hit/src/com/android/hit/Main.java

/*
 * Copyright (C) 2008 Google Inc.
 *
 * 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.hit;

import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.util.Map;
import java.util.Set;

public class Main
{
    public static void main(String argv[]) {
        FileInputStream fis;
        BufferedInputStream bis;
        DataInputStream dis;

        try {
            fis = new FileInputStream(argv[0]);
            bis = new BufferedInputStream(fis);
            dis = new DataInputStream(bis);

            State state = (new HprofParser(dis)).parse();

            dis.close();

            testClassesQuery(state);
            testAllClassesQuery(state);
            testFindInstancesOf(state);
            testFindAllInstancesOf(state);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void testClassesQuery(State state) {
        String[] x = new String[] {
            "char[",
            "javax.",
            "org.xml.sax"
        };

        Map<String, Set<ClassObj>> someClasses = Queries.classes(state, x);

        for (String thePackage: someClasses.keySet()) {
            System.out.println("------------------- " + thePackage);

            Set<ClassObj> classes = someClasses.get(thePackage);

            for (ClassObj theClass: classes) {
                System.out.println("     " + theClass.mClassName);
            }
        }
    }

    private static void testAllClassesQuery(State state) {
        Map<String, Set<ClassObj>> allClasses = Queries.allClasses(state);

        for (String thePackage: allClasses.keySet()) {
            System.out.println("------------------- " + thePackage);

            Set<ClassObj> classes = allClasses.get(thePackage);

            for (ClassObj theClass: classes) {
                System.out.println("     " + theClass.mClassName);
            }
        }
    }

    private static void testFindInstancesOf(State state) {
        Instance[] instances = Queries.instancesOf(state, "java.lang.String");

        System.out.println("There are " + instances.length + " Strings.");
    }

    private static void testFindAllInstancesOf(State state) {
        Instance[] instances = Queries.allInstancesOf(state,
            "android.graphics.drawable.Drawable");

        System.out.println("There are " + instances.length
            + " instances of Drawables and its subclasses.");
    }
}