org.eclipse.plugin.worldwind.operation.GroundOverlayFetchOperation.java Source code

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Here is the source code for org.eclipse.plugin.worldwind.operation.GroundOverlayFetchOperation.java

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/*******************************************************************************
 * Copyright (c) 2006 Vladimir Silva and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Vladimir Silva - initial API and implementation
 *******************************************************************************/
package org.eclipse.plugin.worldwind.operation;

import java.lang.reflect.InvocationTargetException;

import org.apache.log4j.Logger;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;

import org.eclipse.plugin.worldwind.contrib.layers.GroundOverlayLayer;

/**
 * JFace operation to pre-fetch ground overlay layers. Used by the WMS Wizard
 * and others
 * @author Owner
 *
 */
public class GroundOverlayFetchOperation implements IRunnableWithProgress {
    private static final Logger logger = Logger.getLogger(GroundOverlayFetchOperation.class);

    GroundOverlayLayer[] overlays;

    public GroundOverlayFetchOperation(GroundOverlayLayer[] overlays) {
        this.overlays = overlays;
    }

    public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        for (int i = 0; i < overlays.length; i++) {
            final GroundOverlayLayer layer = overlays[i];

            monitor.beginTask(layer.getName() + " (" + i + "/" + overlays.length + ")", IProgressMonitor.UNKNOWN);

            logger.debug("Pre-fetching " + layer + " Texture url=" + layer.getTextureURL());

            // fetch synchronously...
            layer.fetchOverlay(true);

            monitor.done();
        }

        if (monitor.isCanceled())
            throw new InterruptedException("Ground overlay fetch operation cancelled.");

    }

}