models.base.ViewModel.java Source code

Introduction

Here is the source code for models.base.ViewModel.java

Source

/*
 * Sentilab SARE: a Sentiment Analysis Research Environment
 * Copyright (C) 2013 Sabanci University Sentilab
 * http://sentilab.sabanciuniv.edu
 * 
 * This file is part of SARE.
 * 
 * SARE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *  
 * SARE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SARE. If not, see <http://www.gnu.org/licenses/>.
 */

package models.base;

import org.apache.commons.lang3.StringUtils;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.annotate.*;
import org.codehaus.jackson.node.ObjectNode;

import controllers.factories.ViewModelFactory;
import edu.sabanciuniv.sentilab.core.models.ModelLike;

import play.libs.Json;

@JsonIgnoreProperties(ignoreUnknown = true)
public class ViewModel implements ModelLike {

    public static <T> ViewModel createViewModel(T model) {
        ViewModel viewModel = new ViewModelFactory().setModel(model).create();
        if (viewModel == null) {
            throw new IllegalArgumentException();
        }

        return viewModel;
    }

    public static ViewModel createViewModel(JsonNode json) {
        ViewModel viewModel = new ViewModelFactory().setJson(json).create();
        if (viewModel == null) {
            throw new IllegalArgumentException();
        }

        return viewModel;
    }

    public static <T> ViewModel createViewModelQuietly(T model, ViewModel defaultViewModel) {
        try {
            return createViewModel(model);
        } catch (IllegalArgumentException e) {
            return defaultViewModel;
        }
    }

    public static <T> ViewModel createViewModelQuietly(T model) {
        return createViewModelQuietly(model, new ViewModel());
    }

    public static ViewModel createViewModelQuietly(JsonNode json, ViewModel defaultViewModel) {
        try {
            return createViewModel(json);
        } catch (IllegalArgumentException e) {
            return defaultViewModel;
        }
    }

    public static ViewModel createViewModelQuietly(JsonNode json) {
        return createViewModelQuietly(json, new ViewModel());
    }

    public String type;

    public ViewModel(Object obj) {
        if (obj != null) {
            this.type = obj.getClass().getSimpleName();
        }
    }

    public ViewModel() {
        this(null);
    }

    public JsonNode asJson(Iterable<String> excludedProperties) {
        JsonNode json = Json.toJson(this);
        if (excludedProperties != null && json.isObject()) {
            for (String property : excludedProperties) {
                ((ObjectNode) json).remove(property);
            }
        }
        return json;
    }

    public JsonNode asJson() {
        return this.asJson(null);
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof ViewModel) {
            return StringUtils.equals(this.type, ((ViewModel) obj).type);
        }

        return super.equals(obj);
    }

    @Override
    public int hashCode() {
        return StringUtils.defaultString(this.type).hashCode();
    }
}