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A library that extends FreeMarker with support for the Java Date/Time API

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/*
 * Copyright (c) 2015-2024 Jakob Vad Nielsen
 *
 * Licensed 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 no.api.freemarker.java8.time;

import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModelException;

import java.time.LocalTime;
import java.util.List;

import static no.api.freemarker.java8.time.DateTimeTools.*;

public class LocalTimeChecker extends AbstractChecker implements TemplateMethodModelEx {
    private final String method;

    public LocalTimeChecker(LocalTime obj, String method) {
        super(obj);
        this.method = method;
    }

    @SuppressWarnings("DuplicatedCode")
    @Override
    public Object exec(List list) throws TemplateModelException {
        AbstractAdapter adapter = (AbstractAdapter) list.get(0);
        Object object = adapter.getObject();
        if (object instanceof LocalTime) {
            LocalTime other = (LocalTime) object;
            switch (method) {
                case METHOD_EQUALS:
                    return getObject().equals(other);
                case METHOD_AFTER:
                    return getObject().isAfter(other);
                case METHOD_BEFORE:
                    return getObject().isBefore(other);
            }
            throw new TemplateModelException("method not implemented");
        } else {
            throw new TemplateModelException("Invalid operand type for " + method + ": " + object);
        }
    }
}