104 lines
2.5 KiB
Java
104 lines
2.5 KiB
Java
package org.gcube.application.geoportal.common.model.legacy.report;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import lombok.Getter;
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import lombok.Setter;
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@Getter
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@Setter
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public class ConstraintCheck<T> {
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public static <T> ConstraintCheck<T> defaultFor(T toCheck,T defaultValue){
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return new ConstraintCheck<T>(toCheck).withDefault(defaultValue);
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}
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private T theObject;
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private String fieldLabel;
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private String message;
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private boolean error=false;
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private boolean mandatory;
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private T theDefault;
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private List<Check> additionalChecks=new ArrayList<Check>();
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public ConstraintCheck(T theObject,Check...checks){
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this.theObject=theObject;
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for(Check c:checks)
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additionalChecks.add(c);
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check();
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}
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public ConstraintCheck<T> withDefault(T theDefault){
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this.theDefault=theDefault;
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return this;
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}
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public ConstraintCheck<T> addChecks(Check...checks){
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for(Check c:checks)
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additionalChecks.add(c);
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return this;
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}
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public ConstraintCheck(T theObject,String fieldLabel,Check...checks){
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this.theObject=theObject;
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this.fieldLabel=fieldLabel;
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for(Check c:checks)
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additionalChecks.add(c);
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check();
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}
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public T evaluate() {
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check();
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T result=theObject;
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if(isError()) {
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result=theDefault;
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if(theDefault!=null && theDefault instanceof Collection) {
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Collection defaultCollection=(Collection) theDefault;
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ArrayList target=new ArrayList(defaultCollection);
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result=(T) target;
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}
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}
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return result;
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}
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private void check() {
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if(theObject==null) {
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this.setMessage(fieldLabel+" è un campo obbligatorio.");
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this.setError(true);
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}else
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if((theObject instanceof String) && ((String) theObject).isEmpty()) {
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this.setMessage(fieldLabel+" non può essere vuoto.");
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this.setError(true);
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}else
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if((theObject instanceof Collection)) {
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Collection toCheckCollection=(Collection) theObject;
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if(toCheckCollection.isEmpty()) {
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this.setMessage("La lista "+fieldLabel+" non può essere vuota.");
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this.setError(true);
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}
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Boolean containsError=false;
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Object[] array=toCheckCollection.toArray(new Object[toCheckCollection.size()]);
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for(int i=0;i<array.length;i++) {
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containsError=new ConstraintCheck(array[i],fieldLabel+" [elemento N° "+i+"]").isError();
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}
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this.setError(containsError);
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}else {
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for(Check check:additionalChecks) {
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if(!check.isOk(theObject)) {
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this.setError(true);
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this.setMessage(check.getMessage());
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}
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}
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}
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}
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}
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