com.nabla.wapp.shared.model.ValidationException.java Source code

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Here is the source code for com.nabla.wapp.shared.model.ValidationException.java

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/**
* Copyright 2012 nabla
*
* 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.nabla.wapp.shared.model;

import java.util.HashMap;
import java.util.Map;

import com.google.gwt.i18n.client.ConstantsWithLookup;
import com.nabla.wapp.shared.dispatch.ActionException;
import com.nabla.wapp.shared.dispatch.DispatchException;

public class ValidationException extends ActionException implements IErrorList<Void> {

    private static final long serialVersionUID = 1L;
    public static final String ERROR_CODE = "VALIDATION_ERROR";

    private Map<String, String> errors = new HashMap<String, String>(); // field, errorNo

    public ValidationException() {
        super(ERROR_CODE);
    }

    public ValidationException(final String field, final String error) {
        super(ERROR_CODE);
        add(field, error);
    }

    public <E extends Enum<E>> ValidationException(final String field, final E error) {
        super(ERROR_CODE);
        add(field, error);
    }

    @Override
    public boolean isEmpty() {
        return errors.isEmpty();
    }

    @Override
    public int size() {
        return errors.size();
    }

    @Override
    public void add(@SuppressWarnings("unused") Void position, final String field, final String error)
            throws DispatchException {
        add(field, error);
    }

    @Override
    public void add(final String field, final String error) {
        errors.put(field, error);
    }

    @Override
    public void add(@SuppressWarnings("unused") Void position, String error) throws DispatchException {
        add(error);
    }

    @Override
    public void add(final String error) {
        add("n/a", error);
    }

    @Override
    public <E extends Enum<E>> void add(@SuppressWarnings("unused") Void position, final String field,
            final E error) {
        add(field, error);
    }

    @Override
    public <E extends Enum<E>> void add(final String field, final E error) {
        add(field, error.toString());
    }

    @Override
    public <E extends Enum<E>> void add(@SuppressWarnings("unused") Void position, final E error) {
        add(error);
    }

    @Override
    public <E extends Enum<E>> void add(final E error) {
        add(error.toString());
    }

    public Map<String, String> getErrors() {
        return errors;
    }

    public String getError(final String field) {
        return errors.get(field);
    }

    public Map.Entry<String, String> getError() {
        if (errors.isEmpty())
            return null;
        return errors.entrySet().iterator().next();
    }

    public Map<String, String> getErrorMessages(final ConstantsWithLookup resource) {
        final Map<String, String> ret = new HashMap<String, String>();
        for (final Map.Entry<String, String> e : errors.entrySet())
            ret.put(e.getKey(), resource.getString(e.getValue()));
        return ret;
    }

}