/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.camel.manual;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.ccil.cowan.tagsoup.Parser;
import org.ccil.cowan.tagsoup.XMLWriter;
public class ManualGenerator {
String page;
String output;
String head;
String version;
String targetDir;
public ManualGenerator(String[] args) {
page = args[0];
output = args[1];
version = args[2];
head = args[3];
targetDir = args[4];
}
public void run() {
try {
if (doGenerate()) {
String content = grabBodyContent();
storeHTMLFile(content);
}
} catch (MalformedURLException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private void storeHTMLFile(String content) throws IOException {
String replaceToken = "<h3 id=\"replaceme\">.*</h3>";
String replaceValue = "<h3>Version " + version + "</h3>";
File outFile = new File(output);
outFile.getParentFile().mkdirs();
PrintWriter out = new PrintWriter(new BufferedOutputStream(new FileOutputStream(outFile)));
out.println("<html>");
out.println("<head>");
if (head != null) {
out.println(head);
}
out.println("</head>");
if (replaceToken != null && replaceValue != null) {
content = content.replaceAll(replaceToken, replaceValue);
}
out.print("<body>");
out.print(content);
out.println("</body>");
out.close();
}
private boolean doGenerate() throws MalformedURLException, IOException {
URL url = new URL(page);
File file = new File(targetDir, ".manualCache-" + url.getFile().substring(1));
if (file.exists()) {
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setRequestMethod("HEAD");
long date = con.getLastModified();
FileReader reader = new FileReader(file);
char chars[] = new char[1000];
int i = reader.read(chars);
reader.close();
long lastDate = Long.parseLong(new String(chars, 0, i).trim());
if (date <= lastDate) {
return false;
}
}
return true;
}
private String grabBodyContent() throws MalformedURLException, IOException {
URL url = new URL(page);
File file = new File(targetDir, ".manualCache-" + url.getFile().substring(1));
try {
HttpURLConnection con = (HttpURLConnection)url.openConnection();
XMLReader parser = new Parser();
parser.setFeature(Parser.namespacesFeature, false);
parser.setFeature(Parser.namespacePrefixesFeature, false);
parser.setProperty(Parser.schemaProperty, new org.ccil.cowan.tagsoup.HTMLSchema() {
{
//problem with nested lists that the confluence {toc} macro creates
elementType("ul", M_LI, M_BLOCK | M_LI, 0);
}
});
StringWriter w = new StringWriter();
XMLWriter xmlWriter = new XMLWriter(w) {
int inDiv = Integer.MAX_VALUE;
int count;
public void characters(char ch[], int start, int len)
throws SAXException {
if (inDiv <= count) {
super.characters(ch, start, len);
}
}
public void startElement(String uri, String localName, String qName, Attributes atts)
throws SAXException {
count++;
if ("div".equalsIgnoreCase(qName)
&& "wiki-content maincontent".equalsIgnoreCase(atts.getValue("class"))) {
inDiv = count;
}
if (inDiv <= count) {
super.startElement(uri, localName, qName, atts);
}
}
public void endElement(String uri, String localName, String qName) throws SAXException {
if (inDiv <= count) {
super.endElement(uri, localName, qName);
}
count--;
if (inDiv > count) {
inDiv = Integer.MAX_VALUE;
}
}
};
xmlWriter.setOutputProperty(XMLWriter.OMIT_XML_DECLARATION, "yes");
xmlWriter.setOutputProperty(XMLWriter.METHOD, "html");
parser.setContentHandler(xmlWriter);
long date = con.getLastModified();
parser.parse(new InputSource(new BufferedInputStream(con.getInputStream())));
FileWriter writer = new FileWriter(file);
writer.write(Long.toString(date));
writer.close();
return w.toString();
} catch (Throwable e) {
e.printStackTrace();
throw new RuntimeException("Failed", e);
}
}
/**
* @param args
*/
public static void main(String[] args) {
/*args = new String[] {
"http://camel.apache.org/book-in-one-page.html",
"/tmp/foo.html",
"1.0",
""
};*/
new ManualGenerator(args).run();
}
}