php.java.script.servlet
Class PhpServletLocalHttpServerScriptEngine

java.lang.Object
  javax.script.AbstractScriptEngine
      php.java.script.SimplePhpScriptEngine
          php.java.script.PhpScriptEngine
              php.java.script.servlet.PhpServletLocalHttpServerScriptEngine

All Implemented Interfaces:

ScriptEngine

Direct Known Subclasses:

PhpServletScriptEngine

 class PhpServletLocalHttpServerScriptEngine
extends PhpScriptEngine

A PHP script engine for Servlets. See ContextLoaderListener for details. 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 getHelloScript() {
if (script!=null) return script;

String webCacheDir = ctx.getRealPath(req.getServletPath());
Reader reader = new StringReader ("<?php echo 'hello from PHP'; ?>");
return EngineFactory.getPhpScript(webCacheDir, reader);
}


2. Acquire a PHP script engine from the EngineFactory:

   ScriptEngine scriptEngine = EngineFactory.getPhpScriptEngine(this, ctx, req, res, "HTTP", 80);

3. Create a FileReader for the created script file:

   Reader readerHello = EngineFactory.createPhpScriptFileReader(getHelloScript());

4. Connect its output:

   scriptEngine.getContext().setWriter (out);

5. Evaluate the engine:

   scriptEngine.eval(readerHello);

6. Close the reader:

   readerHello.close();

Field Summary

protected boolean	overrideHosts
protected javax.servlet.http.HttpServletRequest	req
protected javax.servlet.http.HttpServletResponse	res
protected PhpSimpleHttpScriptContext	scriptContext
protected javax.servlet.Servlet	servlet
protected javax.servlet.ServletContext	servletCtx
protected java.lang.String	webPath

Fields inherited from class php.java.script.SimplePhpScriptEngine

continuation, ctx, env, name, processEnvironment, resultProxy, script, scriptClosure

Fields inherited from interface javax.script.ScriptEngine

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

Constructor Summary

PhpServletLocalHttpServerScriptEngine(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

protected java.lang.Object	eval(java.io.Reader reader, ScriptContext context, java.lang.String name)
protected ScriptContext	getPhpScriptContext()
protected java.net.URL	getURL(java.lang.String filePath)
protected void	releaseReservedContinuation()
protected void	reserveContinuation()
protected void	setNewContextFactory() Create a new context ID and a environment map which we send to the client.
(package private) static void	setStandardEnvironmentValues(IContextFactory ctx, java.util.Map env, javax.servlet.http.HttpServletRequest req, java.lang.String webPath, boolean overrideHosts)
protected void	setStandardEnvironmentValues(java.util.Map env) Set the context id (X_JAVABRIDGE_CONTEXT) and the override flag (X_JAVABRIDGE_OVERRIDE_HOSTS) into env

Methods inherited from class php.java.script.SimplePhpScriptEngine

close, createBindings, doEval, eval, eval, getContinuation, getFactory, initialize, release, setName

Methods inherited from class javax.script.AbstractScriptEngine

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

Methods inherited from class java.lang.Object

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

Field Detail

servlet

protected javax.servlet.Servlet servlet

servletCtx

protected javax.servlet.ServletContext servletCtx

req

protected javax.servlet.http.HttpServletRequest req

res

protected javax.servlet.http.HttpServletResponse res

scriptContext

protected PhpSimpleHttpScriptContext scriptContext

webPath

protected java.lang.String webPath

overrideHosts

protected boolean overrideHosts

Constructor Detail

PhpServletLocalHttpServerScriptEngine

public PhpServletLocalHttpServerScriptEngine(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

Throws:

java.net.MalformedURLException

Method Detail

getURL

protected java.net.URL getURL(java.lang.String filePath)
                       throws java.net.MalformedURLException,
                              java.net.URISyntaxException

Throws:

java.net.MalformedURLException

java.net.URISyntaxException

getPhpScriptContext

protected ScriptContext getPhpScriptContext()

Overrides:

getPhpScriptContext in class SimplePhpScriptEngine

setNewContextFactory

protected void setNewContextFactory()

Create a new context ID and a environment map which we send to the client.

Overrides:

setNewContextFactory in class SimplePhpScriptEngine

eval

protected java.lang.Object eval(java.io.Reader reader,
                                ScriptContext context,
                                java.lang.String name)
                         throws ScriptException

Overrides:

eval in class PhpScriptEngine

Throws:

ScriptException

releaseReservedContinuation

protected void releaseReservedContinuation()

reserveContinuation

protected void reserveContinuation()
                            throws ScriptException

Throws:

ScriptException

setStandardEnvironmentValues

protected void setStandardEnvironmentValues(java.util.Map env)

Set the context id (X_JAVABRIDGE_CONTEXT) and the override flag (X_JAVABRIDGE_OVERRIDE_HOSTS) into env

Overrides:

setStandardEnvironmentValues in class SimplePhpScriptEngine

Parameters:

env - the environment which will be passed to PHP

setStandardEnvironmentValues

static void setStandardEnvironmentValues(IContextFactory ctx,
                                         java.util.Map env,
                                         javax.servlet.http.HttpServletRequest req,
                                         java.lang.String webPath,
                                         boolean overrideHosts)