/* Copyright (C) 2010 Softabar
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.softabar.lipsum;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Hashtable;
import java.util.Map;
import java.util.Properties;
import java.util.Vector;
/**
* LoremIpsum4J generates Lorem Ipsum paragraphs and words.
* This class uses lorem ipsum web service in www.lipsum.com.
*<pre>
* Copyright (C) 2010 Softabar
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*</pre>
* @version 1.3.0
*
*/
public class LoremIpsum4J
{
public static final String version = "1.3.0";
private boolean startWithLoremIpsum = true;
private String loremIpsumUrl = "http://www.lipsum.com/feed/xml";
private int generatedParagraphs = 0;
private int generatedWords = 0;
private int generatedBytes = 0;
private boolean cached = false;
private Map<String, String[]> loremIpsumCache = new Hashtable<String, String[]>();
/**
* Get Lorem Ipsum paragraphs.
*
* @param numberOfParagraphs
* Number of lorem ipsum paragraphs.
* @return Array of lorem ipsum paragraphs.
*/
public String[] getParagraphs(int numberOfParagraphs)
{
return getLoremIpsum("paras", numberOfParagraphs);
}
/**
* Get Lorem Ipsum words.
*
* @param numberOfWords
* Number of lorem ipsum words.
* @return Array of lorem ipsum paragraphs. Total word count equals parameter
* numberOfParagraphs.
*/
public String[] getWords(int numberOfWords)
{
return getLoremIpsum("words", numberOfWords);
}
/**
* Get Lorem Ipsum bytes.
*
* @param numberOfBytes
* Number of lorem ipsum bytes.
* @return Array of lorem ipsum paragraphs that contain lorem ipsum words.
*/
public String[] getBytes(int numberOfBytes)
{
return getLoremIpsum("bytes", numberOfBytes);
}
private String[] getLoremIpsum(String type, int numberOf)
{
String[] paragraphs = new String[0];
if (cached)
{
// return from cache
paragraphs = (String[]) loremIpsumCache.get(type + numberOf);
if (paragraphs != null)
{
return paragraphs;
}
}
try
{
String url = getUrl(type, numberOf);
String loremIpsumFragment = getLoremIpsumString(url);
paragraphs = getParagraphs(loremIpsumFragment);
if (cached)
{
loremIpsumCache.put(type + numberOf, paragraphs);
}
}
catch (IOException e)
{
e.printStackTrace();
return paragraphs;
}
return paragraphs;
}
private String getUrl(String type, int numberOf)
{
String start = startWithLoremIpsum ? "yes" : "no";
StringBuffer sb = new StringBuffer(loremIpsumUrl);
sb.append("?amount=");
sb.append(numberOf);
sb.append("&what=");
sb.append(type);
sb.append("&start=");
sb.append(start);
return sb.toString();
}
private String[] getParagraphs(String loremIpsumFragment)
{
String[] paragraphs = new String[0];
Vector<String> vr = new Vector<String>();
BufferedReader br = new BufferedReader(new InputStreamReader(
new ByteArrayInputStream(loremIpsumFragment.getBytes())));
try
{
for (String line = br.readLine(); line != null; line = br.readLine())
{
vr.add(line);
}
}
catch (IOException e)
{
e.printStackTrace();
}
paragraphs = new String[vr.size()];
vr.copyInto(paragraphs);
return paragraphs;
}
private String getLoremIpsumString(String loremIpsumUrl) throws IOException
{
URL url = new URL(loremIpsumUrl);
BufferedInputStream bis = new BufferedInputStream(url.openStream());
StringBuffer content = new StringBuffer();
for (int b = bis.read(); b > -1; b = bis.read())
{
content.append((char) b);
}
bis.close();
String loremIpsumXML = content.toString();
String loremIpsumFragment = getTag("lipsum", loremIpsumXML);
// get generated bytes, paragraphs and words
String generated = getTag("generated", loremIpsumXML);
String[] genBytes = generated.split(" ");
int k = 0;
for (int i = 0; i < genBytes.length; i++)
{
try
{
int value = Integer.parseInt(genBytes[i]);
switch (k)
{
case 0:
generatedParagraphs = value;
k++;
break;
case 1:
generatedWords = value;
k++;
break;
case 2:
generatedBytes = value;
k++;
break;
}
}
catch (NumberFormatException nfe)
{
// ignore non-numbers
}
}
return loremIpsumFragment;
}
private String getTag(String tagName, String loremIpsumXML)
{
String tagStart = "<" + tagName + ">";
String tagEnd = "</" + tagName + ">";
int tagStartIndex = loremIpsumXML.indexOf(tagStart) + tagStart.length();
int tagEndIndex = loremIpsumXML.indexOf(tagEnd, tagStartIndex);
String text = loremIpsumXML.substring(tagStartIndex, tagEndIndex);
return text;
}
private void print(String[] loremIpsum)
{
for (int i = 0; i < loremIpsum.length; i++)
{
System.out.println(loremIpsum[i]);
System.out.println();
}
}
/**
* Return current setting of start with "lorem ipsum" option.
