The Esri Geometry API for Java is a powerful tool designed to enable spatial data processing seamlessly within third-party data-processing solutions. If you are a developer working on custom MapReduce-based applications for Hadoop, this API will be instrumental in your spatial data operations. Let’s dive into how to get started with this exceptional tool!

Features of the Esri Geometry API

• Create simple geometries through the API or by importing from formats like JSON, WKT, and Shape.
• Perform spatial operations such as union, difference, intersect, clip, cut, and buffer.
• Conduct topological relationship tests including equals, within, contains, crosses, and touches.

Instructions for Building the Source

Follow these steps to successfully build the Esri Geometry API from the source:

1. Download and unzip the .zip file, or clone the repository from GitHub.
2. Open your command line and navigate to the cloned directory.
3. Run the following command to build the jar:

mvn compile

4. Next, deploy the esri-geometry-api.jar to your target system and add a reference to it in your Java project.
5. To run unit tests, simply execute:

mvn test

Using the Esri Geometry API as a Maven Dependency

If you prefer to use the API as a Maven dependency, incorporate the following XML snippet into your pom.xml:

<dependency>
    <groupId>com.esri.geometry</groupId>
    <artifactId>esri-geometry-api</artifactId>
    <version>2.2.4</version>
</dependency>

Requirements

• Java JDK 1.6 or greater is required.
• Ensure you have the Apache Maven build system installed.
• Experience developing MapReduce applications for Apache Hadoop is necessary.
• Familiarity with text-based spatial data formats such as JSON or WKT would be beneficial.

Documentation and Resources

For deeper insights, refer to the following documentation and resources:

• geometry-api-java Wiki
• geometry-api-java Javadoc
• ArcGIS Geodata Resource Center
• ArcGIS Blog
• Twitter @esri

Troubleshooting

While working with the Esri Geometry API, you might encounter some issues. Here are some troubleshooting tips to guide you:

• Ensure Java JDK 1.6 or greater is properly installed.
• If you run into errors while building, verify that your Maven setup is correct.
• Check the console output for any specific errors and refer back to the documentation for clarification.
• If all else fails, feel free to submit an issue or feature request on GitHub.

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