org.glassfish.grizzly.streams.StreamDecodeCondition Maven / Gradle / Ivy

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package org.glassfish.grizzly.streams;

import org.glassfish.grizzly.TransformationException;
import org.glassfish.grizzly.TransformationResult;
import org.glassfish.grizzly.TransformationResult.Status;
import org.glassfish.grizzly.Transformer;
import org.glassfish.grizzly.utils.ResultAware;
import org.glassfish.grizzly.utils.conditions.Condition;

/**
 *
 * @author Alexey Stashok
 */
public class StreamDecodeCondition implements Condition {

    private final StreamReader streamReader;
    
    private final Transformer decoder;
    private final ResultAware resultAware;

    public StreamDecodeCondition(StreamReader streamReader,
            Transformer decoder,
            ResultAware resultAware) {
        this.streamReader = streamReader;
        this.decoder = decoder;
        this.resultAware = resultAware;
    }

    @Override
    public boolean check() {
        final TransformationResult result =
                decoder.transform(streamReader.getConnection(), streamReader);

        final Status status = result.getStatus();
        if (status == Status.COMPLETE) {
            resultAware.setResult(result.getMessage());
            return true;
        } else if (status == Status.INCOMPLETE) {
            return false;
        }

        throw new TransformationException(result.getErrorCode() + ": " +
                result.getErrorDescription());
    }
}