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net.n2oapp.framework.api.metadata.meta.ModelLink Maven / Gradle / Ivy
package net.n2oapp.framework.api.metadata.meta;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Getter;
import lombok.Setter;
import net.n2oapp.framework.api.StringUtils;
import net.n2oapp.framework.api.metadata.ReduxModel;
import net.n2oapp.framework.api.metadata.local.view.widget.util.SubModelQuery;
/**
* Ссылка на модель виджета
*/
@Getter
public class ModelLink extends BindLink {
/**
* Тип модели
*/
private ReduxModel model;
/**
* Клиентский идентификатор источника данных
*/
private String datasource;
/**
* Идентификатор поля
*/
private String fieldId;
/**
* Информация о том, как получить вложенную модель этого поля
*/
@Setter
private SubModelQuery subModelQuery;
/**
* Параметр запроса, содержащий значение
*/
@Setter
private String param;
/**
* Может ли значение параметра (param) или ссылки (value) измениться на текущей странице?
*/
@Setter
@JsonProperty
private boolean observe = false;
/**
* Является ли значение параметра обязательным
*/
@Setter
@JsonProperty
private boolean required = false;
public ModelLink() {
}
public ModelLink(Object value) {
setValue(value);
}
public ModelLink(ModelLink link) {
super(createBindLink(link.model, link.datasource, link.fieldId));
this.model = link.model;
this.datasource = link.datasource;
this.fieldId = link.fieldId;
setValue(link.getValue());
setSubModelQuery(link.getSubModelQuery());
setParam(link.getParam());
setObserve(link.isObserve());
}
public ModelLink(ReduxModel model, String datasource) {
super(createBindLink(model, datasource, null));
this.model = model;
this.datasource = datasource;
}
public ModelLink(ReduxModel model, String datasource, String fieldId) {
super(createBindLink(model, datasource, fieldId));
this.model = model;
this.datasource = datasource;
this.fieldId = fieldId;
}
public String getFieldId() {
String result = null;
String fieldValue = getFieldValue();
if (fieldId != null) result = fieldId;
if (fieldValue != null)
if (result != null) result += "." + fieldValue;
else result = fieldValue;
return result;
}
@Override
public void setValue(Object value) {
super.setValue(value);
if (isConst())
setObserve(false);
}
/**
* Получить поле модели, установленное ссылкой в значении
*
* @return Поле модели или null
*/
public String getFieldValue() {
if (StringUtils.isJs(getValue())) {
String js = getValue().toString().substring(1, getValue().toString().length() - 1);
if (js.contains(".map(function(t){return t."))
return js.substring(0, js.indexOf("."));
else
return js;
}
return null;
}
@JsonIgnore
public ModelLink getWidgetLink() {
if (getModel() == null || getDatasource() == null)
return null;
ModelLink widgetLink = new ModelLink(getModel(), getDatasource());
if (getFieldId() == null || getFieldId().equals("id")) {
widgetLink.setSubModelQuery(getSubModelQuery());
}
return widgetLink;
}
@JsonIgnore
public ModelLink getSubModelLink() {
if (subModelQuery == null) return null;
return new ModelLink(getModel(), getDatasource(), subModelQuery.getSubModel());
}
/**
* Эквивалентны ли ссылки на модели.
*
* @param o Ссылка
* @return true - эквивалентны, false - нет
*/
@Override
public boolean equalsLink(Object o) {
if (o == null || o.getClass() != this.getClass())
return false;
ModelLink that = (ModelLink) o;
if (getModel() == null || getDatasource() == null || that.getModel() == null || that.getDatasource() == null)
return false;
String thisSubModelQueryLink;
String thatSubModelQueryLink;
String thisFieldId = this.getFieldId();
if (this.getSubModelQuery() != null)
thisFieldId = this.getSubModelQuery().getSubModel();
thisSubModelQueryLink = createBindLink(this.getModel(), this.getDatasource(), thisFieldId);
String thatFieldId = that.getFieldId();
if (that.getSubModelQuery() != null)
thatFieldId = that.getSubModelQuery().getSubModel();
thatSubModelQueryLink = createBindLink(that.getModel(), that.getDatasource(), thatFieldId);
if (thisSubModelQueryLink.length() > thatSubModelQueryLink.length())
return compareLinks(this, that, thisSubModelQueryLink, thatSubModelQueryLink);
else if (thisSubModelQueryLink.length() < thatSubModelQueryLink.length())
return compareLinks(that, this, thatSubModelQueryLink, thisSubModelQueryLink);
else
return thisSubModelQueryLink.equals(thatSubModelQueryLink);
}
private boolean compareLinks(ModelLink first, ModelLink second,
String firstSubModelQueryLink, String secondSubModelQueryLink) {
if ((first.getValue() == null && second.getValue() == null) ||
(first.getValue() != null && second.getValue() != null))
return firstSubModelQueryLink.startsWith(secondSubModelQueryLink + ".");
return first.getBindLink().equals(second.getBindLink());
}
private static String createBindLink(ReduxModel model, String widgetId, String fieldId) {
if (model == null)
return null;
return fieldId == null
? String.format("models.%s['%s']", model.getId(), widgetId)
: String.format("models.%s['%s'].%s", model.getId(), widgetId, fieldId);
}
@Override
public boolean equals(Object o) {
return super.equals(o);
}
@Override
public int hashCode() {
return super.hashCode();
}
@Override
public String toString() {
return "ModelLink{" +
super.toString() +
", model=" + model +
", datasource='" + datasource + '\'' +
", fieldId='" + fieldId + '\'' +
'}';
}
}