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/*******************************************************************************
* Copyright (c) 2000, 2008 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.pde.internal.core.feature;
import java.io.PrintWriter;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.PlatformObject;
import org.eclipse.core.runtime.Status;
import org.eclipse.pde.core.IModelChangeProvider;
import org.eclipse.pde.core.ModelChangedEvent;
import org.eclipse.pde.internal.core.PDECore;
import org.eclipse.pde.internal.core.PDECoreMessages;
import org.eclipse.pde.internal.core.ifeature.IFeature;
import org.eclipse.pde.internal.core.ifeature.IFeatureModel;
import org.eclipse.pde.internal.core.ifeature.IFeatureObject;
import org.eclipse.pde.internal.core.util.PDEXMLHelper;
import org.w3c.dom.Node;
public abstract class FeatureObject extends PlatformObject implements IFeatureObject {
private static final long serialVersionUID = 1L;
transient IFeatureModel model;
transient IFeatureObject parent;
protected String label;
boolean inTheModel;
void setInTheModel(boolean value) {
inTheModel = value;
}
@Override
public boolean isInTheModel() {
return inTheModel;
}
protected void ensureModelEditable() throws CoreException {
if (!model.isEditable()) {
throwCoreException(PDECoreMessages.FeatureObject_readOnlyChange);
}
}
protected void firePropertyChanged(String property, Object oldValue, Object newValue) {
firePropertyChanged(this, property, oldValue, newValue);
}
protected void firePropertyChanged(IFeatureObject object, String property, Object oldValue, Object newValue) {
if (model.isEditable()) {
IModelChangeProvider provider = model;
provider.fireModelObjectChanged(object, property, oldValue, newValue);
}
}
protected void fireStructureChanged(IFeatureObject child, int changeType) {
fireStructureChanged(new IFeatureObject[] {child}, changeType);
}
protected void fireStructureChanged(IFeatureObject[] children, int changeType) {
IFeatureModel model = getModel();
if (model.isEditable()) {
IModelChangeProvider provider = model;
provider.fireModelChanged(new ModelChangedEvent(provider, changeType, children, null));
}
}
@Override
public IFeature getFeature() {
return model.getFeature();
}
@Override
public String getLabel() {
return label;
}
@Override
public String getTranslatableLabel() {
if (label == null)
return ""; //$NON-NLS-1$
return model.getResourceString(label);
}
@Override
public IFeatureModel getModel() {
return model;
}
String getNodeAttribute(Node node, String name) {
Node attribute = node.getAttributes().getNamedItem(name);
if (attribute != null)
return attribute.getNodeValue();
return null;
}
int getIntegerAttribute(Node node, String name) {
String value = getNodeAttribute(node, name);
if (value != null) {
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) {
}
}
return 0;
}
boolean getBooleanAttribute(Node node, String name) {
String value = getNodeAttribute(node, name);
if (value != null) {
return value.equalsIgnoreCase("true"); //$NON-NLS-1$
}
return false;
}
protected String getNormalizedText(String source) {
String result = source.replace('\t', ' ');
result = result.trim();
return result;
}
@Override
public IFeatureObject getParent() {
return parent;
}
protected void parse(Node node) {
label = getNodeAttribute(node, "label"); //$NON-NLS-1$
}
protected void reset() {
label = null;
}
@Override
public void setLabel(String newLabel) throws CoreException {
ensureModelEditable();
Object oldValue = this.label;
label = newLabel;
firePropertyChanged(P_LABEL, oldValue, newLabel);
}
protected void throwCoreException(String message) throws CoreException {
Status status = new Status(IStatus.ERROR, PDECore.PLUGIN_ID, IStatus.OK, message, null);
CoreException ce = new CoreException(status);
ce.fillInStackTrace();
throw ce;
}
public void restoreProperty(String name, Object oldValue, Object newValue) throws CoreException {
if (name.equals(P_LABEL)) {
setLabel(newValue != null ? newValue.toString() : null);
}
}
@Override
public void write(String indent, PrintWriter writer) {
}
public void setModel(IFeatureModel model) {
this.model = model;
}
public void setParent(IFeatureObject parent) {
this.parent = parent;
}
protected String getWritableString(String source) {
return PDEXMLHelper.getWritableString(source);
}
}
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