com.google.common.primitives.Platform Maven / Gradle / Ivy
/*
* Copyright (C) 2019 The Guava Authors
*
* 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.google.common.primitives;
import static com.google.common.base.Strings.lenientFormat;
import static java.lang.Boolean.parseBoolean;
import com.google.common.annotations.GwtCompatible;
/** Methods factored out so that they can be emulated differently in GWT. */
@GwtCompatible(emulated = true)
final class Platform {
private static final java.util.logging.Logger logger =
java.util.logging.Logger.getLogger(Platform.class.getName());
private static final String GWT_RPC_PROPERTY_NAME = "guava.gwt.emergency_reenable_rpc";
static void checkGwtRpcEnabled() {
if (!parseBoolean(System.getProperty(GWT_RPC_PROPERTY_NAME, "true"))) {
throw new UnsupportedOperationException(
lenientFormat(
"We are removing GWT-RPC support for Guava types. You can temporarily reenable"
+ " support by setting the system property %s to true. For more about system"
+ " properties, see %s. For more about Guava's GWT-RPC support, see %s.",
GWT_RPC_PROPERTY_NAME,
"https://stackoverflow.com/q/5189914/28465",
"https://groups.google.com/d/msg/guava-announce/zHZTFg7YF3o/rQNnwdHeEwAJ"));
}
logger.log(
java.util.logging.Level.WARNING,
"In January 2020, we will remove GWT-RPC support for Guava types. You are seeing this"
+ " warning because you are sending a Guava type over GWT-RPC, which will break. You"
+ " can identify which type by looking at the class name in the attached stack trace.",
new Throwable());
}
private Platform() {}
}