fixing a recursive loop in the sourcelocator

1 files changed, 7 insertions, 232 deletions

diff --git a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/sourcelookup/CSourceLocator.java b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/sourcelookup/CSourceLocator.java
index 555ce838c38..281cbc456f9 100644
--- a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/sourcelookup/CSourceLocator.java
+++ b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/sourcelookup/CSourceLocator.java
@@ -6,42 +6,21 @@
 
 package org.eclipse.cdt.debug.internal.core.sourcelookup;
 
-import java.io.IOException;
-import java.io.StringReader;
-import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-
-import org.apache.xerces.dom.DocumentImpl;
 import org.eclipse.cdt.core.resources.FileStorage;
-import org.eclipse.cdt.debug.core.CDebugCorePlugin;
-import org.eclipse.cdt.debug.core.ICDTLaunchConfigurationConstants;
 import org.eclipse.cdt.debug.core.model.IStackFrameInfo;
 import org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocation;
 import org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocator;
-import org.eclipse.cdt.debug.internal.core.CDebugUtils;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.debug.core.ILaunchConfiguration;
-import org.eclipse.debug.core.model.IPersistableSourceLocator;
 import org.eclipse.debug.core.model.IStackFrame;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
 
 /**
  * 
@@ -49,14 +28,8 @@ import org.xml.sax.SAXException;
  * 
  * @since Aug 19, 2002
  */
-
-public class CSourceLocator implements ICSourceLocator, IPersistableSourceLocator
+public class CSourceLocator implements ICSourceLocator
 {
-	private static final String ELEMENT_NAME = "cSourceLocator";
-	private static final String CHILD_NAME = "cSourceLocation";
-	private static final String ATTR_CLASS = "class";
-	private static final String ATTR_MEMENTO = "memento";
-
 	/**
 	 * The array of source locations associated with this locator.
 	 */
@@ -198,7 +171,7 @@ public class CSourceLocator implements ICSourceLocator, IPersistableSourceLocato
 	public static ICSourceLocation[] getDefaultSourceLocations( IProject project )
 	{
 		ArrayList list = new ArrayList();
-		if ( project != null && project.exists() )
+		if ( project != null )
 		{
 			list.add( new CProjectSourceLocation( project ) );
 			addReferencedSourceLocations( list, project );
@@ -228,8 +201,8 @@ public class CSourceLocator implements ICSourceLocator, IPersistableSourceLocato
 			}
 		}
 	}
- 	
- 	private static boolean containsProject( List list, IProject project )
+	
+	private static boolean containsProject( List list, IProject project )
  	{
 		Iterator it = list.iterator();
 		while( it.hasNext() )
@@ -239,8 +212,8 @@ public class CSourceLocator implements ICSourceLocator, IPersistableSourceLocato
 				return true;
 		}
 		return false;
- 	}
-
+ 	}	
+ 	
 	private Object findFileByAbsolutePath( String fileName )
 	{
 		Path path = new Path( fileName );
@@ -255,203 +228,5 @@ public class CSourceLocator implements ICSourceLocator, IPersistableSourceLocato
 			return new FileStorage( path );
 		}
 		return null;
-	}
-
-	/* (non-Javadoc)
-	 * @see org.eclipse.cdt.debug.core.sourcelookup.ICSourceLocator#findSourceElement(String)
-	 */
-	public Object findSourceElement( String fileName )
-	{
-		Object result = null;
-		if ( fileName != null && fileName.length() > 0 )
-		{
-			result = findFileByAbsolutePath( fileName );
-			if ( result == null )
-			{
-				ICSourceLocation[] locations = getSourceLocations();
-				for ( int i = 0; i < locations.length; ++i )
-				{
-					try
-					{
-						result = locations[i].findSourceElement( fileName );
-					}
-					catch( CoreException e )
-					{
-						// do nothing
-					}
-					if ( result != null )
-						break;
-				}
-			}
-		}
-		return result;
-	}
-
-	/* (non-Javadoc)
-	 * @see org.eclipse.debug.core.model.IPersistableSourceLocator#getMemento()
-	 */
-	public String getMemento() throws CoreException
-	{
-		Document doc = new DocumentImpl();
-		Element node = doc.createElement( ELEMENT_NAME );
-		doc.appendChild( node );
-
-		ICSourceLocation[] locations = getSourceLocations();
-		for ( int i = 0; i < locations.length; i++ )
-		{
-			Element child = doc.createElement( CHILD_NAME );
-			child.setAttribute( ATTR_CLASS, locations[i].getClass().getName() );
