How to use

performInjection

method

in

rocks.inspectit.agent.java.eum.html.StreamedHtmlScriptInjector

@Override
public PrintWriter append(CharSequence csq) {
  String newValue = injector.performInjection(csq);
  if (newValue == null) {
    originalWriter.append(csq);
  } else {
    originalWriter.write(newValue);
  }
  return this;
}

@Override
public void write(String s) {
  String newValue = injector.performInjection(s);
  if (newValue == null) {
    originalWriter.write(s);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(String x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(String s) {
  String newValue = injector.performInjection(s);
  if (newValue == null) {
    originalWriter.print(s);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(char x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(int x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(boolean x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(float x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void println(Object x) {
  String newValue = injector.performInjection(x + NL);
  if (newValue == null) {
    originalWriter.println(x);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void write(int c) {
  String newValue = injector.performInjection(String.valueOf((char) c));
  if (newValue == null) {
    originalWriter.write(c);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public PrintWriter format(String format, Object... args) {
  String newValue = injector.performInjection(String.format(format, args));
  if (newValue == null) {
    originalWriter.format(format, args);
  } else {
    originalWriter.write(newValue);
  }
  return this;
}

@Override
@SuppressWarnings({ "PMD", "UseVarags" })
public void print(char[] s) {
  String newValue = injector.performInjection(String.valueOf(s));
  if (newValue == null) {
    originalWriter.print(s);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(char c) {
  String newValue = injector.performInjection(String.valueOf(c));
  if (newValue == null) {
    originalWriter.print(c);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(boolean b) {
  String newValue = injector.performInjection(String.valueOf(b));
  if (newValue == null) {
    originalWriter.print(b);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public PrintWriter format(Locale l, String format, Object... args) {
  String newValue = injector.performInjection(String.format(l, format, args));
  if (newValue == null) {
    originalWriter.format(l, format, args);
  } else {
    originalWriter.write(newValue);
  }
  return this;
}

@Override
@SuppressWarnings({ "PMD", "UseVarags" })
public void write(char[] buf) {
  String newValue = injector.performInjection(String.valueOf(buf));
  if (newValue == null) {
    originalWriter.write(buf);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(float f) {
  String newValue = injector.performInjection(String.valueOf(f));
  if (newValue == null) {
    originalWriter.print(f);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(double d) {
  String newValue = injector.performInjection(String.valueOf(d));
  if (newValue == null) {
    originalWriter.print(d);
  } else {
    originalWriter.write(newValue);
  }
}

@Override
public void print(long l) {
  String newValue = injector.performInjection(String.valueOf(l));
  if (newValue == null) {
    originalWriter.print(l);
  } else {
    originalWriter.write(newValue);
  }
}

@Test
public void testPreventDoubleInejection() {
  String src = loadHtmlSource("/html/testCase-HeadInjection.html");
  String modifiedA = runInjector(src);
  String modified = new StreamedHtmlScriptInjector(TAG_TO_INJECT).performInjection(modifiedA);
  assertThat(modified, equalTo(null));
}