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/*******************************************************************************
* Copyright (c) 2000, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.core;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.team.FileModificationValidationContext;
import org.eclipse.core.resources.team.FileModificationValidator;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.osgi.util.NLS;
import org.eclipse.team.core.ITeamStatus;
import org.eclipse.team.core.TeamStatus;
public class DefaultFileModificationValidator extends FileModificationValidator {
/*
* A validator plugged in the the Team UI that will prompt
* the user to make read-only files writable. In the absence of
* this validator, edit/save fail on read-only files.
*/
private FileModificationValidator uiValidator;
protected IStatus getDefaultStatus(IFile file) {
return
file.isReadOnly()
? new TeamStatus(IStatus.ERROR, TeamPlugin.ID, ITeamStatus.READ_ONLY_LOCAL, NLS.bind(Messages.FileModificationValidator_fileIsReadOnly, new String[] { file.getFullPath().toString() }), null, file)
: Status.OK_STATUS;
}
@Override
public IStatus validateEdit(IFile[] files, FileModificationValidationContext context) {
IFile[] readOnlyFiles = getReadOnly(files);
if (readOnlyFiles.length == 0)
return Status.OK_STATUS;
synchronized (this) {
if (uiValidator == null)
uiValidator = loadUIValidator();
}
if (uiValidator != null) {
return uiValidator.validateEdit(files, context);
}
// There was no plugged in validator so fail gracefully
return getStatus(files);
}
protected IStatus getStatus(IFile[] files) {
if (files.length == 1) {
return getDefaultStatus(files[0]);
}
IStatus[] stati = new Status[files.length];
boolean allOK = true;
for (int i = 0; i < files.length; i++) {
stati[i] = getDefaultStatus(files[i]);
if(! stati[i].isOK())
allOK = false;
}
return new MultiStatus(TeamPlugin.ID,
0, stati,
allOK
? Messages.ok
: Messages.FileModificationValidator_someReadOnly,
null);
}
private IFile[] getReadOnly(IFile[] files) {
List<IFile> result = new ArrayList<>(files.length);
for (int i = 0; i < files.length; i++) {
IFile file = files[i];
if (file.isReadOnly()) {
result.add(file);
}
}
return result.toArray(new IFile[result.size()]);
}
@Override
public IStatus validateSave(IFile file) {
if (!file.isReadOnly())
return Status.OK_STATUS;
synchronized (this) {
if (uiValidator == null)
uiValidator = loadUIValidator();
}
if (uiValidator != null) {
return uiValidator.validateSave(file);
}
return getDefaultStatus(file);
}
private FileModificationValidator loadUIValidator() {
IExtensionPoint extension = Platform.getExtensionRegistry().getExtensionPoint(TeamPlugin.ID, TeamPlugin.DEFAULT_FILE_MODIFICATION_VALIDATOR_EXTENSION);
if (extension != null) {
IExtension[] extensions = extension.getExtensions();
if (extensions.length > 0) {
IConfigurationElement[] configElements = extensions[0].getConfigurationElements();
if (configElements.length > 0) {
try {
Object o = configElements[0].createExecutableExtension("class"); //$NON-NLS-1$
if (o instanceof FileModificationValidator) {
return (FileModificationValidator)o;
}
} catch (CoreException e) {
TeamPlugin.log(e);
}
}
}
}
return null;
}
}
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