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/*******************************************************************************
* Copyright (c) 2000, 2006 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.plugin;
import java.io.PrintWriter;
import java.io.Serializable;
import java.util.Vector;
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.IModel;
import org.eclipse.pde.core.IModelChangeProvider;
import org.eclipse.pde.core.IModelChangedEvent;
import org.eclipse.pde.core.ISourceObject;
import org.eclipse.pde.core.ModelChangedEvent;
import org.eclipse.pde.core.plugin.IPluginBase;
import org.eclipse.pde.core.plugin.IPluginModelBase;
import org.eclipse.pde.core.plugin.IPluginObject;
import org.eclipse.pde.core.plugin.ISharedPluginModel;
import org.eclipse.pde.internal.core.PDECore;
import org.eclipse.pde.internal.core.PDECoreMessages;
import org.eclipse.pde.internal.core.ibundle.IBundlePluginModelProvider;
import org.eclipse.pde.internal.core.util.CoreUtility;
import org.w3c.dom.Comment;
import org.w3c.dom.Node;
public abstract class PluginObject
extends PlatformObject
implements IPluginObject, ISourceObject, Serializable {
protected String fName;
private String fTranslatedName;
private transient IPluginObject fParent;
private transient ISharedPluginModel fModel;
protected int fStartLine = 1;
private boolean fInTheModel;
public PluginObject() {
}
public boolean isValid() {
return true;
}
protected void ensureModelEditable() throws CoreException {
if (!fModel.isEditable()) {
throwCoreException(PDECoreMessages.PluginObject_readOnlyChange);
}
}
public void setInTheModel(boolean value) {
fInTheModel = value;
}
public boolean isInTheModel() {
return fInTheModel;
}
protected void firePropertyChanged(
String property,
Object oldValue,
Object newValue) {
firePropertyChanged(this, property, oldValue, newValue);
}
protected void firePropertyChanged(
IPluginObject object,
String property,
Object oldValue,
Object newValue) {
if (fModel.isEditable()) {
IModelChangeProvider provider = fModel;
provider.fireModelObjectChanged(
object,
property,
oldValue,
newValue);
}
}
protected void fireStructureChanged(IPluginObject child, int changeType) {
IModel model = getModel();
if (model.isEditable() && model instanceof IModelChangeProvider) {
IModelChangedEvent e =
new ModelChangedEvent((IModelChangeProvider)model, changeType, new Object[] { child }, null);
fireModelChanged(e);
}
}
protected void fireModelChanged(IModelChangedEvent e) {
IModel model = getModel();
if (model.isEditable() && model instanceof IModelChangeProvider) {
IModelChangeProvider provider = (IModelChangeProvider) model;
provider.fireModelChanged(e);
}
}
public ISharedPluginModel getModel() {
return fModel;
}
public IPluginModelBase getPluginModel() {
if (fModel instanceof IBundlePluginModelProvider)
return ((IBundlePluginModelProvider)fModel).getBundlePluginModel();
return fModel instanceof IPluginModelBase? (IPluginModelBase)fModel : null;
}
public String getName() {
return fName;
}
public String getTranslatedName() {
if (fTranslatedName != null && !fModel.isEditable())
return fTranslatedName;
if (fTranslatedName == null && fName != null && fModel != null) {
fTranslatedName = fModel.getResourceString(fName);
}
return fTranslatedName;
}
String getNodeAttribute(Node node, String name) {
Node attribute = node.getAttributes().getNamedItem(name);
if (attribute != null)
return attribute.getNodeValue();
return null;
}
public IPluginObject getParent() {
return fParent;
}
public IPluginBase getPluginBase() {
IPluginModelBase pluginModel = getPluginModel();
return pluginModel != null ? pluginModel.getPluginBase() : null;
}
public String getResourceString(String key) {
return fModel.getResourceString(key);
}
static boolean isNotEmpty(String text) {
for (int i = 0; i < text.length(); i++) {
if (Character.isWhitespace(text.charAt(i)) == false)
return true;
}
return false;
}
public void restoreProperty(String name, Object oldValue, Object newValue)
throws CoreException {
if (name.equals(P_NAME)) {
setName(newValue != null ? newValue.toString() : null);
}
}
public void setModel(ISharedPluginModel model) {
this.fModel = model;
fTranslatedName = null;
}
public void setName(String name) throws CoreException {
ensureModelEditable();
String oldValue = this.fName;
this.fName = name;
firePropertyChanged(P_NAME, oldValue, name);
}
public void setParent(IPluginObject parent) {
this.fParent = parent;
}
protected void throwCoreException(String message) throws CoreException {
Status status =
new Status(
IStatus.ERROR,
PDECore.getPluginId(),
IStatus.OK,
message,
null);
CoreException ce = new CoreException(status);
ce.fillInStackTrace();
throw ce;
}
public String toString() {
if (fName != null)
return fName;
return super.toString();
}
public Vector addComments(Node node, Vector result) {
for (Node prev = node.getPreviousSibling();
prev != null;
prev = prev.getPreviousSibling()) {
if (prev.getNodeType() == Node.TEXT_NODE)
continue;
if (prev instanceof Comment) {
String comment = prev.getNodeValue();
if (result == null)
result = new Vector();
result.add(0,comment);
} else
break;
}
return result;
}
void writeComments(PrintWriter writer, Vector source) {
if (source == null)
return;
for (int i = 0; i < source.size(); i++) {
String comment = (String) source.elementAt(i);
writer.println("<!--" + comment + "-->"); //$NON-NLS-1$ //$NON-NLS-2$
}
}
protected boolean stringEqualWithNull(String a, String b) {
return a == null && b == null || a != null && b != null && a.equals(b);
}
public String getWritableString(String source) {
return CoreUtility.getWritableString(source);
}
public int getStartLine() {
return fStartLine;
}
public int getStopLine() {
return fStartLine;
}
}
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