--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/tools/jstat/RowClosure.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.tools.jstat;
+
+import java.text.*;
+import sun.jvmstat.monitor.*;
+
+/**
+ * A class implementing the Closure interface for iterating over the
+ * specified columns of data and generating the columnized string of
+ * data representing a row of output for the form.
+ *
+ * @author Brian Doherty
+ * @since 1.5
+ */
+public class RowClosure implements Closure {
+    private MonitoredVm vm;
+    private StringBuilder row = new StringBuilder();
+
+    public RowClosure(MonitoredVm vm) {
+        this.vm = vm;
+    }
+
+    public void visit(Object o, boolean hasNext) throws MonitorException {
+        if (! (o instanceof ColumnFormat)) {
+            return;
+        }
+
+        ColumnFormat c = (ColumnFormat)o;
+        String s = null;
+
+        Expression e = c.getExpression();
+        ExpressionEvaluator ee = new ExpressionExecuter(vm);
+        Object value = ee.evaluate(e);
+
+        if (value instanceof String) {
+            s = (String)value;
+        } else if (value instanceof Number) {
+            double d = ((Number)value).doubleValue();
+            double scaledValue = c.getScale().scale(d);
+            DecimalFormat df = new DecimalFormat(c.getFormat());
+            s = df.format(scaledValue);
+        }
+
+        c.setPreviousValue(value);
+        s = c.getAlignment().align(s, c.getWidth());
+        row.append(s);
+        if (hasNext) {
+            row.append(" ");
+        }
+    }
+
+    public String getRow() {
+        return row.toString();
+    }
+}