/*
* Copyright 2010-2013 Ning, Inc.
* Copyright 2014-2016 Groupon, Inc
* Copyright 2014-2016 The Billing Project, LLC
*
* The Billing Project licenses this file to you 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.killbill.billing.entitlement.block;
import java.util.List;
import java.util.UUID;
import javax.annotation.Nullable;
import org.joda.time.DateTime;
import org.killbill.billing.ErrorCode;
import org.killbill.billing.account.api.Account;
import org.killbill.billing.callcontext.InternalTenantContext;
import org.killbill.billing.entitlement.api.Blockable;
import org.killbill.billing.entitlement.api.BlockingApiException;
import org.killbill.billing.entitlement.api.BlockingState;
import org.killbill.billing.entitlement.api.BlockingStateType;
import org.killbill.billing.entitlement.dao.BlockingStateDao;
import org.killbill.billing.subscription.api.SubscriptionBase;
import org.killbill.billing.subscription.api.SubscriptionBaseInternalApi;
import org.killbill.billing.subscription.api.user.SubscriptionBaseApiException;
import org.killbill.billing.subscription.api.user.SubscriptionBaseBundle;
import com.google.common.collect.ImmutableList;
import com.google.inject.Inject;
public class DefaultBlockingChecker implements BlockingChecker {
public static class DefaultBlockingAggregator implements BlockingAggregator {
private boolean blockChange = false;
private boolean blockEntitlement = false;
private boolean blockBilling = false;
public void or(final BlockingState state) {
if (state == null) {
return;
}
blockChange = blockChange || state.isBlockChange();
blockEntitlement = blockEntitlement || state.isBlockEntitlement();
blockBilling = blockBilling || state.isBlockBilling();
}
public void or(final DefaultBlockingAggregator state) {
if (state == null) {
return;
}
blockChange = blockChange || state.isBlockChange();
blockEntitlement = blockEntitlement || state.isBlockEntitlement();
blockBilling = blockBilling || state.isBlockBilling();
}
@Override
public boolean isBlockChange() {
return blockChange;
}
@Override
public boolean isBlockEntitlement() {
return blockEntitlement;
}
@Override
public boolean isBlockBilling() {
return blockBilling;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("DefaultBlockingAggregator{");
sb.append("blockChange=").append(blockChange);
sb.append(", blockEntitlement=").append(blockEntitlement);
sb.append(", blockBilling=").append(blockBilling);
sb.append('}');
return sb.toString();
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (!(o instanceof DefaultBlockingAggregator)) {
return false;
}
final DefaultBlockingAggregator that = (DefaultBlockingAggregator) o;
if (blockBilling != that.blockBilling) {
return false;
}
if (blockChange != that.blockChange) {
return false;
}
if (blockEntitlement != that.blockEntitlement) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = (blockChange ? 1 : 0);
result = 31 * result + (blockEntitlement ? 1 : 0);
result = 31 * result + (blockBilling ? 1 : 0);
return result;
}
}
private final SubscriptionBaseInternalApi subscriptionApi;
private final BlockingStateDao dao;
private final StatelessBlockingChecker statelessBlockingChecker = new StatelessBlockingChecker();
@Inject
public DefaultBlockingChecker(final SubscriptionBaseInternalApi subscriptionApi, final BlockingStateDao dao) {
this.subscriptionApi = subscriptionApi;
this.dao = dao;
}
private DefaultBlockingAggregator getBlockedStateSubscriptionId(final UUID subscriptionId, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
final SubscriptionBase subscription;
try {
subscription = subscriptionApi.getSubscriptionFromId(subscriptionId, context);
return getBlockedStateSubscription(subscription, upToDate, context);
} catch (final SubscriptionBaseApiException e) {
throw new BlockingApiException(e, ErrorCode.fromCode(e.getCode()));
}
}
private DefaultBlockingAggregator getBlockedStateSubscription(final SubscriptionBase subscription, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
final DefaultBlockingAggregator result = new DefaultBlockingAggregator();
if (subscription != null) {
final DefaultBlockingAggregator subscriptionState = getBlockedStateForId(subscription.getId(), BlockingStateType.SUBSCRIPTION, upToDate, context);
if (subscriptionState != null) {
result.or(subscriptionState);
}
if (subscription.getBundleId() != null) {
// Recursive call to also fetch account state
result.or(getBlockedStateBundleId(subscription.getBundleId(), upToDate, context));
}
}
return result;
}
private DefaultBlockingAggregator getBlockedStateBundleId(final UUID bundleId, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
final SubscriptionBaseBundle bundle;
try {
bundle = subscriptionApi.getBundleFromId(bundleId, context);
return getBlockedStateBundle(bundle, upToDate, context);
} catch (final SubscriptionBaseApiException e) {
throw new BlockingApiException(e, ErrorCode.fromCode(e.getCode()));
}
}
private DefaultBlockingAggregator getBlockedStateBundle(final SubscriptionBaseBundle bundle, final DateTime upToDate, final InternalTenantContext context) {
