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/*
* Copyright (C) 2012 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 android.bordeaux.services;
import android.bordeaux.services.StringString;
import android.content.Context;
import android.util.Log;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
class AggregatorManager extends IAggregatorManager.Stub {
private final String TAG = "AggregatorMnager";
// this maps from the aggregator name to the registered aggregator instance
private static HashMap<String, Aggregator> mAggregators = new HashMap<String, Aggregator>();
// this maps from the feature names to the aggregator that generates the feature
private static HashMap<String, Aggregator> sFeatureMap = new HashMap<String, Aggregator>();
private static AggregatorManager mManager = null;
private String mFakeLocation = null;
private AggregatorManager() {
sFeatureMap = new HashMap<String, Aggregator>();
}
public static AggregatorManager getInstance() {
if (mManager == null )
mManager = new AggregatorManager();
return mManager;
}
public String[] getListOfFeatures() {
String[] s = new String[sFeatureMap.size()];
int i = 0;
for (Map.Entry<String, Aggregator> x : sFeatureMap.entrySet()) {
s[i] = x.getKey();
i++;
}
return s;
}
public void registerAggregator(Aggregator agg, AggregatorManager m) {
if (mAggregators.get(agg.getClass().getName()) != null) {
// only one instance
throw new RuntimeException("Can't register more than one instance");
}
mAggregators.put(agg.getClass().getName(), agg);
agg.setManager(m);
String[] fl = agg.getListOfFeatures();
for ( int i = 0; i< fl.length; i ++)
sFeatureMap.put(fl[i], agg);
}
// Start of IAggregatorManager interface
public ArrayList<StringString> getData(String dataName) {
return getList(getDataMap(dataName));
}
public List<String> getLocationClusters() {
LocationStatsAggregator agg = (LocationStatsAggregator)
mAggregators.get(LocationStatsAggregator.class.getName());
if (agg == null) return new ArrayList<String> ();
ArrayList<String> clusters = new ArrayList<String>();
return agg.getClusterNames();
}
// Set an empty string "" to disable the fake location
public boolean setFakeLocation(String location) {
LocationStatsAggregator agg = (LocationStatsAggregator)
mAggregators.get(LocationStatsAggregator.class.getName());
if (agg == null) return false;
agg.setFakeLocation(location);
mFakeLocation = location;
return true;
}
// Get the current mode, if fake mode return true
public boolean getFakeMode() {
boolean fakeMode = false;
// checking any features that are in the fake mode
if (mFakeLocation != null && mFakeLocation.length() != 0)
fakeMode = true;
return fakeMode;
}
// End of IAggregatorManger interface
public Map<String, String> getDataMap(String dataName) {
if (sFeatureMap.get(dataName) != null)
return sFeatureMap.get(dataName).getFeatureValue(dataName);
else
Log.e(TAG, "There is no feature called " + dataName);
return null;
}
private ArrayList<StringString> getList(final Map<String, String> sample) {
ArrayList<StringString> StringString_sample = new ArrayList<StringString>();
for (Map.Entry<String, String> x : sample.entrySet()) {
StringString v = new StringString();
v.key = x.getKey();
v.value = x.getValue();
StringString_sample.add(v);
}
return StringString_sample;
}
}
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