com.sun.enterprise.admin.cli.remote.ProgressStatusPrinter Maven / Gradle / Ivy
/*
* Copyright (c) 2012, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.enterprise.admin.cli.remote;
import com.sun.enterprise.admin.progress.ProgressStatusClient;
import com.sun.enterprise.admin.remote.sse.GfSseInboundEvent;
import com.sun.enterprise.universal.i18n.LocalStringsImpl;
import com.sun.enterprise.util.StringUtils;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.api.admin.AdminCommandEventBroker;
import org.glassfish.api.admin.AdminCommandEventBroker.AdminCommandListener;
import org.glassfish.api.admin.CommandProgress;
import org.glassfish.api.admin.progress.ProgressStatusDTO;
import org.glassfish.api.admin.progress.ProgressStatusEvent;
/**
* Prints ProgressStatus changes to given logger
*
* @author mmares
*/
public class ProgressStatusPrinter implements AdminCommandListener {
private class Ticker extends Thread {
private final long pause;
private volatile boolean stop = false;
public Ticker(long pause) {
this.pause = pause;
this.setDaemon(true);
}
public void stopit() {
this.stop = true;
}
@Override
public void run() {
do {
try {
Thread.sleep(pause);
} catch (InterruptedException ex) {
}
if (stop) {
return;
}
} while (spin());
}
}
private static final String CONTENT_TYPE = "application/json";
private static final LocalStringsImpl strings = new LocalStringsImpl(ProgressStatusPrinter.class);
private static final char[] spinner = new char[] { '|', '/', '-', '\\' };
private String lastMessage;
private int lastMsgLength = 0;
private boolean firstPrint = true;
private int spinnerIndex = -1;
private Ticker ticker = null;
private ProgressStatusClient client = new ProgressStatusClient(null);
private CommandProgress commandProgress;
private final boolean disableAnimation;
private final boolean debugOutput;
private final Logger logger;
/**
* Construct new printer
*
* @param disableAnimation will print each message on new line and spinner as dots
* @param debugOutput expect printing of other data together with progress. New line must be printed ASAP.
*/
public ProgressStatusPrinter(boolean disableAnimation, boolean debugOutput, Logger logger) {
this.disableAnimation = disableAnimation;
this.debugOutput = debugOutput;
if (logger == null) {
this.logger = Logger.getLogger(ProgressStatusPrinter.class.getName());
} else {
this.logger = logger;
}
}
private synchronized boolean spin() {
if (commandProgress == null || !commandProgress.isSpinnerActive() || debugOutput || lastMsgLength <= 1) {
return false;
}
if (spinnerIndex >= 0 && !disableAnimation) {
System.out.print("\b\b");
lastMsgLength -= 2;
}
spinnerIndex++;
if (spinnerIndex >= spinner.length) {
spinnerIndex = 0;
}
if (disableAnimation) {
System.out.print('.');
lastMsgLength++;
} else {
System.out.print(spinner[spinnerIndex]);
System.out.print(' ');
lastMsgLength += 2;
}
return true;
}
@Override
public synchronized void onAdminCommandEvent(String name, GfSseInboundEvent event) {
try {
if (CommandProgress.EVENT_PROGRESSSTATUS_STATE.equals(name)) {
ProgressStatusDTO dto = event.getData(ProgressStatusDTO.class, CONTENT_TYPE);
client.mirror(dto);
commandProgress = (CommandProgress) client.getProgressStatus();
if (StringUtils.ok(commandProgress.getName()) && !StringUtils.ok(commandProgress.getLastMessage())) {
commandProgress.progress(strings.getString("progressstatus.message.starting", "Starting"));
}
printCommandProgress();
} else if (CommandProgress.EVENT_PROGRESSSTATUS_CHANGE.equals(name)) {
if (commandProgress == null) {
logger.log(Level.WARNING, strings.get("progressstatus.event.applyerror", "Inapplicable progress status event"));
return;
}
ProgressStatusEvent pse = event.getData(ProgressStatusEvent.class, CONTENT_TYPE);
client.mirror(pse);
printCommandProgress();
} else if (AdminCommandEventBroker.EventBrokerUtils.USER_MESSAGE_NAME.equals(name)) {
String msg = event.getData();
printUserMessage(msg);
}
} catch (IOException ex) {
logger.log(Level.SEVERE, strings.get("progressstatus.event.parseerror", "Can not parse progress status event"), ex);
}
}
private synchronized void printUserMessage(String message) {
if (message == null) {
return;
}
if (lastMsgLength > 0) {
if (disableAnimation || debugOutput) {
if (disableAnimation) {
System.out.println();
}
System.out.println(message);
System.out.print(lastMessage);
if (debugOutput) {
System.out.println();
}
} else {
System.out.print('\r');
System.out.println(message);
int spaceCount = lastMsgLength - message.length();
for (int i = 0; i < spaceCount; i++) {
System.out.print(' ');
}
System.out.println();
System.out.print(lastMessage);
}
} else {
System.out.println(message);
}
}
private synchronized void printCommandProgress() {
//Now print
if (commandProgress != null) {
String message = ProgressStatusClient.composeMessageForPrint(commandProgress);
//Print
if (StringUtils.ok(message) && !message.equals(lastMessage)) {
if (disableAnimation || debugOutput) {
if (!firstPrint && !debugOutput) {
System.out.println();
}
System.out.print(message);
if (debugOutput) {
System.out.println();
}
} else {
if (!firstPrint) {
System.out.print('\r');
}
System.out.print(message);
System.out.print(' ');
int spaceCount = lastMsgLength - message.length();
for (int i = 0; i < spaceCount; i++) {
System.out.print(' ');
}
for (int i = 0; i < spaceCount; i++) {
System.out.print('\b');
}
spinnerIndex = -1;
}
this.firstPrint = false;
this.lastMsgLength = message.length();
this.lastMessage = message;
}
//Change ticker
if (!debugOutput) {
if (commandProgress.isSpinnerActive()) {
if (this.ticker == null) {
this.ticker = new Ticker(disableAnimation ? 1500L : 500L);
this.ticker.start();
}
} else {
if (this.ticker != null) {
this.ticker.stopit();
this.ticker = null;
}
}
}
}
}
public synchronized void deleteLastMessage() {
if (lastMsgLength <= 0) {
return;
}
if (disableAnimation || debugOutput) {
System.out.println();
} else {
System.out.print('\r');
for (int i = 0; i < lastMsgLength; i++) {
System.out.print(' ');
}
System.out.print('\r');
}
if (this.ticker != null) {
this.ticker.stopit();
this.ticker = null;
}
lastMsgLength = 0;
}
public synchronized void reset() {
client = new ProgressStatusClient(null);
commandProgress = null;
lastMessage = null;
lastMsgLength = 0;
firstPrint = true;
if (this.ticker != null) {
this.ticker.stopit();
this.ticker = null;
}
}
}
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