forked from googleapis/google-cloud-java
/
WriteAndListLogEntries.java
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/
WriteAndListLogEntries.java
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/*
* Copyright 2016 Google Inc. All Rights Reserved.
*
* 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.cloud.examples.logging.snippets;
import com.google.cloud.MonitoredResource;
import com.google.cloud.Page;
import com.google.cloud.logging.LogEntry;
import com.google.cloud.logging.Logging;
import com.google.cloud.logging.Logging.EntryListOption;
import com.google.cloud.logging.LoggingOptions;
import com.google.cloud.logging.Payload.StringPayload;
import java.util.Collections;
import java.util.Iterator;
/**
* A snippet for Stackdriver Logging showing how to write a log entry. The snippet also shows how to
* list all log entries with a given log name.
*
* @see <a href="https://cloud.google.com/logging/docs/api/#sinks">Sinks</a>
*/
public class WriteAndListLogEntries {
public static void main(String... args) throws Exception {
// Create a service object
// Credentials are inferred from the environment
LoggingOptions options = LoggingOptions.getDefaultInstance();
try(Logging logging = options.getService()) {
// Create a log entry
LogEntry firstEntry = LogEntry.newBuilder(StringPayload.of("message"))
.setLogName("test-log")
.setResource(MonitoredResource.newBuilder("global")
.addLabel("project_id", options.getProjectId())
.build())
.build();
logging.write(Collections.singleton(firstEntry));
// List log entries
Page<LogEntry> entries = logging.listLogEntries(
EntryListOption.filter("logName=projects/" + options.getProjectId() + "/logs/test-log"));
Iterator<LogEntry> entryIterator = entries.iterateAll();
while (entryIterator.hasNext()) {
System.out.println(entryIterator.next());
}
}
}
}