/*
* Copyright 2010-2013 Ning, Inc.
* Copyright 2014-2015 Groupon, Inc
* Copyright 2014-2015 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.jaxrs.resources;
import java.io.IOException;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.annotation.Nullable;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.StreamingOutput;
import javax.ws.rs.core.UriInfo;
import org.joda.time.LocalDate;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.killbill.billing.ErrorCode;
import org.killbill.billing.ObjectType;
import org.killbill.billing.account.api.Account;
import org.killbill.billing.account.api.AccountApiException;
import org.killbill.billing.account.api.AccountUserApi;
import org.killbill.billing.entitlement.api.BlockingState;
import org.killbill.billing.entitlement.api.BlockingStateType;
import org.killbill.billing.entitlement.api.EntitlementApiException;
import org.killbill.billing.entitlement.api.SubscriptionApi;
import org.killbill.billing.entitlement.api.SubscriptionApiException;
import org.killbill.billing.invoice.api.InvoicePayment;
import org.killbill.billing.invoice.api.InvoicePaymentType;
import org.killbill.billing.jaxrs.json.BillingExceptionJson;
import org.killbill.billing.jaxrs.json.BillingExceptionJson.StackTraceElementJson;
import org.killbill.billing.jaxrs.json.BlockingStateJson;
import org.killbill.billing.jaxrs.json.CustomFieldJson;
import org.killbill.billing.jaxrs.json.JsonBase;
import org.killbill.billing.jaxrs.json.PluginPropertyJson;
import org.killbill.billing.jaxrs.json.TagJson;
import org.killbill.billing.jaxrs.util.Context;
import org.killbill.billing.jaxrs.util.JaxrsUriBuilder;
import org.killbill.billing.junction.DefaultBlockingState;
import org.killbill.billing.payment.api.Payment;
import org.killbill.billing.payment.api.PaymentApi;
import org.killbill.billing.payment.api.PaymentApiException;
import org.killbill.billing.payment.api.PaymentMethod;
import org.killbill.billing.payment.api.PaymentOptions;
import org.killbill.billing.payment.api.PaymentTransaction;
import org.killbill.billing.payment.api.PluginProperty;
import org.killbill.billing.payment.api.TransactionStatus;
import org.killbill.billing.payment.api.TransactionType;
import org.killbill.billing.util.api.AuditUserApi;
import org.killbill.billing.util.api.CustomFieldApiException;
import org.killbill.billing.util.api.CustomFieldUserApi;
import org.killbill.billing.util.api.TagApiException;
import org.killbill.billing.util.api.TagDefinitionApiException;
import org.killbill.billing.util.api.TagUserApi;
import org.killbill.billing.util.audit.AccountAuditLogsForObjectType;
import org.killbill.billing.util.audit.AuditLog;
import org.killbill.billing.util.callcontext.CallContext;
import org.killbill.billing.util.callcontext.TenantContext;
import org.killbill.billing.util.customfield.CustomField;
import org.killbill.billing.util.customfield.StringCustomField;
import org.killbill.billing.util.entity.Entity;
import org.killbill.billing.util.entity.Pagination;
import org.killbill.billing.util.jackson.ObjectMapper;
import org.killbill.billing.util.tag.Tag;
import org.killbill.billing.util.tag.TagDefinition;
import org.killbill.clock.Clock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
public abstract class JaxRsResourceBase implements JaxrsResource {
static final Logger log = LoggerFactory.getLogger(JaxRsResourceBase.class);
// Catalog API don't quite support multiple catalogs per tenant
protected static final String catalogName = "unused";
protected static final ObjectMapper mapper = new ObjectMapper();
protected final JaxrsUriBuilder uriBuilder;
protected final TagUserApi tagUserApi;
protected final CustomFieldUserApi customFieldUserApi;
protected final AuditUserApi auditUserApi;
protected final AccountUserApi accountUserApi;
protected final PaymentApi paymentApi;
protected final SubscriptionApi subscriptionApi;
protected final Context context;
protected final Clock clock;
protected final DateTimeFormatter DATE_TIME_FORMATTER = ISODateTimeFormat.dateTimeParser();
protected final DateTimeFormatter LOCAL_DATE_FORMATTER = DateTimeFormat.forPattern("yyyy-MM-dd");
public JaxRsResourceBase(final JaxrsUriBuilder uriBuilder,
final TagUserApi tagUserApi,
final CustomFieldUserApi customFieldUserApi,
