EvalReader.java

package com.aptana.ruby.internal.debug.core.parsing;

import org.xmlpull.v1.XmlPullParser;

import com.aptana.core.util.StringUtil;
import com.aptana.ruby.debug.core.RubyDebugCorePlugin;
import com.aptana.ruby.internal.debug.core.model.RubyProcessingException;

@SuppressWarnings("nls")
public class EvalReader extends XmlStreamReader
{

	private String exceptionType;
	private String exceptionMessage;
//	private String name;
	private String value;

	public EvalReader(XmlPullParser xpp)
	{
		super(xpp);
	}

	public EvalReader(AbstractReadStrategy readStrategy)
	{
		super(readStrategy);
	}

	@Override
	protected boolean processStartElement(XmlPullParser xpp) throws XmlStreamReaderException
	{
		boolean result = false;
		if (xpp.getName().equals("processingException"))
		{
			exceptionType = xpp.getAttributeValue(StringUtil.EMPTY, "type");
			exceptionMessage = xpp.getAttributeValue(StringUtil.EMPTY, "message");
			result = true;
		}
		else if (xpp.getName().equals("eval"))
		{
			// name = xpp.getAttributeValue(StringUtil.EMPTY, "name");
			value = xpp.getAttributeValue(StringUtil.EMPTY, "value");
			result = true;
		}
		return result;
	}

	public String readEvalResult() throws RubyProcessingException
	{

		try
		{
			this.read();
		}
		catch (Exception ex)
		{
			RubyDebugCorePlugin.log(ex);
			return null;
		}
		if (exceptionType != null)
		{
			throw new RubyProcessingException(exceptionType, exceptionMessage);
		}
		return value;
	}

	@Override
	public void processContent(String text)
	{
	}

	@Override
	protected boolean processEndElement(XmlPullParser xpp)
	{
		return xpp.getName().equals("processingException") || xpp.getName().equals("eval");
	}

}