/*******************************************************************************
* 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.core.internal.resources;
import java.util.*;
import org.eclipse.core.internal.localstore.IHistoryStore;
import org.eclipse.core.internal.utils.*;
import org.eclipse.core.internal.watson.*;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.*;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.osgi.util.NLS;
public abstract class Container extends Resource implements IContainer {
protected Container(IPath path, Workspace container) {
super(path, container);
}
/**
* Converts this resource and all its children into phantoms by modifying
* their resource infos in-place.
*/
public void convertToPhantom() throws CoreException {
if (isPhantom())
return;
super.convertToPhantom();
IResource[] members = members(IContainer.INCLUDE_PHANTOMS | IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS);
for (int i = 0; i < members.length; i++)
((Resource) members[i]).convertToPhantom();
}
/* (non-Javadoc)
* @see IContainer#exists(IPath)
*/
public boolean exists(IPath childPath) {
return workspace.getResourceInfo(getFullPath().append(childPath), false, false) != null;
}
/* (non-Javadoc)
* @see IContainer#findMember(String)
*/
public IResource findMember(String name) {
return findMember(name, false);
}
/* (non-Javadoc)
* @see IContainer#findMember(String, boolean)
*/
public IResource findMember(String name, boolean phantom) {
IPath childPath = getFullPath().append(name);
ResourceInfo info = workspace.getResourceInfo(childPath, phantom, false);
return info == null ? null : workspace.newResource(childPath, info.getType());
}
/* (non-Javadoc)
* @see IContainer#findMember(IPath)
*/
public IResource findMember(IPath childPath) {
return findMember(childPath, false);
}
/* (non-Javadoc)
* @see IContainer#findMember(IPath)
*/
public IResource findMember(IPath childPath, boolean phantom) {
childPath = getFullPath().append(childPath);
ResourceInfo info = workspace.getResourceInfo(childPath, phantom, false);
return (info == null) ? null : workspace.newResource(childPath, info.getType());
}
protected void fixupAfterMoveSource() throws CoreException {
super.fixupAfterMoveSource();
if (!synchronizing(getResourceInfo(true, false)))
return;
IResource[] members = members(IContainer.INCLUDE_PHANTOMS | IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS);
for (int i = 0; i < members.length; i++)
((Resource) members[i]).fixupAfterMoveSource();
}
protected IResource[] getChildren(int memberFlags) {
IPath[] children = null;
try {
children = workspace.tree.getChildren(path);
} catch (IllegalArgumentException e) {
//concurrency problem: the container has been deleted by another
//thread during this call. Just return empty children set
}
if (children == null || children.length == 0)
return ICoreConstants.EMPTY_RESOURCE_ARRAY;
Resource[] result = new Resource[children.length];
int found = 0;
for (int i = 0; i < children.length; i++) {
ResourceInfo info = workspace.getResourceInfo(children[i], true, false);
if (info != null && isMember(info.getFlags(), memberFlags))
result[found++] = workspace.newResource(children[i], info.getType());
}
if (found == result.length)
return result;
Resource[] trimmedResult = new Resource[found];
System.arraycopy(result, 0, trimmedResult, 0, found);
return trimmedResult;
}
/* (non-Javadoc)
* @see IFolder#getFile(String) and IProject#getFile(String)
*/
public IFile getFile(String name) {
return (IFile) workspace.newResource(getFullPath().append(name), FILE);
}
/* (non-Javadoc)
* @see IContainer#getFile(IPath)
*/
public IFile getFile(IPath childPath) {
return (IFile) workspace.newResource(getFullPath().append(childPath), FILE);
}
/* (non-Javadoc)
* @see IFolder#getFolder(String) and IProject#getFolder(String)
*/
public IFolder getFolder(String name) {
return (IFolder) workspace.newResource(getFullPath().append(name), FOLDER);
}
/* (non-Javadoc)
* @see IContainer#getFolder(IPath)
*/
public IFolder getFolder(IPath childPath) {
return (IFolder) workspace.newResource(getFullPath().append(childPath), FOLDER);
}
/**
* @deprecated
*/
public boolean isLocal(int flags, int depth) {
if (!super.isLocal(flags, depth))
return false;
if (depth == DEPTH_ZERO)
return true;
if (depth == DEPTH_ONE)
depth = DEPTH_ZERO;
// get the children via the workspace since we know that this
// resource exists (it is local).
