org.springframework.cloud.sleuth.instrument.web.TracePrintWriter.java Source code

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Here is the source code for org.springframework.cloud.sleuth.instrument.web.TracePrintWriter.java

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/*
 * Copyright 2013-2017 the original author or authors.
 *
 * 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.springframework.cloud.sleuth.instrument.web;

import java.io.PrintWriter;
import java.lang.invoke.MethodHandles;
import java.util.Locale;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.sleuth.Span;

/**
 * @author Marcin Grzejszczak
 */
class TracePrintWriter extends PrintWriter {

    private static final Log log = LogFactory.getLog(MethodHandles.lookup().lookupClass());

    private final PrintWriter delegate;
    private final Span span;

    TracePrintWriter(PrintWriter delegate, Span span) {
        super(delegate);
        this.delegate = delegate;
        this.span = span;
    }

    @Override
    public void flush() {
        if (log.isTraceEnabled()) {
            log.trace("Will annotate SS once the response is flushed");
        }
        SsLogSetter.annotateWithServerSendIfLogIsNotAlreadyPresent(this.span);
        this.delegate.flush();
    }

    @Override
    public void close() {
        if (log.isTraceEnabled()) {
            log.trace("Will annotate SS once the stream is closed");
        }
        SsLogSetter.annotateWithServerSendIfLogIsNotAlreadyPresent(this.span);
        this.delegate.close();
    }

    @Override
    public boolean checkError() {
        return this.delegate.checkError();
    }

    @Override
    public void write(int c) {
        this.delegate.write(c);
    }

    @Override
    public void write(char[] buf, int off, int len) {
        this.delegate.write(buf, off, len);
    }

    @Override
    public void write(char[] buf) {
        this.delegate.write(buf);
    }

    @Override
    public void write(String s, int off, int len) {
        this.delegate.write(s, off, len);
    }

    @Override
    public void write(String s) {
        this.delegate.write(s);
    }

    @Override
    public void print(boolean b) {
        this.delegate.print(b);
    }

    @Override
    public void print(char c) {
        this.delegate.print(c);
    }

    @Override
    public void print(int i) {
        this.delegate.print(i);
    }

    @Override
    public void print(long l) {
        this.delegate.print(l);
    }

    @Override
    public void print(float f) {
        this.delegate.print(f);
    }

    @Override
    public void print(double d) {
        this.delegate.print(d);
    }

    @Override
    public void print(char[] s) {
        this.delegate.print(s);
    }

    @Override
    public void print(String s) {
        this.delegate.print(s);
    }

    @Override
    public void print(Object obj) {
        this.delegate.print(obj);
    }

    @Override
    public void println() {
        this.delegate.println();
    }

    @Override
    public void println(boolean x) {
        this.delegate.println(x);
    }

    @Override
    public void println(char x) {
        this.delegate.println(x);
    }

    @Override
    public void println(int x) {
        this.delegate.println(x);
    }

    @Override
    public void println(long x) {
        this.delegate.println(x);
    }

    @Override
    public void println(float x) {
        this.delegate.println(x);
    }

    @Override
    public void println(double x) {
        this.delegate.println(x);
    }

    @Override
    public void println(char[] x) {
        this.delegate.println(x);
    }

    @Override
    public void println(String x) {
        this.delegate.println(x);
    }

    @Override
    public void println(Object x) {
        this.delegate.println(x);
    }

    @Override
    public PrintWriter printf(String format, Object... args) {
        return this.delegate.printf(format, args);
    }

    @Override
    public PrintWriter printf(Locale l, String format, Object... args) {
        return this.delegate.printf(l, format, args);
    }

    @Override
    public PrintWriter format(String format, Object... args) {
        return this.delegate.format(format, args);
    }

    @Override
    public PrintWriter format(Locale l, String format, Object... args) {
        return this.delegate.format(l, format, args);
    }

    @Override
    public PrintWriter append(CharSequence csq) {
        return this.delegate.append(csq);
    }

    @Override
    public PrintWriter append(CharSequence csq, int start, int end) {
        return this.delegate.append(csq, start, end);
    }

    @Override
    public PrintWriter append(char c) {
        return this.delegate.append(c);
    }
}