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package org.eclipse.team.core.sync;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.team.core.TeamException;
/**
* A standard abstract class that provides implementations for <code>ILocalSyncElement</code>
* methods.
*/
public abstract class LocalSyncElement implements ILocalSyncElement {
/**
* Creates a client specific sync element from a <b>local</b> and <b>base</b>
* resources. The <b>base</b> resource may be <code>null</code> and should be
* intialized by the client if available.
*
* @param local the local resource in the workbench. Will never be <code>null</code>.
* @param base the base resource, may me <code>null</code>.
* @param data client specific data.
*
* @return a client specific sync element.
*/
public abstract ILocalSyncElement create(IResource local, IRemoteResource base, Object data);
/**
* Client data that is passed to every <code>create()</code> call.
*
* @return client specific data that will be passed to create.
*/
protected abstract Object getData();
/**
* Client can decide is a specific element should be ignored from this sync element's
* children.
*
* @param resource the resource to be queried.
*
* @return <code>true</code> if this element should be ignored and not considered an
* immediate child of this element, and <code>false</code> otherwise.
*/
protected abstract boolean isIgnored(IResource resource);
/*
* @see ILocalSyncElement#getSyncKind(int, IProgressMonitor)
*/
public int getSyncKind(int granularity, IProgressMonitor progress) {
// XXX not sure how local sync will be used?
int sync = IN_SYNC;
return sync;
}
/*
* @see ILocalSyncElement#getName()
*/
public String getName() {
return getLocal().getName();
}
/*
* @see ILocalSyncElement#isContainer()
*/
public boolean isContainer() {
return getLocal().getType() != IResource.FILE;
}
/*
* @see ILocalSyncElement#members(IProgressMonitor)
*/
public ILocalSyncElement[] members(IProgressMonitor monitor) throws TeamException {
try {
if(getLocal().getType() != IResource.FILE) {
IResource[] members = ((IContainer)getLocal()).members();
List syncElements = new ArrayList(5);
for (int i = 0; i < members.length; i++) {
IResource iResource = members[i];
// the base is initialy set to null, however the concrete subclass should
// initialize the base if one is available.
if(!isIgnored(iResource)) {
syncElements.add(create(iResource, null, getData()));
}
}
return (ILocalSyncElement[]) syncElements.toArray(new ILocalSyncElement[syncElements.size()]);
} else {
return new ILocalSyncElement[0];
}
} catch(CoreException e) {
throw new TeamException(e.getStatus());
}
}
}
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