/*
* Copyright © 2015 Cask Data, Inc.
*
* 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 co.cask.cdap.logging.gateway.handlers;
import co.cask.cdap.logging.read.LogOffset;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
/**
* Handles formatting of log event to send
*/
public final class FormattedLogEvent {
private static final char SEPARATOR = '.';
@SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"})
private final String log;
@SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"})
private final String offset;
public FormattedLogEvent(String log, LogOffset offset) {
this.log = log;
this.offset = formatLogOffset(offset);
}
public static String formatLogOffset(LogOffset logOffset) {
return Joiner.on(SEPARATOR).join(logOffset.getKafkaOffset(), logOffset.getTime());
}
public static LogOffset parseLogOffset(String offsetStr) {
if (offsetStr.isEmpty()) {
return LogOffset.LATEST_OFFSET;
}
Iterable<String> splits = Splitter.on(SEPARATOR).split(offsetStr);
Preconditions.checkArgument(Iterables.size(splits) == 2, "Invalid offset provided: %s", offsetStr);
return new LogOffset(Long.valueOf(Iterables.get(splits, 0)), Long.valueOf(Iterables.get(splits, 1)));
}
}