GeneratorNodeHandler.java

/*****************************************************************************
 * Copyright (c) 2006-2013, Cloudsmith Inc.
 * The code, documentation and other materials contained herein have been
 * licensed under the Eclipse Public License - v 1.0 by the copyright holder
 * listed above, as the Initial Contributor under such license. The text of
 * such license is available at www.eclipse.org.
 *****************************************************************************/
package org.eclipse.buckminster.core.metadata.parser;

import java.util.UUID;

import org.eclipse.buckminster.core.Messages;
import org.eclipse.buckminster.core.cspec.model.CSpec;
import org.eclipse.buckminster.core.cspec.model.ComponentIdentifier;
import org.eclipse.buckminster.core.metadata.model.BOMNode;
import org.eclipse.buckminster.core.metadata.model.GeneratorNode;
import org.eclipse.buckminster.core.version.VersionHelper;
import org.eclipse.buckminster.sax.AbstractHandler;
import org.eclipse.equinox.p2.metadata.Version;
import org.eclipse.osgi.util.NLS;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

/**
 * @author Thomas Hallgren
 */
class GeneratorNodeHandler extends BomNodeHandler {
	public static final String TAG = GeneratorNode.TAG;

	private GeneratorNode node;

	GeneratorNodeHandler(AbstractHandler parent) {
		super(parent);
	}

	@Override
	public void handleAttributes(Attributes attrs) throws SAXException {
		UUID cspecId = null;
		try {
			cspecId = UUID.fromString(this.getStringValue(attrs, GeneratorNode.ATTR_DECLARING_CSPEC_ID));
			String component = getOptionalStringValue(attrs, GeneratorNode.ATTR_COMPONENT);
			String attribute = getStringValue(attrs, GeneratorNode.ATTR_ATTRIBUTE);
			String generates = getStringValue(attrs, GeneratorNode.ATTR_GENERATES);
			String generatesType = getOptionalStringValue(attrs, GeneratorNode.ATTR_GENERATES_TYPE);
			String tmp = getOptionalStringValue(attrs, GeneratorNode.ATTR_GENERATES_VERSION);
			Version generatesVersion = null;
			if (tmp != null) {
				try {
					generatesVersion = VersionHelper.parseVersion(tmp);
				} catch (IllegalArgumentException e) {
					throw new SAXParseException(e.getMessage(), getDocumentLocator());
				}
			}

			node = new GeneratorNode((CSpec) getWrapped(cspecId), component, attribute, new ComponentIdentifier(generates, generatesType,
					generatesVersion));
		} catch (ClassCastException e) {
			throw new SAXParseException(NLS.bind(Messages.Wrapper_0_does_not_wrap_cspec, cspecId), getDocumentLocator());
		}
	}

	@Override
	BOMNode getDepNode() {
		return node;
	}
}