final AuditUserApi auditUserApi,
final AccountUserApi accountUserApi,
final PaymentApi paymentApi,
final SubscriptionApi subscriptionApi,
final Clock clock,
final Context context) {
this.uriBuilder = uriBuilder;
this.tagUserApi = tagUserApi;
this.customFieldUserApi = customFieldUserApi;
this.auditUserApi = auditUserApi;
this.accountUserApi = accountUserApi;
this.paymentApi = paymentApi;
this.subscriptionApi = subscriptionApi;
this.clock = clock;
this.context = context;
}
protected ObjectType getObjectType() {
return null;
}
public Response addBlockingState(final BlockingStateJson json,
final String id,
final BlockingStateType type,
final String requestedDate,
final List<String> pluginPropertiesString,
final String createdBy,
final String reason,
final String comment,
final HttpServletRequest request) throws SubscriptionApiException, EntitlementApiException, AccountApiException {
final Iterable<PluginProperty> pluginProperties = extractPluginProperties(pluginPropertiesString);
final CallContext callContext = context.createContext(createdBy, reason, comment, request);
final UUID blockableId = UUID.fromString(id);
final boolean isBlockBilling = (json.isBlockBilling() != null && json.isBlockBilling());
final boolean isBlockEntitlement = (json.isBlockEntitlement() != null && json.isBlockEntitlement());
final boolean isBlockChange = (json.isBlockChange() != null && json.isBlockChange());
final LocalDate resolvedRequestedDate = toLocalDate(requestedDate);
final BlockingState input = new DefaultBlockingState(blockableId, type, json.getStateName(), json.getService(), isBlockChange, isBlockEntitlement, isBlockBilling, null);
subscriptionApi.addBlockingState(input, resolvedRequestedDate, pluginProperties, callContext);
return Response.status(Status.OK).build();
}
protected Response getTags(final UUID accountId, final UUID taggedObjectId, final AuditMode auditMode, final boolean includeDeleted, final TenantContext context) throws TagDefinitionApiException {
final List<Tag> tags = tagUserApi.getTagsForObject(taggedObjectId, getObjectType(), includeDeleted, context);
return createTagResponse(accountId, tags, auditMode, context);
}
protected Response createTagResponse(final UUID accountId, final List<Tag> tags, final AuditMode auditMode, final TenantContext context) throws TagDefinitionApiException {
final AccountAuditLogsForObjectType tagsAuditLogs = auditUserApi.getAccountAuditLogs(accountId, ObjectType.TAG, auditMode.getLevel(), context);
final Map<UUID, TagDefinition> tagDefinitionsCache = new HashMap<UUID, TagDefinition>();
final Collection<TagJson> result = new LinkedList<TagJson>();
for (final Tag tag : tags) {
if (tagDefinitionsCache.get(tag.getTagDefinitionId()) == null) {
tagDefinitionsCache.put(tag.getTagDefinitionId(), tagUserApi.getTagDefinition(tag.getTagDefinitionId(), context));
}
final TagDefinition tagDefinition = tagDefinitionsCache.get(tag.getTagDefinitionId());
final List<AuditLog> auditLogs = tagsAuditLogs.getAuditLogs(tag.getId());
result.add(new TagJson(tag, tagDefinition, auditLogs));
}
return Response.status(Response.Status.OK).entity(result).build();
}
protected Response createTags(final UUID id,
final String tagList,
final UriInfo uriInfo,
final CallContext context,
final HttpServletRequest request) throws TagApiException {
final Collection<UUID> input = getTagDefinitionUUIDs(tagList);
tagUserApi.addTags(id, getObjectType(), input, context);
// TODO This will always return 201, even if some (or all) tags already existed (in which case we don't do anything)
return uriBuilder.buildResponse(uriInfo, this.getClass(), "getTags", id, request);
}
protected Collection<UUID> getTagDefinitionUUIDs(final String tagList) {
final String[] tagParts = tagList.split(",\\s*");
return Collections2.transform(ImmutableList.copyOf(tagParts), new Function<String, UUID>() {
@Override
public UUID apply(final String input) {
return UUID.fromString(input);
}
});
}
protected Response deleteTags(final UUID id,
final String tagList,
final CallContext context) throws TagApiException {
final Collection<UUID> input = getTagDefinitionUUIDs(tagList);
tagUserApi.removeTags(id, getObjectType(), input, context);
return Response.status(Response.Status.OK).build();
}
