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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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.
*
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package sun.tools.jstat;
import java.util.*;
/**
* A class to represent the format for a column of data.
*
* @author Brian Doherty
* @since 1.5
*/
public class ColumnFormat extends OptionFormat {
private int number;
private int width;
private Alignment align = Alignment.CENTER;
private Scale scale = Scale.RAW;
private String format;
private String header;
private Expression expression;
private boolean required = false;
private Object previousValue;
public ColumnFormat(int number) {
super("Column" + number);
this.number = number;
}
/*
* method to apply various validation rules to the ColumnFormat object.
*/
public void validate() throws ParserException {
// if we allow column spanning, then this method must change. it
// should allow null data statments
if (expression == null) {
// current policy is that a data statement must be specified
throw new ParserException("Missing data statement in column " + number);
}
if (header == null) {
// current policy is that if a header is not specified, then we
// will use the last component of the name as the header and
// insert the default anchor characters for center alignment..
throw new ParserException("Missing header statement in column " + number);
}
if (format == null) {
// if no formating is specified, then the format is set to output
// the raw data.
format="0";
}
// Adjust required flag
expression.setRequired(required);
}
public void setWidth(int width) {
this.width = width;
}
public void setAlignment(Alignment align) {
this.align = align;
}
public void setScale(Scale scale) {
this.scale = scale;
}
public void setFormat(String format) {
this.format = format;
}
public void setHeader(String header) {
this.header = header;
}
public String getHeader() {
return header;
}
public String getFormat() {
return format;
}
public int getWidth() {
return width;
}
public Alignment getAlignment() {
return align;
}
public Scale getScale() {
return scale;
}
public Expression getExpression() {
return expression;
}
public void setExpression(Expression e) {
this.expression = e;
}
public void setRequired(boolean r) {
this.required = r;
}
public boolean isRequired() {
return this.required;
}
public void setPreviousValue(Object o) {
this.previousValue = o;
}
public Object getPreviousValue() {
return previousValue;
}
public void printFormat(int indentLevel) {
String indentAmount = " ";
StringBuilder indent = new StringBuilder("");
for (int j = 0; j < indentLevel; j++) {
indent.append(indentAmount);
}
System.out.println(indent + name + " {");
System.out.println(indent + indentAmount + "name=" + name
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