/*
* Copyright 2014 sonaive.com. 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.
*/
package com.sonaive.v2ex.io;
import android.content.ContentProviderOperation;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.sonaive.v2ex.io.model.Member;
import com.sonaive.v2ex.provider.V2exContract;
import com.sonaive.v2ex.sync.api.Api;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import static com.sonaive.v2ex.util.LogUtils.LOGD;
import static com.sonaive.v2ex.util.LogUtils.LOGE;
import static com.sonaive.v2ex.util.LogUtils.makeLogTag;
/**
* Created by liutao on 12/10/14.
*/
public class MembersHandler extends JSONHandler {
private static final String TAG = makeLogTag(MembersHandler.class);
private HashMap<String, Member> mMembers = new HashMap<>();
public MembersHandler(Context context) {
super(context);
}
@Override
public void makeContentProviderOperations(ArrayList<ContentProviderOperation> list) {
Uri uri = V2exContract.Members.CONTENT_URI;
HashMap<String, String> memberHashcodes = loadMemberHashcodes();
HashSet<String> membersToKeep = new HashSet<>();
boolean isIncrementalUpdate = memberHashcodes != null && memberHashcodes.size() > 0;
if (isIncrementalUpdate) {
LOGD(TAG, "Doing incremental update for members.");
} else {
LOGD(TAG, "Doing FULL (non incremental) update for members.");
list.add(ContentProviderOperation.newDelete(uri).build());
}
int updatedMembers = 0;
for (Member member : mMembers.values()) {
String hashCode = member.getImportHashcode();
membersToKeep.add(String.valueOf(member.id));
// add member, if necessary
if (!isIncrementalUpdate || !memberHashcodes.containsKey(String.valueOf(member.id)) ||
!memberHashcodes.get(String.valueOf(member.id)).equals(hashCode)) {
++updatedMembers;
boolean isNew = !isIncrementalUpdate || !memberHashcodes.containsKey(String.valueOf(member.id));
buildMember(isNew, member, list);
}
}
LOGD(TAG, "Members: " + (isIncrementalUpdate ? "INCREMENTAL" : "FULL") + " update. " +
updatedMembers + " to update, New total: " + mMembers.size());
}
private void buildMember(boolean isInsert, Member member,
ArrayList<ContentProviderOperation> list) {
Uri uri = V2exContract.Members.buildMemberUsernameUri(member.username);
ContentProviderOperation.Builder builder;
if (isInsert) {
builder = ContentProviderOperation.newInsert(uri);
} else {
builder = ContentProviderOperation.newUpdate(uri);
}
list.add(builder.withValue(V2exContract.Members.MEMBER_ID, member.id)
.withValue(V2exContract.Members.MEMBER_URL, member.url)
.withValue(V2exContract.Members.MEMBER_USERNAME, member.username)
.withValue(V2exContract.Members.MEMBER_WEBSITE, member.website)
.withValue(V2exContract.Members.MEMBER_TWITTER, member.twitter)
.withValue(V2exContract.Members.MEMBER_PSN, member.psn)
.withValue(V2exContract.Members.MEMBER_GITHUB, member.github)
.withValue(V2exContract.Members.MEMBER_BTC, member.btc)
.withValue(V2exContract.Members.MEMBER_LOCATION, member.location)
.withValue(V2exContract.Members.MEMBER_TAGLINE, member.tagline)
.withValue(V2exContract.Members.MEMBER_BIO, member.bio)
.withValue(V2exContract.Members.MEMBER_AVATAR_MINI, member.avatar_mini)
.withValue(V2exContract.Members.MEMBER_AVATAR_NORMAL, member.avatar_normal)
.withValue(V2exContract.Members.MEMBER_AVATAR_LARGE, member.avatar_large)
.withValue(V2exContract.Members.MEMBER_CREATED, member.created)
.withValue(V2exContract.Members.MEMBER_IMPORT_HASHCODE, member.getImportHashcode())
.build());
}
private void buildDeleteOperation(String memberId, ArrayList<ContentProviderOperation> list) {
Uri thisMemberUri = V2exContract.Members.buildMemberUsernameUri(memberId);
list.add(ContentProviderOperation.newDelete(thisMemberUri).build());
}
@Override
public void process(JsonElement element) {
Member member = new Gson().fromJson(element, Member.class);
mMembers.put(String.valueOf(member.id), member);
}
@Override
public String getBody(Bundle data) {
if (data != null) {
return data.getString(Api.ARG_RESULT);
}
return "";
}
private HashMap<String, String> loadMemberHashcodes() {
Uri uri = V2exContract.Members.CONTENT_URI;
Cursor cursor = mContext.getContentResolver().query(uri, MemberHashcodeQuery.PROJECTION,
null, null, null);
if (cursor == null) {
LOGE(TAG, "Error querying member hashcodes (got null cursor)");
return null;
}
if (cursor.getCount() < 1) {
LOGE(TAG, "Error querying member hashcodes (no records returned)");
cursor.close();
return null;
}
HashMap<String, String> result = new HashMap<String, String>();
while (cursor.moveToNext()) {
String videoId = cursor.getString(MemberHashcodeQuery.MEMBER_ID);
String hashcode = cursor.getString(MemberHashcodeQuery.MEMBER_IMPORT_HASHCODE);
result.put(videoId, hashcode == null ? "" : hashcode);
}
cursor.close();
return result;
}
private interface MemberHashcodeQuery {
String[] PROJECTION = {
V2exContract.Members._ID,
V2exContract.Members.MEMBER_ID,
V2exContract.Members.MEMBER_IMPORT_HASHCODE
};
final int _ID = 0;
final int MEMBER_ID = 1;
final int MEMBER_IMPORT_HASHCODE = 2;
}
}