protected Response getCustomFields(final UUID id, final AuditMode auditMode, final TenantContext context) {
final List<CustomField> fields = customFieldUserApi.getCustomFieldsForObject(id, getObjectType(), context);
final List<CustomFieldJson> result = new LinkedList<CustomFieldJson>();
for (final CustomField cur : fields) {
// TODO PIERRE - Bulk API
final List<AuditLog> auditLogs = auditUserApi.getAuditLogs(cur.getId(), ObjectType.CUSTOM_FIELD, auditMode.getLevel(), context);
result.add(new CustomFieldJson(cur, auditLogs));
}
return Response.status(Response.Status.OK).entity(result).build();
}
protected Response createCustomFields(final UUID id,
final List<CustomFieldJson> customFields,
final CallContext context,
final UriInfo uriInfo,
final HttpServletRequest request) throws CustomFieldApiException {
final LinkedList<CustomField> input = new LinkedList<CustomField>();
for (final CustomFieldJson cur : customFields) {
verifyNonNullOrEmpty(cur.getName(), "CustomFieldJson name needs to be set");
verifyNonNullOrEmpty(cur.getValue(), "CustomFieldJson value needs to be set");
input.add(new StringCustomField(cur.getName(), cur.getValue(), getObjectType(), id, context.getCreatedDate()));
}
customFieldUserApi.addCustomFields(input, context);
return uriBuilder.buildResponse(uriInfo, this.getClass(), "getCustomFields", id, request);
}
/**
* @param id the if of the object for which the custom fields apply
* @param customFieldList a comma separated list of custom field ids or null if they should all be removed
* @param context the context
* @return
* @throws CustomFieldApiException
*/
protected Response deleteCustomFields(final UUID id,
@Nullable final String customFieldList,
final CallContext context) throws CustomFieldApiException {
// Retrieve all the custom fields for the object
final List<CustomField> fields = customFieldUserApi.getCustomFieldsForObject(id, getObjectType(), context);
final String[] requestedIds = customFieldList != null ? customFieldList.split("\\s*,\\s*") : null;
// Filter the proposed list to only keep the one that exist and indeed match our object
final Iterable inputIterable = Iterables.filter(fields, new Predicate<CustomField>() {
@Override
public boolean apply(final CustomField input) {
if (customFieldList == null) {
return true;
}
for (final String cur : requestedIds) {
final UUID curId = UUID.fromString(cur);
if (input.getId().equals(curId)) {
return true;
}
}
return false;
}
});
if (inputIterable.iterator().hasNext()) {
final List<CustomField> input = ImmutableList.<CustomField>copyOf(inputIterable);
customFieldUserApi.removeCustomFields(input, context);
}
return Response.status(Response.Status.OK).build();
}
protected <E extends Entity, J extends JsonBase> Response buildStreamingPaginationResponse(final Pagination<E> entities,
final Function<E, J> toJson,
final URI nextPageUri) {
final StreamingOutput json = new StreamingOutput() {
@Override
public void write(final OutputStream output) throws IOException, WebApplicationException {
final Iterator<E> iterator = entities.iterator();
try {
final JsonGenerator generator = mapper.getFactory().createGenerator(output);
generator.configure(JsonGenerator.Feature.AUTO_CLOSE_TARGET, false);
generator.writeStartArray();
while (iterator.hasNext()) {
final E entity = iterator.next();
final J asJson = toJson.apply(entity);
if (asJson != null) {
generator.writeObject(asJson);
}
}
generator.writeEndArray();
generator.close();
} finally {
// In case the client goes away (IOException), make sure to close the underlying DB connection
while (iterator.hasNext()) {
iterator.next();
}
}
}
};
return Response.status(Status.OK)
.entity(json)
.header(HDR_PAGINATION_CURRENT_OFFSET, entities.getCurrentOffset())
.header(HDR_PAGINATION_NEXT_OFFSET, entities.getNextOffset())
.header(HDR_PAGINATION_TOTAL_NB_RECORDS, entities.getTotalNbRecords())
.header(HDR_PAGINATION_MAX_NB_RECORDS, entities.getMaxNbRecords())
.header(HDR_PAGINATION_NEXT_PAGE_URI, nextPageUri)
.build();
}
protected void validatePaymentMethodForAccount(final UUID accountId, final UUID paymentMethodId, final CallContext callContext) throws PaymentApiException {
if (paymentMethodId == null) {
throw new PaymentApiException(ErrorCode.PAYMENT_NO_DEFAULT_PAYMENT_METHOD, accountId);
}
