/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.astview.views;
import java.util.List;
import org.eclipse.swt.graphics.Image;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.StructuralPropertyDescriptor;
public class NodeProperty extends ASTAttribute {
private ASTNode fParent;
private StructuralPropertyDescriptor fProperty;
public NodeProperty(ASTNode parent, StructuralPropertyDescriptor property) {
fParent= parent;
fProperty= property;
}
@Override
public Object getParent() {
return fParent;
}
@Override
public Object[] getChildren() {
Object child= getNode();
if (child instanceof List) {
return ((List<?>) child).toArray();
} else if (child instanceof ASTNode) {
return new Object[] { child };
}
return EMPTY;
}
@Override
public String getLabel() {
StringBuffer buf= new StringBuffer();
buf.append(getPropertyName());
if (fProperty.isSimpleProperty()) {
buf.append(": "); //$NON-NLS-1$
Object node= getNode();
if (node != null) {
buf.append('\'');
buf.append(getNode().toString());
buf.append('\'');
} else {
buf.append("null"); //$NON-NLS-1$
}
} else if (fProperty.isChildListProperty()) {
List<?> node= (List<?>) getNode();
buf.append(" (").append(node.size()).append(')'); //$NON-NLS-1$
} else { // child property
if (getNode() == null) {
buf.append(": null"); //$NON-NLS-1$
}
}
return buf.toString();
}
@Override
public Image getImage() {
return null;
}
public Object getNode() {
return fParent.getStructuralProperty(fProperty);
}
public String getPropertyName() {
return toConstantName(fProperty.getId());
}
private static String toConstantName(String string) {
StringBuffer buf= new StringBuffer();
for (int i= 0; i < string.length(); i++) {
char ch= string.charAt(i);
if (i != 0 && Character.isUpperCase(ch)) {
buf.append('_');
}
buf.append(Character.toUpperCase(ch));
}
return buf.toString();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || !o.getClass().equals(getClass())) {
return false;
}
NodeProperty castedObj= (NodeProperty) o;
return fParent.equals(castedObj.fParent) && (fProperty == castedObj.fProperty);
}
@Override
public int hashCode() {
return fParent.hashCode() * 31 + fProperty.hashCode();
}
@Override
public String toString() {
return getLabel();
}
}