content: /*
   * Copyright (C) 2015 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.ahat;
  
  import java.io.IOException;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.List;
  
  class NativeAllocationsHandler implements AhatHandler {
    private static final String ALLOCATIONS_ID = "allocations";
  
    private AhatSnapshot mSnapshot;
  
    public NativeAllocationsHandler(AhatSnapshot snapshot) {
      mSnapshot = snapshot;
    }
  
    @Override
    public void handle(Doc doc, Query query) throws IOException {
      List<InstanceUtils.NativeAllocation> allocs = mSnapshot.getNativeAllocations();
  
      doc.title("Registered Native Allocations");
  
      doc.section("Overview");
      long totalSize = 0;
      for (InstanceUtils.NativeAllocation alloc : allocs) {
        totalSize += alloc.size;
      }
      doc.descriptions();
      doc.description(DocString.text("Number of Registered Native Allocations"),
          DocString.format("%,14d", allocs.size()));
      doc.description(DocString.text("Total Size of Registered Native Allocations"),
          DocString.format("%,14d", totalSize));
      doc.end();
  
      doc.section("List of Allocations");
      if (allocs.isEmpty()) {
        doc.println(DocString.text("(none)"));
      } else {
        doc.table(
            new Column("Size", Column.Align.RIGHT),
            new Column("Heap"),
            new Column("Native Pointer"),
            new Column("Referent"));
        Comparator<InstanceUtils.NativeAllocation> compare
          = new Sort.WithPriority<InstanceUtils.NativeAllocation>(
              new Sort.NativeAllocationByHeapName(),
              new Sort.NativeAllocationBySize());
        Collections.sort(allocs, compare);
        SubsetSelector<InstanceUtils.NativeAllocation> selector
          = new SubsetSelector(query, ALLOCATIONS_ID, allocs);
        for (InstanceUtils.NativeAllocation alloc : selector.selected()) {
          doc.row(
              DocString.format("%,14d", alloc.size),
              DocString.text(alloc.heap.getName()),
              DocString.format("0x%x", alloc.pointer),
              Value.render(mSnapshot, alloc.referent));
        }
  
        // Print a summary of the remaining entries if there are any.
        List<InstanceUtils.NativeAllocation> remaining = selector.remaining();
        if (!remaining.isEmpty()) {
          long total = 0;
          for (InstanceUtils.NativeAllocation alloc : remaining) {
            total += alloc.size;
          }
  
          doc.row(
              DocString.format("%,14d", total),
              DocString.text("..."),
              DocString.text("..."),
              DocString.text("..."));
        }
  
        doc.end();
        selector.render(doc);
      }
    }
  }
  
  