package org.damour.base.client.ui.permalink;
import java.util.ArrayList;
import java.util.List;
import org.damour.base.client.objects.PermissibleObject;
import org.damour.base.client.utils.ParameterParser;
import org.damour.base.client.utils.StringUtils;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.Window;
public class PermaLinkBuilder {
public static String getLink(PermissibleObject permissibleObject, List<String> ignoredParameters) {
// build a hashmap of pathInfo parameters, query parameters and history token parameters
ParameterParser pathParameters = new ParameterParser(ParameterParser.convertRESTtoQueryString(Window.Location.getPath()));
ParameterParser queryStringParameters = new ParameterParser(Window.Location.getQueryString());
ParameterParser historyParameters = new ParameterParser(History.getToken());
List<String> parameterOrder = new ArrayList<String>(historyParameters.getOrderedParameterNames());
if (StringUtils.isEmpty(History.getToken())) {
for (String queryStringParam : queryStringParameters.getOrderedParameterNames()) {
if (!parameterOrder.contains(queryStringParam)) {
parameterOrder.add(queryStringParam);
}
}
for (String pathParam : pathParameters.getOrderedParameterNames()) {
if (!parameterOrder.contains(pathParam)) {
parameterOrder.add(pathParam);
}
}
}
String permaLinkStr = Window.Location.getProtocol() + "//" + Window.Location.getHostName()
+ ((Window.Location.getPort().equals("80") || Window.Location.getPort().equals("")) ? "" : ":" + Window.Location.getPort());
for (String parameterName : parameterOrder) {
if (ignoredParameters != null && ignoredParameters.contains(parameterName)) {
// skip ignored parameters
continue;
}
if ("name".equalsIgnoreCase(parameterName) && permissibleObject != null && !StringUtils.isEmpty(permissibleObject.getName())) {
// skip the name parameter until later
continue;
}
if (!StringUtils.isEmpty(historyParameters.getParameter(parameterName))) {
permaLinkStr += "/" + parameterName + "/" + historyParameters.getParameter(parameterName);
} else if (!StringUtils.isEmpty(queryStringParameters.getParameter(parameterName))) {
permaLinkStr += "/" + parameterName + "/" + queryStringParameters.getParameter(parameterName);
} else if (!StringUtils.isEmpty(pathParameters.getParameter(parameterName))) {
permaLinkStr += "/" + parameterName + "/" + pathParameters.getParameter(parameterName);
}
}
if (permissibleObject != null && !StringUtils.isEmpty(permissibleObject.getName())) {
permaLinkStr += "/name/" + StringUtils.patchURL(permissibleObject.getName()) + ".html";
}
return permaLinkStr;
}
}