*
* @return Current setting of "lorem ipsum" option.
*/
public boolean isStartWithLoremIpsum()
{
return startWithLoremIpsum;
}
/**
* Set option to start with classic "Lorem ipsum". Default is true.
*
* @param startWithLoremIpsum
* Set start with "lorem ipsum".
*/
public void setStartWithLoremIpsum(boolean startWithLoremIpsum)
{
this.startWithLoremIpsum = startWithLoremIpsum;
}
public static void main(String[] args)
{
LoremIpsum4J loremIpsum = new LoremIpsum4J();
System.out.println("LoremIpsum4J v" + version
+ " Copyright (C) 2006, 2010 Softabar");
System.out.println("www.softabar.com & www.lipsum.com");
System.out.println();
try
{
Properties options = loremIpsum.cmdLineOptions(args);
if (options.get("help") != null)
{
loremIpsum.usage();
return;
}
loremIpsum.setStartWithLoremIpsum(Boolean.parseBoolean(options
.getProperty("start")));
String[] _loremIpsum = loremIpsum
.getLoremIpsum(options.getProperty("type"), Integer.parseInt(options
.getProperty("amount")));
loremIpsum.print(_loremIpsum);
}
catch (Exception e)
{
System.out.println(e.toString());
System.out.println();
loremIpsum.usage();
}
}
private void usage()
{
System.out
.println("Usage: java "
+ getClass().getName()
+ " [-type <paras | words | bytes>] [-amount number] [-start <true | false>]");
System.out
.println("Default type is paras, default amount is 5 and default start with lorem ipsum is true.");
}
private Properties cmdLineOptions(String[] args)
{
Properties props = new Properties();
props.put("type", "paras");
props.put("amount", "5");
props.put("start", "true");
for (int i = 0; i < args.length; i++)
{
String arg = args[i];
if (arg.equals("-type"))
{
props.put("type", args[i + 1]);
}
if (arg.equals("-amount"))
{
props.put("amount", args[i + 1]);
}
if (arg.equals("-start"))
{
props.put("start", args[i + 1]);
}
if (arg.equals("-h") || arg.equals("--help"))
{
props.put("help", "showHelp");
}
}
return props;
}
/**
* Return number of bytes generated in the last call to getParagraphs(),
* getBytes() or getWords() method.
*
* @return Number of generated bytes.
*/
public int getGeneratedBytes()
{
return generatedBytes;
}
/**
* Return number of paragraphs generated in the last call to getParagraphs(),
* getBytes() or getWords() method.
*
* @return Number of generated paragraphs.
*/
public int getGeneratedParagraphs()
{
return generatedParagraphs;
}
/**
* Return number of words generated in the last call to getParagraphs(),
* getBytes() or getWords() method.
*
* @return Number of generated words.
*/
public int getGeneratedWords()
{
return generatedWords;
}
/**
* Return cache status.
*
* @return True if cache is enabled.
*/
public boolean isCached()
{
return cached;
}
/**
* Enable/disable cache. Lorem Ipsum paragraphs are cached based on
* request lorem ipsum (words, paragraphs, bytes) and number of
* requested lorem ipsum.
*
* @param cached Set cache status.
*/
public void setCached(boolean cached)
{
this.cached = cached;
}
}
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