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From rahulsIOT <...@git.apache.org>
Subject [GitHub] phoenix pull request #242: PQS metrics - https://issues.apache.org/jira/brow...
Date Wed, 17 May 2017 01:58:29 GMT
Github user rahulsIOT commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/242#discussion_r116895997
  
    --- Diff: phoenix-queryserver/src/main/java/org/apache/phoenix/queryserver/metrics/sink/PqsFileSink.java
---
    @@ -0,0 +1,66 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF 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.apache.phoenix.queryserver.metrics.sink;
    +
    +
    +import org.apache.phoenix.queryserver.metrics.PqsConfiguration;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +import java.io.File;
    +import java.io.FileNotFoundException;
    +import java.io.UnsupportedEncodingException;
    +import java.io.FileOutputStream;
    +import java.io.PrintStream;
    +
    +
    +public class PqsFileSink extends PqsSink {
    +
    +    private PrintStream writer;
    +    private static final Logger LOG = LoggerFactory.getLogger(PqsFileSink.class);
    +    private String filename = PqsConfiguration.getFileSinkFilename();
    +
    +    public PqsFileSink() {
    +        try {
    +            writer = filename == null ? System.out
    +                    : new PrintStream(new FileOutputStream(new File(filename)),
    +                    true, "UTF-8");
    +        } catch (FileNotFoundException e) {
    +            LOG.error("Error creating "+ filename, e);
    --- End diff --
    
    Not sure which version you are looking at but there is a finally statement below. 
    
    finally {
                if (writer == null) {
                    writer = System.out;
                }
    
    If exception is thrown, then writer will be null and we set writer to be system.out. 


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