php.java.script.servlet
Class InvocablePhpServletLocalScriptEngine

java.lang.Object
  javax.script.AbstractScriptEngine
      php.java.script.SimplePhpScriptEngine
          php.java.script.InvocablePhpScriptEngine
              php.java.script.servlet.InvocablePhpServletLocalHttpServerScriptEngine
                  php.java.script.servlet.InvocablePhpServletLocalScriptEngine

All Implemented Interfaces:

java.io.Closeable, Invocable, ScriptEngine

Direct Known Subclasses:

InvocablePhpServletScriptEngine

public class InvocablePhpServletLocalScriptEngine
extends InvocablePhpServletLocalHttpServerScriptEngine

A PHP script engine which implements the Invocable interface for Servlets. See ContextLoaderListener for details. PHP scripts are evaluated as follows:

1. "http://127.0.0.1:CURRENT_PORT/CURRENT_WEBAPP/java/JavaProxy.php" is requested from Java
   
2. Your script is evaluated
3. <?php java_context()->call(java_closure());?> is called in order to make the script invocable
   

In order to evaluate PHP methods follow these steps:

1. Create a factory which creates a PHP script file from a reader using the methods from EngineFactory:

   private static File script;
private static final File getScriptF() {
if (script!=null) return script;

String webCacheDir = ctx.getRealPath(req.getServletPath());
Reader reader = new StringReader ("<?php function f($v) {return "passed:".$v;} ?>");
return EngineFactory.getPhpScript(webCacheDir, reader);
}


2. Acquire a PHP invocable script engine from the EngineFactory:

   ScriptEngine scriptEngine = EngineFactory.getInvocablePhpScriptEngine(this, ctx, req, res);

3. Create a FileReader for the created script file:

   Reader readerF = EngineFactory.createPhpScriptFileReader(getScriptF());

4. Evaluate the engine:

   scriptEngine.eval(readerF);

5. Close the reader obtained from the EngineFactory:

   readerF.close();

6. Cast the engine to Invocable:

   Invocable invocableEngine = (Invocable)scriptEngine;

7. Call PHP functions or methods:

   System.out.println("result from PHP:" + invocableEngine.invoceFunction(f, new Object[]{"arg1"}));

8. Release the invocable by evaluating the engine again with a NULL value.

   ((Closeable)scriptEngine).close();

Field Summary

Fields inherited from interface javax.script.ScriptEngine

ARGV, ENGINE, ENGINE_VERSION, FILENAME, LANGUAGE, LANGUAGE_VERSION, NAME

Constructor Summary

InvocablePhpServletLocalScriptEngine(javax.servlet.Servlet servlet, javax.servlet.ServletContext ctx, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, java.lang.String protocol, int port)

Method Summary

Methods inherited from class php.java.script.InvocablePhpScriptEngine

getInterface, getInterface, invoke, invoke, invokeFunction, invokeMethod, release

Methods inherited from class php.java.script.SimplePhpScriptEngine

close, createBindings, eval, eval, getFactory

Methods inherited from class javax.script.AbstractScriptEngine

eval, eval, eval, eval, get, getBindings, getContext, put, setBindings, setContext

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InvocablePhpServletLocalScriptEngine

public InvocablePhpServletLocalScriptEngine(javax.servlet.Servlet servlet,
                                            javax.servlet.ServletContext ctx,
                                            javax.servlet.http.HttpServletRequest req,
                                            javax.servlet.http.HttpServletResponse res,
                                            java.lang.String protocol,
                                            int port)
                                     throws java.net.MalformedURLException,
                                            java.net.URISyntaxException

Throws:

java.net.MalformedURLException

java.net.URISyntaxException