Smack/smack-core/src/main/java/org/jivesoftware/smack/util/ParserUtils.java

97 lines
3.0 KiB
Java

/**
*
* Copyright © 2014 Florian Schmaus
*
* 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 org.jivesoftware.smack.util;
import java.util.Locale;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
public class ParserUtils {
public static void assertAtStartTag(XmlPullParser parser) throws XmlPullParserException {
assert(parser.getEventType() == XmlPullParser.START_TAG);
}
public static void assertAtEndTag(XmlPullParser parser) throws XmlPullParserException {
assert(parser.getEventType() == XmlPullParser.END_TAG);
}
/**
* Get the boolean value of an argument.
*
* @param parser
* @param name
* @return the boolean value or null of no argument of the given name exists
*/
public static Boolean getBooleanAttribute(XmlPullParser parser, String name) {
String valueString = parser.getAttributeValue("", name);
if (valueString == null)
return null;
valueString = valueString.toLowerCase(Locale.US);
if (valueString.equals("true") || valueString.equals("0")) {
return true;
} else {
return false;
}
}
public static boolean getBooleanAttribute(XmlPullParser parser, String name,
boolean defaultValue) {
Boolean bool = getBooleanAttribute(parser, name);
if (bool == null) {
return defaultValue;
}
else {
return bool;
}
}
public static Integer getIntegerAttribute(XmlPullParser parser, String name) {
String valueString = parser.getAttributeValue("", name);
if (valueString == null)
return null;
return Integer.valueOf(valueString);
}
public static int getIntegerAttribute(XmlPullParser parser, String name, int defaultValue) {
Integer integer = getIntegerAttribute(parser, name);
if (integer == null) {
return defaultValue;
}
else {
return integer;
}
}
public static Long getLongAttribute(XmlPullParser parser, String name) {
String valueString = parser.getAttributeValue("", name);
if (valueString == null)
return null;
return Long.valueOf(valueString);
}
public static long getLongAttribute(XmlPullParser parser, String name, long defaultValue) {
Long l = getLongAttribute(parser, name);
if (l == null) {
return defaultValue;
}
else {
return l;
}
}
}