudo apt-get install ruby rdoc irb memcached
    $ wget rubygems-1.3.5.tgz
    $ tar zxvf rubygems-1.3.5.tgz 
    $ cd rubygems-1.3.5/
    $ sudo ln -s /usr/bin/gem1.8 /usr/bin/gem
    $ sudo gem install rails
    $ sudo apt-get install git git-core

== Clone the Repository

    $ mkdir ~/digitalnz
    $ cd ~/digitalnz
    $ git-clone git://github.com/gordonbanderson/digitalnzgeoparser.git
    $ cd digitalnzgeoparser/digitalnz


== Install Postgres
Install postgres, make your current user a database superuser, and configure to run on port 5432 with no password check

    $ sudo apt-get install postgresql
    $ sudo su - postgres

User your own username here instead of gordon
    $ createuser gordon
      Shall the new role be a superuser? (y/n) y
    $ exit

Create the database
    $ createdb -E UTF8 digitalnzgeoparser_development

We now need to make postgres listen on 5432
Edit  /etc/postgresql/8.3/main/postgresql.conf  as a sudo'd user 

Insert
    listen_addresses = 'localhost'
before
    #listen_addresses = 'localhost'         # what IP address(es) to listen on;

Restart postgres
    $ sudo /etc/init.d/postgresql-8.3 restart

To check this worked do
    $ netstat -tln | grep 5432

You should see
    tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN     
    tcp6       0      0 ::1:5432                :::*                    LISTEN 


Now edit the postgres configuration file  /etc/postgresql/8.3/main/pg_hba.conf

Change
    host    all         all         127.0.0.1/32          md5
to
    host    all         all         127.0.0.1/32          trust

(Happy to have suggested a more secure set up, just trying to get the service up and running)

== Rails Configuration
Copy the database config file and edit as appropriate:
    $ cp config/database.yml.example config/database.yml


Copy the environment file and add the API keys
    $ cp config/environment.rb.example config/environment.rb


Edit the following using an editor of your choice:

Memcache:
    #On debian use 127.0.0.1:11211
    memcache_servers = [ 'YOUR_MEMCACHE_SERVER:YOUR_MEMCACHE_PORT' ]


Google maps, get this from http://code.google.com/apis/maps/signup.html:
    GOOGLE_MAPS_API_KEY='YOUR GOOGLE MAPS KEY'

Digital NZ, get this from http://www.digitalnz.org/terms/developers-api
    DIGITAL_NZ_KEY='YOUR_DIGITALNZ_KEY'

Open Calais, get this from http://www.opencalais.com/user/register
    CALAIS_KEY = 'YOUR_OPEN_CALAIS_KEY'


Unfortunately the mapping plug duplicate the google maps key
    $ cp config/gmaps_api_key.yml.example config/gmaps_api_key.yml

Edit this and under development add your google maps API key

For localhost:3000 the key in both cases is            ABQIAAAA0cJpnWSrLTBmLnxPL4nExBTX2XchcwgyHzp4Xo0DHRAzt2aLjhQQr2vWuuCy6CUVfk_5bsJzQrUfogs


== Install Required Gems and Packages

Allow github gems
    $ gem sources -a http://gems.github.com

Get installing:
    $ sudo gem install simplehttp
    $ sudo gem install memcache-client
    $ sudo gem install postgres-pr
    $ sudo gem install mislav-will_paginate
    $ sudo apt-get install libhttp-access2-ruby ruby-dev curl
    $ sudo apt-get install libcurl4-gnutls-dev libxml2 libxml2-dev libxslt libxslt-dev libxslt1-dev libxslt1-dev 
    $ sudo gem install rc-rest
    $ sudo gem install jsl-placemaker
    $ sudo gem install hpricot
    $ sudo gem install digitalnz
    $ sudo gem install json
    $ sudo rake gems:install

Populate the database
    $ rake db:migrate


We need to install a tweaked copy of the digitalnz gem.  In a separate terminal on the same machine:

    $ cd /tmp
    $ git clone git://github.com/jamesotron/digitalnz.git
    $ cd digitalnz
    $ git-apply /your/path/to/digitalnzgeoparser/thirdparty/patches/digitalnzgem/digitalnzgemfacets.patch
    $ rake gem && sudo gem install pkg/digitalnz-0.1.2.gem

== Run the Server
Execute

    $ ./script/server

Go to YOUR_IP_ADDRESS:3000 and you should see a page with a search term.  Type in a search term, e.g. 'roseneath' and wait around 20 seconds for the response.  The lag is due to the API being hit 21 times, once for the search and 20 times for metadata.  All responses are cached in the database so the second hit will be less painful :)

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