com.trenako.format.IntegerAnnotationFormatterFactory.java Source code

Introduction

Here is the source code for com.trenako.format.IntegerAnnotationFormatterFactory.java

Source

/*
 * Copyright 2012 the original author or authors.
 * 
 * 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 com.trenako.format;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

import org.springframework.context.EmbeddedValueResolverAware;
import org.springframework.format.AnnotationFormatterFactory;
import org.springframework.format.Formatter;
import org.springframework.format.Parser;
import org.springframework.format.Printer;
import org.springframework.format.number.NumberFormatter;
import org.springframework.util.StringValueResolver;

import com.trenako.format.annotations.IntegerFormat;

/**
 * @author Carlo Micieli
 */
public class IntegerAnnotationFormatterFactory
        implements AnnotationFormatterFactory<IntegerFormat>, EmbeddedValueResolverAware {

    private StringValueResolver resolver;

    @SuppressWarnings("unchecked")
    private final static Set<Class<?>> TYPES = new HashSet<Class<?>>(Arrays.asList(Integer.class));

    @Override
    public void setEmbeddedValueResolver(StringValueResolver resolver) {
        this.resolver = resolver;
    }

    @Override
    public Set<Class<?>> getFieldTypes() {
        return TYPES;
    }

    @Override
    public Printer<?> getPrinter(IntegerFormat annotation, Class<?> fieldType) {
        return getFormatter(annotation);
    }

    @Override
    public Parser<?> getParser(IntegerFormat annotation, Class<?> fieldType) {
        return getFormatter(annotation);
    }

    private Formatter<Number> getFormatter(IntegerFormat annotation) {
        String pattern = annotation.pattern();
        if (pattern != null && !pattern.isEmpty()) {
            return new NumberFormatter(resolveEmbeddedValue(pattern));
        } else {
            switch (annotation.style()) {
            case SCALE_GAUGE:
                return new GaugeFormatter();
            case CURRENCY:
                return new CurrencyFormatter();
            case SCALE_RATIO:
                return new RatioFormatter();
            default:
                return new NumberFormatter();
            }
        }
    }

    protected String resolveEmbeddedValue(String value) {
        return (resolver != null ? resolver.resolveStringValue(value) : value);
    }

}