bindings = verifySlingBindings(props);
// use final variable for inner class!
final Bindings b = bindings;
// create script context
final ScriptContext ctx = new ScriptContext() {
private Bindings globalScope;
private Bindings engineScope = b;
private Writer writer = (Writer) b.get(OUT);
private Writer errorWriter = new LogWriter((Logger) b.get(LOG));
private Reader reader = (Reader)b.get(READER);
private Bindings slingScope = new SimpleBindings();
/**
* @see javax.script.ScriptContext#setBindings(javax.script.Bindings, int)
*/
public void setBindings(final Bindings bindings, final int scope) {
switch (scope) {
case SlingScriptConstants.SLING_SCOPE : this.slingScope = bindings;
break;
case 100: if (bindings == null) throw new NullPointerException("Bindings for ENGINE scope is null");
this.engineScope = bindings;
break;
case 200: this.globalScope = bindings;
break;
default: throw new IllegalArgumentException("Invaild scope");
}
}
/**
* @see javax.script.ScriptContext#getBindings(int)
*/
public Bindings getBindings(final int scope) {
switch (scope) {
case SlingScriptConstants.SLING_SCOPE : return slingScope;
case 100: return this.engineScope;
case 200: return this.globalScope;
}
throw new IllegalArgumentException("Invaild scope");
}
/**
* @see javax.script.ScriptContext#setAttribute(java.lang.String, java.lang.Object, int)
*/
public void setAttribute(final String name, final Object value, final int scope) {
if (name == null) throw new IllegalArgumentException("Name is null");
final Bindings bindings = getBindings(scope);
if (bindings != null) {
bindings.put(name, value);
}
}
/**
* @see javax.script.ScriptContext#getAttribute(java.lang.String, int)
*/
public Object getAttribute(final String name, final int scope) {
if (name == null) throw new IllegalArgumentException("Name is null");
final Bindings bindings = getBindings(scope);
if (bindings != null) {
return bindings.get(name);
}
return null;
}
/**
* @see javax.script.ScriptContext#removeAttribute(java.lang.String, int)
*/
public Object removeAttribute(final String name, final int scope) {
if (name == null) throw new IllegalArgumentException("Name is null");
final Bindings bindings = getBindings(scope);
if (bindings != null) {
return bindings.remove(name);
}
return null;
}
/**
* @see javax.script.ScriptContext#getAttribute(java.lang.String)
*/
public Object getAttribute(String name) {
if (name == null) throw new IllegalArgumentException("Name is null");
for (final int scope : SCOPES) {
final Bindings bindings = getBindings(scope);
if ( bindings != null ) {
final Object o = bindings.get(name);
if ( o != null ) {
return o;
}
}
}
return null;
}
/**
* @see javax.script.ScriptContext#getAttributesScope(java.lang.String)
*/
public int getAttributesScope(String name) {
if (name == null) throw new IllegalArgumentException("Name is null");
for (final int scope : SCOPES) {
if ((getBindings(scope) != null) && (getBindings(scope).containsKey(name))) {
return scope;
}
}
return -1;
}
/**
* @see javax.script.ScriptContext#getScopes()
*/
public List<Integer> getScopes() {
return Arrays.asList(SCOPES);
}
/**
* @see javax.script.ScriptContext#getWriter()
*/
public Writer getWriter() {
return this.writer;
}
/**
* @see javax.script.ScriptContext#getErrorWriter()
*/
public Writer getErrorWriter() {
return this.errorWriter;
}
/**
* @see javax.script.ScriptContext#setWriter(java.io.Writer)
*/
public void setWriter(Writer writer) {
this.writer = writer;
}
/**
* @see javax.script.ScriptContext#setErrorWriter(java.io.Writer)
*/
public void setErrorWriter(Writer writer) {
this.errorWriter = writer;
}
/**
* @see javax.script.ScriptContext#getReader()
*/
public Reader getReader() {
return this.reader;
}
/**
* @see javax.script.ScriptContext#setReader(java.io.Reader)
*/
public void setReader(Reader reader) {
this.reader = reader;
}
};
// set the current resource resolver if a request is available from the bindings
if ( props.getRequest() != null ) {
oldResolver = requestResourceResolver.get();
requestResourceResolver.set(props.getRequest().getResourceResolver());
}
// set the script resource resolver as an attribute
ctx.setAttribute(SlingScriptConstants.ATTR_SCRIPT_RESOURCE_RESOLVER,
this.scriptResource.getResourceResolver(), SlingScriptConstants.SLING_SCOPE);
reader = getScriptReader();
if ( method != null && !(this.scriptEngine instanceof Invocable)) {
reader = getWrapperReader(reader, method, args);
}
// evaluate the script
final Object result = scriptEngine.eval(reader, ctx);
// call method - if supplied and script engine supports direct invocation
if ( method != null && (this.scriptEngine instanceof Invocable)) {
try {
((Invocable)scriptEngine).invokeFunction(method, Arrays.asList(args).toArray());
} catch (NoSuchMethodException e) {
throw new ScriptEvaluationException(this.scriptName, "Method " + method + " not found in script.", e);
}
}
// optionall flush the output channel
Object flushObject = bindings.get(FLUSH);
if (flushObject instanceof Boolean && (Boolean) flushObject) {
ctx.getWriter().flush();
}
// allways flush the error channel
ctx.getErrorWriter().flush();
return result;
} catch (IOException ioe) {
throw new ScriptEvaluationException(this.scriptName, ioe.getMessage(),