jps/jps-builders/src/org/jetbrains/jps/builders/java/dependencyView/IntObjectMultiMaplet.java

/*
 * Copyright 2000-2012 JetBrains s.r.o.
 *
 * 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 org.jetbrains.jps.builders.java.dependencyView;

import gnu.trove.TIntObjectProcedure;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

/**
 * @author: db
 * Date: 03.11.11
 */
abstract class IntObjectMultiMaplet<V> implements Streamable {
  abstract boolean containsKey(final int key);

  abstract Collection<V> get(final int key);

  abstract void put(final int key, final V value);

  abstract void put(final int key, final Collection<V> value);

  abstract void replace(final int key, final Collection<V> value);

  abstract void putAll(IntObjectMultiMaplet<V> m);

  abstract void replaceAll(IntObjectMultiMaplet<V> m);

  abstract void remove(final int key);

  abstract void removeFrom(final int key, final V value);

  abstract void removeAll(final int key, final Collection<V> value);

  abstract void close();

  abstract void forEachEntry(TIntObjectProcedure<Collection<V>> procedure);

  abstract void flush(boolean memoryCachesOnly);

  public void toStream(final DependencyContext context, final PrintStream stream) {
    final OrderProvider op = new OrderProvider(context);

    forEachEntry(new TIntObjectProcedure<Collection<V>>() {
      @Override
      public boolean execute(final int a, final Collection<V> b) {
        op.register(a);
        return true;
      }
    });

    final int[] keys = op.get();

    for (final int a : keys) {
      final Collection<V> b = get(a);

      stream.print("  Key: ");
      stream.println(context.getValue(a));
      stream.println("  Values:");

      final List<String> list = new LinkedList<String>();

      for (final V value : b) {
        if (value instanceof Streamable) {
          final ByteArrayOutputStream baos = new ByteArrayOutputStream();
          final PrintStream s = new PrintStream(baos);

          ((Streamable)value).toStream(context, s);

          list.add(baos.toString());
        }
        else {
          list.add(value.toString());
        }
      }

      Collections.sort(list);

      for (final String l : list) {
        stream.print(l);
      }

      stream.println("  End Of Values");
    }
  }
}