/**
* Validates that configuration is correct with regards to push networks limitations or
* implementation, etc.
*/
private SenderConfiguration validateAndSanitizeConfiguration(
VariantType type, SenderConfiguration configuration) {
switch (type) {
case ANDROID:
if (configuration.batchSize() > 1000) {
logger.warning(
String.format(
"Sender configuration -D%s=%s is invalid: at most 1000 tokens can be submitted to GCM in one batch",
getSystemPropertyName(type, ConfigurationProperty.batchSize),
configuration.batchSize()));
configuration.setBatchSize(1000);
}
break;
default:
break;
}
return configuration;
}
/**
* Loads and stores configuration for specific Push Networks.
*
* <p>UPS provides sensible defaults specific to each Push Network and its limitations.
*
* <p>Configuration can be changed by overriding system properties, e.g. via as VM args.
*
* <p>Example: In order to change the configuration of {@link SenderConfiguration#batchSize()} for
* APNs (iOS) service, one can provide following system property:
* <tt>-Daerogear.ios.batchSize=12000</tt>.
*
* <p>The name of the network (<tt>aerogear.<network>.<property></tt>) is specified by
* {@link VariantType#getTypeName()}.
*
* <p>Look at {@link SenderConfiguration} for more details about available configurations.
*
* @see SenderConfiguration
*/
public class SenderConfigurationProvider {
private final AeroGearLogger logger =
AeroGearLogger.getInstance(SenderConfigurationProvider.class);
@Produces
@ApplicationScoped
@SenderType(VariantType.ANDROID)
public SenderConfiguration produceAndroidConfiguration() {
return loadConfigurationFor(VariantType.ANDROID, new SenderConfiguration(10, 1000));
}
@Produces
@ApplicationScoped
@SenderType(VariantType.ADM)
public SenderConfiguration produceAdmConfiguration() {
return loadConfigurationFor(VariantType.ADM, new SenderConfiguration(10, 1000));
}
@Produces
@ApplicationScoped
@SenderType(VariantType.IOS)
public SenderConfiguration produceIosConfiguration() {
return loadConfigurationFor(VariantType.IOS, new SenderConfiguration(3, 10000));
}
@Produces
@ApplicationScoped
@SenderType(VariantType.SIMPLE_PUSH)
public SenderConfiguration produceSimplePushConfiguration() {
return loadConfigurationFor(VariantType.SIMPLE_PUSH, new SenderConfiguration(10, 1000));
}
@Produces
@ApplicationScoped
@SenderType(VariantType.WINDOWS_MPNS)
public SenderConfiguration produceWindowsMpnsConfiguration() {
return loadConfigurationFor(VariantType.WINDOWS_MPNS, new SenderConfiguration(10, 1000));
}
@Produces
@ApplicationScoped
@SenderType(VariantType.WINDOWS_WNS)
public SenderConfiguration produceWindowsWnsConfiguration() {
return loadConfigurationFor(VariantType.WINDOWS_WNS, new SenderConfiguration(10, 1000));
}
private SenderConfiguration loadConfigurationFor(
VariantType type, SenderConfiguration defaultConfiguration) {
return validateAndSanitizeConfiguration(
type,
new SenderConfiguration(
getProperty(
type,
ConfigurationProperty.batchesToLoad,
defaultConfiguration.batchesToLoad(),
Integer.class),
getProperty(
type,
ConfigurationProperty.batchSize,
defaultConfiguration.batchSize(),
Integer.class)));
}
/**
* Validates that configuration is correct with regards to push networks limitations or
* implementation, etc.
*/
private SenderConfiguration validateAndSanitizeConfiguration(
VariantType type, SenderConfiguration configuration) {
switch (type) {
case ANDROID:
if (configuration.batchSize() > 1000) {
logger.warning(
String.format(
"Sender configuration -D%s=%s is invalid: at most 1000 tokens can be submitted to GCM in one batch",
getSystemPropertyName(type, ConfigurationProperty.batchSize),
configuration.batchSize()));
configuration.setBatchSize(1000);
}
break;
default:
break;
}
return configuration;
}
@SuppressWarnings("unchecked")
private <T> T getProperty(
VariantType type, ConfigurationProperty property, T defaultValue, Class<T> expectedType) {
String systemPropertyName = getSystemPropertyName(type, property);
if (expectedType == String.class) {
return (T) ConfigurationUtils.tryGetProperty(systemPropertyName, (String) defaultValue);
} else if (expectedType == Integer.class) {
return (T)
ConfigurationUtils.tryGetIntegerProperty(systemPropertyName, (Integer) defaultValue);
} else {
throw new IllegalStateException("Unexpected type: " + expectedType);
}
}
private String getSystemPropertyName(VariantType type, ConfigurationProperty property) {
return String.format("aerogear.%s.%s", type.getTypeName(), property.toString());
}
/**
* Configuration properties are matching the properties of {@link SenderConfiguration} fields /
* accessors. The enum members intentionally use camel-case to avoid need for name conversion.
*/
private static enum ConfigurationProperty {
batchesToLoad,
batchSize;
}
}
