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 com.android.tools.perflib.heap.Heap;
  import java.io.IOException;
  import java.io.File;
  import java.util.Collections;
  import java.util.List;
  
  class OverviewHandler implements AhatHandler {
  
    private static final String OVERVIEW_ID = "overview";
  
    private AhatSnapshot mSnapshot;
    private File mHprof;
  
    public OverviewHandler(AhatSnapshot snapshot, File hprof) {
      mSnapshot = snapshot;
      mHprof = hprof;
    }
  
    @Override
    public void handle(Doc doc, Query query) throws IOException {
      doc.title("Overview");
  
      doc.section("General Information");
      doc.descriptions();
      doc.description(
          DocString.text("ahat version"),
          DocString.format("ahat-%s", OverviewHandler.class.getPackage().getImplementationVersion()));
      doc.description(DocString.text("hprof file"), DocString.text(mHprof.toString()));
      doc.end();
  
      doc.section("Heap Sizes");
      printHeapSizes(doc, query);
  
      List<InstanceUtils.NativeAllocation> allocs = mSnapshot.getNativeAllocations();
      if (!allocs.isEmpty()) {
        doc.section("Registered Native Allocations");
        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.big(Menu.getMenu());
    }
  
    private void printHeapSizes(Doc doc, Query query) {
      List<Object> dummy = Collections.singletonList(null);
  
      HeapTable.TableConfig<Object> table = new HeapTable.TableConfig<Object>() {
        public String getHeapsDescription() {
          return "Bytes Retained by Heap";
        }
  
        public long getSize(Object element, Heap heap) {
          return mSnapshot.getHeapSize(heap);
        }
  
        public List<HeapTable.ValueConfig<Object>> getValueConfigs() {
          return Collections.emptyList();
        }
      };
      HeapTable.render(doc, query, OVERVIEW_ID, table, mSnapshot, dummy);
    }
  }
  
  