| /* |
| * 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 freemarker.template; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import freemarker.template.TemplateHashModelEx2.KeyValuePair; |
| import freemarker.template.TemplateHashModelEx2.KeyValuePairIterator; |
| |
| /** |
| * Implementation of {@link KeyValuePairIterator} for a {@link TemplateHashModelEx2} that wraps or otherwise uses a |
| * {@link Map} internally. |
| * |
| * @since 2.3.25 |
| */ |
| public class MapKeyValuePairIterator implements KeyValuePairIterator { |
| |
| private final Iterator<Entry<?, ?>> entrySetIterator; |
| |
| private final ObjectWrapper objectWrapper; |
| |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| public <K, V> MapKeyValuePairIterator(Map<?, ?> map, ObjectWrapper objectWrapper) { |
| entrySetIterator = ((Map) map).entrySet().iterator(); |
| this.objectWrapper = objectWrapper; |
| } |
| |
| public boolean hasNext() { |
| return entrySetIterator.hasNext(); |
| } |
| |
| public KeyValuePair next() { |
| final Entry<?, ?> entry = entrySetIterator.next(); |
| return new KeyValuePair() { |
| |
| public TemplateModel getKey() throws TemplateModelException { |
| return wrap(entry.getKey()); |
| } |
| |
| public TemplateModel getValue() throws TemplateModelException { |
| return wrap(entry.getValue()); |
| } |
| |
| }; |
| } |
| |
| private TemplateModel wrap(Object obj) throws TemplateModelException { |
| return (obj instanceof TemplateModel) ? (TemplateModel) obj : objectWrapper.wrap(obj); |
| } |
| |
| } |