/*******************************************************************************
* Copyright 2013 André Rouél
*
* 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 net.sf.uadetector.json.internal.data.deserializer;
import static net.sf.uadetector.json.internal.data.field.SerializableDeviceField.HASH;
import static net.sf.uadetector.json.internal.data.field.SerializableDeviceField.ICON;
import static net.sf.uadetector.json.internal.data.field.SerializableDeviceField.INFO_URL;
import static net.sf.uadetector.json.internal.data.field.SerializableDeviceField.NAME;
import static net.sf.uadetector.json.internal.data.field.SerializableDeviceField.PATTERNS;
import java.lang.reflect.Type;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.concurrent.atomic.AtomicInteger;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import net.sf.qualitycheck.Check;
import net.sf.uadetector.internal.data.domain.Device;
import net.sf.uadetector.internal.data.domain.DevicePattern;
import net.sf.uadetector.json.SerDeOption;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
public final class DeviceDeserializer extends AbstractDeserializer<Device> implements JsonDeserializer<Device> {
private final AtomicInteger counter = new AtomicInteger(0);
private final DevicePatternDeserializer devicePatternDeserializer;
private final Map<String, Device> devices = new HashMap<String, Device>();
public DeviceDeserializer(final EnumSet<SerDeOption> options, final DevicePatternDeserializer devicePatternDeserializer) {
super(options);
this.devicePatternDeserializer = Check.notNull(devicePatternDeserializer, "devicePatternDeserializer");
}
@Override
public Device deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) {
String hash = EMPTY_HASH_CODE;
// deserialize
final Device.Builder b = new Device.Builder();
b.setId(counter.incrementAndGet());
for (final Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
if (HASH.getName().equals(entry.getKey())) {
hash = entry.getValue().getAsString();
} else if (ICON.getName().equals(entry.getKey())) {
b.setIcon(entry.getValue().getAsString());
} else if (INFO_URL.getName().equals(entry.getKey())) {
b.setInfoUrl(entry.getValue().getAsString());
} else if (NAME.getName().equals(entry.getKey())) {
b.setName(entry.getValue().getAsString());
} else if (PATTERNS.getName().equals(entry.getKey())) {
final SortedSet<DevicePattern> patterns = new TreeSet<DevicePattern>();
for (final JsonElement patternHash : entry.getValue().getAsJsonArray()) {
final DevicePattern pattern = devicePatternDeserializer.findDevicePattern(patternHash.getAsString());
if (pattern != null) {
patterns.add(pattern);
}
}
b.setPatterns(patterns);
}
}
// create device
Device d = null;
try {
// build
d = b.build();
// check hash when option is set
checkHash(json, hash, d);
// add pattern to map
devices.put(hash, d);
} catch (final Exception e) {
addWarning(e.getLocalizedMessage());
}
return d;
}
@Nullable
public Device findDevice(@Nonnull final String hash) {
Check.notEmpty(hash, "hash");
final Device d = devices.get(hash);
if (d == null) {
addWarning("Can not find device for hash '" + hash + "'.");
}
return d;
}
}