AbstractLogFileSource.java

package hu.sztaki.ilab.longneck.weblog.parser;

import hu.sztaki.ilab.longneck.process.access.Source;
import hu.sztaki.ilab.longneck.util.BufferedFileReader;
import java.io.IOException;
import java.util.Arrays;
import java.util.Deque;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import org.apache.commons.lang.StringUtils;

/**
 * 
 * @author Molnár Péter <molnarp@ilab.sztaki.hu>
 */
abstract public class AbstractLogFileSource implements Source {

	/** Indicates source-path set to standard input. */
	public static final String STDIN = "stdin";

    /** The name of the source for identification from property. */
    protected String name;
    
    /** The name of the source for identification. */
    private String path;

	/** List of paths to read log files from. */
	protected List<String> sourcePath;
	/** File reader to read files with. */
	protected BufferedFileReader bf;
	/** Current datasegment. */
	protected Deque<String> dataSegment = new LinkedList<String>();
    /** The runtime properties. */
    protected Properties runtimeProperties;

    @Override
    public void init() {
        // Set source path
        if (path == null) {
            setSourcePath(runtimeProperties.getProperty(
                    String.format("weblogSource.%1$s.path", name)));
        } else {
            setSourcePath(path);
        }
        
         if (sourcePath == null || "".equals(sourcePath)) {
            throw new RuntimeException(name!= null ? 
                    String.format("weblogSource.%1$s.path is undefined.", name):"Path is undefined");
        }

        // Initialize buffered reader
		try {
		    boolean stdinEnabled = STDIN.equals(sourcePath.get(0));
		    bf = new BufferedFileReader.Builder(sourcePath, stdinEnabled).build();
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
    }

	public List<String> getSourcePath() {
		return sourcePath;
	}

	public void setSourcePath(List<String> sourcePath) {
		this.sourcePath = sourcePath;
	}

	public void setSourcePath(String sourcePath) {
       this.sourcePath = Arrays.asList(StringUtils.split(sourcePath,':'));
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }

    public Properties getRuntimeProperties() {
        return runtimeProperties;
    }

    public void setRuntimeProperties(Properties runtimeProperties) {
        this.runtimeProperties = runtimeProperties;
    }
}