net.sourceforge.vulcan.web.struts.forms.SchedulerConfigForm.java Source code

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Here is the source code for net.sourceforge.vulcan.web.struts.forms.SchedulerConfigForm.java

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/*
 * Vulcan Build Manager
 * Copyright (C) 2005-2012 Chris Eldredge
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package net.sourceforge.vulcan.web.struts.forms;

import java.text.ParseException;

import javax.servlet.http.HttpServletRequest;

import net.sourceforge.vulcan.dto.SchedulerConfigDto;

import org.apache.commons.lang.StringUtils;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.quartz.CronTrigger;

public final class SchedulerConfigForm extends ConfigForm {
    private static long[] multipliers = { 86400000, 3600000, 60000, 1000 };
    private boolean daemon;
    private String intervalScalar;
    private String intervalMultiplier;
    private String timeoutScalar;
    private String timeoutMultiplier;

    public SchedulerConfigForm() {
        super(new SchedulerConfigDto());
    }

    public String getTargetType() {
        return daemon ? "build daemon" : "scheduler";
    }

    @Override
    protected void doAfterValidate() {
        final SchedulerConfigDto config = this.getSchedulerConfig();
        config.setInterval(Long.parseLong(intervalScalar) * Long.parseLong(intervalMultiplier));
        config.setTimeout(Long.parseLong(timeoutScalar) * Long.parseLong(timeoutMultiplier));
    }

    @Override
    protected void doAfterPopulate() {
        final long interval = this.getSchedulerConfig().getInterval();
        long mult = calculateMultiplier(interval);
        intervalMultiplier = Long.toString(mult);
        if (mult > 0) {
            intervalScalar = Long.toString(interval / mult);
        } else {
            intervalScalar = "0";
        }

        final long timout = this.getSchedulerConfig().getTimeout();
        mult = calculateMultiplier(timout);
        timeoutMultiplier = Long.toString(mult);
        if (mult > 0) {
            timeoutScalar = Long.toString(timout / mult);
        } else {
            timeoutScalar = "0";
        }
    }

    private long calculateMultiplier(long interval) {
        if (interval == 0) {
            return 0;
        }
        for (int i = 0; i < multipliers.length; i++) {
            if (interval % multipliers[i] == 0) {
                return multipliers[i];
            }
        }
        return 1;
    }

    @Override
    public void resetInternal(ActionMapping mapping, HttpServletRequest request) {
        daemon = false;
        timeoutScalar = "0";
        timeoutMultiplier = "0";
    }

    public SchedulerConfigDto getSchedulerConfig() {
        return (SchedulerConfigDto) getConfig();
    }

    public boolean isDaemon() {
        return daemon;
    }

    public void setDaemon(boolean daemon) {
        this.daemon = daemon;
    }

    public String getIntervalMultiplier() {
        return intervalMultiplier;
    }

    public void setIntervalMultiplier(String multiplier) {
        this.intervalMultiplier = multiplier;
    }

    public String getIntervalScalar() {
        return intervalScalar;
    }

    public void setIntervalScalar(String scalar) {
        this.intervalScalar = scalar;
    }

    public String getTimeoutMultiplier() {
        return timeoutMultiplier;
    }

    public void setTimeoutMultiplier(String timeoutMultiplier) {
        this.timeoutMultiplier = timeoutMultiplier;
    }

    public String getTimeoutScalar() {
        return timeoutScalar;
    }

    public void setTimeoutScalar(String timeoutScalar) {
        this.timeoutScalar = timeoutScalar;
    }

    @Override
    protected boolean shouldValidate() {
        return isCreateAction() || isUpdateAction();
    }

    @Override
    protected void customValidate(ActionMapping mapping, HttpServletRequest request, ActionErrors errors) {
        final String cronExpr = getSchedulerConfig().getCronExpression();

        if (!StringUtils.isBlank(cronExpr)) {
            try {
                new CronTrigger("test", "group", cronExpr).computeFirstFireTime(null);
                this.intervalMultiplier = "0";
                this.intervalScalar = "0";
            } catch (ParseException e) {
                errors.add("config.cronExpression", new ActionMessage("errors.cron.syntax"));
            } catch (NumberFormatException e) {
                errors.add("config.cronExpression", new ActionMessage("errors.cron.syntax"));
            } catch (UnsupportedOperationException e) {
                errors.add("config.cronExpression",
                        new ActionMessage("errors.cron.syntax.detailed", new String[] { e.getMessage() }));
            }
        }
    }
}