final PaymentMethod paymentMethod = paymentApi.getPaymentMethodById(paymentMethodId, false, false, ImmutableList.<PluginProperty>of(), callContext);
if (!paymentMethod.getAccountId().equals(accountId)) {
throw new PaymentApiException(ErrorCode.PAYMENT_NO_SUCH_PAYMENT_METHOD, paymentMethodId);
}
}
protected PaymentTransaction lookupPendingOrSuccessTransaction(final Payment initialPayment, @Nullable final String transactionId, @Nullable final String transactionExternalKey, @Nullable final String transactionType) throws PaymentApiException {
final Collection<PaymentTransaction> pendingTransaction = Collections2.filter(initialPayment.getTransactions(), new Predicate<PaymentTransaction>() {
@Override
public boolean apply(final PaymentTransaction input) {
if (input.getTransactionStatus() != TransactionStatus.PENDING && input.getTransactionStatus() != TransactionStatus.SUCCESS) {
return false;
}
if (transactionId != null && !transactionId.equals(input.getId().toString())) {
return false;
}
if (transactionExternalKey != null && !transactionExternalKey.equals(input.getExternalKey())) {
return false;
}
if (transactionType != null && !transactionType.equals(input.getTransactionType().name())) {
return false;
}
//
// If we were given a transactionId or a transactionExternalKey or a transactionType we checked there was a match;
// In the worst case, if we were given nothing, we return the PENDING transaction for that payment
//
return true;
}
});
switch (pendingTransaction.size()) {
// Nothing: invalid input...
case 0:
final String parameterType;
final String parameterValue;
if (transactionId != null) {
parameterType = "transactionId";
parameterValue = transactionId;
} else if (transactionExternalKey != null) {
parameterType = "transactionExternalKey";
parameterValue = transactionExternalKey;
} else if (transactionType != null) {
parameterType = "transactionType";
parameterValue = transactionType;
} else {
parameterType = "paymentId";
parameterValue = initialPayment.getId().toString();
}
throw new PaymentApiException(ErrorCode.PAYMENT_INVALID_PARAMETER, parameterType, parameterValue);
case 1:
return pendingTransaction.iterator().next();
default:
throw new PaymentApiException(ErrorCode.PAYMENT_INTERNAL_ERROR, String.format("Illegal payment state: Found multiple PENDING payment transactions for paymentId='%s'", initialPayment.getId()));
}
}
protected LocalDate toLocalDateDefaultToday(final UUID accountId, @Nullable final String inputDate, final TenantContext context) throws AccountApiException {
final Account account = accountId != null ? accountUserApi.getAccountById(accountId, context) : null;
return toLocalDateDefaultToday(account, inputDate, context);
}
protected LocalDate toLocalDateDefaultToday(final Account account, @Nullable final String inputDate, final TenantContext context) {
// TODO Switch to cached normalized timezone when available
return MoreObjects.firstNonNull(toLocalDate(inputDate), clock.getToday(account.getTimeZone()));
}
// API for subscription and invoice generation: keep null, the lower layers will default to now()
protected LocalDate toLocalDate(@Nullable final String inputDate) {
return inputDate == null || inputDate.isEmpty() ? null : LocalDate.parse(inputDate, LOCAL_DATE_FORMATTER);
}
protected Iterable<PluginProperty> extractPluginProperties(@Nullable final Iterable<PluginPropertyJson> pluginProperties) {
return pluginProperties != null ?
Iterables.<PluginPropertyJson, PluginProperty>transform(pluginProperties,
new Function<PluginPropertyJson, PluginProperty>() {
@Override
public PluginProperty apply(final PluginPropertyJson pluginPropertyJson) {
return pluginPropertyJson.toPluginProperty();
}
}
) :
ImmutableList.<PluginProperty>of();
}
protected Iterable<PluginProperty> extractPluginProperties(@Nullable final Iterable<String> pluginProperties, final PluginProperty... additionalProperties) {
final Collection<PluginProperty> properties = new LinkedList<PluginProperty>();
if (pluginProperties == null) {
return properties;
}
for (final String pluginProperty : pluginProperties) {
final List<String> property = ImmutableList.<String>copyOf(pluginProperty.split("="));
// Skip entries for which there is no value
if (property.size() == 1) {
continue;
}
final String key = property.get(0);
// Should we URL decode the value?
