package eu.simstadt.nf;

import java.io.File;

/**
 * Every instance of this class describes an import job for the novaFACTORY. Instances of JobBuilder
 * take JobDescriptions and build XML import job files out of it.
 * 
 * @author Marcel Bruse
 */
public class ImportJobDescriptor implements JobDescriptor {

	/** The version of the novaFACTORY XML export job format. */
	public static final String IMPORT_JOB_VERSION = "1.0.0";
	
	/** The default level on which your CityGML will be stored within the nF. */
	public static final String DEFAULT_LEVEL = "GML";
	
	/** The CityGML file which should be imported through a import job. */
	private File cityGMLFile;
	
	/** The nF product (Produkt) which will keep our CityGML. */
	private String product;
	
	/** The nF leaf (Blatt) of the nF product. */
	private String leaf; 
	
	/** The nF level (Ebene) of the nF product. */
	private String level;
	
	/** The operation to be performed for the feature objects of the CityGML file. */
	private String operation;
	
	/**
	 * @return Returns the nF product which will keep our CityGML.
	 */
	public String getProduct() {
		return product;
	}	
	
	/**
	 * Sets the nF product for this import job.
	 * 
	 * @param product The product of our import job.
	 */
	public void setProduct(String product) {
		this.product = product;
	}
	
	/**
	 * @return Returns the nF leaf of the nF product.
	 */
	public String getLeaf() {
		return leaf;
	}
	
	/**
	 * Sets the nF leaf for the nF product.
	 * 
	 * @param leaf The leaf for the nF product.
	 */
	public void setLeaf(String leaf) {
		this.leaf = leaf;
	}
	
	/**
	 * @return Returns the level of the product.
	 */
	public String getLevel() {
		return level;
	}
	
	/**
	 * Sets the nF level for the nF product.
	 * 
	 * @param level The level for the nF product.
	 */
	public void setLevel(String level) {
		this.level = level;
	}
	
	/**
	 * @return Returns the CityGML file which should be imported through a import job.
	 */
	public File getCityGMLFile() {
		return cityGMLFile;
	}
	
	/**
	 * Sets the CityGML file which should be imported through a import job.
	 * 
	 * @param cityGMLFile The CityGML file which should be imported through a import job.
	 */
	public void setCityGMLFile(File cityGMLFile) {
		this.cityGMLFile = cityGMLFile;
	}
	
	/**
	 * @return Returns the operation which should be conducted for the features of the CityGML file.
	 */
	public String getOperation() {
		return operation;
	}
	
	/**
	 * Sets the operation which should be conducted for the feature objects of the CityGML file.
	 * 
	 * @param operation The operation which should be conducted for the feature object of the CityGML file.
	 */
	public void setOperation(String operation) {
		this.operation = operation;
	}
	
	/**
	 * @return Returns the supported nF job version. This enables your job builder instance to check if
	 * the job version is compatible with itself.
	 */
	@Override
	public String supportsJobVersion() {
		return IMPORT_JOB_VERSION;
	}
	
	/**
	 * This is just a prototype for presentation purposes.
	 */
	public static ImportJobDescriptor getDefaultDescriptor() {
		ImportJobDescriptor descriptor = new ImportJobDescriptor();
		descriptor.setLevel(DEFAULT_LEVEL);
		return descriptor;
	}

	/**
	 * @return Returns true, if product, leaf, level and CityGML file are present.
	 */
	public boolean isValid() {
		boolean result = true;
		if (product.isEmpty()
				&& leaf.isEmpty()
				&& level.isEmpty()
				&& !cityGMLFile.canRead()) {
			result = false;
		}
		return result;
	}

}