org.onebusaway.webapp.actions.where.ServiceAlertAction.java Source code

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Here is the source code for org.onebusaway.webapp.actions.where.ServiceAlertAction.java

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/**
 * Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.onebusaway.webapp.actions.where;

import java.util.List;
import java.util.NoSuchElementException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Actions;
import org.onebusaway.collections.CollectionsLibrary;
import org.onebusaway.transit_data.model.service_alerts.NaturalLanguageStringBean;
import org.onebusaway.transit_data.model.service_alerts.ServiceAlertBean;
import org.onebusaway.transit_data.services.TransitDataService;
import org.onebusaway.users.services.CurrentUserService;
import org.springframework.beans.factory.annotation.Autowired;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.validator.annotations.RequiredStringValidator;

public class ServiceAlertAction extends ActionSupport {

    private static final long serialVersionUID = 1L;

    private TransitDataService _transitDataService;

    private CurrentUserService _currentUserService;

    private String _id;

    private ServiceAlertBean _situation;

    @Autowired
    public void setTransitDataService(TransitDataService transitDataService) {
        _transitDataService = transitDataService;
    }

    @Autowired
    public void setCurrentUserService(CurrentUserService currentUserService) {
        _currentUserService = currentUserService;
    }

    @RequiredStringValidator(key = "requiredField")
    public void setId(String id) {
        _id = id;
    }

    public String getId() {
        return _id;
    }

    public ServiceAlertBean getSituation() {
        return _situation;
    }

    public String getNLSValue(List<NaturalLanguageStringBean> values) {
        if (values == null || values.isEmpty()) {
            return null;
        }
        return values.get(0).getValue();
    }

    @Override
    @Actions({ @Action(value = "/where/standard/service-alert"), @Action(value = "/where/iphone/service-alert"),
            @Action(value = "/where/text/service-alert") })
    public String execute() {

        _situation = _transitDataService.getServiceAlertForId(_id);
        if (_situation == null)
            throw new NoSuchElementException();

        if (!CollectionsLibrary.isEmpty(_situation.getDescriptions())) {
            for (NaturalLanguageStringBean desc : _situation.getDescriptions()) {
                if (desc.getValue() != null) {
                    String value = desc.getValue();
                    value = htmlify(value);
                    desc.setValue(value);
                }
            }
        }

        _currentUserService.markServiceAlertAsRead(_situation.getId(), System.currentTimeMillis(), true);

        return SUCCESS;
    }

    private String htmlify(String content) {

        Pattern p = Pattern.compile("(http://[^\\s]+)");
        Matcher m = p.matcher(content);
        StringBuffer sb = new StringBuffer();
        while (m.find()) {
            m.appendReplacement(sb, "<a href=\"" + m.group(1) + "\">" + m.group(1) + "</a> ");
        }
        m.appendTail(sb);

        content = sb.toString();

        content = content.replaceAll("\r\n", "<br/>");
        content = content.replaceAll("\n", "<br/>");

        return content;
    }
}