String value = Joiner.on("=").join(property.subList(1, property.size()));
if (pluginProperty.endsWith("=")) {
value += "=";
}
properties.add(new PluginProperty(key, value, false));
}
for (final PluginProperty cur : additionalProperties) {
properties.add(cur);
}
return properties;
}
protected Payment createPurchaseForInvoice(final Account account, final UUID invoiceId, final BigDecimal amountToPay, final UUID paymentMethodId, final Boolean externalPayment, final String paymentExternalKey, final String transactionExternalKey, final Iterable<PluginProperty> pluginProperties, final CallContext callContext) throws PaymentApiException {
final List<PluginProperty> properties = new ArrayList<PluginProperty>();
final Iterator<PluginProperty> pluginPropertyIterator = pluginProperties.iterator();
while (pluginPropertyIterator.hasNext()) {
properties.add(pluginPropertyIterator.next());
}
final PluginProperty invoiceProperty = new PluginProperty("IPCD_INVOICE_ID" /* InvoicePaymentControlPluginApi.PROP_IPCD_INVOICE_ID (contract with plugin) */,
invoiceId.toString(), false);
properties.add(invoiceProperty);
try {
return paymentApi.createPurchaseWithPaymentControl(account, paymentMethodId, null, amountToPay, account.getCurrency(), paymentExternalKey, transactionExternalKey,
properties, createInvoicePaymentControlPluginApiPaymentOptions(externalPayment), callContext);
} catch (final PaymentApiException e) {
if (e.getCode() == ErrorCode.PAYMENT_PLUGIN_EXCEPTION.getCode() &&
e.getMessage().contains("Aborted Payment for invoice")) {
return null;
}
throw e;
}
}
protected PaymentOptions createInvoicePaymentControlPluginApiPaymentOptions(final boolean isExternalPayment) {
return createControlPluginApiPaymentOptions(isExternalPayment, ImmutableList.<String>of("__INVOICE_PAYMENT_CONTROL_PLUGIN__"));
}
protected PaymentOptions createControlPluginApiPaymentOptions(@Nullable final List<String> paymentControlPluginNames) {
return createControlPluginApiPaymentOptions(false, paymentControlPluginNames);
}
protected PaymentOptions createControlPluginApiPaymentOptions(final boolean isExternalPayment, final List<String> paymentControlPluginNames) {
return new PaymentOptions() {
@Override
public boolean isExternalPayment() {
return isExternalPayment;
}
@Override
public List<String> getPaymentControlPluginNames() {
// DefaultPaymentApi will add the default configured ones to this list
return paymentControlPluginNames;
}
};
}
public static Iterable<PaymentTransaction> getPaymentTransactions(final List<Payment> payments, final TransactionType transactionType) {
return Iterables.concat(Iterables.transform(payments, new Function<Payment, Iterable<PaymentTransaction>>() {
@Override
public Iterable<PaymentTransaction> apply(final Payment input) {
return Iterables.filter(input.getTransactions(), new Predicate<PaymentTransaction>() {
@Override
public boolean apply(final PaymentTransaction input) {
return input.getTransactionType() == transactionType;
}
});
}
}));
}
public static UUID getInvoiceId(final List<InvoicePayment> invoicePayments, final Payment payment) {
final InvoicePayment invoicePayment = Iterables.tryFind(invoicePayments, new Predicate<InvoicePayment>() {
@Override
public boolean apply(final InvoicePayment input) {
return input.getPaymentId().equals(payment.getId()) && input.getType() == InvoicePaymentType.ATTEMPT;
}
}).orNull();
return invoicePayment != null ? invoicePayment.getInvoiceId() : null;
}
protected void verifyNonNullOrEmpty(final Object... elements) {
Preconditions.checkArgument(elements.length % 2 == 0, "%s should have an even number of elements", Arrays.toString(elements));
for (int i = 0; i < elements.length; i += 2) {
final Object argument = elements[i];
final Object errorMessage = elements[i + 1];
final boolean expression = argument instanceof String ? Strings.emptyToNull((String) argument) != null : argument != null;
Preconditions.checkArgument(expression, errorMessage);
}
}
protected void verifyNonNull(final Object... elements) {
Preconditions.checkArgument(elements.length % 2 == 0, "%s should have an even number of elements", Arrays.toString(elements));
