/**
* Implements the CFML Function arrayavg
*/
package railo.runtime.functions.closure;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import railo.runtime.PageContext;
import railo.runtime.concurrency.UDFCaller;
import railo.runtime.exp.FunctionException;
import railo.runtime.exp.PageException;
import railo.runtime.functions.BIF;
import railo.runtime.op.Caster;
import railo.runtime.type.Array;
import railo.runtime.type.Collection.Key;
import railo.runtime.type.Iteratorable;
import railo.runtime.type.UDF;
public final class Each extends BIF {
private static final long serialVersionUID = 1955185705863596525L;
public static String call(PageContext pc , Object obj, UDF udf) throws PageException {
return _call(pc, obj, udf, false,20);
}
public static String call(PageContext pc , Object obj, UDF udf, boolean parallel) throws PageException {
return _call(pc, obj, udf, parallel, 20);
}
public static String call(PageContext pc , Object obj, UDF udf, boolean parallel, double maxThreads) throws PageException {
return _call(pc, obj, udf, parallel, (int)maxThreads);
}
private static String _call(PageContext pc , Object obj, UDF udf, boolean parallel, int maxThreads) throws PageException {
ExecutorService execute=null;
List<Future<String>> futures=null;
if(parallel) {
execute = Executors.newFixedThreadPool(maxThreads);
futures=new ArrayList<Future<String>>();
}
// Array
if(obj instanceof Array) {
invoke(pc, (Array)obj, udf,execute,futures);
}
// other Iteratorable
else if(obj instanceof Iteratorable) {
invoke(pc, (Iteratorable)obj, udf,execute,futures);
}
// Map
else if(obj instanceof Map) {
Iterator it = ((Map)obj).entrySet().iterator();
Entry e;
while(it.hasNext()){
e = (Entry) it.next();
_call(pc,udf,new Object[]{e.getKey(),e.getValue()},execute,futures);
//udf.call(pc, new Object[]{e.getKey(),e.getValue()}, true);
}
}
//List
else if(obj instanceof List) {
Iterator it = ((List)obj).iterator();
while(it.hasNext()){
_call(pc,udf,new Object[]{it.next()},execute,futures);
//udf.call(pc, new Object[]{it.next()}, true);
}
}
// Iterator
else if(obj instanceof Iterator) {
Iterator it = (Iterator)obj;
while(it.hasNext()){
_call(pc,udf, new Object[]{it.next()},execute,futures);
//udf.call(pc, new Object[]{it.next()}, true);
}
}
// Enumeration
else if(obj instanceof Enumeration) {
Enumeration e = (Enumeration)obj;
while(e.hasMoreElements()){
_call(pc,udf,new Object[]{e.nextElement()},execute,futures);
//udf.call(pc, new Object[]{e.nextElement()}, true);
}
}
else
throw new FunctionException(pc, "Each", 1, "data", "cannot iterate througth this type "+Caster.toTypeName(obj.getClass()));
if(parallel) afterCall(pc,futures);
return null;
}
public static void afterCall(PageContext pc, List<Future<String>> futures) throws PageException {
try{
Iterator<Future<String>> it = futures.iterator();
//Future<String> f;
while(it.hasNext()){
pc.write(it.next().get());
}
}
catch(Exception e){
throw Caster.toPageException(e);
}
}
public static void invoke(PageContext pc , Array array, UDF udf,ExecutorService execute,List<Future<String>> futures) throws PageException {
Iterator<Object> it = array.valueIterator();
while(it.hasNext()){
_call(pc,udf,new Object[]{it.next()},execute,futures);
//udf.call(pc, new Object[]{it.next()}, true);
}
}
public static void invoke(PageContext pc , Iteratorable coll, UDF udf,ExecutorService execute,List<Future<String>> futures) throws PageException {
Iterator<Entry<Key, Object>> it = coll.entryIterator();
Entry<Key, Object> e;
while(it.hasNext()){
e = it.next();
_call(pc,udf,new Object[]{e.getKey().getString(),e.getValue()},execute,futures);
//udf.call(pc, new Object[]{e.getKey().getString(),e.getValue()}, true);
}
}
private static void _call(PageContext pc, UDF udf, Object[] args,ExecutorService es,List<Future<String>> futures) throws PageException {
if(es==null) {
udf.call(pc, args, true);
return;
}
futures.add(es.submit(new UDFCaller(pc, udf, args, true)));
}
@Override
public Object invoke(PageContext pc, Object[] args) throws PageException {
if(args.length==4) return call(pc,args[0],Caster.toFunction(args[1]),Caster.toBooleanValue(args[2]),Caster.toDoubleValue(args[3]));
if(args.length==3) return call(pc,args[0],Caster.toFunction(args[1]),Caster.toBooleanValue(args[2]));
return call(pc,args[0],Caster.toFunction(args[1]));
}
}