package de.superx;

import static org.junit.Assert.assertFalse;

import java.util.Map;

import org.apache.log4j.Logger;
import org.junit.Ignore;
import org.pentaho.di.core.Result;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.logging.LogLevel;
import org.pentaho.di.job.Job;
import org.pentaho.di.job.JobMeta;
import org.pentaho.di.metastore.DatabaseMetaStoreUtil;
import org.pentaho.metastore.api.exceptions.MetaStoreException;
import org.pentaho.metastore.stores.memory.MemoryMetaStore;

@Ignore
public class KettleTestRunner {
    
    private static Logger logger = Logger.getLogger(KettleTestRunner.class);

	public static void runKettleJob(String jobFile, Map<String,String> parameters, LogLevel logLevel) {
	    try {
	        MemoryMetaStore metastore = new MemoryMetaStore();
	        initKettleEnvironment(metastore);
	        JobMeta jobMeta = new JobMeta(null, jobFile, null, metastore, null);
	        for (String key : parameters.keySet()) {
	            jobMeta.setParameterValue(key, parameters.get(key));
	        }
	        Job job = new Job(null, jobMeta);
	        job.setLogLevel(logLevel);
	        job.start();
	        job.waitUntilFinished();
	        notifyLoggedErrors(job);
	    } catch (Exception e) {
	        logger.error("Couldn't run kettle job!", e);
	    }
	}

    private static void initKettleEnvironment(MemoryMetaStore metastore) throws MetaStoreException {
        DatabaseMeta dbmeta = new DatabaseMeta("eduetl", "POSTGRESQL", "JNDI", null, "eduetl", "1521", null, null);
        DatabaseMetaStoreUtil.createDatabaseElement(metastore, dbmeta);
    }
    
    private static void notifyLoggedErrors(Job job) {
        Result result = job.getResult();
        String log = result.getLogText();
        boolean errorsOccured = log.contains("ERROR");
        assertFalse("Errors where found in kettle log:\n" + log, errorsOccured);
    }
	
}