// Copyright 2011 Google Inc. All Rights Reserved.
//
// 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.

// Note: This file is a copy of AccumulatingDocIdPusher from the Sharepoint
//       library, with only the package name changed.
package com.google.enterprise.adaptor.ad;

import com.google.enterprise.adaptor.Acl;
import com.google.enterprise.adaptor.DocId;
import com.google.enterprise.adaptor.ExceptionHandler;
import com.google.enterprise.adaptor.GroupPrincipal;
import com.google.enterprise.adaptor.Principal;

import java.util.*;

class AccumulatingDocIdPusher extends UnsupportedDocIdPusher {
  private List<Record> records = new ArrayList<Record>();
  private List<Map<DocId, Acl>> namedResouces
      = new ArrayList<Map<DocId, Acl>>();
  private Map<GroupPrincipal, Collection<Principal>> groups
      = new TreeMap<GroupPrincipal, Collection<Principal>>();

  @Override
  public DocId pushDocIds(Iterable<DocId> docIds,
                          ExceptionHandler handler)
      throws InterruptedException {
    List<Record> records = new ArrayList<Record>();
    for (DocId docId : docIds) {
      records.add(new Record.Builder(docId).build());
    }
    Record record = pushRecords(records, handler);
    return record == null ? null : record.getDocId();
  }

  @Override
  public Record pushRecords(Iterable<Record> records,
                            ExceptionHandler handler)
      throws InterruptedException {
    for (Record record : records) {
      this.records.add(record);
    }
    return null;
  }

  @Override
  public GroupPrincipal pushGroupDefinitions(
      Map<GroupPrincipal, ? extends Collection<Principal>> defs,
      boolean caseSensitive, ExceptionHandler handler)
      throws InterruptedException {
    for (GroupPrincipal key : defs.keySet()) {
      groups.put(key, Collections.unmodifiableList(
          new ArrayList<Principal>(defs.get(key))));
    }
    return null;
  }

  public List<Record> getRecords() {
    return Collections.unmodifiableList(records);
  }
  
  public List<Map<DocId, Acl>> getNamedResources() {
    return namedResouces;
  }

  public Map<GroupPrincipal, Collection<Principal>> getGroups() {
    return Collections.unmodifiableMap(groups);
  }

  public void reset() {
    records.clear();
    namedResouces.clear();
  }

  @Override
  public DocId pushNamedResources(Map<DocId, Acl> resources)
      throws InterruptedException {
    return pushNamedResources(resources, null);
  }

  @Override
  public DocId pushNamedResources(Map<DocId, Acl> resources,
                                  ExceptionHandler hanlder)
      throws InterruptedException {
    namedResouces.add(Collections.unmodifiableMap(
        new TreeMap<DocId, Acl>(resources)));
    return null;
  }
}