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## EA-OCR Application Guide:
**1. Installations:** 

These installations are mandatory:  **Windows** 
1. Install [VC++ 2015](https://www.microsoft.com/en-au/download/details.aspx?id=53840) - It is require to run Tesseract

2. Install [JDK 8+](http://www.oracle.com/technetwork/java/javase/downloads/index.html)

3. Install [Maven](http://maven.apache.org/) more help [here..](https://www.mkyong.com/maven/how-to-install-maven-in-windows/)

4. Install [GhostScript](https://ghostscript.com/download/gsdnld.html) - PDF to images converter - I used gs923w64.exe

5. Install [ImageMagick](https://imagemagick.org/script/download.php#windows) - Image processing - I used ImageMagick-7.0.7-28-Q16-x64-dll.exe **Choose legacy utilities for ImageMagic** (Check box on install screen)
	
6. Install [Tesseract](https://digi.bib.uni-mannheim.de/tesseract/) - Read text from Images - I used [tesseract-ocr-setup-4.0.0-alpha.20180109.exe](https://github.com/tesseract-ocr/tesseract/wiki/4.0-with-LSTM) **Choose Additional language data; select all Indian languages** (Expand the option, deselect all and select the languages you want)

**2. Pull code from repository**

`$ git clone https://bitbucket.org/aap-elect-analysis/ea-ocr.git`

**3. Update configurations**  
Update the installation paths to `src/main/resources/ea.ocr.properties`

Update Imagemagick, Tesseract and other file processing proprties to `src/main/resources/{state}.json`
Ex. `src/main/resources/haryana.json` 

**4. Build the jar and Start application** 
`{root-dir}\ea-ocr>mvn clean install -Dfile.encoding=UTF-8`

**5. Start files processing**

1. Give read/write permissions to `ea-ocr` directory

2. Check the jar version in `target` directory, use it in below below command and execute it-

`{root-dir}\ea-ocr>java -Dfile.encoding=UTF-8 -jar -Xms2048m -Xmx4096m target/ea-ocr-{jar-version}.jar ea-ocr`
 
3. [click here to start..](http://localhost:8090/swagger-ui.html) the ea-ocr-controller  --> POST 

4. Enter values - pdfFilePath and state(This value should match to filename in src/main/resources/haryana.json)

Know [swagger](http://localhost:8090/v2/api-docs)   

**6. Start multiple instances of application (Scale the application Horizontally)**
1.  Copy the entire workspace `ea-ocr` in multiple directories `{root-dir}\EA\1\ea-ocr`,  `{root-dir}\EA\2\ea-ocr`, `{root-dir}\EA\3\ea-ocr` etc.

2.  Change the port number in each workspace on path `src/main/resources/application.properties` to `server.port=8090`, `server.port=8091`, `server.port=8092` etc

3. Follow the **step:4** and **step:5** to build and deploy the applications.

4. Use application using Urls -

 i.   http://localhost:8090/swagger-ui.html 
 
 ii.  http://localhost:8091/swagger-ui.html
 
 iii. http://localhost:8092/swagger-ui.html

Note: Multiple applications could be start simultaneously, just make sure the RAM size is enough to run multiple applications.
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Help:

Edit a file, create a new file, and clone from Bitbucket in under 2 minutes

When you're done, you can delete the content in this README and update the file with details for others getting started with your repository.

We recommend that you open this README in another tab as you perform the tasks below. You can watch our video for a full demo of all the steps in this tutorial. Open the video in a new tab to avoid leaving Bitbucket.

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Edit a file

You’ll start by editing this README file to learn how to edit a file in Bitbucket.

1. Click Source on the left side.
2. Click the README.md link from the list of files.
3. Click the Edit button.
4. Delete the following text: Delete this line to make a change to the README from Bitbucket.
5. After making your change, click Commit and then Commit again in the dialog. The commit page will open and you’ll see the change you just made.
6. Go back to the Source page.

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Create a file

Next, you’ll add a new file to this repository.

1. Click the New file button at the top of the Source page.
2. Give the file a filename of contributors.txt.
3. Enter your name in the empty file space.
4. Click Commit and then Commit again in the dialog.
5. Go back to the Source page.

Before you move on, go ahead and explore the repository. You've already seen the Source page, but check out the Commits, Branches, and Settings pages.

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Clone a repository

Use these steps to clone from SourceTree, our client for using the repository command-line free. Cloning allows you to work on your files locally. If you don't yet have SourceTree, download and install first. If you prefer to clone from the command line, see Clone a repository.

1. You’ll see the clone button under the Source heading. Click that button.
2. Now click Check out in SourceTree. You may need to create a SourceTree account or log in.
3. When you see the Clone New dialog in SourceTree, update the destination path and name if you’d like to and then click Clone.
4. Open the directory you just created to see your repository’s files.

Now that you're more familiar with your Bitbucket repository, go ahead and add a new file locally. You can push your change back to Bitbucket with SourceTree, or you can add, commit, and push from the command line.