PhpScriptContext.java

/*-*- mode: Java; tab-width:8 -*-*/

package php.java.script;

/*
 * Copyright (C) 2003-2007 Jost Boekemeier
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

import java.io.IOException;
import java.io.OutputStream;
import java.io.Reader;
import java.util.Collections;
import java.util.Map;

import javax.script.ScriptContext;

import php.java.bridge.ILogger;
import php.java.bridge.JavaBridgeRunner;
import php.java.bridge.NotImplementedException;
import php.java.bridge.Util;
import php.java.bridge.http.ContextServer;
import php.java.bridge.http.HeaderParser;
import php.java.bridge.http.IContext;

/**
 * This class implements a simple script context for PHP. It starts a standalone 
 * <code>JavaBridgeRunner</code> which listens for requests from php instances.<p>
 * 
 * In a servlet environment please use a <code>php.java.script.http.PhpSimpleHttpScriptContext</code> instead.
 * @see php.java.script.PhpScriptContext
 * @see php.java.bridge.JavaBridgeRunner
 * @author jostb
 *
 */

public final class PhpScriptContext extends AbstractPhpScriptContext {
    public PhpScriptContext(ScriptContext ctx) {
	super(ctx);
    }
    /**{@inheritDoc}*/
    public Object init(Object callable) throws Exception {
	return php.java.bridge.http.Context.getManageable(callable);
    }
    /**{@inheritDoc}*/
    public void onShutdown(Object closeable) {
	php.java.bridge.http.Context.handleManaged(closeable);
    }
    /**
     * Throws IllegalStateException
     * @return none
     */
    public Object getHttpServletRequest() {
	throw new IllegalStateException("PHP not running in a servlet environment");
    }
    
    /**
     * Throws IllegalStateException
     * @return none
     */
    public Object getServletContext() {
	throw new IllegalStateException("PHP not running in a servlet environment");
    }
    
    /**
     * Throws IllegalStateException
     * @return none
     */
    public Object getHttpServletResponse() {
	throw new IllegalStateException("PHP not running in a servlet environment");
    }
    /**
     * Throws IllegalStateException
     * @return none
     */
    public Object getServlet() {
	throw new IllegalStateException("PHP not running in a servlet environment");
    }
    /**
     * Throws IllegalStateException
     * @return none
     */
    public Object getServletConfig() {
	throw new IllegalStateException("PHP not running in a servlet environment");
    }

    /**{@inheritDoc}*/
    public String getRealPath(String path) {
	return php.java.bridge.http.Context.getRealPathInternal(path);
    }
    /**{@inheritDoc}*/
    public Object get(String key) {
	  return getBindings(IContext.ENGINE_SCOPE).get(key);
    }
    /**{@inheritDoc}*/
    public void put(String key, Object val) {
	  getBindings(IContext.ENGINE_SCOPE).put(key, val);
    }
    /**{@inheritDoc}*/
    public void remove(String key) {
	  getBindings(IContext.ENGINE_SCOPE).remove(key);
    }
    /**{@inheritDoc}*/
    public void putAll(Map map) {
	  getBindings(IContext.ENGINE_SCOPE).putAll(map);
    }
    /**{@inheritDoc}*/
    public Map getAll() {
	return Collections.unmodifiableMap(getBindings(IContext.ENGINE_SCOPE));
    }
    /**{@inheritDoc}*/
    public Continuation createContinuation(Reader reader, Map env,
            OutputStream out, OutputStream err, HeaderParser headerParser, ResultProxy result,
            ILogger logger, boolean isCompiled) {
		Continuation cont;
		
		if (isCompiled)
	    		cont = new FastCGIProxy(reader, env, out,  err, headerParser, result, logger); 
		else
    			cont = new HttpProxy(reader, env, out,  err, headerParser, result, logger);
		
		return cont;
    }
    private static JavaBridgeRunner httpServer;
    private static synchronized final JavaBridgeRunner getHttpServer() {
	if (httpServer!=null) return httpServer;
	try {
	    return httpServer = JavaBridgeRunner.getRequiredInstance();
        } catch (IOException e) {
            Util.printStackTrace(e);
            return null;
        }
    }
    /**{@inheritDoc}*/
    public String getSocketName() {
	return getHttpServer().getSocket().getSocketName();
    }
    /**@deprecated*/
    public String getRedirectString() {
	throw new NotImplementedException();
    }
    /**@deprecated*/
    public String getRedirectString(String webPath) {
	throw new NotImplementedException();
    }
    /**{@inheritDoc}*/
    public String getRedirecturl(String webPath) {
	return "http://127.0.0.1:"+getSocketName()+webPath;
    }
    /**{@inheritDoc}*/
    public ContextServer getContextServer() {
	return getHttpServer().getContextServer();
    }
}