org.eclipse.buckminster.jnlp.MaterializerRunnable.java Source code

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Here is the source code for org.eclipse.buckminster.jnlp.MaterializerRunnable.java

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/*******************************************************************************
 * Copyright (c) 2006-2007, 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.jnlp;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;

import org.eclipse.buckminster.core.CorePlugin;
import org.eclipse.buckminster.core.materializer.MaterializationContext;
import org.eclipse.buckminster.core.metadata.model.BillOfMaterials;
import org.eclipse.buckminster.core.mspec.model.MaterializationSpec;
import org.eclipse.buckminster.core.parser.IParser;
import org.eclipse.buckminster.runtime.IOUtils;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.xml.sax.SAXException;

public class MaterializerRunnable implements IRunnableWithProgress {
    private final MaterializationSpec m_mspec;

    private MaterializationContext m_context;

    public MaterializerRunnable(MaterializationSpec mspec) {
        m_mspec = mspec;
    }

    public MaterializationContext getContext() {
        return m_context;
    }

    public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        try {
            m_context = createContext();
            JNLPMaterializationJob.runDelegated(m_context, monitor);
            IStatus status = m_context.getStatus();
            if (status.getSeverity() == IStatus.ERROR)
                throw new CoreException(status);
        } catch (OperationCanceledException e) {
            throw new InterruptedException();
        } catch (Throwable t) {
            throw new InvocationTargetException(t);
        }
    }

    private MaterializationContext createContext() throws CoreException, IOException, SAXException {
        URL url = m_mspec.getResolvedURL();
        InputStream input = null;
        try {
            input = new BufferedInputStream(url.openStream());
            IParser<BillOfMaterials> bomParser = CorePlugin.getDefault().getParserFactory()
                    .getBillOfMaterialsParser(true);
            BillOfMaterials bom = bomParser.parse(url.toString(), input);
            return new MaterializationContext(bom, m_mspec);
        } finally {
            IOUtils.close(input);
        }
    }
}