Spring Framework example source code file (EscapedErrors.java)

This example Spring Framework source code file (EscapedErrors.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

cannot, errors, escapederrors, fielderror, fielderror, illegalstateexception, iterator, list, list, object, object, objecterror, string, string, util

The Spring Framework EscapedErrors.java source code

/*
 * Copyright 2002-2006 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 org.springframework.web.bind;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.springframework.validation.Errors;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
import org.springframework.web.util.HtmlUtils;

/**
 * Errors wrapper that adds automatic HTML escaping to the wrapped instance,
 * for convenient usage in HTML views. Can be retrieved easily via
 * RequestContext's <code>getErrors method.
 *
 * <p>Note that BindTag does not use this class to avoid unnecessary
 * creation of ObjectError instances. It just escapes the messages and values
 * that get copied into the respective BindStatus instance.
 *
 * @author Juergen Hoeller
 * @since 01.03.2003
 * @see org.springframework.web.servlet.support.RequestContext#getErrors
 * @see org.springframework.web.servlet.tags.BindTag
 */
public class EscapedErrors implements Errors {

	private final Errors source;


	/**
	 * Create a new EscapedErrors instance for the given source instance.
	 */
	public EscapedErrors(Errors source) {
		if (source == null) {
			throw new IllegalArgumentException("Cannot wrap a null instance");
		}
		this.source = source;
	}

	public Errors getSource() {
		return this.source;
	}


	public String getObjectName() {
		return this.source.getObjectName();
	}

	public void setNestedPath(String nestedPath) {
		this.source.setNestedPath(nestedPath);
	}

	public String getNestedPath() {
		return this.source.getNestedPath();
	}

	public void pushNestedPath(String subPath) {
		this.source.pushNestedPath(subPath);
	}

	public void popNestedPath() throws IllegalStateException {
		this.source.popNestedPath();
	}


	public void reject(String errorCode) {
		this.source.reject(errorCode);
	}

	public void reject(String errorCode, String defaultMessage) {
		this.source.reject(errorCode, defaultMessage);
	}

	public void reject(String errorCode, Object[] errorArgs, String defaultMessage) {
		this.source.reject(errorCode, errorArgs, defaultMessage);
	}

	public void rejectValue(String field, String errorCode) {
		this.source.rejectValue(field, errorCode);
	}

	public void rejectValue(String field, String errorCode, String defaultMessage) {
		this.source.rejectValue(field, errorCode, defaultMessage);
	}

	public void rejectValue(String field, String errorCode, Object[] errorArgs, String defaultMessage) {
		this.source.rejectValue(field, errorCode, errorArgs, defaultMessage);
	}

	public void addAllErrors(Errors errors) {
		this.source.addAllErrors(errors);
	}


	public boolean hasErrors() {
		return this.source.hasErrors();
	}

	public int getErrorCount() {
		return this.source.getErrorCount();
	}

	public List getAllErrors() {
		return escapeObjectErrors(this.source.getAllErrors());
	}

	public boolean hasGlobalErrors() {
		return this.source.hasGlobalErrors();
	}

	public int getGlobalErrorCount() {
		return this.source.getGlobalErrorCount();
	}

	public List getGlobalErrors() {
		return escapeObjectErrors(this.source.getGlobalErrors());
	}

	public ObjectError getGlobalError() {
		return escapeObjectError(this.source.getGlobalError());
	}

	public boolean hasFieldErrors() {
		return this.source.hasFieldErrors();
	}

	public int getFieldErrorCount() {
		return this.source.getFieldErrorCount();
	}

	public List getFieldErrors() {
		return this.source.getFieldErrors();
	}

	public FieldError getFieldError() {
		return this.source.getFieldError();
	}

	public boolean hasFieldErrors(String field) {
		return this.source.hasFieldErrors(field);
	}

	public int getFieldErrorCount(String field) {
		return this.source.getFieldErrorCount(field);
	}

	public List getFieldErrors(String field) {
		return escapeObjectErrors(this.source.getFieldErrors(field));
	}

	public FieldError getFieldError(String field) {
		return (FieldError) escapeObjectError(this.source.getFieldError(field));
	}

	public Object getFieldValue(String field) {
		Object value = this.source.getFieldValue(field);
		return (value instanceof String ? HtmlUtils.htmlEscape((String) value) : value);
	}

	public Class getFieldType(String field) {
		return this.source.getFieldType(field);
	}

	private ObjectError escapeObjectError(ObjectError source) {
		if (source == null) {
			return null;
		}
		if (source instanceof FieldError) {
			FieldError fieldError = (FieldError) source;
			Object value = fieldError.getRejectedValue();
			if (value instanceof String) {
				value = HtmlUtils.htmlEscape((String) value);
			}
			return new FieldError(
					fieldError.getObjectName(), fieldError.getField(), value,
					fieldError.isBindingFailure(), fieldError.getCodes(),
					fieldError.getArguments(), HtmlUtils.htmlEscape(fieldError.getDefaultMessage()));
		}
		return new ObjectError(
				source.getObjectName(), source.getCodes(), source.getArguments(),
				HtmlUtils.htmlEscape(source.getDefaultMessage()));
	}

	private List escapeObjectErrors(List source) {
		List escaped = new ArrayList(source.size());
		for (Iterator it = source.iterator(); it.hasNext();) {
			ObjectError objectError = (ObjectError)it.next();
			escaped.add(escapeObjectError(objectError));
		}
		return escaped;
	}

}