apkparser/analyzer/src/main/java/com/android/tools/apk/analyzer/dex/DexFileStats.java


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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.tools.apk.analyzer.dex;

import com.android.annotations.NonNull;
import com.android.tools.smali.dexlib2.dexbacked.DexBackedClassDef;
import com.android.tools.smali.dexlib2.dexbacked.DexBackedDexFile;
import com.google.common.collect.Iterables;
import java.util.Collection;
import java.util.Set;

public class DexFileStats {
    public final int classCount;
    public final int definedMethodCount;
    public final int referencedMethodCount;

    private DexFileStats(int classCount, int definedMethodCount, int referencedMethodCount) {
        this.classCount = classCount;
        this.definedMethodCount = definedMethodCount;
        this.referencedMethodCount = referencedMethodCount;
    }

    @NonNull
    public static DexFileStats create(@NonNull Collection<DexBackedDexFile> dexFiles) {
        int definedMethodCount = 0;
        int classesCount = 0;
        int methodCount = 0;

        for (DexBackedDexFile dexFile : dexFiles) {
            Set<? extends DexBackedClassDef> classes = dexFile.getClasses();
            for (DexBackedClassDef dexBackedClassDef : classes) {
                definedMethodCount += Iterables.size(dexBackedClassDef.getMethods());
            }
            classesCount += classes.size();
            methodCount += dexFile.getMethodSection().size();
        }

        return new DexFileStats(classesCount, definedMethodCount, methodCount);
    }
}