/*
* 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.tools.perflib.heap;
import com.android.tools.perflib.heap.io.HprofBuffer;
import com.android.tools.perflib.heap.io.MemoryMappedFileBuffer;
import java.io.File;
import java.util.Map;
import java.util.Set;
public class Main {
public static void main(String argv[]) {
try {
long start = System.nanoTime();
HprofBuffer buffer = new MemoryMappedFileBuffer(new File(argv[0]));
Snapshot snapshot = (new HprofParser(buffer)).parse();
testClassesQuery(snapshot);
testAllClassesQuery(snapshot);
testFindInstancesOf(snapshot);
testFindAllInstancesOf(snapshot);
System.out.println("Memory stats: free=" + Runtime.getRuntime().freeMemory()
+ " / total=" + Runtime.getRuntime().totalMemory());
System.out.println("Time: " + (System.nanoTime() - start) / 1000000 + "ms");
} catch (Exception e) {
e.printStackTrace();
}
}
private static void testClassesQuery(Snapshot snapshot) {
String[] x = new String[]{
"char[",
"javax.",
"org.xml.sax"
};
Map<String, Set<ClassObj>> someClasses = Queries.classes(snapshot, 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(Snapshot snapshot) {
Map<String, Set<ClassObj>> allClasses = Queries.allClasses(snapshot);
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(Snapshot snapshot) {
Instance[] instances = Queries.instancesOf(snapshot, "java.lang.String");
System.out.println("There are " + instances.length + " Strings.");
}
private static void testFindAllInstancesOf(Snapshot snapshot) {
Instance[] instances = Queries.allInstancesOf(snapshot,
"android.graphics.drawable.Drawable");
System.out.println("There are " + instances.length
+ " instances of Drawables and its subclasses.");
}
}