com.itextpdf.commons.utils.SystemUtil Maven / Gradle / Ivy
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see Shouldn't be used in the Date creation since the value returned by this method is different in С#.
* For getting current time consistently use {@link DateTimeUtil#getCurrentTimeDate()}.
*
* @return relative time in milliseconds.
*/
public static long getRelativeTimeMillis() {
return System.currentTimeMillis();
}
public static long getFreeMemory() {
return Runtime.getRuntime().freeMemory();
}
/**
* Gets either java property or environment variable with given name.
*
* @param name the name of either java property or environment variable.
* @return property or variable value or null if there is no such.
*/
public static String getPropertyOrEnvironmentVariable(String name) {
String s = System.getProperty(name);
if (s == null) {
s = System.getenv(name);
}
return s;
}
public static boolean runProcessAndWait(String exec, String params) throws IOException, InterruptedException {
return runProcessAndWait(exec, params, null);
}
public static boolean runProcessAndWait(String exec, String params,
String workingDirPath) throws IOException, InterruptedException {
return runProcessAndGetExitCode(exec, params, workingDirPath) == 0;
}
public static int runProcessAndGetExitCode(String exec, String params) throws IOException, InterruptedException {
return runProcessAndGetExitCode(exec, params, null);
}
public static int runProcessAndGetExitCode(String exec, String params,
String workingDirPath) throws IOException, InterruptedException {
Process p = runProcess(exec, params, workingDirPath);
System.out.println(getProcessOutput(p));
return p.waitFor();
}
public static String runProcessAndGetOutput(String command, String params) throws IOException {
return getProcessOutput(runProcess(command, params, null));
}
public static StringBuilder runProcessAndCollectErrors(String execPath, String params) throws IOException {
return printProcessErrorsOutput(runProcess(execPath, params, null));
}
public static ProcessInfo runProcessAndGetProcessInfo(String command, String params) throws IOException,
InterruptedException {
Process p = runProcess(command, params, null);
String processStdOutput = printProcessStandardOutput(p).toString();
String processErrOutput = printProcessErrorsOutput(p).toString();
return new ProcessInfo(p.waitFor(), processStdOutput, processErrOutput);
}
static Process runProcess(String execPath, String params, String workingDirPath) throws IOException {
List cmdList = prepareProcessArguments(execPath, params);
String[] cmdArray = cmdList.toArray(new String[0]);
if (workingDirPath != null) {
File workingDir = new File(workingDirPath);
return Runtime.getRuntime().exec(cmdArray, null, workingDir);
} else {
return Runtime.getRuntime().exec(cmdArray);
}
}
static List prepareProcessArguments(String exec, String params) {
List cmdList;
if (new File(exec).exists()) {
cmdList = new ArrayList<>(Collections.singletonList(exec));
} else {
cmdList = new ArrayList<>(splitIntoProcessArguments(exec));
}
cmdList.addAll(splitIntoProcessArguments(params));
return cmdList;
}
static List splitIntoProcessArguments(String line) {
List list = new ArrayList<>();
Matcher m = Pattern.compile(SPLIT_REGEX).matcher(line);
while (m.find()) {
list.add(m.group(1).replace("'", "").replace("\"", "").trim());
}
return list;
}
static String getProcessOutput(Process p) throws IOException {
BufferedReader bri = new BufferedReader(new InputStreamReader(p.getInputStream()));
BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));
String line;
StringBuilder result = new StringBuilder();
while ((line = bri.readLine()) != null) {
result.append(line);
}
bri.close();
if (result.length() > 0) {
result.append('\n');
}
while ((line = bre.readLine()) != null) {
result.append(line);
}
bre.close();
return result.toString();
}
static StringBuilder printProcessErrorsOutput(Process p) throws IOException {
return printProcessOutput(p.getErrorStream());
}
static StringBuilder printProcessStandardOutput(Process p) throws IOException {
return printProcessOutput(p.getInputStream());
}
private static StringBuilder printProcessOutput(InputStream processStream) throws IOException {
StringBuilder builder = new StringBuilder();
BufferedReader bre = new BufferedReader(new InputStreamReader(processStream));
String line;
while ((line = bre.readLine()) != null) {
System.out.println(line);
builder.append(line);
}
bre.close();
return builder;
}
}