org.elasticsearch.monitor.dump.summary.SummaryDumpContributor Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.monitor.dump.summary;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.monitor.dump.Dump;
import org.elasticsearch.monitor.dump.DumpContributionFailedException;
import org.elasticsearch.monitor.dump.DumpContributor;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.Locale;
/**
*
*/
public class SummaryDumpContributor implements DumpContributor {
private final DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss,SSS", Locale.ROOT);
private final Object formatterLock = new Object();
public static final String SUMMARY = "summary";
private final String name;
@Inject
public SummaryDumpContributor(@Assisted String name, @Assisted Settings settings) {
this.name = name;
}
public String getName() {
return name;
}
public void contribute(Dump dump) throws DumpContributionFailedException {
PrintWriter writer = new PrintWriter(dump.createFileWriter("summary.txt"));
try {
processHeader(writer, dump.timestamp());
processCause(writer, dump.cause());
processThrowables(writer, dump);
} catch (Exception e) {
throw new DumpContributionFailedException(getName(), "Failed to generate", e);
} finally {
try {
writer.close();
} catch (Exception e) {
// ignore
}
}
}
private void processHeader(PrintWriter writer, long timestamp) {
synchronized (formatterLock) {
writer.println("===== TIME =====");
writer.println(dateFormat.format(new Date(timestamp)));
writer.println();
}
}
private void processCause(PrintWriter writer, String cause) {
writer.println("===== CAUSE =====");
writer.println(cause);
writer.println();
}
private void processThrowables(PrintWriter writer, Dump dump) {
writer.println("===== EXCEPTIONS =====");
Object throwables = dump.context().get("throwables");
if (throwables == null) {
return;
}
if (throwables instanceof Throwable[]) {
Throwable[] array = (Throwable[]) throwables;
for (Throwable t : array) {
writer.println();
writer.println("---- Exception ----");
t.printStackTrace(writer);
}
} else if (throwables instanceof Collection) {
Collection collection = (Collection) throwables;
for (Object o : collection) {
Throwable t = (Throwable) o;
writer.println();
writer.println("---- Exception ----");
t.printStackTrace(writer);
}
} else {
throw new DumpContributionFailedException(getName(), "Can't handle throwables type [" + throwables.getClass() + "]");
}
writer.println();
}
}