/*
* Copyright (c) 1998-2009 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus;
import java.io.IOException;
import java.io.OutputStream;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.NullValue;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.page.InterpretedPage;
import com.caucho.quercus.page.QuercusPage;
import com.caucho.quercus.parser.QuercusParser;
import com.caucho.quercus.program.QuercusProgram;
import com.caucho.vfs.Path;
import com.caucho.vfs.ReadStream;
import com.caucho.vfs.StdoutStream;
import com.caucho.vfs.StreamImpl;
import com.caucho.vfs.StringPath;
import com.caucho.vfs.WriteStream;
public class QuercusEngine
{
private QuercusContext _quercus;
private OutputStream _out;
public QuercusEngine()
{
_quercus = new QuercusContext();
}
/**
* Returns the Quercus object.
*/
public QuercusContext getQuercus()
{
return _quercus;
}
/**
* Sets a php-ini value.
*/
public void setIni(String name, String value)
{
_quercus.setIni(name, value);
}
/**
* Sets the output stream.
*/
public void setOutputStream(OutputStream out)
{
_out = out;
}
/**
* Executes the script
*/
public Value executeFile(String filename)
throws IOException
{
Path path = _quercus.getPwd().lookup(filename);
return execute(path);
}
/**
* Executes the script.
*/
public Value execute(String script)
throws IOException
{
return execute(new StringPath(script));
}
/**
* Executes the script.
*/
public Value execute(Path path)
throws IOException
{
ReadStream reader = path.openRead();
QuercusProgram program = QuercusParser.parse(_quercus, null, reader);
OutputStream os = _out;
WriteStream out;
if (os != null) {
OutputStreamStream s = new OutputStreamStream(os);
WriteStream ws = new WriteStream(s);
ws.setNewlineString("\n");
try {
ws.setEncoding("iso-8859-1");
} catch (Exception e) {
}
out = ws;
}
else
out = new WriteStream(StdoutStream.create());
QuercusPage page = new InterpretedPage(program);
Env env = new Env(_quercus, page, out, null, null);
Value value = NullValue.NULL;
try {
value = program.execute(env);
}
catch (QuercusExitException e) {
}
out.flushBuffer();
out.free();
if (os != null)
os.flush();
return value;
}
class OutputStreamStream extends StreamImpl
{
OutputStream _out;
OutputStreamStream(OutputStream out)
{
_out = out;
}
/**
* Returns true if this is a writable stream.
*/
public boolean canWrite()
{
return true;
}
/**
* Writes a buffer to the underlying stream.
*
* @param buffer the byte array to write.
* @param offset the offset into the byte array.
* @param length the number of bytes to write.
* @param isEnd true when the write is flushing a close.
*/
public void write(byte []buffer, int offset, int length, boolean isEnd)
throws IOException
{
_out.write(buffer, offset, length);
}
}
}