org.springframework.beans.support.ResourceEditorRegistrar Maven / Gradle / Ivy
/*
* Copyright 2002-2016 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
*
* https://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.springframework.beans.support;
import java.beans.PropertyEditor;
import java.io.File;
import java.io.InputStream;
import java.io.Reader;
import java.net.URI;
import java.net.URL;
import java.nio.file.Path;
import org.xml.sax.InputSource;
import org.springframework.beans.PropertyEditorRegistrar;
import org.springframework.beans.PropertyEditorRegistry;
import org.springframework.beans.PropertyEditorRegistrySupport;
import org.springframework.beans.propertyeditors.ClassArrayEditor;
import org.springframework.beans.propertyeditors.ClassEditor;
import org.springframework.beans.propertyeditors.FileEditor;
import org.springframework.beans.propertyeditors.InputSourceEditor;
import org.springframework.beans.propertyeditors.InputStreamEditor;
import org.springframework.beans.propertyeditors.PathEditor;
import org.springframework.beans.propertyeditors.ReaderEditor;
import org.springframework.beans.propertyeditors.URIEditor;
import org.springframework.beans.propertyeditors.URLEditor;
import org.springframework.core.env.PropertyResolver;
import org.springframework.core.io.ContextResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceEditor;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.ResourceArrayPropertyEditor;
import org.springframework.core.io.support.ResourcePatternResolver;
/**
* PropertyEditorRegistrar implementation that populates a given
* {@link org.springframework.beans.PropertyEditorRegistry}
* (typically a {@link org.springframework.beans.BeanWrapper} used for bean
* creation within an {@link org.springframework.context.ApplicationContext})
* with resource editors. Used by
* {@link org.springframework.context.support.AbstractApplicationContext}.
*
* @author Juergen Hoeller
* @author Chris Beams
* @since 2.0
*/
public class ResourceEditorRegistrar implements PropertyEditorRegistrar {
private final PropertyResolver propertyResolver;
private final ResourceLoader resourceLoader;
/**
* Create a new ResourceEditorRegistrar for the given {@link ResourceLoader}
* and {@link PropertyResolver}.
* @param resourceLoader the ResourceLoader (or ResourcePatternResolver)
* to create editors for (usually an ApplicationContext)
* @param propertyResolver the PropertyResolver (usually an Environment)
* @see org.springframework.core.env.Environment
* @see org.springframework.core.io.support.ResourcePatternResolver
* @see org.springframework.context.ApplicationContext
*/
public ResourceEditorRegistrar(ResourceLoader resourceLoader, PropertyResolver propertyResolver) {
this.resourceLoader = resourceLoader;
this.propertyResolver = propertyResolver;
}
/**
* Populate the given {@code registry} with the following resource editors:
* ResourceEditor, InputStreamEditor, InputSourceEditor, FileEditor, URLEditor,
* URIEditor, ClassEditor, ClassArrayEditor.
* If this registrar has been configured with a {@link ResourcePatternResolver},
* a ResourceArrayPropertyEditor will be registered as well.
* @see org.springframework.core.io.ResourceEditor
* @see org.springframework.beans.propertyeditors.InputStreamEditor
* @see org.springframework.beans.propertyeditors.InputSourceEditor
* @see org.springframework.beans.propertyeditors.FileEditor
* @see org.springframework.beans.propertyeditors.URLEditor
* @see org.springframework.beans.propertyeditors.URIEditor
* @see org.springframework.beans.propertyeditors.ClassEditor
* @see org.springframework.beans.propertyeditors.ClassArrayEditor
* @see org.springframework.core.io.support.ResourceArrayPropertyEditor
*/
@Override
public void registerCustomEditors(PropertyEditorRegistry registry) {
ResourceEditor baseEditor = new ResourceEditor(this.resourceLoader, this.propertyResolver);
doRegisterEditor(registry, Resource.class, baseEditor);
doRegisterEditor(registry, ContextResource.class, baseEditor);
doRegisterEditor(registry, InputStream.class, new InputStreamEditor(baseEditor));
doRegisterEditor(registry, InputSource.class, new InputSourceEditor(baseEditor));
doRegisterEditor(registry, File.class, new FileEditor(baseEditor));
doRegisterEditor(registry, Path.class, new PathEditor(baseEditor));
doRegisterEditor(registry, Reader.class, new ReaderEditor(baseEditor));
doRegisterEditor(registry, URL.class, new URLEditor(baseEditor));
ClassLoader classLoader = this.resourceLoader.getClassLoader();
doRegisterEditor(registry, URI.class, new URIEditor(classLoader));
doRegisterEditor(registry, Class.class, new ClassEditor(classLoader));
doRegisterEditor(registry, Class[].class, new ClassArrayEditor(classLoader));
if (this.resourceLoader instanceof ResourcePatternResolver) {
doRegisterEditor(registry, Resource[].class,
new ResourceArrayPropertyEditor((ResourcePatternResolver) this.resourceLoader, this.propertyResolver));
}
}
/**
* Override default editor, if possible (since that's what we really mean to do here);
* otherwise register as a custom editor.
*/
private void doRegisterEditor(PropertyEditorRegistry registry, Class requiredType, PropertyEditor editor) {
if (registry instanceof PropertyEditorRegistrySupport) {
((PropertyEditorRegistrySupport) registry).overrideDefaultEditor(requiredType, editor);
}
else {
registry.registerCustomEditor(requiredType, editor);
}
}
}