org.fusesource.ide.projecttemplates.util.CamelVersionChecker.java Source code

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Here is the source code for org.fusesource.ide.projecttemplates.util.CamelVersionChecker.java

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/*******************************************************************************
 * Copyright (c) 2017 Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *     Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.fusesource.ide.projecttemplates.util;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.osgi.util.NLS;
import org.fusesource.ide.camel.model.service.core.CamelServiceManagerUtil;
import org.fusesource.ide.projecttemplates.actions.ui.UnknownTimeMonitorUpdater;
import org.fusesource.ide.projecttemplates.internal.Messages;

/**
 * @author lheinema
 *
 */
public class CamelVersionChecker implements IRunnableWithProgress {

    private String camelVersionToValidate;
    private boolean valid = true;
    private boolean isCanceled = false;
    private boolean done;
    private UnknownTimeMonitorUpdater unknownTimeMonitorUpdater;
    private Thread threadCheckingCamelVersion;

    public CamelVersionChecker(String camelVersionToValidate) {
        this.camelVersionToValidate = camelVersionToValidate;
    }

    @Override
    public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
        SubMonitor subMonitor = SubMonitor.convert(monitor,
                NLS.bind(Messages.validatingCamelVersionMessage, camelVersionToValidate), 1);
        unknownTimeMonitorUpdater = new UnknownTimeMonitorUpdater(subMonitor);
        try {
            new Thread(unknownTimeMonitorUpdater).start();
            threadCheckingCamelVersion = createThreadCheckingCamelVersion(camelVersionToValidate);
            threadCheckingCamelVersion.start();
            while (!unknownTimeMonitorUpdater.shouldTerminate() && threadCheckingCamelVersion.isAlive()
                    && !threadCheckingCamelVersion.isInterrupted()) {
                Thread.sleep(100);
            }
            if (subMonitor.isCanceled()) {
                isCanceled = true;
            }
            if (threadCheckingCamelVersion.isAlive()) {
                threadCheckingCamelVersion.interrupt();
            }
            subMonitor.setWorkRemaining(0);
        } finally {
            unknownTimeMonitorUpdater.finish();
        }
        done = true;
    }

    public void cancel() {
        isCanceled = true;
        if (unknownTimeMonitorUpdater != null) {
            unknownTimeMonitorUpdater.cancel();
        }
        if (threadCheckingCamelVersion != null) {
            threadCheckingCamelVersion.interrupt();
        }
    }

    public boolean isDone() {
        return done;
    }

    public boolean isValid() {
        return valid;
    }

    public Thread createThreadCheckingCamelVersion(String camelVersion) {
        return new Thread(null,
                () -> valid = CamelServiceManagerUtil.getManagerService().isCamelVersionExisting(camelVersion),
                "CamelVersionChecker " + CamelVersionChecker.this.toString());
    }

    public boolean isCanceled() {
        return isCanceled;
    }
}