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/*
* Copyright (C) 2014 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 dexfuzz;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* A wrapper for a dictionary tracking what mutations have been performed.
*/
public class MutationStats {
public static class StatNotFoundException extends RuntimeException {
private static final long serialVersionUID = -7038515184655168470L;
}
private Map<String,Long> stats;
private List<String> statsOrder;
public MutationStats() {
stats = new HashMap<String,Long>();
statsOrder = new ArrayList<String>();
}
public void incrementStat(String statName) {
increaseStat(statName, 1);
}
/**
* Increase the named stat by the specified amount.
*/
public void increaseStat(String statName, long amt) {
if (!stats.containsKey(statName)) {
stats.put(statName, 0L);
statsOrder.add(statName);
}
stats.put(statName, stats.get(statName) + amt);
}
/**
* Get a string representing the collected stats - looks like a JSON dictionary.
*/
public String getStatsString() {
StringBuilder builder = new StringBuilder();
builder.append("{");
boolean first = true;
for (String statName : statsOrder) {
if (!first) {
builder.append(", ");
} else {
first = false;
}
builder.append("\"").append(statName).append("\": ").append(stats.get(statName));
}
builder.append("}");
return builder.toString();
}
}
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