final DefaultBlockingAggregator result = getBlockedStateAccountId(bundle.getAccountId(), upToDate, context);
final DefaultBlockingAggregator bundleState = getBlockedStateForId(bundle.getId(), BlockingStateType.SUBSCRIPTION_BUNDLE, upToDate, context);
if (bundleState != null) {
result.or(bundleState);
}
return result;
}
private DefaultBlockingAggregator getBlockedStateAccount(final Account account, final DateTime upToDate, final InternalTenantContext context) {
if (account != null) {
return getBlockedStateForId(account.getId(), BlockingStateType.ACCOUNT, upToDate, context);
}
return new DefaultBlockingAggregator();
}
private DefaultBlockingAggregator getBlockedStateAccountId(final UUID accountId, final DateTime upToDate, final InternalTenantContext context) {
return getBlockedStateForId(accountId, BlockingStateType.ACCOUNT, upToDate, context);
}
private DefaultBlockingAggregator getBlockedStateForId(@Nullable final UUID blockableId, final BlockingStateType blockingStateType, final DateTime upToDate, final InternalTenantContext context) {
// Last states across services
final List<BlockingState> blockableState;
if (blockableId != null) {
blockableState = dao.getBlockingState(blockableId, blockingStateType, upToDate, context);
} else {
blockableState = ImmutableList.<BlockingState>of();
}
return statelessBlockingChecker.getBlockedState(blockableState);
}
@Override
public BlockingAggregator getBlockedStatus(final UUID blockableId, final BlockingStateType type, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
if (type == BlockingStateType.SUBSCRIPTION) {
return getBlockedStateSubscriptionId(blockableId, upToDate, context);
} else if (type == BlockingStateType.SUBSCRIPTION_BUNDLE) {
return getBlockedStateBundleId(blockableId, upToDate, context);
} else { // BlockingStateType.ACCOUNT {
return getBlockedStateAccountId(blockableId, upToDate, context);
}
}
@Override
public BlockingAggregator getBlockedStatus(final List<BlockingState> accountEntitlementStates, final List<BlockingState> bundleEntitlementStates, final List<BlockingState> subscriptionEntitlementStates, final InternalTenantContext internalTenantContext) {
return statelessBlockingChecker.getBlockedState(accountEntitlementStates, bundleEntitlementStates, subscriptionEntitlementStates);
}
@Override
public void checkBlockedChange(final Blockable blockable, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
if (blockable instanceof SubscriptionBase && getBlockedStateSubscription((SubscriptionBase) blockable, upToDate, context).isBlockChange()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_CHANGE, TYPE_SUBSCRIPTION, blockable.getId().toString());
} else if (blockable instanceof SubscriptionBaseBundle && getBlockedStateBundle((SubscriptionBaseBundle) blockable, upToDate, context).isBlockChange()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_CHANGE, TYPE_BUNDLE, blockable.getId().toString());
} else if (blockable instanceof Account && getBlockedStateAccount((Account) blockable, upToDate, context).isBlockChange()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_CHANGE, TYPE_ACCOUNT, blockable.getId().toString());
}
}
@Override
public void checkBlockedEntitlement(final Blockable blockable, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
if (blockable instanceof SubscriptionBase && getBlockedStateSubscription((SubscriptionBase) blockable, upToDate, context).isBlockEntitlement()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_ENTITLEMENT, TYPE_SUBSCRIPTION, blockable.getId().toString());
} else if (blockable instanceof SubscriptionBaseBundle && getBlockedStateBundle((SubscriptionBaseBundle) blockable, upToDate, context).isBlockEntitlement()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_ENTITLEMENT, TYPE_BUNDLE, blockable.getId().toString());
} else if (blockable instanceof Account && getBlockedStateAccount((Account) blockable, upToDate, context).isBlockEntitlement()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_ENTITLEMENT, TYPE_ACCOUNT, blockable.getId().toString());
}
}
@Override
public void checkBlockedBilling(final Blockable blockable, final DateTime upToDate, final InternalTenantContext context) throws BlockingApiException {
if (blockable instanceof SubscriptionBase && getBlockedStateSubscription((SubscriptionBase) blockable, upToDate, context).isBlockBilling()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_BILLING, TYPE_SUBSCRIPTION, blockable.getId().toString());
} else if (blockable instanceof SubscriptionBaseBundle && getBlockedStateBundle((SubscriptionBaseBundle) blockable, upToDate, context).isBlockBilling()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_BILLING, TYPE_BUNDLE, blockable.getId().toString());
} else if (blockable instanceof Account && getBlockedStateAccount((Account) blockable, upToDate, context).isBlockBilling()) {
throw new BlockingApiException(ErrorCode.BLOCK_BLOCKED_ACTION, ACTION_BILLING, TYPE_ACCOUNT, blockable.getId().toString());
}
}
}