WeblogLine.java

package hu.sztaki.ilab.longneck.process.block;

import hu.sztaki.ilab.longneck.Record;
import hu.sztaki.ilab.longneck.process.CheckError;
import hu.sztaki.ilab.longneck.process.VariableSpace;
import hu.sztaki.ilab.longneck.process.constraint.CheckResult;
import hu.sztaki.ilab.longneck.weblog.parser.processor.LogParser;
import hu.sztaki.ilab.longneck.weblog.parser.processor.LogParserFactory;
import java.util.InputMismatchException;

/**
 * Processes a log line specified in the apply-to attribute.
 *
 * @author Molnár Péter <molnarp@ilab.sztaki.hu>
 */
public class WeblogLine extends AbstractAtomicBlock {

    /** Log parser factory to create log parser. */
    private LogParserFactory logParserFactory;
    /** The log parser used to split and process the log line. */
    private LogParser logParser;

    public void afterPropertiesSet() {
        logParser = logParserFactory.getLogParser();
    }

    @Override
    public void apply(Record record, VariableSpace parentScope) throws CheckError {
        for (String fieldName : applyTo) {

            String value = BlockUtils.getValue(fieldName, record, parentScope);

            try {
                logParser.doProcess(record, value);
             } catch (InputMismatchException e) {
                logParser.LOG.error(e);

                String executedPattern = logParser.appliedPattern.pattern();
                throw new CheckError(
                        new CheckResult(this, false, this.getClass().getName().toString(), value,
                        String.format("<Weblog-parser-source> is not able to parse line according to pattern: '%1$s'", executedPattern)));
            }
        }
    }

    @Override
    public WeblogLine clone() {
        return (WeblogLine) super.clone();
    }

    public LogParserFactory getLogParserFactory() {
        return logParserFactory;
    }

    public void setLogParserFactory(LogParserFactory logParserFactory) {
        this.logParserFactory = logParserFactory;
    }
}