001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
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011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
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016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: * The Original Software is NetBeans. The Initial Developer of the Original
026: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
027: * Microsystems, Inc. All Rights Reserved.
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029: * If you wish your version of this file to be governed by only the CDDL
030: * or only the GPL Version 2, indicate your decision by adding
031: * "[Contributor] elects to include this software in this distribution
032: * under the [CDDL or GPL Version 2] license." If you do not indicate a
033: * single choice of license, a recipient has the option to distribute
034: * your version of this file under either the CDDL, the GPL Version 2 or
035: * to extend the choice of license to its licensees as provided above.
036: * However, if you add GPL Version 2 code and therefore, elected the GPL
037: * Version 2 license, then the option applies only if the new code is
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039: */
040:
041: package org.netbeans.lib.profiler.results.cpu.cct.nodes;
042:
043: import org.netbeans.lib.profiler.results.cpu.cct.*;
044: import java.lang.ref.WeakReference;
045:
046: /**
047: *
048: * @author Jaroslav Bachorik
049: */
050: public abstract class BaseCPUCCTNode implements RuntimeCPUCCTNode {
051: //~ Inner Classes ------------------------------------------------------------------------------------------------------------
052:
053: private static class ArrayChildren implements Children {
054: //~ Instance fields ------------------------------------------------------------------------------------------------------
055:
056: private RuntimeCPUCCTNode[] children;
057:
058: //~ Methods --------------------------------------------------------------------------------------------------------------
059:
060: public RuntimeCPUCCTNode getChildAt(int i) {
061: return (children != null) ? children[i] : null;
062: }
063:
064: public void accept(RuntimeCPUCCTNodeVisitor visitor) {
065: if (children == null) {
066: return;
067: }
068:
069: for (int i = 0; i < children.length; i++) {
070: children[i].accept(visitor);
071: }
072: }
073:
074: public void attachNode(RuntimeCPUCCTNode node) {
075: addChildEntry();
076: children[children.length - 1] = node;
077: }
078:
079: public int size() {
080: return (children != null) ? children.length : 0;
081: }
082:
083: private void addChildEntry() {
084: if (children == null) {
085: children = new RuntimeCPUCCTNode[1];
086: } else {
087: RuntimeCPUCCTNode[] newch = new RuntimeCPUCCTNode[children.length + 1];
088: System
089: .arraycopy(children, 0, newch, 0,
090: children.length);
091: children = newch;
092: }
093: }
094: }
095:
096: //~ Instance fields ----------------------------------------------------------------------------------------------------------
097:
098: private final Children children;
099: private final WeakReference factoryRef;
100:
101: //~ Constructors -------------------------------------------------------------------------------------------------------------
102:
103: /** Creates a new instance of BaseCPUCCTNode */
104: public BaseCPUCCTNode(CPUCCTNodeFactory parentFactory) {
105: if (parentFactory != null) {
106: this .factoryRef = new WeakReference(parentFactory);
107: } else {
108: this .factoryRef = null;
109: }
110:
111: this .children = new ArrayChildren();
112: }
113:
114: //~ Methods ------------------------------------------------------------------------------------------------------------------
115:
116: public synchronized Children getChildren() {
117: return children;
118: }
119:
120: public void attachNodeAsChild(RuntimeCPUCCTNode node) {
121: children.attachNode(node);
122: }
123:
124: protected CPUCCTNodeFactory getFactory() {
125: return (factoryRef != null) ? (CPUCCTNodeFactory) factoryRef
126: .get() : null;
127: }
128: }
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