/*******************************************************************************
* 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.SerializableOperatingSystemField.FAMILY;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.HASH;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.ICON;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.INFO_URL;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.NAME;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.PATTERN_HASHS;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.PRODUCER;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.PRODUCER_URL;
import static net.sf.uadetector.json.internal.data.field.SerializableOperatingSystemField.URL;
import java.lang.reflect.Type;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
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.OperatingSystem;
import net.sf.uadetector.internal.data.domain.OperatingSystemPattern;
import net.sf.uadetector.json.SerDeOption;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
public final class OperatingSystemDeserializer extends AbstractDeserializer<OperatingSystem> implements JsonDeserializer<OperatingSystem> {
private final AtomicInteger counter = new AtomicInteger(0);
private final OperatingSystemPatternDeserializer operatingSystemPatternDeserializer;
private final Map<String, OperatingSystem> operatingSystems = new HashMap<String, OperatingSystem>();
public OperatingSystemDeserializer(final EnumSet<SerDeOption> options,
final OperatingSystemPatternDeserializer operatingSystemPatternDeserializer) {
super(options);
this.operatingSystemPatternDeserializer = Check.notNull(operatingSystemPatternDeserializer, "operatingSystemPatternDeserializer");
}
@Override
public OperatingSystem deserialize(final JsonElement json, final Type typeOfT, final JsonDeserializationContext context) {
String hash = EMPTY_HASH_CODE;
// deserialize
final OperatingSystem.Builder b = new OperatingSystem.Builder();
b.setId(counter.incrementAndGet());
for (final Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
if (FAMILY.getName().equals(entry.getKey())) {
b.setFamily(entry.getValue().getAsString());
} else 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 (PATTERN_HASHS.getName().equals(entry.getKey())) {
final Set<OperatingSystemPattern> patternSet = new HashSet<OperatingSystemPattern>();
for (final JsonElement patternHash : entry.getValue().getAsJsonArray()) {
final OperatingSystemPattern osPattern = operatingSystemPatternDeserializer.findOperatingSystemPattern(patternHash
.getAsString());
if (osPattern != null) {
patternSet.add(osPattern);
}
}
b.addPatterns(patternSet);
} else if (PRODUCER.getName().equals(entry.getKey())) {
b.setProducer(entry.getValue().getAsString());
} else if (PRODUCER_URL.getName().equals(entry.getKey())) {
b.setProducerUrl(entry.getValue().getAsString());
} else if (URL.getName().equals(entry.getKey())) {
b.setUrl(entry.getValue().getAsString());
}
}
// create operating system
OperatingSystem os = null;
try {
// build
os = b.build();
// check hash when option is set
checkHash(json, hash, os);
// add pattern to map
operatingSystems.put(hash, os);
} catch (final Exception e) {
addWarning(e.getLocalizedMessage());
}
return os;
}
@Nullable
public OperatingSystem findOperatingSystem(@Nonnull final String hash) {
Check.notEmpty(hash, "hash");
final OperatingSystem os = operatingSystems.get(hash);
if (os == null) {
addWarning("Can not find operating system for hash '" + hash + "'.");
}
return os;
}
}