/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.oodt.cas.webcomponents.workflow.model;
import org.apache.oodt.cas.webcomponents.workflow.WorkflowMgrConn;
import org.apache.oodt.cas.workflow.structs.Workflow;
import org.apache.oodt.cas.workflow.structs.WorkflowTask;
import org.apache.wicket.PageParameters;
import org.apache.wicket.behavior.SimpleAttributeModifier;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.util.ListModel;
/**
*
* Describe your class here.
*
* @author mattmann
* @version $Revision$
*
*/
public class WorkflowViewer extends Panel {
private static final long serialVersionUID = -157601650785829792L;
private final WorkflowMgrConn wm;
public WorkflowViewer(String id, String wmUrlStr, final String workflowId,
final Class<? extends WebPage> taskPage) {
super(id);
this.wm = new WorkflowMgrConn(wmUrlStr);
final IModel<Workflow> wModel = new LoadableDetachableModel<Workflow>() {
@Override
protected Workflow load() {
return wm.safeGetWorkflowById(workflowId);
}
};
add(new Label("workflow_id", new PropertyModel<Workflow>(wModel, "id")));
add(new Label("workflow_name", new PropertyModel<Workflow>(wModel, "name")));
int numTasks = wModel.getObject().getTasks().size();
String width = String.valueOf((82 * numTasks) + (115 * (numTasks - 1)));
String height = "82";
WebMarkupContainer wTable = new WebMarkupContainer("workflow_model_tbl");
wTable.add(new SimpleAttributeModifier("width", width));
wTable.add(new SimpleAttributeModifier("height", height));
wTable.add(new ListView<WorkflowTask>("tasks", new ListModel<WorkflowTask>(
wModel.getObject().getTasks())) {
@Override
protected void populateItem(ListItem<WorkflowTask> item) {
final PageParameters params = new PageParameters();
params.add("id", item.getModelObject().getTaskId());
Link taskLink = new Link("task_link") {
/*
* (non-Javadoc)
*
* @see org.apache.wicket.markup.html.link.Link#onClick()
*/
@Override
public void onClick() {
setResponsePage(taskPage, params);
}
};
String taskName = summarizeWords(item.getModelObject().getTaskName(),
16, 16);
taskLink.add(new Label("task_name", taskName).setRenderBodyOnly(true));
item.add(taskLink);
if (item.getIndex() == wModel.getObject().getTasks().size() - 1) {
item.add(new WebMarkupContainer("task_arrow").setVisible(false));
} else {
item.add(new WebMarkupContainer("task_arrow"));
}
}
});
add(wTable);
}
/**
* <p>
* Summarizes a given String of words (the <code>orig</code> parameter), and
* limits the size of the individual words in the string by the given
* <code>wordThreshold</code>, and limits the final size of the final
* summarized word string by the given <code>maxLengthTotal</code>.
* </p>
*
* @param orig
* The original String to summarize.
* @param wordThreshhold
* The maximum amount of characters for any given word in the string.
* @param maxLengthTotal
* The maximum final size of the summarized set of words.
* @return A summarized string.
*/
private String summarizeWords(String orig, int wordThreshhold,
int maxLengthTotal) {
String[] words = orig.split(" ");
StringBuffer summarizedString = new StringBuffer();
for (int i = 0; i < words.length; i++) {
String word = words[i];
summarizedString.append(word.substring(0, Math.min(wordThreshhold, word
.length())));
summarizedString.append(" ");
}
// add '...' to end of summarized string if applicable
if (summarizedString.length() > maxLengthTotal) {
return summarizedString.substring(0,
Math.min(maxLengthTotal, summarizedString.length()) - 3).toString() + "...";
} else
return summarizedString.toString();
}
}