org.terracotta.angela.common.util.TriggeringOutputStream Maven / Gradle / Ivy
/*
* Copyright Terracotta, Inc.
* Copyright Super iPaaS Integration LLC, an IBM Company 2024
*
* 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 org.terracotta.angela.common.util;
import java.util.function.Consumer;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TriggeringOutputStream extends LogOutputStream {
private final Consumer consumer;
public static final TriggeringOutputStream triggerOn(Pattern pattern, Consumer action) {
return new TriggeringOutputStream(line -> {
Matcher matcher = pattern.matcher(line);
if (matcher.matches()) {
action.accept(matcher.toMatchResult());
}
});
}
public final TriggeringOutputStream andTriggerOn(Pattern pattern, Consumer action) {
return new TriggeringOutputStream(
line -> {
try {
consumer.accept(line);
} finally {
Matcher matcher = pattern.matcher(line);
if (matcher
.matches()) {
action.accept(matcher.toMatchResult());
}
}
});
}
public final TriggeringOutputStream andForward(Consumer action) {
return new TriggeringOutputStream(
line -> {
try {
consumer.accept(line);
} finally {
action.accept(line);
}
});
}
private TriggeringOutputStream(Consumer consumer) {
this.consumer = consumer;
}
@Override
protected void processLine(final String line) {
consumer.accept(line);
}
}