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/*******************************************************************************
* Copyright (c) 2000, 2007 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.debug.core.sourcelookup.containers;
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.debug.core.DebugPlugin;
import org.eclipse.debug.core.sourcelookup.AbstractSourceLookupDirector;
import org.eclipse.debug.core.sourcelookup.AbstractSourceLookupParticipant;
import org.eclipse.debug.core.sourcelookup.ISourceContainer;
import org.eclipse.debug.core.sourcelookup.ISourceContainerType;
import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;
import org.eclipse.debug.core.sourcelookup.ISourceLookupParticipant;
/**
* Common function for source containers.
* <p>
* Clients implementing source containers should subclass this class.
* </p>
* @since 3.0
*/
public abstract class AbstractSourceContainer extends PlatformObject implements ISourceContainer {
public static final Object[] EMPTY = new Object[0];
private ISourceLookupDirector fDirector;
/**
* Throws an error exception with the given message and underlying exception.
*
* @param message error message
* @param exception underlying exception, or <code>null</code>
* @throws CoreException
*/
protected void abort(String message, Throwable exception) throws CoreException {
IStatus status = new Status(IStatus.ERROR, DebugPlugin.getUniqueIdentifier(), DebugPlugin.ERROR, message, exception);
throw new CoreException(status);
}
/**
* Throws a warning exception with the given message and underlying exception.
*
* @param message error message
* @param exception underlying exception, or <code>null</code>
* @throws CoreException
* @since 3.3
*/
protected void warn(String message, Throwable exception) throws CoreException {
IStatus status = new Status(IStatus.WARNING, DebugPlugin.getUniqueIdentifier(), DebugPlugin.ERROR, message, exception);
throw new CoreException(status);
}
/* (non-Javadoc)
*
* By default, do nothing. Subclasses should override as required.
*
* @see org.eclipse.debug.core.sourcelookup.ISourceContainer#dispose()
*/
public void dispose() {
fDirector = null;
}
/* (non-Javadoc)
* @see org.eclipse.debug.core.sourcelookup.ISourceContainer#getSourceContainers()
*/
public ISourceContainer[] getSourceContainers() throws CoreException {
return new ISourceContainer[0];
}
/* (non-Javadoc)
* @see org.eclipse.debug.core.sourcelookup.ISourceContainer#isComposite()
*/
public boolean isComposite() {
return false;
}
/* (non-Javadoc)
* @see org.eclipse.debug.core.sourcelookup.ISourceContainer#init(org.eclipse.debug.core.sourcelookup.ISourceLookupDirector)
*/
public void init(ISourceLookupDirector director) {
fDirector = director;
}
/**
* Returns the source lookup director this source container registered
* in, or <code>null</code> if none.
*
* @return the source lookup director this source container registered
* in, or <code>null</code> if none
*/
protected ISourceLookupDirector getDirector() {
return fDirector;
}
/**
* Returns whether this container's source should search for duplicate source
* elements. Since 3.5, the current participant is consulted to determine if
* duplicates should be found. Fall back to querying the source lookup director
* if the participant is not an {@link AbstractSourceLookupParticipant}.
*
* @return whether to search for duplicate source elements
*/
protected boolean isFindDuplicates() {
ISourceLookupDirector director = getDirector();
if (director != null) {
if (director instanceof AbstractSourceLookupDirector) {
AbstractSourceLookupDirector asld = (AbstractSourceLookupDirector) director;
ISourceLookupParticipant participant = asld.getCurrentParticipant();
if (participant instanceof AbstractSourceLookupParticipant ) {
AbstractSourceLookupParticipant aslp = (AbstractSourceLookupParticipant) participant;
return aslp.isFindDuplicates();
}
}
return director.isFindDuplicates();
}
return false;
}
/**
* Returns the source container type identified by the given id,
* or <code>null</code> if none.
*
* @param id source container type identifier
* @return source container type or <code>null</code>
*/
protected ISourceContainerType getSourceContainerType(String id) {
return DebugPlugin.getDefault().getLaunchManager().getSourceContainerType(id);
}
}
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