package com.googlecode.gwt.test.internal.patchers;
import java.net.MalformedURLException;
import java.net.URL;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Window.Location;
import com.googlecode.gwt.test.exceptions.GwtTestConfigurationException;
import com.googlecode.gwt.test.internal.AfterTestCallback;
import com.googlecode.gwt.test.internal.AfterTestCallbackManager;
import com.googlecode.gwt.test.internal.GwtConfig;
import com.googlecode.gwt.test.patchers.PatchClass;
import com.googlecode.gwt.test.patchers.PatchMethod;
@PatchClass(Location.class)
class LocationPatcher {
/**
* Holder for a resetable URL
*
*/
private static class UrlHolder implements AfterTestCallback {
private URL url;
private UrlHolder() {
AfterTestCallbackManager.get().registerCallback(this);
}
/*
* (non-Javadoc)
*
* @see com.googlecode.gwt.test.internal.AfterTestCallback#afterTest()
*/
public void afterTest() throws Throwable {
url = null;
}
}
private static final Logger LOGGER = LoggerFactory.getLogger(LocationPatcher.class);
private static UrlHolder urlHolder = new UrlHolder();
@PatchMethod
static void assign(String newURL) {
try {
urlHolder.url = new URL(urlHolder.url, newURL);
} catch (MalformedURLException e) {
GWT.log("Failed to assign new URL '" + newURL + "'", e);
}
}
@PatchMethod
static String getHost() {
URL urlToUse = getURLToUse();
return urlToUse.getHost() + ":" + getPort(urlToUse);
}
@PatchMethod
static String getHostName() {
return getURLToUse().getHost();
}
@PatchMethod
static String getHref() {
return getURLToUse().toString();
}
@PatchMethod
static String getPath() {
return getURLToUse().getPath();
}
@PatchMethod
static String getPort() {
return getPort(getURLToUse());
}
@PatchMethod
static String getProtocol() {
return getURLToUse().getProtocol() + ":";
}
@PatchMethod
static void replace(String newURL) {
assign(newURL);
}
private static String computePath() {
String absolutePath = GwtConfig.get().getModuleRunner().getHostPagePath();
if (absolutePath == null) {
LOGGER.warn("The host page path for '"
+ GwtConfig.get().getModuleAlias()
+ "' is null, fallback to an empty HTML document instead. You may want to override "
+ GwtConfig.get().getModuleRunner().getClass().getSimpleName()
+ ".getHostPagePath(String moduleFullQualifiedName) method to specify the relative path of the your HTML file from the root directory of your java project");
absolutePath = "index.html";
}
int token = absolutePath.lastIndexOf("/") + 1;
return (token > 0) ? absolutePath.substring(token) : absolutePath;
}
private static String getPort(URL url) {
int port = url.getPort();
return port != -1 ? String.valueOf(getURLToUse().getPort()) : "80";
}
private static URL getURLToUse() {
if (urlHolder.url == null) {
try {
urlHolder.url = new URL(GWT.getHostPageBaseURL() + computePath() + Location.getHash());
} catch (MalformedURLException e) {
throw new GwtTestConfigurationException(
"GWT.getHostPageBaseURL() has failed to be parsed in a " + URL.class.getName()
+ " instance", e);
}
}
return urlHolder.url;
}
}