IResource[] children = getChildren(IResource.NONE);
for (int i = 0; i < children.length; i++)
if (!children[i].isLocal(depth))
return false;
return true;
}
/* (non-Javadoc)
* @see IContainer#members()
*/
public IResource[] members() throws CoreException {
// forward to central method
return members(IResource.NONE);
}
/* (non-Javadoc)
* @see IContainer#members(boolean)
*/
public IResource[] members(boolean phantom) throws CoreException {
// forward to central method
return members(phantom ? INCLUDE_PHANTOMS : IResource.NONE);
}
/* (non-Javadoc)
* @see IContainer#members(int)
*/
public IResource[] members(int memberFlags) throws CoreException {
final boolean phantom = (memberFlags & INCLUDE_PHANTOMS) != 0;
ResourceInfo info = getResourceInfo(phantom, false);
checkAccessible(getFlags(info));
//if children are currently unknown, ask for immediate refresh
if (info.isSet(ICoreConstants.M_CHILDREN_UNKNOWN))
workspace.refreshManager.refresh(this);
return getChildren(memberFlags);
}
/* (non-Javadoc)
* @see IContainer#getDefaultCharset()
*/
public String getDefaultCharset() throws CoreException {
return getDefaultCharset(true);
}
/* (non-Javadoc)
* @see IContainer#findDeletedMembersWithHistory(int, IProgressMonitor)
*/
public IFile[] findDeletedMembersWithHistory(int depth, IProgressMonitor monitor) {
IHistoryStore historyStore = getLocalManager().getHistoryStore();
IPath basePath = getFullPath();
IWorkspaceRoot root = getWorkspace().getRoot();
Set deletedFiles = new HashSet();
if (depth == IResource.DEPTH_ZERO) {
// this folder might have been a file in a past life
if (historyStore.getStates(basePath, monitor).length > 0) {
IFile file = root.getFile(basePath);
if (!file.exists()) {
deletedFiles.add(file);
}
}
} else {
Set allFilePaths = historyStore.allFiles(basePath, depth, monitor);
// convert IPaths to IFiles keeping only files that no longer exist
for (Iterator it = allFilePaths.iterator(); it.hasNext();) {
IPath filePath = (IPath) it.next();
IFile file = root.getFile(filePath);
if (!file.exists()) {
deletedFiles.add(file);
}
}
}
return (IFile[]) deletedFiles.toArray(new IFile[deletedFiles.size()]);
}
/** (non-Javadoc)
* @see IContainer#setDefaultCharset(String)
* @deprecated Replaced by {@link #setDefaultCharset(String, IProgressMonitor)} which
* is a workspace operation and reports changes in resource deltas.
*/
public void setDefaultCharset(String charset) throws CoreException {
ResourceInfo info = getResourceInfo(false, false);
checkAccessible(getFlags(info));
workspace.getCharsetManager().setCharsetFor(getFullPath(), charset);
}
/* (non-Javadoc)
* @see IContainer#setDefaultCharset(String, IProgressMonitor)
*/
public void setDefaultCharset(String newCharset, IProgressMonitor monitor) throws CoreException {
monitor = Policy.monitorFor(monitor);
try {
String message = NLS.bind(Messages.resources_settingDefaultCharsetContainer, getFullPath());
monitor.beginTask(message, Policy.totalWork);
// need to get the project as a scheduling rule because we might be
// creating a new folder/file to hold the project settings
final ISchedulingRule rule = workspace.getRuleFactory().charsetRule(this);
try {
workspace.prepareOperation(rule, monitor);
checkAccessible(getFlags(getResourceInfo(false, false)));
workspace.beginOperation(true);
workspace.getCharsetManager().setCharsetFor(getFullPath(), newCharset);
// now propagate the changes to all children inheriting their setting from this container
IElementContentVisitor visitor = new IElementContentVisitor() {
boolean visitedRoot = false;
public boolean visitElement(ElementTree tree, IPathRequestor requestor, Object elementContents) {
if (elementContents == null)
return false;
IPath nodePath = requestor.requestPath();
// we will always generate an event at least for the root of the sub tree
// (skip visiting the root because we already have set the charset above and
// that is the condition we are checking later)
if (!visitedRoot) {
visitedRoot = true;
ResourceInfo info = workspace.getResourceInfo(nodePath, false, true);
if (info == null)
return false;
info.incrementCharsetGenerationCount();
return true;
}
// does it already have an encoding explicitly set?
if (workspace.getCharsetManager().getCharsetFor(nodePath, false) != null)
return false;
ResourceInfo info = workspace.getResourceInfo(nodePath, false, true);
if (info == null)
return false;
info.incrementCharsetGenerationCount();
return true;
}
};
try {
new ElementTreeIterator(workspace.getElementTree(), getFullPath()).iterate(visitor);
} catch (WrappedRuntimeException e) {
throw (CoreException) e.getTargetException();
}
monitor.worked(Policy.opWork);
} catch (OperationCanceledException e) {
workspace.getWorkManager().operationCanceled();
throw e;
} finally {
workspace.endOperation(rule, true, Policy.subMonitorFor(monitor, Policy.endOpWork));
}
} finally {
monitor.done();
}
}
}