/*
* Copyright 2012 astamuse company,Ltd.
*
* 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 com.astamuse.asta4d.web.dispatch.request.transformer;
import java.net.HttpURLConnection;
import com.astamuse.asta4d.Page;
import com.astamuse.asta4d.web.dispatch.request.ResultTransformer;
import com.astamuse.asta4d.web.dispatch.response.provider.Asta4DPageProvider;
import com.astamuse.asta4d.web.dispatch.response.provider.RedirectTargetProvider;
import com.astamuse.asta4d.web.util.bean.DeclareInstanceUtil;
public class DefaultStringTransformer implements ResultTransformer {
@Override
public Object transformToContentProvider(Object result) {
if (result instanceof String) {
String target = result.toString();
if (target.startsWith("redirect:")) {// redirect
String path = target.substring("redirect:".length());
int status = HttpURLConnection.HTTP_MOVED_TEMP;
int nextColonIndex = path.indexOf(":");
if (nextColonIndex >= 0) {
String possibleStatus = path.substring(0, nextColonIndex);
if (possibleStatus.equalsIgnoreCase("p")) {
status = HttpURLConnection.HTTP_MOVED_PERM;
} else if (possibleStatus.equalsIgnoreCase("t")) {
status = HttpURLConnection.HTTP_MOVED_TEMP;
} else {
try {
status = Integer.parseInt(possibleStatus);
path = path.substring(possibleStatus.length());
} catch (NumberFormatException nfe) {
// do nothing
}
}
}
RedirectTargetProvider provider = DeclareInstanceUtil.createInstance(RedirectTargetProvider.class);
provider.setStatus(status);
provider.setTargetPath(path);
return provider;
} else {// asta4d page
try {
Page page = Page.buildFromPath(result.toString());
if (page == null) {
return new TemplateNotFoundException(result.toString());
} else {
Asta4DPageProvider provider = DeclareInstanceUtil.createInstance(Asta4DPageProvider.class);
provider.setPage(page);
return provider;
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
} else {
return null;
}
}
}