com.timeline.vpn.web.common.MyFormattingConversionServiceFactoryBean.java Source code

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Here is the source code for com.timeline.vpn.web.common.MyFormattingConversionServiceFactoryBean.java

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/*
 * Copyright 2002-2012 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.timeline.vpn.web.common;

import java.util.Set;

import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.EmbeddedValueResolverAware;
import org.springframework.core.convert.support.ConversionServiceFactory;
import org.springframework.format.AnnotationFormatterFactory;
import org.springframework.format.Formatter;
import org.springframework.format.FormatterRegistrar;
import org.springframework.format.FormatterRegistry;
import org.springframework.format.Parser;
import org.springframework.format.Printer;
import org.springframework.format.support.FormattingConversionService;
import org.springframework.util.StringValueResolver;

/**
 * 
 * @ClassName: MyFormattingConversionServiceFactoryBean
 * @Description: FormattingConversionServiceFactoryBeanprivateget
 * @author gqli
 * @date 2016113 ?9:29:04
 *
 */
public class MyFormattingConversionServiceFactoryBean
        implements FactoryBean<FormattingConversionService>, EmbeddedValueResolverAware, InitializingBean {

    private Set<?> converters;

    private Set<?> formatters;

    private Set<FormatterRegistrar> formatterRegistrars;

    private boolean registerDefaultFormatters = true;

    private StringValueResolver embeddedValueResolver;

    private FormattingConversionService conversionService;

    /**
     * Configure the set of custom converter objects that should be added.
     * @param converters instances of any of the following:
     * {@link org.springframework.core.convert.converter.Converter},
     * {@link org.springframework.core.convert.converter.ConverterFactory},
     * {@link org.springframework.core.convert.converter.GenericConverter}
     */
    public void setConverters(Set<?> converters) {
        this.converters = converters;
    }

    /**
     * Configure the set of custom formatter objects that should be added.
     * @param formatters instances of {@link Formatter} or {@link AnnotationFormatterFactory}
     */
    public void setFormatters(Set<?> formatters) {
        this.formatters = formatters;
    }

    /**
     * <p>Configure the set of FormatterRegistrars to invoke to register
     * Converters and Formatters in addition to those added declaratively
     * via {@link #setConverters(Set)} and {@link #setFormatters(Set)}.
     * <p>FormatterRegistrars are useful when registering multiple related
     * converters and formatters for a formatting category, such as Date
     * formatting. All types related needed to support the formatting
     * category can be registered from one place.
     * <p>FormatterRegistrars can also be used to register Formatters
     * indexed under a specific field type different from its own &lt;T&gt;,
     * or when registering a Formatter from a Printer/Parser pair.
     * @see FormatterRegistry#addFormatterForFieldType(Class, Formatter)
     * @see FormatterRegistry#addFormatterForFieldType(Class, Printer, Parser)
     */
    public void setFormatterRegistrars(Set<FormatterRegistrar> formatterRegistrars) {
        this.formatterRegistrars = formatterRegistrars;
    }

    /**
     * Indicate whether default formatters should be registered or not.
     * <p>By default, built-in formatters are registered. This flag can be used
     * to turn that off and rely on explicitly registered formatters only.
     * @see #setFormatters(Set)
     * @see #setFormatterRegistrars(Set)
     */
    public void setRegisterDefaultFormatters(boolean registerDefaultFormatters) {
        this.registerDefaultFormatters = registerDefaultFormatters;
    }

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

    @Override
    public void afterPropertiesSet() {
        this.conversionService = new MyFormattingConversionService(this.embeddedValueResolver,
                this.registerDefaultFormatters);
        ConversionServiceFactory.registerConverters(this.converters, this.conversionService);
        registerFormatters();
    }

    private void registerFormatters() {
        if (this.formatters != null) {
            for (Object formatter : this.formatters) {
                if (formatter instanceof Formatter<?>) {
                    this.conversionService.addFormatter((Formatter<?>) formatter);
                } else if (formatter instanceof AnnotationFormatterFactory<?>) {
                    this.conversionService
                            .addFormatterForFieldAnnotation((AnnotationFormatterFactory<?>) formatter);
                } else {
                    throw new IllegalArgumentException(
                            "Custom formatters must be implementations of Formatter or AnnotationFormatterFactory");
                }
            }
        }
        if (this.formatterRegistrars != null) {
            for (FormatterRegistrar registrar : this.formatterRegistrars) {
                registrar.registerFormatters(this.conversionService);
            }
        }
        installFormatters(this.conversionService);
    }

    /**
     * Subclasses may override this method to register formatters and/or converters.
     * Starting with Spring 3.1 however the recommended way of doing that is to
     * through FormatterRegistrars.
     * @see #setFormatters(Set)
     * @see #setFormatterRegistrars(Set)
     * @deprecated since Spring 3.1 in favor of {@link #setFormatterRegistrars(Set)}
     */
    @Deprecated
    protected void installFormatters(FormatterRegistry registry) {
    }

    @Override
    public FormattingConversionService getObject() {
        return this.conversionService;
    }

    @Override
    public Class<? extends FormattingConversionService> getObjectType() {
        return FormattingConversionService.class;
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

}