SystemInfo (utils 3.0 API)

java.lang.Object
- com.bluejeans.common.utils.SystemInfo

```
public class SystemInfo
extends Object
```
JVM and OS info

Author:

Dinesh Ilindra

Field Summary

Fields
Modifier and Type Field and Description

static String LINE_SEPARATOR
The current OS line separator.

static String PROCESS_ID
The JVM process id.

Fields
Modifier and Type	Field and Description
`static String`	`LINE_SEPARATOR` The current OS line separator.
`static String`	`PROCESS_ID` The JVM process id.

Constructor Summary

Constructors
Constructor and Description

SystemInfo()

Constructors
Constructor and Description
`SystemInfo()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Process`	`exec(String command)` Executes a command.
`Process`	`exec(String command, String[] envp, File dir)` Executes a command.
`String`	`execOut(String command)` Executes a command and returns the output of it.
`String`	`execOut(String command, String line)` Executes a command sends the given input line and returns the output of it.
`String`	`execOut(String command, String[] envp, File dir, boolean destroy)` Executes a command and returns the output of it.
`String`	`execOut(String command, String[] envp, File dir, String line, boolean destroy)` Executes a command sends the given input line and returns the output of it.
`ClassLoadingMXBean`	`getClassLoadingMXBean()` Returns the classloading MX bean.
`CompilationMXBean`	`getCompilationMXBean()` Returns the compilation MX bean.
`MemoryMXBean`	`getMemoryMXBean()` Returns the memory MX bean.
`OperatingSystemMXBean`	`getOsMXBean()` Returns the operating system MX bean.
`String`	`getProcessId()` Returns the process id.
`Map<String,Process>`	`getProcessMap()`
`Runtime`	`getRuntime()` Returns the JVM runtime.
`RuntimeMXBean`	`getRuntimeMXBean()` Returns the runtime MX bean.
`ThreadMXBean`	`getThreadMXBean()` Returns the thread MX bean.
`String`	`readLine(Process process)` Reads a line from the command stream.
`String`	`readLine(String command)` Reads a line from the command stream.
`String`	`readLines(Process process)` Reads all the output lines from the command stream.
`String`	`readLines(String command)` Reads all the output lines from the command stream.
`String`	`run(String command)` Executes a command and returns the output of it / exception if any
`static Process`	`runCommandFromStream(InputStream commandStream, String runName, String arguments, boolean deleteOnExit)` Runs a command from its stream data.
`void`	`writeLine(Process process, String line)` Writes a line to the command stream.
`void`	`writeLine(String command, String line)` Writes a line to the command stream.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LINE_SEPARATOR
```
public static final String LINE_SEPARATOR
```
    The current OS line separator.
  - PROCESS_ID
```
public static final String PROCESS_ID
```
    The JVM process id.
- Constructor Detail
  - SystemInfo
```
public SystemInfo()
```
- Method Detail
  - getRuntime
```
public Runtime getRuntime()
```
    Returns the JVM runtime.
    
    Returns:
    
    the runtime
  - getRuntimeMXBean
```
public RuntimeMXBean getRuntimeMXBean()
```
    Returns the runtime MX bean.
    
    Returns:
    
    the runtime MX bean
  - getThreadMXBean
```
public ThreadMXBean getThreadMXBean()
```
    Returns the thread MX bean.
    
    Returns:
    
    the thread MX bean
  - getMemoryMXBean
```
public MemoryMXBean getMemoryMXBean()
```
    Returns the memory MX bean.
    
    Returns:
    
    the memory MX bean
  - getOsMXBean
```
public OperatingSystemMXBean getOsMXBean()
```
    Returns the operating system MX bean.
    
    Returns:
    
    the operating system MX bean
  - getClassLoadingMXBean
```
public ClassLoadingMXBean getClassLoadingMXBean()
```
    Returns the classloading MX bean.
    
    Returns:
    
    the classloading MX bean
  - getCompilationMXBean
```
public CompilationMXBean getCompilationMXBean()
```
    Returns the compilation MX bean.
    
    Returns:
    
    the compilation MX bean
  - runCommandFromStream
```
public static Process runCommandFromStream(InputStream commandStream,
                                           String runName,
                                           String arguments,
                                           boolean deleteOnExit)
```
    Runs a command from its stream data.
    
