crash.commands.mail.mail.groovy Maven / Gradle / Ivy

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This plugin allows to integrate JavaMail in CRaSH and provides a mail command

There is a newer version: 1.3.2

package crash.commands.mail

import org.crsh.cli.Argument
import org.crsh.cli.Command
import org.crsh.cli.Man
import org.crsh.cli.Option
import org.crsh.cli.Usage
import org.crsh.command.Pipe
import org.crsh.mail.MailPlugin
import org.crsh.text.ScreenBuffer
import org.crsh.text.Format

import java.util.concurrent.ExecutionException
import java.util.concurrent.Future


class mail {

  @Man("""Send an mail to a list of recipients.

The body of the mail is the input stream of the command. For example, the output of the "thread ls | thread dump" command
can be piped into the mail command: an email with the list of current JVM thread is sent to the admin:

% thread ls | thread dump | mail -s "The thread dump" [email protected]
""")
  @Usage("send an mail to a list of recipients, the body of the mail is the input stream of the command.")
  @Command
  Pipe main(
      @Usage("block until the mails are delivered")
      @Option(names=["b","block"])
      Boolean block,
      @Usage("mail subject")
      @Option(names=["s","subject"])
      String subject,
      @Usage("mail recipients")
      @Argument List recipients) {
    ScreenBuffer buffer = new ScreenBuffer();
    MailPlugin plugin = crash.context.getPlugin(MailPlugin.class);
    new Pipe() {

      @Override
      void provide(CharSequence element) {
        buffer.append(element);
        context.provide(element)
      }

      @Override
      void close() throws org.crsh.command.ScriptException {
        StringBuilder sb = new StringBuilder()
        sb.append("");
        buffer.format(Format.TEXT, sb);
        sb.append("");
        Future future = plugin.send(recipients, subject, sb.toString(), "text/html;charset=UTF-8");
        if (block) {
          try {
            future.get();
          }
          catch (ExecutionException e) {
            throw new org.crsh.command.ScriptException(e);
          }
        }
        super.close()
      }
    }
  }
}