1 /* 2 * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.tools.jstat; 27 28 import java.util.*; 29 30 /** 31 * A class to represent the format for a column of data. 32 * 33 * @author Brian Doherty 34 * @since 1.5 35 */ 36 public class ColumnFormat extends OptionFormat { 37 private int number; 38 private int width; 39 private Alignment align = Alignment.CENTER; 40 private Scale scale = Scale.RAW; 41 private String format; 42 private String header; 43 private Expression expression; 44 private boolean required = false; 45 private Object previousValue; 46 47 public ColumnFormat(int number) { 48 super("Column" + number); 49 this.number = number; 50 } 51 52 /* 53 * method to apply various validation rules to the ColumnFormat object. 54 */ 55 public void validate() throws ParserException { 56 57 // if we allow column spanning, then this method must change. it 58 // should allow null data statments 59 60 if (expression == null) { 61 // current policy is that a data statement must be specified 62 throw new ParserException("Missing data statement in column " + number); 63 } 64 if (header == null) { 65 // current policy is that if a header is not specified, then we 66 // will use the last component of the name as the header and 67 // insert the default anchor characters for center alignment.. 68 throw new ParserException("Missing header statement in column " + number); 69 } 70 if (format == null) { 71 // if no formating is specified, then the format is set to output 72 // the raw data. 73 format="0"; 74 } 75 76 // Adjust required flag 77 expression.setRequired(required); 78 } 79 80 public void setWidth(int width) { 81 this.width = width; 82 } 83 84 public void setAlignment(Alignment align) { 85 this.align = align; 86 } 87 88 public void setScale(Scale scale) { 89 this.scale = scale; 90 } 91 92 public void setFormat(String format) { 93 this.format = format; 94 } 95 96 public void setHeader(String header) { 97 this.header = header; 98 } 99 100 public String getHeader() { 101 return header; 102 } 103 104 public String getFormat() { 105 return format; 106 } 107 108 public int getWidth() { 109 return width; 110 } 111 112 public Alignment getAlignment() { 113 return align; 114 } 115 116 public Scale getScale() { 117 return scale; 118 } 119 120 public Expression getExpression() { 121 return expression; 122 } 123 124 public void setExpression(Expression e) { 125 this.expression = e; 126 } 127 128 public void setRequired(boolean r) { 129 this.required = r; 130 } 131 132 public boolean isRequired() { 133 return this.required; 134 } 135 136 public void setPreviousValue(Object o) { 137 this.previousValue = o; 138 } 139 140 public Object getPreviousValue() { 141 return previousValue; 142 } 143 144 public void printFormat(int indentLevel) { 145 String indentAmount = " "; 146 147 StringBuilder indent = new StringBuilder(""); 148 for (int j = 0; j < indentLevel; j++) { 149 indent.append(indentAmount); 150 } 151 152 System.out.println(indent + name + " {"); 153 System.out.println(indent + indentAmount + "name=" + name 154 + ";data=" + expression.toString() + ";header=" + header 155 + ";format=" + format + ";width=" + width 156 + ";scale=" + scale.toString() + ";align=" + align.toString() 157 + ";required=" + required); 158 159 for (Iterator<OptionFormat> i = children.iterator(); i.hasNext(); /* empty */) { 160 OptionFormat of = i.next(); 161 of.printFormat(indentLevel+1); 162 } 163 164 System.out.println(indent + "}"); 165 } 166 167 public String getValue() { 168 return null; 169 } 170 }