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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * accompanied this code).
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package org.graalvm.visualvm.lib.jfluid.results.memory;


/**
 * Management of the reverse call graph representation for object allocations call paths.
 *
 * @author Misha Dmitriev
 */
public class MemoryCCTManager {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private PresoObjAllocCCTNode rootNode;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    //  public MemoryCCTManager(MemoryCCTProvider provider, int classId, boolean dontShowZeroLiveObjAllocPaths)
    //      throws ClientUtils.TargetAppOrVMTerminated {
    //    rootNode = provider.createPresentationCCT(classId, dontShowZeroLiveObjAllocPaths);
    //  }
    public MemoryCCTManager(MemoryResultsSnapshot snapshot, int classId, boolean dontShowZeroLiveObjAllocPaths) {
        rootNode = snapshot.createPresentationCCT(classId, dontShowZeroLiveObjAllocPaths);
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    /**
     * @return true if the allocation stack traces are empty (and the getRootNode returns null), false otherwise
     * @see #getRootNode()
     */
    public boolean isEmpty() {
        return rootNode == null;
    }

    /**
     * @return The root noe of allocation stack traces or null if empty.
     * @see #isEmpty()
     */
    public PresoObjAllocCCTNode getRootNode() {
        return rootNode;
    }
}
