LatinIME/java/src/com/android/inputmethod/latin/XmlParseUtils.java

84 lines
3.0 KiB
Java

/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin;
import android.content.res.TypedArray;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
public final class XmlParseUtils {
private XmlParseUtils() {
// This utility class is not publicly instantiable.
}
@SuppressWarnings("serial")
public static class ParseException extends XmlPullParserException {
public ParseException(final String msg, final XmlPullParser parser) {
super(msg + " at " + parser.getPositionDescription());
}
}
@SuppressWarnings("serial")
public static final class IllegalStartTag extends ParseException {
public IllegalStartTag(final XmlPullParser parser, final String tag, final String parent) {
super("Illegal start tag " + tag + " in " + parent, parser);
}
}
@SuppressWarnings("serial")
public static final class IllegalEndTag extends ParseException {
public IllegalEndTag(final XmlPullParser parser, final String tag, final String parent) {
super("Illegal end tag " + tag + " in " + parent, parser);
}
}
@SuppressWarnings("serial")
public static final class IllegalAttribute extends ParseException {
public IllegalAttribute(final XmlPullParser parser, final String tag,
final String attribute) {
super("Tag " + tag + " has illegal attribute " + attribute, parser);
}
}
@SuppressWarnings("serial")
public static final class NonEmptyTag extends ParseException{
public NonEmptyTag(final XmlPullParser parser, final String tag) {
super(tag + " must be empty tag", parser);
}
}
public static void checkEndTag(final String tag, final XmlPullParser parser)
throws XmlPullParserException, IOException {
if (parser.next() == XmlPullParser.END_TAG && tag.equals(parser.getName()))
return;
throw new NonEmptyTag(parser, tag);
}
public static void checkAttributeExists(final TypedArray attr, final int attrId,
final String attrName, final String tag, final XmlPullParser parser)
throws XmlPullParserException {
if (attr.hasValue(attrId)) {
return;
}
throw new ParseException(
"No " + attrName + " attribute found in <" + tag + "/>", parser);
}
}