for (int i = 0; i < elements.length; i += 2) {
final Object argument = elements[i];
final Object errorMessage = elements[i + 1];
final boolean expression = argument != null;
Preconditions.checkArgument(expression, errorMessage);
}
}
protected void verifyNumberOfElements(int actual, int expected, String errorMessage) {
Preconditions.checkArgument(actual == expected, errorMessage);
}
protected void logDeprecationParameterWarningIfNeeded(@Nullable final String deprecatedParam, final String... replacementParams) {
if (deprecatedParam != null) {
log.warn(String.format("Parameter %s is being deprecated: Instead use parameters %s", deprecatedParam, Joiner.on(",").join(replacementParams)));
}
}
protected Response createPaymentResponse(final UriInfo uriInfo, final Payment payment, final TransactionType transactionType, @Nullable final String transactionExternalKey, final HttpServletRequest request) {
final PaymentTransaction createdTransaction = findCreatedTransaction(payment, transactionType, transactionExternalKey);
Preconditions.checkNotNull(createdTransaction, "No transaction of type '%s' found", transactionType);
final ResponseBuilder responseBuilder;
final BillingExceptionJson exception;
switch (createdTransaction.getTransactionStatus()) {
case PENDING:
case SUCCESS:
return uriBuilder.buildResponse(uriInfo, PaymentResource.class, "getPayment", payment.getId(), request);
case PAYMENT_FAILURE:
// 402 - Payment Required
responseBuilder = Response.status(402);
exception = createBillingException(String.format("Payment decline by gateway. Error message: %s", createdTransaction.getGatewayErrorMsg()));
break;
case PAYMENT_SYSTEM_OFF:
// 503 - Service Unavailable
responseBuilder = Response.status(Status.SERVICE_UNAVAILABLE);
exception = createBillingException("Payment system is off.");
break;
case UNKNOWN:
// 503 - Service Unavailable
responseBuilder = Response.status(Status.SERVICE_UNAVAILABLE);
exception = createBillingException("Payment in unknown status, failed to receive gateway response.");
break;
case PLUGIN_FAILURE:
// 502 - Bad Gateway
responseBuilder = Response.status(502);
exception = createBillingException("Failed to submit payment transaction");
break;
default:
// Should never happen
responseBuilder = Response.serverError();
exception = createBillingException("This should never have happened!!!");
}
addExceptionToResponse(responseBuilder, exception);
return uriBuilder.buildResponse(responseBuilder, uriInfo, PaymentResource.class, "getPayment", payment.getId(), request);
}
private void addExceptionToResponse(final ResponseBuilder responseBuilder, final BillingExceptionJson exception) {
try {
responseBuilder.entity(mapper.writeValueAsString(exception)).type(MediaType.APPLICATION_JSON);
} catch (JsonProcessingException e) {
log.warn("Unable to serialize exception", exception);
responseBuilder.entity(e.toString()).type(MediaType.TEXT_PLAIN_TYPE);
}
}
private BillingExceptionJson createBillingException(final String message) {
final BillingExceptionJson exception;
exception = new BillingExceptionJson(PaymentApiException.class.getName(), null, message, null, null, Collections.<StackTraceElementJson>emptyList());
return exception;
}
private PaymentTransaction findCreatedTransaction(final Payment payment, final TransactionType transactionType, @Nullable final String transactionExternalKey) {
// Make sure we start looking from the latest transaction created
final List<PaymentTransaction> reversedTransactions = Lists.reverse(payment.getTransactions());
final Iterable<PaymentTransaction> matchingTransactions = Iterables.filter(reversedTransactions, new Predicate<PaymentTransaction>() {
@Override
public boolean apply(final PaymentTransaction input) {
return input.getTransactionType() == transactionType;
}
});
if (transactionExternalKey != null) {
for (final PaymentTransaction transaction : matchingTransactions) {
if (transactionExternalKey.equals(transaction.getExternalKey())) {
return transaction;
}
}
}
// If nothing is found, return the latest transaction of given type
return Iterables.getFirst(matchingTransactions, null);
}
}