0N/A/*
2362N/A * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
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0N/A */
0N/A
0N/Apackage sun.tools.jstat;
0N/A
0N/Aimport java.text.*;
0N/Aimport sun.jvmstat.monitor.MonitorException;
0N/A
0N/A/**
0N/A * A class implementing the Closure interface which is used to resolve
0N/A * all the symbols in the expressions contained in ColumnFormat objects.
0N/A *
0N/A * @author Brian Doherty
0N/A * @since 1.5
0N/A */
0N/Apublic class SymbolResolutionClosure implements Closure {
0N/A private static final boolean debug =
0N/A Boolean.getBoolean("SymbolResolutionClosure.debug");
0N/A
0N/A private ExpressionEvaluator ee;
0N/A
0N/A public SymbolResolutionClosure(ExpressionEvaluator ee) {
0N/A this.ee = ee;
0N/A }
0N/A
0N/A public void visit(Object o, boolean hasNext) throws MonitorException {
0N/A if (! (o instanceof ColumnFormat)) {
0N/A return;
0N/A }
0N/A
0N/A ColumnFormat c = (ColumnFormat)o;
0N/A Expression e = c.getExpression();
0N/A String previous = e.toString();
0N/A e = (Expression)ee.evaluate(e);
0N/A if (debug) {
0N/A System.out.print("Expression: " + previous + " resolved to "
0N/A + e.toString());
0N/A }
0N/A c.setExpression(e);
0N/A }
0N/A}