BuckminsterCSpecBuilder.java

/*******************************************************************************
 * Copyright (c) 2004, 2006
 * Thomas Hallgren, Kenneth Olwing, Mitch Sonies
 * Pontus Rydin, Nils Unden, Peer Torngren
 * The code, documentation and other materials contained herein have been
 * licensed under the Eclipse Public License - v 1.0 by the individual
 * copyright holders listed above, as Initial Contributors under such license.
 * The text of such license is available at www.eclipse.org.
 *******************************************************************************/

package org.eclipse.buckminster.core.ctype;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import org.eclipse.buckminster.core.CorePlugin;
import org.eclipse.buckminster.core.cspec.AbstractResolutionBuilder;
import org.eclipse.buckminster.core.cspec.builder.CSpecBuilder;
import org.eclipse.buckminster.core.cspec.model.CSpec;
import org.eclipse.buckminster.core.metadata.model.BOMNode;
import org.eclipse.buckminster.core.parser.IParser;
import org.eclipse.buckminster.core.reader.ICatalogReader;
import org.eclipse.buckminster.core.reader.IComponentReader;
import org.eclipse.buckminster.core.reader.IFileReader;
import org.eclipse.buckminster.core.reader.IStreamConsumer;
import org.eclipse.buckminster.runtime.BuckminsterException;
import org.eclipse.buckminster.runtime.MonitorUtils;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;

/**
 * @author Thomas Hallgren
 */
public class BuckminsterCSpecBuilder extends AbstractResolutionBuilder implements IStreamConsumer<CSpec> {
	@Override
	public synchronized BOMNode build(IComponentReader[] readerHandle, boolean forResolutionAidOnly, IProgressMonitor monitor) throws CoreException {
		monitor.beginTask(null, 2000);
		IComponentReader reader = readerHandle[0];
		try {
			CSpecBuilder cspecBld = new CSpecBuilder();
			if (reader instanceof ICatalogReader) {
				ICatalogReader catRdr = (ICatalogReader) reader;
				String fileName = getMetadataFile(catRdr, IComponentType.PREF_CSPEC_FILE, CorePlugin.CSPEC_FILE, MonitorUtils
						.subMonitor(monitor, 100));
				cspecBld.initFrom(catRdr.readFile(fileName, this, MonitorUtils.subMonitor(monitor, 100)));
			} else
				cspecBld.initFrom(((IFileReader) reader).readFile(this, MonitorUtils.subMonitor(monitor, 1000)));

			applyExtensions(cspecBld, forResolutionAidOnly, reader, MonitorUtils.subMonitor(monitor, 1000));
			return createNode(reader, cspecBld);
		} catch (FileNotFoundException e) {
			throw new MissingCSpecSourceException(reader.getProviderMatch());
		} catch (IOException e) {
			throw BuckminsterException.wrap(e);
		} finally {
			monitor.done();
		}
	}

	@Override
	public CSpec consumeStream(IComponentReader reader, String streamName, InputStream stream, IProgressMonitor monitor) throws CoreException {
		IParser<CSpec> cspecParser = CorePlugin.getDefault().getParserFactory().getCSpecParser(true);
		return cspecParser.parse(streamName, stream);
	}
}