com.appslandia.plum.base.ModelState Maven / Gradle / Ivy

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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.base;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.function.Function;

import com.appslandia.common.utils.StringUtils;

/**
 *
 * @author Loc Ha
 *
 */
public class ModelState implements Serializable {
	private static final long serialVersionUID = 1L;

	public static final String REQUEST_ATTRIBUTE_ID = "modelState";
	public static final String MODEL_FIELD = StringUtils.EMPTY_STRING;

	private String form;
	final Map> errors = new HashMap<>();

	public void setForm(String form) {
		this.form = form;
	}

	public String getForm() {
		return this.form;
	}

	public void addError(String message) {
		getErrors(MODEL_FIELD).add(message);
	}

	public void addError(String fieldName, String message) {
		getErrors(fieldName).add(message);
	}

	private List getErrors(String fieldName) {
		List errors = this.errors.get(fieldName);
		if (errors == null) {
			errors = new ArrayList<>(4);
			this.errors.put(fieldName, errors);
		}
		return errors;
	}

	public void clearErrors() {
		this.errors.clear();
	}

	public void remove(Function matcher) {
		Iterator it = this.errors.keySet().iterator();
		while (it.hasNext()) {
			if (matcher.apply(it.next())) {
				it.remove();
			}
		}
	}

	public void remove(String... fieldNames) {
		Arrays.stream(fieldNames).forEach(fieldName -> this.errors.remove(fieldName));
	}

	public boolean isValid() {
		return this.errors.isEmpty();
	}

	public boolean isValid(String fieldName) {
		return !this.errors.containsKey(fieldName);
	}

	public boolean areValid(String... fieldNames) {
		return !Arrays.stream(fieldNames).anyMatch(fieldName -> this.errors.containsKey(fieldName));
	}

	public Map> getErrors() {
		return this.errors;
	}
}