1 /* 2 * Copyright (c) 2004, 2013, 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 Object previousValue; 45 46 public ColumnFormat(int number) { 47 super("Column" + number); 48 this.number = number; 49 } 50 51 /* 52 * method to apply various validation rules to the ColumnFormat object. 53 */ 54 public void validate() throws ParserException { 55 56 // if we allow column spanning, then this method must change. it 57 // should allow null data statments 58 59 if (expression == null) { 60 // current policy is that a data statement must be specified 61 throw new ParserException("Missing data statement in column " + number); 62 } 63 if (header == null) { 64 // current policy is that if a header is not specified, then we 65 // will use the last component of the name as the header and 66 // insert the default anchor characters for center alignment.. 67 throw new ParserException("Missing header statement in column " + number); 68 } 69 if (format == null) { 70 // if no formating is specified, then the format is set to output 71 // the raw data. 72 format="0"; 73 } 74 } 75 76 public void setWidth(int width) { 77 this.width = width; 78 } 79 80 public void setAlignment(Alignment align) { 81 this.align = align; 82 } 83 84 public void setScale(Scale scale) { 85 this.scale = scale; 86 } 87 88 public void setFormat(String format) { 89 this.format = format; 90 } 91 92 public void setHeader(String header) { 93 this.header = header; 94 } 95 96 public String getHeader() { 97 return header; 98 } 99 100 public String getFormat() { 101 return format; 102 } 103 104 public int getWidth() { 105 return width; 106 } 107 108 public Alignment getAlignment() { 109 return align; 110 } 111 112 public Scale getScale() { 113 return scale; 114 } 115 116 public Expression getExpression() { 117 return expression; 118 } 119 120 public void setExpression(Expression e) { 121 this.expression = e; 122 } 123 124 public void setPreviousValue(Object o) { 125 this.previousValue = o; 126 } 127 128 public Object getPreviousValue() { 129 return previousValue; 130 } 131 132 public void printFormat(int indentLevel) { 133 String indentAmount = " "; 134 135 StringBuilder indent = new StringBuilder(""); 136 for (int j = 0; j < indentLevel; j++) { 137 indent.append(indentAmount); 138 } 139 140 System.out.println(indent + name + " {"); 141 System.out.println(indent + indentAmount + "name=" + name 142 + ";data=" + expression.toString() + ";header=" + header 143 + ";format=" + format + ";width=" + width 144 + ";scale=" + scale.toString() + ";align=" + align.toString()); 145 146 for (Iterator<OptionFormat> i = children.iterator(); i.hasNext(); /* empty */) { 147 OptionFormat of = i.next(); 148 of.printFormat(indentLevel+1); 149 } 150 151 System.out.println(indent + "}"); 152 } 153 154 public String getValue() { 155 return null; 156 } 157 }