org.apache.el.stream.StreamELResolverImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.el.stream;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
import jakarta.el.ELContext;
import jakarta.el.ELResolver;
public class StreamELResolverImpl extends ELResolver {
@Override
public Object getValue(ELContext context, Object base, Object property) {
return null;
}
@Override
public Class> getType(ELContext context, Object base, Object property) {
return null;
}
@Override
public void setValue(ELContext context, Object base, Object property, Object value) {
// NO-OP
}
@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
return false;
}
@Override
public Class> getCommonPropertyType(ELContext context, Object base) {
return null;
}
@Override
public Object invoke(ELContext context, Object base, Object method, Class>[] paramTypes, Object[] params) {
if ("stream".equals(method) && params.length == 0) {
if (base.getClass().isArray()) {
context.setPropertyResolved(true);
return new Stream(new ArrayIterator(base));
} else if (base instanceof Collection) {
context.setPropertyResolved(true);
@SuppressWarnings("unchecked")
Collection
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