/*
* 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;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import org.jsoup.nodes.Document;
import com.astamuse.asta4d.interceptor.PageInterceptor;
import com.astamuse.asta4d.interceptor.base.ExceptionHandler;
import com.astamuse.asta4d.interceptor.base.Executor;
import com.astamuse.asta4d.interceptor.base.GenericInterceptor;
import com.astamuse.asta4d.interceptor.base.InterceptorUtil;
import com.astamuse.asta4d.render.GoThroughRenderer;
import com.astamuse.asta4d.render.RenderUtil;
import com.astamuse.asta4d.render.Renderer;
import com.astamuse.asta4d.template.Template;
import com.astamuse.asta4d.template.TemplateResolver;
public class Page {
private static class PageInterceptorWrapper implements GenericInterceptor<Document> {
private PageInterceptor interceptor;
public PageInterceptorWrapper(PageInterceptor interceptor) {
this.interceptor = interceptor;
}
@Override
public boolean beforeProcess(Document doc) throws Exception {
Renderer renderer = new GoThroughRenderer();
interceptor.prePageRendering(renderer);
RenderUtil.apply(doc, renderer);
return true;
}
@Override
public void afterProcess(Document doc, ExceptionHandler exceptionHandler) {
if (exceptionHandler.getException() != null) {
return;
}
Renderer renderer = new GoThroughRenderer();
interceptor.postPageRendering(renderer);
RenderUtil.apply(doc, renderer);
}
public final static List<PageInterceptorWrapper> buildList(List<PageInterceptor> interceptorList) {
List<PageInterceptorWrapper> list = new ArrayList<>();
if (interceptorList != null) {
for (PageInterceptor interceptor : interceptorList) {
list.add(new PageInterceptorWrapper(interceptor));
}
}
return list;
}
}
private final static List<PageInterceptorWrapper> WrapperPageInterceptorList = PageInterceptorWrapper.buildList(Configuration
.getConfiguration().getPageInterceptorList());
private Document renderedDocument;
public Page(Template template) throws Exception {
renderedDocument = renderTemplate(template);
}
public final static Page buildFromPath(String path) throws Exception {
Configuration conf = Configuration.getConfiguration();
TemplateResolver templateResolver = conf.getTemplateResolver();
Template template = templateResolver.findTemplate(path);
if (template == null) {
return null;
} else {
return new Page(template);
}
}
protected Document renderTemplate(Template template) throws Exception {
Configuration conf = Configuration.getConfiguration();
Document doc = template.getDocumentClone();
doc.outputSettings().prettyPrint(conf.isOutputAsPrettyPrint());
InterceptorUtil.executeWithInterceptors(doc, WrapperPageInterceptorList, new Executor<Document>() {
@Override
public void execute(Document doc) throws Exception {
RenderUtil.applySnippets(doc);
RenderUtil.applyMessages(doc);
RenderUtil.applyClearAction(doc, true);
}
});
return doc;
}
public Document getRenderedDocument() {
return renderedDocument;
}
public void output(OutputStream out) throws Exception {
out.write(renderedDocument.outerHtml().getBytes("utf-8"));
}
public String output() {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
output(bos);
return bos.toString("utf-8");
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
}
}
}