/*
* 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.template;
import java.io.IOException;
import java.io.InputStream;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.parser.BlockTagSupportHtmlTreeBuilder;
import org.jsoup.parser.Parser;
import com.astamuse.asta4d.Configuration;
import com.astamuse.asta4d.Context;
import com.astamuse.asta4d.extnode.ExtNodeConstants;
import com.astamuse.asta4d.util.IdGenerator;
public class Template {
private String path;
private Document doc;
/**
*
* @param path
* not being used, just for debug purpose
* @param input
* @throws IOException
*/
public Template(String path, InputStream input) throws TemplateException {
try {
this.path = path;
this.doc = Jsoup.parse(input, "UTF-8", "", new Parser(new BlockTagSupportHtmlTreeBuilder()));
// this.doc = Jsoup.parse(input, "UTF-8", "");
initDocument();
} catch (Exception e) {
String msg = String.format("Template %s initialize failed.", path);
throw new TemplateException(msg, e);
}
}
private void initDocument() throws TemplateException {
// find inject
processExtension();
TemplateUtil.regulateElement(doc);
}
private void processExtension() throws TemplateException {
Element extension = doc.select(ExtNodeConstants.EXTENSION_NODE_TAG_SELECTOR).first();
if (extension != null) {
String parentPath = extension.attr(ExtNodeConstants.EXTENSION_NODE_ATTR_PARENT);
if (parentPath == null || parentPath.isEmpty()) {
throw new TemplateException(String.format("You must specify the parent of an extension (%s).", this.path));
}
Configuration conf = Context.getCurrentThreadContext().getConfiguration();
Template parent = conf.getTemplateResolver().findTemplate(parentPath);
Document parentDoc = parent.getDocumentClone();
TemplateUtil.mergeBlock(parentDoc, extension);
doc = parentDoc;
}
}
public String getPath() {
return path;
}
public Document getDocumentClone() {
Document newDoc = doc.clone();
newDoc.attr(ExtNodeConstants.ATTR_DOC_REF, "doc-" + IdGenerator.createId());
return newDoc;
}
}