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Copy pathSetXmlSerializer.java
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103 lines (80 loc) · 2.62 KB
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/**
* Copyright (C) 2010-2015 eBusiness Information, Excilys Group
*
* 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.androidannotations.api.sharedpreferences;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import android.util.Log;
import android.util.Xml;
public final class SetXmlSerializer {
private static final String NAMESPACE = "";
private static final String STRING_TAG = "AA_string";
private static final String SET_TAG = "AA_set";
private SetXmlSerializer() {
}
public static String serialize(Set<String> set) {
if (set == null) {
set = Collections.emptySet();
}
StringWriter writer = new StringWriter();
XmlSerializer serializer = Xml.newSerializer();
try {
serializer.setOutput(writer);
serializer.startTag(NAMESPACE, SET_TAG);
for (String string : set) {
serializer.startTag(NAMESPACE, STRING_TAG) //
.text(string) //
.endTag(NAMESPACE, STRING_TAG);
}
serializer.endTag(NAMESPACE, SET_TAG) //
.endDocument();
} catch (IllegalArgumentException e) {
} catch (IllegalStateException e) {
} catch (IOException e) {
}
return writer.toString();
}
public static Set<String> deserialize(String data) {
Set<String> stringSet = new TreeSet<String>();
XmlPullParser parser = Xml.newPullParser();
try {
parser.setInput(new StringReader(data));
parser.next();
parser.require(XmlPullParser.START_TAG, NAMESPACE, SET_TAG);
while (parser.next() != XmlPullParser.END_TAG) {
parser.require(XmlPullParser.START_TAG, NAMESPACE, STRING_TAG);
parser.next();
parser.require(XmlPullParser.TEXT, null, null);
stringSet.add(parser.getText());
parser.next();
parser.require(XmlPullParser.END_TAG, null, STRING_TAG);
}
} catch (XmlPullParserException e) {
Log.w("getStringSet", e);
return null;
} catch (IOException e) {
Log.w("getStringSet", e);
return null;
}
return stringSet;
}
}