TaskComparator.java

/**
 * Licensed to the Austrian Association for Software Tool Integration (AASTI)
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. The AASTI licenses this file to you 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.openengsb.ui.common.taskbox.web;

import java.util.Comparator;

import org.apache.wicket.extensions.markup.html.repeater.util.SortParam;
import org.openengsb.core.workflow.api.model.Task;

public class TaskComparator implements Comparator<Task> {
    SortParam sp;

    public TaskComparator(SortParam sp) {
        this.sp = sp;
    }

    @Override
    public int compare(Task arg0, Task arg1) {
        int ret = 0;
        try {
            if (sp.getProperty().equals("taskId")) {
                ret = arg0.getTaskId().compareTo(arg1.getTaskId());
            } else if (sp.getProperty().equals("taskType")) {
                ret = arg0.getTaskType().compareTo(arg1.getTaskType());
            } else if (sp.getProperty().equals("description")) {
                ret = arg0.getDescription().compareTo(arg1.getDescription());
            } else if (sp.getProperty().equals("taskCreationTimestamp")) {
                ret = arg0.getTaskCreationTimestamp().compareTo(arg1.getTaskCreationTimestamp());
            }
        } catch (NullPointerException ex) {
            ret = -1;
        }
        if (!sp.isAscending()) {
            return ret * -1;
        }
        return ret;
    }

}