package railo.runtime.tag;
import java.io.IOException;
import javax.servlet.jsp.JspWriter;
import railo.commons.lang.StringUtil;
import railo.runtime.exp.ApplicationException;
import railo.runtime.exp.PageRuntimeException;
import railo.runtime.ext.tag.BodyTagTryCatchFinallyImpl;
import railo.runtime.op.Caster;
import railo.runtime.writer.CFMLWriter;
import railo.runtime.writer.WhiteSpaceWriter;
/**
* Suppresses extra white space and other output, produced by CFML within the tag's scope.
*
*
*
**/
public final class ProcessingDirective extends BodyTagTryCatchFinallyImpl {
/** A string literal; the character encoding to use to read the page. The value may be enclosed in single or double quotation marks, or none. */
//private String pageencoding=null;
private Boolean suppresswhitespace;
private boolean hasBody;
@Override
public void release() {
super.release();
//pageencoding=null;
suppresswhitespace=null;
}
/**
* constructor for the tag class
**/
public ProcessingDirective() {
}
/** set the value pageencoding
* A string literal; the character encoding to use to read the page. The value may be enclosed in single or double quotation marks, or none.
* @param pageencoding value to set
**/
public void setPageencoding(String pageencoding) {
//pageContext. get HttpServletResponse().set ContentType("text/html; charset="+pageencoding);
//this.pageencoding=pageencoding;
}
public void setExecutionlog(boolean executionlog) {
}
public void setPreservecase(boolean b) {
}
/** set the value suppresswhitespace
* Boolean indicating whether to suppress the white space and other output generated by the
* CFML tags within the cfprocessingdirective block.
* @param suppresswhitespace value to set
**/
public void setSuppresswhitespace(boolean suppresswhitespace) {
this.suppresswhitespace=Caster.toBoolean(suppresswhitespace);
}
@Override
public int doStartTag() throws ApplicationException {
if(suppresswhitespace!=null && !hasBody) {
throw new ApplicationException
("for suppressing whitespaces you must define a end tag for tag [cfprocessingdirective]");
}
if(suppresswhitespace!=null)return EVAL_BODY_BUFFERED;
return EVAL_BODY_INCLUDE;
}
@Override
public void doInitBody() {
}
@Override
public int doAfterBody() {
return SKIP_BODY;
}
/**
* sets if tag has a body or not
* @param hasBody
*/
public void hasBody(boolean hasBody) {
this.hasBody=hasBody;
}
@Override
public void doFinally() {
if(suppresswhitespace!=null) {
try {
JspWriter out = pageContext.getOut();
if(suppresswhitespace.booleanValue()) {
if(out instanceof WhiteSpaceWriter)out.write(bodyContent.getString());
else out.write(StringUtil.suppressWhiteSpace(bodyContent.getString()));
}
else {
if(out instanceof CFMLWriter){
((CFMLWriter)out).writeRaw(bodyContent.getString());
}
else
out.write(bodyContent.getString());
}
} catch (IOException e) {
throw new PageRuntimeException(Caster.toPageException(e));
}
}
}
}