MaterializationHandler.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.cspec.model.ComponentIdentifier;
import org.eclipse.buckminster.core.cspec.model.NamedElement;
import org.eclipse.buckminster.core.metadata.StorageManager;
import org.eclipse.buckminster.core.metadata.model.Materialization;
import org.eclipse.buckminster.core.metadata.model.Resolution;
import org.eclipse.buckminster.core.parser.ExtensionAwareHandler;
import org.eclipse.buckminster.core.version.VersionHelper;
import org.eclipse.buckminster.sax.AbstractHandler;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.equinox.p2.metadata.Version;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

/**
 * @author Thomas Hallgren
 */
public class MaterializationHandler extends ExtensionAwareHandler {
	public static final String TAG = Materialization.TAG;

	private Materialization materialization;

	public MaterializationHandler(AbstractHandler parent) {
		super(parent);
	}

	public Materialization getMaterialization() {
		return materialization;
	}

	@Override
	public void handleAttributes(Attributes attrs) throws SAXException {
		ComponentIdentifier cid;
		String name = getOptionalStringValue(attrs, NamedElement.ATTR_NAME);
		if (name == null) {
			// Backward compatibility. Look for resolutionId
			//
			UUID resolutionId = UUID.fromString(getStringValue(attrs, "resolutionId")); //$NON-NLS-1$
			try {
				Resolution res = StorageManager.getDefault().getResolutions().getElement(resolutionId);
				cid = res.getComponentIdentifier();
			} catch (CoreException e) {
				throw new SAXParseException(e.getMessage(), getDocumentLocator(), e);
			}
		} else {
			String ctype = getComponentType(attrs);
			Version version = null;
			try {
				version = VersionHelper.parseVersionAttributes(attrs);
			} catch (CoreException e) {
				throw new SAXParseException(e.getMessage(), getDocumentLocator());
			}
			cid = new ComponentIdentifier(name, ctype, version);
		}
		materialization = new Materialization(Path.fromPortableString(getStringValue(attrs, Materialization.ATTR_LOCATION)), cid);
	}
}