1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17 package com.android.inputmethod.latin; 18 19 import android.content.res.TypedArray; 20 21 import org.xmlpull.v1.XmlPullParser; 22 import org.xmlpull.v1.XmlPullParserException; 23 24 import java.io.IOException; 25 26 public class XmlParseUtils { 27 private XmlParseUtils() { 28 // This utility class is not publicly instantiable. 29 } 30 31 @SuppressWarnings("serial") 32 public static class ParseException extends XmlPullParserException { 33 public ParseException(String msg, XmlPullParser parser) { 34 super(msg + " at " + parser.getPositionDescription()); 35 } 36 } 37 38 @SuppressWarnings("serial") 39 public static class IllegalStartTag extends ParseException { 40 public IllegalStartTag(XmlPullParser parser, String parent) { 41 super("Illegal start tag " + parser.getName() + " in " + parent, parser); 42 } 43 } 44 45 @SuppressWarnings("serial") 46 public static class IllegalEndTag extends ParseException { 47 public IllegalEndTag(XmlPullParser parser, String parent) { 48 super("Illegal end tag " + parser.getName() + " in " + parent, parser); 49 } 50 } 51 52 @SuppressWarnings("serial") 53 public static class IllegalAttribute extends ParseException { 54 public IllegalAttribute(XmlPullParser parser, String attribute) { 55 super("Tag " + parser.getName() + " has illegal attribute " + attribute, parser); 56 } 57 } 58 59 @SuppressWarnings("serial") 60 public static class NonEmptyTag extends ParseException{ 61 public NonEmptyTag(String tag, XmlPullParser parser) { 62 super(tag + " must be empty tag", parser); 63 } 64 } 65 66 public static void checkEndTag(String tag, XmlPullParser parser) 67 throws XmlPullParserException, IOException { 68 if (parser.next() == XmlPullParser.END_TAG && tag.equals(parser.getName())) 69 return; 70 throw new NonEmptyTag(tag, parser); 71 } 72 73 public static void checkAttributeExists(TypedArray attr, int attrId, String attrName, 74 String tag, XmlPullParser parser) throws XmlPullParserException { 75 if (attr.hasValue(attrId)) 76 return; 77 throw new ParseException( 78 "No " + attrName + " attribute found in <" + tag + "/>", parser); 79 } 80 } 81
