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/*
* Copyright (C) 2017 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.server.wifi;
import com.android.server.wifi.util.XmlUtil;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
/**
* This class performs serialization and parsing of XML data block that contain the list of
* deleted ephemeral SSIDs (XML block data inside <DeletedEphemeralSSIDList> tag).
*/
public class DeletedEphemeralSsidsStoreData implements WifiConfigStore.StoreData {
private static final String XML_TAG_SECTION_HEADER_DELETED_EPHEMERAL_SSID_LIST =
"DeletedEphemeralSSIDList";
private static final String XML_TAG_SSID_LIST = "SSIDList";
private Set<String> mSsidList;
DeletedEphemeralSsidsStoreData() {}
@Override
public void serializeData(XmlSerializer out, boolean shared)
throws XmlPullParserException, IOException {
if (shared) {
throw new XmlPullParserException("Share data not supported");
}
if (mSsidList != null) {
XmlUtil.writeNextValue(out, XML_TAG_SSID_LIST, mSsidList);
}
}
@Override
public void deserializeData(XmlPullParser in, int outerTagDepth, boolean shared)
throws XmlPullParserException, IOException {
// Ignore empty reads.
if (in == null) {
return;
}
if (shared) {
throw new XmlPullParserException("Share data not supported");
}
while (!XmlUtil.isNextSectionEnd(in, outerTagDepth)) {
String[] valueName = new String[1];
Object value = XmlUtil.readCurrentValue(in, valueName);
if (valueName[0] == null) {
throw new XmlPullParserException("Missing value name");
}
switch (valueName[0]) {
case XML_TAG_SSID_LIST:
mSsidList = (Set<String>) value;
break;
default:
throw new XmlPullParserException("Unknown tag under "
+ XML_TAG_SECTION_HEADER_DELETED_EPHEMERAL_SSID_LIST
+ ": " + valueName[0]);
}
}
}
@Override
public void resetData(boolean shared) {
if (!shared) {
mSsidList = null;
}
}
@Override
public String getName() {
return XML_TAG_SECTION_HEADER_DELETED_EPHEMERAL_SSID_LIST;
}
@Override
public boolean supportShareData() {
return false;
}
/**
* An empty set will be returned for null SSID list.
*
* @return Set of SSIDs
*/
public Set<String> getSsidList() {
if (mSsidList == null) {
return new HashSet<String>();
}
return mSsidList;
}
public void setSsidList(Set<String> ssidList) {
mSsidList = ssidList;
}
}
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