php.java.script.servlet
Class EngineFactory

java.lang.Object
  php.java.script.servlet.EngineFactory

public final class EngineFactory
extends java.lang.Object

Create JSR 223 script engines from a servlet context.

See Also:

ContextLoaderListener, InvocablePhpServletScriptEngine, PhpServletScriptEngine

Field Summary

static java.lang.String

ROOT_ENGINE_FACTORY_ATTRIBUTE The key used to store the factory in the servlet context

Constructor Summary

EngineFactory()
Create a new EngineFactory

Method Summary

static java.io.FileReader	createPhpScriptFileReader(java.io.File phpScriptFile) Use createPhpScriptFileReader(ScriptFile) instead
static java.io.FileReader	createPhpScriptFileReader(ScriptFile phpScriptFile) Create a Reader from a given PHP script file.
static ScriptEngine	getInvocablePhpScriptEngine(javax.servlet.Servlet servlet, javax.servlet.ServletContext ctx, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) Get a PHP JSR 223 ScriptEngine which implements the Invocable interface from the servlet context.
static ScriptEngine	getInvocablePhpScriptEngine(javax.servlet.Servlet servlet, javax.servlet.ServletContext ctx, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, java.lang.String protocol, int port) Get a PHP JSR 223 ScriptEngine, which implements the Invocable interface, from a HTTP server running on the local host.
static ScriptEngine	getInvocablePhpScriptEngine(javax.servlet.Servlet servlet, javax.servlet.ServletContext ctx, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, java.lang.String protocol, int port, java.lang.String proxy) Get a PHP JSR 223 ScriptEngine, which implements the Invocable interface, from a HTTP server running on the local host.
static ScriptFile	getPhpScript(java.lang.String path) Get a PHP script from the given Path.
static ScriptFile	getPhpScript(java.lang.String path, java.io.Reader reader) Get a PHP script from the given Path.
static ScriptFile	getPhpScript(java.lang.String webPath, java.lang.String path) Get a PHP script from the given Path.
static ScriptFile	getPhpScript(java.lang.String webPath, java.lang.String path, java.io.Reader reader) Get a PHP script from the given Path.
static ScriptEngine	getPhpScriptEngine(javax.servlet.Servlet servlet, javax.servlet.ServletContext ctx, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) Get a PHP JSR 223 ScriptEngine from the servlet context.
static java.lang.String	getRealPath(javax.servlet.ServletContext ctx, java.lang.String path) Wrapper for ServletContext.getRealPath(String), throws an IllegalArgumentException if the path could not be determined.
void	releaseScriptEngines(java.util.List list) Only for internal use.

Methods inherited from class java.lang.Object

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

Field Detail

ROOT_ENGINE_FACTORY_ATTRIBUTE

public static final java.lang.String ROOT_ENGINE_FACTORY_ATTRIBUTE

The key used to store the factory in the servlet context

Constructor Detail

EngineFactory

public EngineFactory()

Create a new EngineFactory

Method Detail

getPhpScriptEngine

public static ScriptEngine getPhpScriptEngine(javax.servlet.Servlet servlet,
                                              javax.servlet.ServletContext ctx,
                                              javax.servlet.http.HttpServletRequest req,
                                              javax.servlet.http.HttpServletResponse res)
                                       throws java.lang.Exception

Get a PHP JSR 223 ScriptEngine from the servlet context. Example:

ScriptEngine scriptEngine = EngineFactory.getPhpScriptEngine(this, application, request, response);
scriptEngine.eval(reader);
reader.close();


Parameters:

servlet - the servlet

ctx - the servlet context

req - the request

res - the response

Returns:

the PHP JSR 223 ScriptEngine

Throws:

java.lang.Exception

java.net.MalformedURLException

java.lang.IllegalStateException

getInvocablePhpScriptEngine

public static ScriptEngine getInvocablePhpScriptEngine(javax.servlet.Servlet servlet,
                                                       javax.servlet.ServletContext ctx,
                                                       javax.servlet.http.HttpServletRequest req,
                                                       javax.servlet.http.HttpServletResponse res)
                                                throws java.lang.Exception

Get a PHP JSR 223 ScriptEngine which implements the Invocable interface from the servlet context. Example:

ScriptEngine scriptEngine = EngineFactory.getInvocablePhpScriptEngine(this, application, request, response);
...
scriptEngine.eval(reader);
reader.close ();
Invocable invocableEngine = (Invocable)scriptEngine;
invocableEngine.invoceFunction("phpinfo", new Object[]{});
...
scriptEngine.eval ((Reader)null);


Parameters:

servlet - the servlet

ctx - the servlet context

req - the request

res - the response

Returns:

the invocable PHP JSR 223 ScriptEngine

Throws:

java.lang.Exception

java.net.MalformedURLException

java.lang.IllegalStateException

getInvocablePhpScriptEngine

public static ScriptEngine getInvocablePhpScriptEngine(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.lang.Exception

Get a PHP JSR 223 ScriptEngine, which implements the Invocable interface, from a HTTP server running on the local host. Example:

