package org.ovirt.engine.ui.webadmin.binding;
/**
* Represents a Java statement that sets the generated DOM element ID into the corresponding field.
*/
public class ElementIdStatement {
private final String fieldExpression;
private final String elementId;
public ElementIdStatement(String fieldExpression, String elementId) {
this.fieldExpression = fieldExpression;
this.elementId = elementId;
}
public String buildIdSetterStatement() {
return String.format("setElementId(%s, \"%s\")", fieldExpression, elementId);
}
public String buildGuardCondition() {
StringBuilder sb = new StringBuilder();
String[] subPaths = getSubPaths(fieldExpression);
for (int i = 0; i < subPaths.length; i++) {
sb.append(subPaths[i]).append(" != null");
if (i < subPaths.length - 1) {
sb.append(" && ");
}
}
return sb.toString();
}
String[] getSubPaths(String path) {
String[] pathElements = path.split("\\.");
String[] result = new String[pathElements.length];
for (int i = 0; i < pathElements.length; i++) {
String currentElement = pathElements[i];
if (currentElement.isEmpty()) {
throw new IllegalStateException("Malformed path: " + path);
}
if (i == 0) {
result[i] = currentElement;
} else {
result[i] = result[i - 1] + "." + currentElement;
}
}
return result;
}
@Override
public String toString() {
return elementId;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((elementId == null) ? 0 : elementId.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ElementIdStatement other = (ElementIdStatement) obj;
if (elementId == null) {
if (other.elementId != null)
return false;
} else if (!elementId.equals(other.elementId))
return false;
return true;
}
}