1 /* 2 * Copyright (C) 2010 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.clearsilver.jsilver.exceptions; 18 19 /** 20 * Thrown when resource (e.g. template or HDF) contains bad syntax. 21 */ 22 public class JSilverBadSyntaxException extends JSilverException { 23 24 private final String resourceName; 25 26 private final int line; 27 28 private final int column; 29 30 /** 31 * Signifies line or column is not known. 32 */ 33 public static final int UNKNOWN_POSITION = -1; 34 35 /** 36 * Constructor of JSilverBadSyntaxException. 37 * 38 * @param message text of an error message 39 * @param lineContent content of a line where error occurred (can be null) 40 * @param resourceName name of a file where error occurred (can be null) 41 * @param line number of a line in {@code resourceName} where error occurred (ignored if set to 42 * {@link #UNKNOWN_POSITION}) 43 * @param column number of a column in {@code resourceName} where error occurred (ignored if set 44 * to {@link #UNKNOWN_POSITION}) 45 * @param cause an original exception of an error. Null value is permitted and indicates that the 46 * cause is nonexistent or unknown. 47 */ JSilverBadSyntaxException(String message, String lineContent, String resourceName, int line, int column, Throwable cause)48 public JSilverBadSyntaxException(String message, String lineContent, String resourceName, 49 int line, int column, Throwable cause) { 50 super(makeMessage(message, lineContent, resourceName, line, column), cause); 51 this.resourceName = resourceName; 52 this.line = line; 53 this.column = column; 54 } 55 makeMessage(String message, String lineContent, String resourceName, int line, int column)56 private static String makeMessage(String message, String lineContent, String resourceName, 57 int line, int column) { 58 StringBuilder result = new StringBuilder(message); 59 if (resourceName != null) { 60 result.append(" resource=").append(resourceName); 61 } 62 if (lineContent != null) { 63 result.append(" content=").append(lineContent); 64 } 65 if (line != UNKNOWN_POSITION) { 66 result.append(" line=").append(line); 67 } 68 if (column != UNKNOWN_POSITION) { 69 result.append(" column=").append(column); 70 } 71 return result.toString(); 72 } 73 74 /** 75 * Name of resource that had syntax error (typically a file name). 76 */ getResourceName()77 public String getResourceName() { 78 return resourceName; 79 } 80 81 /** 82 * Line number this syntax error occured, or {@link #UNKNOWN_POSITION}. 83 */ getLine()84 public int getLine() { 85 return line; 86 } 87 88 /** 89 * Column number this syntax error occured, or {@link #UNKNOWN_POSITION}. 90 */ getColumn()91 public int getColumn() { 92 return column; 93 } 94 95 } 96