ScriptEngine scriptEngine = EngineFactory.getInvocablePhpScriptEngine(this, application, request, response, "HTTP", 80);
...
scriptEngine.eval(reader);
reader.close ();
Invocable invocableEngine = (Invocable)scriptEngine;
invocableEngine.invoceFunction("phpinfo", new Object[]{});
...
scriptEngine.eval ((Reader)null);


Parameters:

servlet - the servlet

ctx - the servlet context

req - the request

res - the response

protocol - either "HTTP" or "HTTPS"

port - the port number

Returns:

the invocable PHP JSR 223 ScriptEngine

Throws:

java.lang.Exception

java.net.MalformedURLException

java.lang.IllegalStateException

getInvocablePhpScriptEngine

public static ScriptEngine getInvocablePhpScriptEngine(javax.servlet.Servlet servlet,
                                                       javax.servlet.ServletContext ctx,
                                                       javax.servlet.http.HttpServletRequest req,
                                                       javax.servlet.http.HttpServletResponse res,
                                                       java.lang.String protocol,
                                                       int port,
                                                       java.lang.String proxy)
                                                throws java.lang.Exception

Get a PHP JSR 223 ScriptEngine, which implements the Invocable interface, from a HTTP server running on the local host. Example:

ScriptEngine scriptEngine = EngineFactory.getInvocablePhpScriptEngine(this, application, request, response, "HTTP", 80);
...
scriptEngine.eval(reader);
reader.close ();
Invocable invocableEngine = (Invocable)scriptEngine;
invocableEngine.invoceFunction("phpinfo", new Object[]{});
...
scriptEngine.eval ((Reader)null);


Parameters:

servlet - the servlet

ctx - the servlet context

req - the request

res - the response

protocol - either "HTTP" or "HTTPS"

port - the port number

proxy - the name of the PHP proxy, for example "/JavaProxy.php"

Returns:

the invocable PHP JSR 223 ScriptEngine

Throws:

java.lang.Exception

java.net.MalformedURLException

java.lang.IllegalStateException

getPhpScript

public static ScriptFile getPhpScript(java.lang.String path,
                                      java.io.Reader reader)

Get a PHP script from the given Path. This procedure can be used to cache dynamically-generated scripts

Parameters:

path - the file path which should contain the cached script, must be within the web app directory

reader - the JSR 223 script reader

Returns:

A pointer to the cached PHP script, named: path+"._cache_.php"

See Also:

createPhpScriptFileReader(File)

getPhpScript

public static ScriptFile getPhpScript(java.lang.String webPath,
                                      java.lang.String path,
                                      java.io.Reader reader)

Get a PHP script from the given Path. This procedure can be used to cache dynamically-generated scripts

Parameters:

webPath - the web path of the script or the web path of a resource within the current context

path - the file path which should contain the cached script

reader - the JSR 223 script reader

Returns:

A pointer to the cached PHP script, named: path+"._cache_.php"

See Also:

createPhpScriptFileReader(File)

getPhpScript

public static ScriptFile getPhpScript(java.lang.String path)

Get a PHP script from the given Path. This procedure can be used to cache dynamically-generated scripts

Parameters:

path - the file path which should contain the cached script, must be within the web app directory

Returns:

A pointer to the cached PHP script, usually named: path+"._cache_.php"

See Also:

createPhpScriptFileReader(File)

getPhpScript

public static ScriptFile getPhpScript(java.lang.String webPath,
                                      java.lang.String path)

Get a PHP script from the given Path. This procedure can be used to cache dynamically-generated scripts

Parameters:

webPath - the web path of the script or the web path of a resource within the current context

path - the file path which should contain the cached script

Returns:

A pointer to the cached PHP script, usually named: path+"._cache_.php"

See Also:

createPhpScriptFileReader(File)

getRealPath

public static java.lang.String getRealPath(javax.servlet.ServletContext ctx,
                                           java.lang.String path)

Wrapper for ServletContext.getRealPath(String), throws an IllegalArgumentException if the path could not be determined.

Parameters:

ctx - ServletContext

path - the resource path

Returns:

The full path to the resource.

createPhpScriptFileReader

public static java.io.FileReader createPhpScriptFileReader(ScriptFile phpScriptFile)

Create a Reader from a given PHP script file. This procedure can be used to create a reader from a cached script Example:

private static File script;
private static final File getScript() {
if (script!=null) return script;
return EngineFactory.getPhpScript(ctx.getRealPath(req.getServletPath(),new StringReader("<?php phpinfo();?>"));
}
...
FileReader reader = EngineFactory.createPhpScriptFileReader(getScript());
scriptEngine.eval (reader);
reader.close();
...


Parameters:

phpScriptFile - the file containing the cached script, obtained from getPhpScript(String, Reader) or getPhpScript(String)

Returns:

A pointer to the cached PHP script, usually named: path+"._cache_.php"

createPhpScriptFileReader

public static java.io.FileReader createPhpScriptFileReader(java.io.File phpScriptFile)

Use createPhpScriptFileReader(ScriptFile) instead

Parameters:

phpScriptFile -

Returns:

A new FileReader

releaseScriptEngines

public void releaseScriptEngines(java.util.List list)

Only for internal use.
Release all managed script engines. Will be called automatically during shutdown,

Parameters:

list - the list of script engines