-			child.setAttribute( ATTR_MEMENTO, locations[i].getMemento() );
-			node.appendChild( child );
-		}
-		try
-		{
-			return CDebugUtils.serializeDocument( doc, " " );
-		}
-		catch( IOException e )
-		{
-			abort( "Unable to create memento for C/C++ source locator.", e );
-		}
-		// execution will not reach here
-		return null;
-	}
-
-	/* (non-Javadoc)
-	 * @see org.eclipse.debug.core.model.IPersistableSourceLocator#initializeDefaults(org.eclipse.debug.core.ILaunchConfiguration)
-	 */
-	public void initializeDefaults( ILaunchConfiguration configuration ) throws CoreException
-	{
-		IProject project = getProject( configuration );
-		if ( project != null )
-		{
-			setSourceLocations( getDefaultSourceLocations( project ) );
-		}
-		else
-		{
-			setSourceLocations( new ICSourceLocation[0] );
-		}
-	}
-
-	/* (non-Javadoc)
-	 * @see org.eclipse.debug.core.model.IPersistableSourceLocator#initializeFromMemento(java.lang.String)
-	 */
-	public void initializeFromMemento( String memento ) throws CoreException
-	{
-		Exception ex = null;
-		try
-		{
-			Element root = null;
-			DocumentBuilder parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
-			StringReader reader = new StringReader( memento );
-			InputSource source = new InputSource( reader );
-			root = parser.parse( source ).getDocumentElement();
-
-			if ( !root.getNodeName().equalsIgnoreCase( ELEMENT_NAME ) )
-			{
-				abort( "Unable to restore C/C++ source locator - invalid format.", null );
-			}
-
-			List sourceLocations = new ArrayList();
-			ClassLoader classLoader = CDebugCorePlugin.getDefault() .getDescriptor().getPluginClassLoader();
-
-			NodeList list = root.getChildNodes();
-			int length = list.getLength();
-			for ( int i = 0; i < length; ++i )
-			{
-				Node node = list.item( i );
-				short type = node.getNodeType();
-				if ( type == Node.ELEMENT_NODE )
-				{
-					Element entry = (Element)node;
-					if ( entry.getNodeName().equalsIgnoreCase( CHILD_NAME ) )
-					{
-						String className = entry.getAttribute( ATTR_CLASS );
-						String data = entry.getAttribute( ATTR_MEMENTO );
-						if ( isEmpty( className ) )
-						{
-							abort( "Unable to restore C/C++ source locator - invalid format.", null );
-						}
-						Class clazz = null;
-						try
-						{
-							clazz = classLoader.loadClass( className );
-						}
-						catch( ClassNotFoundException e )
-						{
-							abort( MessageFormat.format( "Unable to restore source location - class not found {0}", new String[] { className } ), e );
-						}
-
-						ICSourceLocation location = null;
-						try
-						{
-							location = (ICSourceLocation)clazz.newInstance();
-						}
-						catch( IllegalAccessException e )
-						{
-							abort( "Unable to restore source location.", e );
-						}
-						catch( InstantiationException e )
-						{
-							abort( "Unable to restore source location.", e );
-						}
-						location.initializeFrom( data );
-						sourceLocations.add( location );
-					}
-					else
-					{
-						abort( "Unable to restore C/C++ source locator - invalid format.", null );
-					}
-				}
-			}
-			setSourceLocations( (ICSourceLocation[])sourceLocations.toArray( new ICSourceLocation[sourceLocations.size()] ) );
-			return;
-		}
-		catch( ParserConfigurationException e )
-		{
-			ex = e;
-		}
-		catch( SAXException e )
-		{
-			ex = e;
-		}
-		catch( IOException e )
-		{
-			ex = e;
-		}
-		abort( "Exception occurred initializing source locator.", ex );
-	}
-
-	/**
-	 * Throws an internal error exception
-	 */
-	private void abort( String message, Throwable e ) throws CoreException
-	{
-		IStatus s = new Status( IStatus.ERROR,
-								CDebugCorePlugin.getUniqueIdentifier(),
-								CDebugCorePlugin.INTERNAL_ERROR,
-								message,
-								e );
-		throw new CoreException( s );
-	}
-
-
-	private boolean isEmpty( String string )
-	{
-		return string == null || string.length() == 0;
-	}
-	
-	private IProject getProject( ILaunchConfiguration configuration )
-	{
-		IProject project = null;
-		try
-		{
-			String projectName = configuration.getAttribute( ICDTLaunchConfigurationConstants.ATTR_PROJECT_NAME, "" );
-			if ( !isEmpty( projectName ) )
-				project = ResourcesPlugin.getWorkspace().getRoot().getProject( projectName );
-		}
-		catch( CoreException e )
-		{
-		}
-		return project;
-	}
+	} 	
 }