    Parameters:
    
    commandStream - the command stream
    
    runName - the run name
    
    arguments - the arguments
    
    deleteOnExit - if should delete on exit?
    
    Returns:
    
    the process object
  - getProcessId
```
public String getProcessId()
```
    Returns the process id.
    
    Returns:
    
    the process id
  - getProcessMap
```
public Map<String,Process> getProcessMap()
```
    Returns:
    
    the processMap
  - writeLine
```
public void writeLine(String command,
                      String line)
```
    Writes a line to the command stream.
    
    Parameters:
    
    command - the command
    
    line - the line to send
  - writeLine
```
public void writeLine(Process process,
                      String line)
```
    Writes a line to the command stream.
    
    Parameters:
    
    process - the process
    
    line - the line to send
  - readLine
```
public String readLine(String command)
                throws IOException
```
    Reads a line from the command stream.
    
    Parameters:
    
    command - the command
    
    Returns:
    
    a line from output
    
    Throws:
    
    IOException - implicit
  - readLine
```
public String readLine(Process process)
                throws IOException
```
    Reads a line from the command stream.
    
    Parameters:
    
    process - the process
    
    Returns:
    
    a line from output
    
    Throws:
    
    IOException - implicit
  - readLines
```
public String readLines(String command)
                 throws IOException
```
    Reads all the output lines from the command stream.
    
    Parameters:
    
    command - the command
    
    Returns:
    
    the lines from output
    
    Throws:
    
    IOException - implicit
  - readLines
```
public String readLines(Process process)
                 throws IOException
```
    Reads all the output lines from the command stream.
    
    Parameters:
    
    process - the process
    
    Returns:
    
    the lines from output
    
    Throws:
    
    IOException - implicit
  - execOut
```
public String execOut(String command,
                      String line)
               throws IOException
```
    Executes a command sends the given input line and returns the output of it.
    
    Parameters:
    
    command - the command
    
    line - the line to send
    
    Returns:
    
    the output
    
    Throws:
    
    IOException - implicit
  - execOut
```
public String execOut(String command,
                      String[] envp,
                      File dir,
                      String line,
                      boolean destroy)
               throws IOException
```
    Executes a command sends the given input line and returns the output of it.
    
    Parameters:
    
    command - the command
    
    envp - the environment list
    
    dir - the directory
    
    line - the line to send
    
    destroy - should destroy process after done?
    
    Returns:
    
    the output
    
    Throws:
    
    IOException - implicit
  - execOut
```
public String execOut(String command)
               throws IOException
```
    Executes a command and returns the output of it.
    
    Parameters:
    
    command - the command
    
    Returns:
    
    the output
    
    Throws:
    
    IOException - implicit
  - run
```
public String run(String command)
```
    Executes a command and returns the output of it / exception if any
    
    Parameters:
    
    command - the command
    
    Returns:
    
    the output / stacktrace
  - execOut
```
public String execOut(String command,
                      String[] envp,
                      File dir,
                      boolean destroy)
               throws IOException
```
    Executes a command and returns the output of it.
    
    Parameters:
    
    command - the command
    
    envp - the environment
    
    dir - the directory
    
    destroy - destroy after completed?
    
    Returns:
    
    the output
    
    Throws:
    
    IOException - implicit
  - exec
```
public Process exec(String command)
             throws IOException
```
    Executes a command.
    
    Parameters:
    
    command - the command
    
    Returns:
    
    the process
    
    Throws:
    
    IOException - implicit
  - exec
```
public Process exec(String command,
                    String[] envp,
                    File dir)
             throws IOException
```
    Executes a command.
    
    Parameters:
    
    command - the command
    
    envp - the environment
    
    dir - the directory
    
    Returns:
    
    the output
    
    Throws:
    
    IOException - implicit

Class SystemInfo

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LINE_SEPARATOR

PROCESS_ID

Constructor Detail

SystemInfo

Method Detail

getRuntime

getRuntimeMXBean

getThreadMXBean

getMemoryMXBean

getOsMXBean

getClassLoadingMXBean

getCompilationMXBean

runCommandFromStream

getProcessId

getProcessMap

writeLine

writeLine

readLine

readLine

readLines

readLines

execOut

execOut

execOut

run

execOut

exec

exec